OTLK / Outlook Therapeutics, Inc. - Zgłoszenia SEC, Raport roczny, o pełnomocnictwie

Outlook Therapeutics, Inc.

Podstawowe statystyki
LEI 5493007AWUJ6HPMCBH11
CIK 1649989
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Outlook Therapeutics, Inc.
SEC Filings (Chronological Order)
Na tej stronie znajduje się pełna, chronologiczna lista zgłoszeń SEC, z wyłączeniem zgłoszeń własności, które udostępniamy gdzie indziej.
June 1, 2026 DEFA14A

Outlook Therapeutics, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

June 1, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 1, 2026 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 1, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

June 1, 2026 EX-99.1

Outlook Therapeutics Announces Resubmission of Biologics License Application to U.S. FDA for ONS-5010/LYTENAVA™ (bevacizumab-vikg)

Exhibit 99.1 Outlook Therapeutics Announces Resubmission of Biologics License Application to U.S. FDA for ONS-5010/LYTENAVA™ (bevacizumab-vikg) ISELIN, N.J., June 1, 2026 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on the development and commercialization of ONS-5010/LYTENAVA™ (bevacizumab-vikg, bevacizumab gamma) for the treatment of retinal diseases, today an

June 1, 2026 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A   (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission O

May 29, 2026 424B5

8,539,709 Shares of Common Stock

As Filed Pursuant to Rule 424(b)(5) Registration No. 333-278340 PROSPECTUS SUPPLEMENT (To Prospectus Dated April 5, 2024) 8,539,709 Shares of Common Stock Pursuant to this prospectus supplement and accompanying prospectus, we are offering 8,539,709 shares of our common stock, par value $0.01 per share, to a single accredited institutional investor, or the purchaser. The offering price for each sha

May 29, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 29, 2026 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 29, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 28, 2026 EX-4.1

[Signature Page Follows]

Exhibit 4.1 GMS Ventures & Investments Intertrust Corporate Services(Cayman)Ltd, 190 Elgin Avenue, George Town Grand Cayman, E9, KYI-9007 962 6 582 7999 May 28, 2026 Re: Amendment to Existing Warrants Ladies and Gentlemen: Reference is hereby made to the registered direct offering on or about the date hereof (the “Offering”) by Outlook Therapeutics, Inc. (the “Company”) of shares of the Company’s

May 28, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 28, 2026 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 28, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 28, 2026 EX-10.1

SECURITIES PURCHASE AGREEMENT

Exhibit 10.1 Execution Version SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of May 28 2026, between Outlook Therapeutics, Inc., a Delaware corporation (the “Company”), and the purchaser identified on the signature pages hereto (including its successors and assigns, the “Purchaser”). WHEREAS, subject to the terms and conditions set forth in this Ag

May 26, 2026 EX-99.1

Outlook Therapeutics Wins Appeal Following Formal Dispute Resolution Process for ONS-5010/LYTENAVA™ (bevacizumab-vikg) Company plans to resubmit BLA to the FDA in June 2026

Exhibit 99.1 Outlook Therapeutics Wins Appeal Following Formal Dispute Resolution Process for ONS-5010/LYTENAVA™ (bevacizumab-vikg) Company plans to resubmit BLA to the FDA in June 2026 ISELIN, N.J., May 26, 2026 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on the development and commercialization of ONS-5010/LYTENAVA™ (bevacizumab-vikg, bevacizumab gamma) for t

May 26, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 26, 2026 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 26, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 22, 2026 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A   (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☒ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission On

May 18, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2026 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 18, 2026 EX-99.1

Outlook Therapeutics Reports Second Quarter Fiscal Year 2026 Financial Results and Provides Corporate Update

Exhibit 99.1 Outlook Therapeutics Reports Second Quarter Fiscal Year 2026 Financial Results and Provides Corporate Update · Completed Formal Dispute Resolution Meeting with FDA regarding Complete Response Letter (CRL) for ONS-5010; Decision Expected This Month · Continued expansion of LYTENAVA™ (bevacizumab gamma) in Europe with Commercial Distribution Agreement with Mediconsult AG in Switzerland

May 15, 2026 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

May 13, 2026 EX-10.1

AT THE MARKET OFFERING AGREEMENT

Exhibit 10.1 AT THE MARKET OFFERING AGREEMENT May 13, 2026 H.C. Wainwright & Co., LLC 430 Park Avenue New York, New York 10022 Ladies and Gentlemen: Outlook Therapeutics, Inc., a corporation organized under the laws of Delaware (the “Company”), confirms its agreement (this “Agreement”) with H.C. Wainwright & Co., LLC (the “Manager”) as follows: 1.             Definitions. The terms that follow, wh

May 13, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 12, 2026 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 12, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 13, 2026 424B5

Up to $100,000,000 Common Stock

Filed Pursuant to Rule 424(b)(5) Registration No. 333-278340 PROSPECTUS SUPPLEMENT (To Prospectus dated April 5, 2024) Up to $100,000,000 Common Stock We have entered into a sales agreement dated May 13, 2026, or the Sales Agreement, with H.C. Wainwright & Co., LLC, or Wainwright, relating to the issuance and sale of shares of our common stock, par value $0.01 per share, offered by this prospectus

April 23, 2026 EX-4.2

FORM OF PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT OUTLOOK THERAPEUTICS, INC.

Exhibit 4.2 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR

April 23, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 22, 2026 Outlook Therapeuti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 22, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissi

April 23, 2026 424B5

16,129,033 Shares of Common Stock

As Filed Pursuant to Rule 424(b)(5) Registration No. 333-278340 PROSPECTUS SUPPLEMENT (To Prospectus Dated April 5, 2024) 16,129,033 Shares of Common Stock We are offering to certain investors 16,129,033 shares of our common stock, par value $0.01 per share. The offering price for each share of common stock is $0.31. In a concurrent private placement, we are also offering to the purchasers of shar

April 23, 2026 EX-4.1

FORM OF COMMON STOCK PURCHASE WARRANT OUTLOOK THERAPEUTICS, INC.

Exhibit 4.1 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR

April 23, 2026 EX-10.1

SECURITIES PURCHASE AGREEMENT

Exhibit 10.1 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of April 22, 2026, between Outlook Therapeutics, Inc., a Delaware corporation (the “Company”), and each purchaser identified on the signature pages hereto (each, including its successors and assigns, a “Purchaser” and collectively the “Purchasers”). WHEREAS, subject to the terms and conditi

April 21, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2026 Outlook Therapeuti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissi

April 21, 2026 EX-99.1

Outlook Therapeutics Completes Federal Dispute Resolution (FDR) Meeting with FDA for ONS-5010/LYTENAVA™ (bevacizumab-vikg) Formal decision expected in May 2026

Exhibit 99.1 Outlook Therapeutics Completes Federal Dispute Resolution (FDR) Meeting with FDA for ONS-5010/LYTENAVA™ (bevacizumab-vikg) Formal decision expected in May 2026 ISELIN, N.J., April 21, 2026 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on enhancing the standard of care for bevacizumab for the treatment of retina diseases, today announced that it has c

April 7, 2026 EX-99.1

Outlook Therapeutics Announces Formal Dispute Resolution Request for ONS-5010/LYTENAVA™ (bevacizumab-vikg) Accepted by FDA

Exhibit 99.1 Outlook Therapeutics Announces Formal Dispute Resolution Request for ONS-5010/LYTENAVA™ (bevacizumab-vikg) Accepted by FDA ISELIN, N.J., April 7, 2026 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on enhancing the standard of care for bevacizumab for the treatment of retina diseases, today announced that it submitted a formal dispute resolution reque

April 7, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 7, 2026 Outlook Therapeutic

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 7, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissio

March 25, 2026 EX-4.2

FORM OF PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT OUTLOOK THERAPEUTICS, INC.

Exhibit 4.2 FORM OF PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT OUTLOOK THERAPEUTICS, INC. Warrant Number: Issue Date: March 25, 2026 THIS PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [●] or its permitted assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at a

March 25, 2026 EX-4.1

FORM OF COMMON STOCK PURCHASE WARRANT OUTLOOK THERAPEUTICS, INC.

Exhibit 4.1 FORM OF COMMON STOCK PURCHASE WARRANT OUTLOOK THERAPEUTICS, INC. Warrant Number: Issue Date: March 25, 2026 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [●] or his, her or its permitted assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after

March 25, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 23, 2026 Outlook Therapeuti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 23, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissi

March 25, 2026 424B5

$5,000,000 20,000,000 Shares of Common Stock 20,000,000 Common Warrants to Purchase up to 20,000,000 Shares of Common Stock 20,000,000 Shares of Common Stock Underlying Common Warrants 1,400,000 Placement Agent Warrants to Purchase up to 1,400,000 Sh

As Filed Pursuant to Rule 424(b)(5) Registration No. 333-278340 PROSPECTUS SUPPLEMENT (To Prospectus Dated April 5, 2024) $5,000,000 20,000,000 Shares of Common Stock 20,000,000 Common Warrants to Purchase up to 20,000,000 Shares of Common Stock 20,000,000 Shares of Common Stock Underlying Common Warrants 1,400,000 Placement Agent Warrants to Purchase up to 1,400,000 Shares of Common Stock 1,400,0

March 25, 2026 EX-10.1

SECURITIES PURCHASE AGREEMENT

Exhibit 10.1 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of March 23, 2026, between Outlook Therapeutics, Inc., a Delaware corporation (the “Company”), and each purchaser identified on the signature pages hereto (each, including its successors and assigns, a “Purchaser” and collectively the “Purchasers”). WHEREAS, subject to the terms and conditi

March 23, 2026 424B5

Subject to Completion, dated March 23, 2026

As Filed Pursuant to Rule 424(b)(5) Registration No. 333-278340 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any state where the offer or sale is not permitted. Subject to Complet

March 16, 2026 EX-10.2

PROMISSORY NOTE

Exhibit 10.2 PROMISSORY NOTE Effective Date: March 16, 2026 U.S. $18,360,000.00 FOR VALUE RECEIVED, Outlook Therapeutics, Inc., a Delaware corporation (“Borrower”), promises to pay to Atlas Sciences, LLC, a Utah limited liability company, or its successors or assigns (“Lender”), $18,360,000.00 and any interest, fees, charges, and late fees accrued hereunder on the date that is fifteen (15) months

March 16, 2026 EX-99.1

Supplemental Risk Factors

Exhibit 99.1 Supplemental Risk Factors Except as set forth below, as of March 16, 2026, there have been no material changes to the risk factors that were previously disclosed in Item 1A in the Company’s Annual Report on Form 10-K for the year ended September 30, 2025 filed with the Securities and Exchange Commission on December 19, 2025. There is substantial doubt about our ability to continue as

March 16, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2026 Outlook Therapeuti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissi

March 16, 2026 EX-10.3

AMENDMENT #2 TO CONVERTIBLE PROMISSORY NOTE

Exhibit 10.3 March 13, 2026 AMENDMENT #2 TO CONVERTIBLE PROMISSORY NOTE This Amendment #2 to Convertible Promissory Note (this “Amendment #2”) is entered into as of March 12, 2026, by and between Avondale Capital, LLC, a Utah limited liability company (“Lender”), and Outlook Therapeutics, Inc., a Delaware corporation (“Borrower”). Capitalized terms used but not otherwise defined herein shall have

March 16, 2026 EX-10.1

Note Purchase Agreement

Exhibit 10.1 Note Purchase Agreement This Note Purchase Agreement (this “Agreement”), dated as of March 16, 2026 (the “Effective Date”), is entered into by and between Outlook Therapeutics, Inc., a Delaware corporation (“Company”), and Atlas Sciences, LLC, a Utah limited liability company, its successors and/or assigns (“Investor”). A.            Company and Investor are executing and delivering t

March 11, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 6, 2026 Outlook Therapeutic

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 6, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissio

March 11, 2026 EX-99.1

March 6, 2026

Exhibit 99.1 840 Walnut Street  Julia A. Haller, MD Suite 1510  Philadelphia, PA 19107 Ophthalmologist-in-Chief and William Tasman, MD, Endowed Chair Professor and Chair of Ophthalmology Sidney Kimmel Medical College at Thomas Jefferson University Jhaller@willseye org T 215-928-3073 March 6, 2026 Mr. Bob Jahr Chief Executive Officer Outlook Therapeutics, Inc. 111S. Wood Ave, Unit #100 Iselin, NJ 0

March 10, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2026 Outlook Therapeuti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissi

March 5, 2026 EX-99.1

Outlook Therapeutics Provides Update Following Type A Meeting with FDA Regarding ONS-5010/LYTENAVA™ (bevacizumab-vikg)

Exhibit 99.1 Outlook Therapeutics Provides Update Following Type A Meeting with FDA Regarding ONS-5010/LYTENAVA™ (bevacizumab-vikg) ISELIN, N.J., March 5, 2026 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on enhancing the standard of care for bevacizumab for the treatment of retina diseases, today provided an update following its recent Type A meeting with the U

March 5, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2026 Outlook Therapeutic

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissio

February 18, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2026 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

February 17, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 17, 2026 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 17, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

February 17, 2026 EX-99.1

Outlook Therapeutics Reports First Quarter Fiscal Year 2026 Financial Results and Provides Corporate Update

Exhibit 99.1 Outlook Therapeutics Reports First Quarter Fiscal Year 2026 Financial Results and Provides Corporate Update · Continued expansion of LYTENAVA™ (bevacizumab gamma) in Europe underway, including commercial launch in Austria in January 2026 · Additional European launches expected in 2026 · Type A meeting request submitted to the U.S. Food and Drug Administration for ONS-5010 ISELIN, N.J.

February 17, 2026 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

February 11, 2026 EX-99.1

Outlook Therapeutics Submits Type A Meeting Request to FDA Following Complete Response Letter

Exhibit 99.1 Outlook Therapeutics Submits Type A Meeting Request to FDA Following Complete Response Letter ISELIN, N.J., February 11, 2026 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on enhancing the standard of care for bevacizumab for the treatment of retina diseases, today announced that it has submitted a Type A meeting request to the U.S. Food and Drug Adm

February 11, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 11, 2026 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 11, 2026 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

January 26, 2026 DEFA14A

Outlook Therapeutics, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

January 26, 2026 ARS

ARS

CORPORATE ANNUAL REPORT NASDAQ: OTLK outlooktherapeutics.com 202UNITEDSTATES SECURITIESANDEXCHANGECOMMISSION WASHINGTON,D.C.20549 FORM10-K ☒ ANNUALREPORTPURSUANTTOSECTION13OR15(d)OFTHESECURITIESEXCHANGEACTOF1934 ForthefiscalyearendedSeptember30,2025 OR ☐ TRANSITIONREPORTPURSUANTTOSECTION13OR15(d)OFTHESECURITIESEXCHANGEACTOF1934 Forthetransitionperiodfrom to CommissionFileNumber:001-37759 OUTLOOKT

January 26, 2026 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A   (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission O

January 2, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 31, 2025 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 31, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

January 2, 2026 EX-99.1

Outlook Therapeutics Provides Regulatory Update on U.S. Food and Drug Administration Review of ONS-5010/LYTENAVA™ (bevacizumab-vikg) for the Treatment of Wet AMD

Exhibit 99.1 Outlook Therapeutics Provides Regulatory Update on U.S. Food and Drug Administration Review of ONS-5010/LYTENAVA™ (bevacizumab-vikg) for the Treatment of Wet AMD • FDA issues Complete Response Letter (CRL) for resubmitted ONS-5010 BLA ISELIN, N.J., December 31, 2025 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on enhancing the standard of care for b

December 19, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended September 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37759 OUTLOO

December 19, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 19, 2025 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 19, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

December 19, 2025 EX-21.1

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant d Name of Subsidiary State or Other Jurisdiction Outlook Therapeutics Pty Ltd Australia Outlook Therapeutics NL B.V. Netherlands Outlook Therapeutics CH GmbH Switzerland Outlook Therapeutics DE GmbH Germany Outlook Therapeutics Limited (dormant subsidiary) England and Wales Outlook Therapeutics Limited Republic of Ireland This list does not include joint

December 19, 2025 EX-99.1

Outlook Therapeutics Reports Financial Results for Fiscal Year 2025

Exhibit 99.1 Outlook Therapeutics Reports Financial Results for Fiscal Year 2025 ISELIN, N.J., December 19, 2025 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on enhancing the standard of care for bevacizumab for the treatment of retina diseases, today announced financial results for fiscal year 2025. Financial Highlights for the Fiscal Year Ended September 30, 2

December 19, 2025 EX-10.12

Outlook Therapeutics, Inc. Non-Employee Director Compensation Policy, as amended and restated, effective as of October 1, 2024.

Exhibit 10.12 OUTLOOK THERAPEUTICS, INC. NON-EMPLOYEE DIRECTOR COMPENSATION POLICY AS AMENDED AND RESTATED EFFECTIVE OCTOBER 1, 2024 Each member of the Board of Directors (the “Board”) who is not also serving as an employee of Outlook Therapeutics, Inc. (the “Company”) or any of its subsidiaries (each such member, an “Eligible Director”) will receive the compensation described in this Non-Employee

December 19, 2025 EX-4.1

Description of Registrant’s securities.

Exhibit 4.1 Description of Registrant’s Securities The following is a description of the capital stock of Outlook Therapeutics, Inc. (the “Company,” “we,” “our,” or “us”). The following summary description is based on the provisions of our Amended and Restated Certificate of Incorporation, as amended (the “Certificate of Incorporation”), our Amended and Restated Bylaws, (the “Bylaws”), and the app

November 13, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 13, 2025 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 13, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

November 3, 2025 EX-99.1

Outlook Therapeutics Re-Submits Biologics License Application for ONS-5010

Exhibit 99.1 Outlook Therapeutics Re-Submits Biologics License Application for ONS-5010 ISELIN, N.J., November 3, 2025 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on optimizing the standard of care for bevacizumab for the treatment of retina diseases, today announced it has re-submitted its Biologics License Application (BLA) to the U.S. Food and Drug Administr

November 3, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 3, 2025 Outlook Therapeu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 3, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commis

September 29, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 29, 2025 Outlook Therap

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 29, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Comm

September 29, 2025 EX-99.1

Outlook Therapeutics Provides Update on Type A Meeting with FDA

Exhibit 99.1 Outlook Therapeutics Provides Update on Type A Meeting with FDA ISELIN, N.J., September 29, 2025 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on optimizing the standard of care for bevacizumab for the treatment of retina diseases, today announced that it has completed the Type A Meeting with the U.S. Food and Drug Administration (FDA) to discuss the

September 5, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 5, 2025 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 5, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

September 2, 2025 EX-99.1

Outlook Therapeutics Provides Regulatory Update on U.S. Food and Drug Administration Review of ONS-5010/LYTENAVA™ (bevacizumab-vikg) for the Treatment of Wet AMD

Exhibit 99.1 Outlook Therapeutics Provides Regulatory Update on U.S. Food and Drug Administration Review of ONS-5010/LYTENAVA™ (bevacizumab-vikg) for the Treatment of Wet AMD · FDA issues Complete Response Letter (CRL) for resubmitted ONS-5010 BLA · Outlook Therapeutics plans to work with FDA to address the Agency’s issues · Company to host a conference call and webcast today, August 28th at 8:30

September 2, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 28, 2025 Outlook Therapeut

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 28, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commiss

August 14, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 14, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commiss

August 14, 2025 EX-10.2

Master Services Agreement by and among Outlook Therapeutics, Inc., Outlook Therapeutics Ltd, and Alloga (Nederland) B.V., dated January 29, 2025 (portions of this exhibit have been redacted pursuant to Item 601(b)(10)(iv) of Regulation S-K).

Exhibit 10.2 Confidential Portions of this Exhibit have been omitted because they are both not material and the type of information that the registrant customarily and actually treats as private or confidential. Information that has been omitted has been marked in this exhibit with, black boxes, in accordance with Regulation S-K, Item 601(b)(10)(iv). MASTER SERVICES AGREEMENT (1)ALLOGA (NEDERLAND)

August 14, 2025 EX-99.1

Outlook Therapeutics Reports Financial Results for Third Quarter Fiscal Year 2025 and Provides Corporate Update

Exhibit 99.1 Outlook Therapeutics Reports Financial Results for Third Quarter Fiscal Year 2025 and Provides Corporate Update · First commercial sales of LYTENAVA™ (bevacizumab gamma) achieved in Europe · ONS-5010 / LYTENAVA™ (bevacizumab-vikg) Prescription Drug User Fee Act (PDUFA) goal date of August 27, 2025 in the United States ISELIN, N.J., August 14, 2025 — Outlook Therapeutics, Inc. (Nasdaq:

August 14, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

July 1, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 28, 2025 Outlook Therapeutic

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 28, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissio

July 1, 2025 EX-10.1

Executive Employment Agreement by and between Robert C. Jahr and Outlook Therapeutics, Inc, dated June 28, 2025.

Exhibit 10.1 EXECUTIVE Employment Agreement This Executive Employment Agreement (“Agreement”) is made and entered into as of June 28, 2025, by and between Robert Jahr (“Executive”) and Outlook Therapeutics, Inc. (“Company”). Whereas, the Company desires to employ Executive as its Chief Executive Officer and President and provide Executive with certain compensation and benefits in return for Execut

June 2, 2025 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 2, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 23, 2025 424B5

9,285,714 Shares of Common Stock Warrants to Purchase 18,571,428 Shares of Common Stock

As Filed Pursuant to Rule 424(b)(5) Registration No. 333-278340 PROSPECTUS SUPPLEMENT (To Prospectus Dated April 5, 2024) 9,285,714 Shares of Common Stock Warrants to Purchase 18,571,428 Shares of Common Stock We are offering (i) 9,285,714 shares of our common stock and (ii) accompanying warrants, or the purchase warrants, to purchase up to an aggregate of 18,571,428 shares of our common stock (an

May 23, 2025 EX-1.1

Underwriting Agreement, dated May 22, 2025, by and between the Company and BTIG LLC.

Exhibit 1.1 OUTLOOK THERAPEUTICS, INC. (a Delaware corporation) 9,285,714 Shares of Common Stock Warrants to Purchase up to 18,571,428 Shares of Common Stock UNDERWRITING AGREEMENT May 22, 2025 BTIG, LLC as Representative of the several Underwriters c/o BTIG, LLC 350 Bush Street, 9th Floor San Francisco, CA 94104 Ladies and Gentlemen: Outlook Therapeutics, Inc., a Delaware corporation (the “Compan

May 23, 2025 EX-4.1

Form of Warrant.

Exhibit 4.1 FORM OF COMMON STOCK PURCHASE WARRANT OUTLOOK THERAPEUTICS, INC. Warrant Number: 2025A-[●] Issue Date: May [●], 2025 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [●] or its permitted assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the

May 23, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 22, 2025 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 22, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 22, 2025 424B5

Subject to Completion, dated May 22, 2025

As Filed Pursuant to Rule 424(b)(5) Registration No. 333-278340 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any state where the offer or sale is not permitted. Subject to Complet

May 15, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2025 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 15, 2025 EX-99.1

Outlook Therapeutics Reports Financial Results for Second Quarter Fiscal Year 2025 and Provides Corporate Update

EX-99.1 2 tm2515284d1ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 Outlook Therapeutics Reports Financial Results for Second Quarter Fiscal Year 2025 and Provides Corporate Update · LYTENAVA™ (bevacizumab gamma) on track for planned first commercial launches in Germany and the United Kingdom (UK) in Q2 CY2025 · Prescription Drug User Fee Act (PDUFA) goal date of August 27, 2025 in the United States ISELIN,

May 15, 2025 10-Q

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Table of Contents tttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

May 14, 2025 424B3

7,074,637 Shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-285438 PROSPECTUS SUPPLEMENT NO. 1 (To Prospectus Dated March 7, 2025) 7,074,637 Shares of Common Stock This Prospectus Supplement No. 1, or the Prospectus Supplement, is being filed to update and supplement the information contained in the “Selling Stockholders” section of our prospectus, dated March 7, 2025, which forms a part of our Registra

May 14, 2025 424B3

21,720,655 shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-285973 PROSPECTUS SUPPLEMENT NO. 1 (To Prospectus Dated March 28, 2025) 21,720,655 shares of Common Stock This Prospectus Supplement No. 1, or the Prospectus Supplement, is being filed to update and supplement the information contained in the “Selling Stockholders” section of our prospectus, dated March 28, 2025, which forms a part of our Regis

April 11, 2025 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 9, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissio

April 11, 2025 EX-10.1

Executive Employment Agreement by and between Robert C. Jahr and Outlook Therapeutics, Inc, dated June 28, 2025 (incorporated by reference to Exhibit 10.1 to the Company’s current report on Form 8-K filed with the SEC on July 1, 2025).

Exhibit 10.1 April 10, 2025 Lawrence A. Kenyon VIA EMAIL/DOCUSIGN Dear Mr. Kenyon, In recognition of your contributions to date and our important future objectives, Outlook Therapeutics, Inc. (the “Company”) is offering you the retention bonus opportunity described below. 1.Retention Bonus. Except as otherwise provided in Section 3 below, if you remain continuously employed by the Company in good

April 8, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 8, 2025 Outlook Therapeutic

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 8, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissio

March 28, 2025 424B3

21,720,655 shares of Common Stock

Filed pursuant to 424(b)(3) Registration No. 333-285973 PROSPECTUS 21,720,655 shares of Common Stock This prospectus covers the offer and resale by the selling stockholders identified in this prospectus of up to an aggregate of 21,720,655 shares of our common stock, which consists of (i) 7,074,637 shares of our common stock issuable upon the exercise of outstanding Tranche B warrants to purchase s

March 26, 2025 CORRESP

OUTLOOK THERAPEUTICS, INC. 111 S. Wood Avenue Unit #100 Iselin, New Jersey 08830 (609) 619-3990

OUTLOOK THERAPEUTICS, INC. 111 S. Wood Avenue Unit #100 Iselin, New Jersey 08830 (609) 619-3990 March 26, 2025 Via EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Life Sciences 100 F Street, N.E. Washington, D.C. 20549 Re: Outlook Therapeutics, Inc. Registration Statement on Form S-3 Filed March 20, 2025 File No. 333-285973 Ladies and Gentlemen: In accordanc

March 26, 2025 LETTER

LETTER

March 26, 2025 Lawrence Kenyon Chief Financial Officer and Interim Chief Executive Officer Outlook Therapeutics, Inc.

March 20, 2025 EX-FILING FEES

Filing fee table.

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Outlook Therapeutics, Inc.

March 20, 2025 S-3

As filed with the Securities and Exchange Commission on March 20, 2025

As filed with the Securities and Exchange Commission on March 20, 2025 Registration No.

March 14, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2025 Outlook Therapeuti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissi

March 14, 2025 EX-3.1

Certificate of Amendment of the Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the Company’s current report on Form 8-K filed with the SEC on March 14, 2025)

Exhibit 3.1 CERTIFICATE OF AMENDMENT OF THE RESTATED CERTIFICATE OF INCORPORATION OF OUTLOOK THERAPEUTICS, INC. Outlook Therapeutics, Inc., a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware, hereby certifies that: First: The name of the Company is Outlook Therapeutics, Inc. (the “Company”). Second: The date of filing of the original Ce

March 7, 2025 424B3

7,074,637 shares of Common Stock

Filed pursuant to 424(b)(3) Registration No. 333-285438 PROSPECTUS 7,074,637 shares of Common Stock This prospectus covers the offer and resale by the selling stockholders identified in this prospectus of up to an aggregate of 7,074,637 shares of our common stock issuable upon the exercise of outstanding Tranche A warrants to purchase shares of our common stock, or the Tranche A Warrants, held by

March 5, 2025 CORRESP

OUTLOOK THERAPEUTICS, INC. 111 S. Wood Avenue Unit #100 Iselin, New Jersey 08830 (609) 619-3990

CORRESP 1 filename1.htm OUTLOOK THERAPEUTICS, INC. 111 S. Wood Avenue Unit #100 Iselin, New Jersey 08830 (609) 619-3990 March 5, 2025 Via EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Life Sciences 100 F Street, N.E. Washington, D.C. 20549 Re: Outlook Therapeutics, Inc. Registration Statement on Form S-3 Filed February 28, 2025 File No. 333-285438 Ladies a

March 4, 2025 LETTER

LETTER

March 4, 2025 Lawrence A. Kenyon Chief Financial Officer and Interim Chief Executive Officer Outlook Therapeutics, Inc. 111 S. Wood Avenue, Unit #100 Iselin, New Jersey 08830 Re: Outlook Therapeutics, Inc. Registration Statement on Form S-3 Filed February 28, 2025 File No. 333-285438 Dear Lawrence A. Kenyon: This is to advise you that we have not reviewed and will not review your registration stat

February 28, 2025 S-3

As filed with the Securities and Exchange Commission on February 28, 2025

As filed with the Securities and Exchange Commission on February 28, 2025 Registration No.

February 28, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2025 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

February 28, 2025 EX-FILING FEES

Filing fee table.

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Outlook Therapeutics, Inc.

February 14, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

February 14, 2025 EX-99.1

Outlook Therapeutics® Reports Financial Results for First Quarter Fiscal Year 2025 and Provides Corporate Update

Exhibit 99.1 Outlook Therapeutics® Reports Financial Results for First Quarter Fiscal Year 2025 and Provides Corporate Update · ONS-5010 / LYTENAVA™ (bevacizumab-vikg) Biologics License Application (BLA) resubmission on track to meet target of Q1 CY2025 · LYTENAVA™ (bevacizumab gamma) on track for first commercial launches in Germany and the United Kingdom (UK) planned for Q2 CY2025 ISELIN, N.J.,

February 14, 2025 EX-99.1

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, the undersigned agree to the joint filing of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the Common Stock, $0.01 par value per share, of Outlook Therapeutics, Inc. and further agree to the filing of this agreement as an exhibit th

February 14, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 14, 2025 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 14, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

February 10, 2025 ARS

ARS

CORPORATE 2024 ANNUAL REPORT NASDAQ: OTLK outlooktherapeutics.comUNITEDSTATES SECURITIESANDEXCHANGECOMMISSION WASHINGTON,D.C.20549 FORM10-K ☒ ANNUALREPORTPURSUANTTOSECTION13OR15(d)OFTHESECURITIESEXCHANGEACTOF1934 ForthefiscalyearendedSeptember30,2024 OR ☐ TRANSITIONREPORTPURSUANTTOSECTION13OR15(d)OFTHESECURITIESEXCHANGEACTOF1934 Forthetransitionperiodfrom to CommissionFileNumber:001-37759 OUTLOOKT

February 10, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (

January 31, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (

January 31, 2025 EX-10.1

Securities Purchase Agreement, dated as of January 31, 2025, by and between the Company and Avondale Capital, LLC. *

Exhibit 10.1 Securities Purchase Agreement This Securities Purchase Agreement (this “Agreement”), dated as of January 31, 2025 (the “Effective Date”), is entered into by and between Outlook Therapeutics, Inc., a Delaware corporation (“Company”), and Avondale Capital, LLC, a Utah limited liability company, its successors and/or assigns (“Investor”). A.            Company and Investor are executing

January 31, 2025 EX-10.2

Form of Note.

Exhibit 10.2 CONVERTIBLE PROMISSORY NOTE January 31, 2025 U.S. $33,100,000.00 FOR VALUE RECEIVED, Outlook Therapeutics, Inc., a Delaware corporation (“Borrower”), promises to pay to Avondale Capital, LLC, a Utah limited liability company, or its successors or assigns (“Lender”), $33,100,000.00 and any interest, fees, charges, and late fees accrued hereunder on July 1, 2026 (the “Maturity Date”) in

January 31, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 30, 2025 Outlook Therapeu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 30, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commis

January 23, 2025 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A (Amendment No. 1) ☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED SEPTEMBER 30, 2024 ☐TRANSITION REPOR

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A (Amendment No. 1) ☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED SEPTEMBER 30, 2024 or ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to COMMISSION FILE NUMBER

January 22, 2025 EX-99.1

JOINT FILING AGREEMENT

Exhibit 1 JOINT FILING AGREEMENT The undersigned hereby agree that this Statement on Schedule 13D, dated January 17, 2025 (the “Schedule 13D”), with respect to the common stock, par value $0.

January 16, 2025 EX-10.2

Form of Syntone Inducement Letter.

Exhibit 10.2 OUTLOOK THERAPEUTICS, inc. January 16, 2025 To: Holder of Warrants to Purchase Common Stock Re: Inducement Offer to Exercise Warrants to Purchase Common Stock Dear Holder: Outlook Therapeutics, Inc. (the “Company”) is pleased to offer to you (“Holder”, “you” or similar terminology) (i) the opportunity to receive new warrants to purchase shares of the Company’s common stock, par value

January 16, 2025 EX-4.1

Form of Tranche A Inducement Warrant.

Exhibit 4.1 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER APPLICABLE STATE SECURITIES OR BLUE SKY LAWS. THE SECURITIES ARE SUBJECT TO

January 16, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 16, 2025 Outlook Therapeu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 16, 2025 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commis

January 16, 2025 EX-10.1

Form of Inducement Letter (incorporated by reference to Exhibit 10.1 to Registrant’s current report on Form 8-K filed with the SEC on January 16, 2025).

Exhibit 10.1 OUTLOOK THERAPEUTICS, inc. January 16, 2025 To: Holder of Warrants to Purchase Common Stock Re: Inducement Offer to Exercise Warrants to Purchase Common Stock Dear Holder: Outlook Therapeutics, Inc. (the “Company”) is pleased to offer to you (“Holder”, “you” or similar terminology) (i) the opportunity to receive new warrants to purchase shares of the Company’s common stock, par value

January 16, 2025 EX-4.4

Form of Syntone Tranche B Inducement Warrant.

Exhibit 4.4 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER APPLICABLE STATE SECURITIES OR BLUE SKY LAWS. THE SECURITIES ARE SUBJECT TO

January 16, 2025 EX-4.2

Form of Tranche B Inducement Warrant.

Exhibit 4.2 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER APPLICABLE STATE SECURITIES OR BLUE SKY LAWS. THE SECURITIES ARE SUBJECT TO

January 16, 2025 EX-4.3

Form of Syntone Tranche A Inducement Warrant.

Exhibit 4.3 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER APPLICABLE STATE SECURITIES OR BLUE SKY LAWS. THE SECURITIES ARE SUBJECT TO

December 27, 2024 EX-99.1

Outlook Therapeutics® Reports Financial Results for Fiscal Year 2024 and Provides Corporate Update

Exhibit 99.1 Outlook Therapeutics® Reports Financial Results for Fiscal Year 2024 and Provides Corporate Update · LYTENAVA™ is the first and only approved ophthalmic formulation of bevacizumab for the treatment of wet AMD in the European Union (EU) and United Kingdom (UK); First commercial launch anticipated in H1 CY25 · Received NICE recommendation of LYTENAVA™ (bevacizumab gamma) for the treatme

December 27, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 27, 2024 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 27, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

December 27, 2024 EX-4.1

Exhibit 4.1 of the 2024 Form 10-K

Exhibit 4.1 Description of Registrant’s Securities The following is a description of the capital stock of Outlook Therapeutics, Inc. (the “Company,” “we,” “our,” or “us”). The following summary description is based on the provisions of our Amended and Restated Certificate of Incorporation, as amended (the “Certificate of Incorporation”), our Amended and Restated Bylaws, (the “Bylaws”), and the app

December 27, 2024 EX-10.11

Outlook Therapeutics, Inc. Non-Employee Director Compensation Policy, as amended and restated, effective as of October 1, 2024

Exhibit 10.11 OUTLOOK THERAPEUTICS, INC. NON-EMPLOYEE DIRECTOR COMPENSATION POLICY AS AMENDED AND RESTATED EFFECTIVE OCTOBER 1, 2024 Each member of the Board of Directors (the “Board”) who is not also serving as an employee of Outlook Therapeutics, Inc. (the “Company”) or any of its subsidiaries (each such member, an “Eligible Director”) will receive the compensation described in this Non-Employee

December 27, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37759 OUTLOO

December 27, 2024 EX-19.1

Insider Trading Policy, as amended and restated.

Exhibit 19.1 OUTLOOK THERAPEUTICS, INC. AMENDED AND RESTATED INSIDER TRADING POLICY Initially Adopted by the Board - January 28, 2016 As Amended and Restated by the Board – June 21, 2023 As Amended and Restated by the Board – December 10, 2024 I. INTRODUCTION This policy determines acceptable transactions in the securities of Outlook Therapeutics, Inc. (the “Company” or “Outlook”) by our employees

December 27, 2024 EX-21.1

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant d Name of Subsidiary State or Other Jurisdiction Outlook Therapeutics Pty Ltd Australia Outlook Therapeutics Limited (dormant subsidiary) England and Wales Outlook Therapeutics Limited Republic of Ireland This list does not include joint ventures in which the Company has an ownership interest.

December 16, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 10, 2024 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 10, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

December 4, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 3, 2024 Outlook Therapeu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 3, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commis

November 27, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 27, 2024 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 27, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

November 27, 2024 EX-99.1

Outlook Therapeutics® Announces Preliminary Topline Results of NORSE EIGHT Clinical Trial

Exhibit 99.1 Outlook Therapeutics® Announces Preliminary Topline Results of NORSE EIGHT Clinical Trial · Final efficacy data expected in January 2025 · Anticipate resubmission of BLA in calendar Q1 2025 ISELIN, N.J., November 27, 2024 — Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company that achieved regulatory approval in the European Union and the United Kingdom earlier this

November 14, 2024 SC 13G/A

OTLK / Outlook Therapeutics, Inc. / GREAT POINT PARTNERS LLC Passive Investment

SC 13G/A 1 greatpoint-otlk093024a1.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Outlook Therapeutics, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 69012T305 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box t

November 7, 2024 SC 13G/A

OTLK / Outlook Therapeutics, Inc. / Velan Capital Investment Management LP - AMENDMENT NO. 1 TO THE SCHEDULE 13G Passive Investment

SC 13G/A 1 sc13ga11292703311072024.htm AMENDMENT NO. 1 TO THE SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (Amendment No. 1)1 Outlook Therapeutics, Inc. (Name of Issuer) Common Stock, par v

August 14, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Outlook Therapeutics, Inc.

August 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

August 14, 2024 EX-99.1

  Outlook Therapeutics® Reports Financial Results for Third Quarter Fiscal Year 2024 and Provides Corporate Update

EX-99.1 2 tm2421547d1ex99-1.htm EXHIBIT 99.1 Exhibit 99.1   Outlook Therapeutics® Reports Financial Results for Third Quarter Fiscal Year 2024 and Provides Corporate Update   · Received European Union (EU) and United Kingdom (UK) Marketing Authorization for LYTENAVA™ (bevacizumab gamma) for the treatment of wet AMD · NORSE EIGHT current enrollment pace supports topline readout target of Q4 CY2024

August 14, 2024 EX-10.1

2024 Equity Incentive Plan.

Exhibit 10.1 OUTLOOK THERAPEUTICS, INC. 2024 EQUITY INCENTIVE PLAN 1.GENERAL. (a)Eligible Award Recipients. Subject to Section 4, Employees, Directors and Consultants are eligible to receive Awards. (b)Available Awards. The Plan provides for the grant of the following types of Awards: (i) Incentive Stock Options; (ii) Nonstatutory Stock Options; (iii) Stock Appreciation Rights; (iv) Restricted Sto

August 14, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 14, 2024 Outlook Therapeut

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 14, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commiss

August 14, 2024 EX-10.2

Form of Stock Option Grant Notice and Stock Option Agreement under the 2024 Equity Incentive Plan.

Exhibit 10.2 Outlook Therapeutics, Inc. 2024 Equity Incentive Plan Stock Option Grant Notice Outlook Therapeutics, Inc. (the “Company”), pursuant to its 2024 Equity Incentive Plan (as amended from time to time, the “Plan”), hereby grants to Optionholder an option to purchase the number of shares of the Company’s Common Stock set forth below. This option is subject to all of the terms and condition

August 14, 2024 S-8

As filed with the Securities and Exchange Commission on August 14, 2024

As filed with the Securities and Exchange Commission on August 14, 2024 Registration No.

July 8, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 8, 2024 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 8, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

June 26, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (

June 14, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (

May 28, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 28, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 15, 2024 EX-3.2

Certificate of Elimination of the Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series A-1 Convertible Preferred Stock.

Exhibit 3.2 CERTIFICATE OF ELIMINATION OF THE SERIES A CONVERTIBLE PREFERRED STOCK, SERIES B CONVERTIBLE PREFERRED STOCK AND SERIES A-1 CONVERTIBLE PREFERRED STOCK OF OUTLOOK THERAPEUTICS, INC. Outlook Therapeutics, Inc., a Delaware corporation (the “Company”), does hereby certify as follows: FIRST: Pursuant to Section 151(g) of the Delaware General Corporation Law (the “DGCL”) and the authority c

May 15, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

May 15, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2024 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 15, 2024 EX-3.1

Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2024).

Exhibit 3.1 RESTATED CERTIFICATE OF INCORPORATION OF OUTLOOK THERAPEUTICS, INC. (Originally incorporated on October 22, 2015 under the name Oncobiologics, Inc.) I. The name of this corporation is Outlook Therapeutics, Inc. (the “Company”). II. The address of the registered office of this Company in the State of Delaware is 800 North State Street, Suite 304, City of Dover, County of Kent, 19901, an

May 15, 2024 EX-99.1

Outlook Therapeutics® Reports Financial Results for Second Quarter Fiscal Year 2024 and Provides Corporate Update

Exhibit 99.1 Outlook Therapeutics® Reports Financial Results for Second Quarter Fiscal Year 2024 and Provides Corporate Update · Positive opinion received from Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) for ONS-5010/LYTENAVA™ (bevacizumab gamma) · United Kingdom (UK) Marketing Authorization Application (MAA) submitted · NORSE EIGHT fully underway i

May 13, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2024 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 13, 2024 EX-99.1

Outlook Therapeutics® Announces UK Submission of Marketing Authorization Application (MAA) for ONS-5010 as a Treatment for Wet AMD

Exhibit 99.1 Outlook Therapeutics® Announces UK Submission of Marketing Authorization Application (MAA) for ONS-5010 as a Treatment for Wet AMD · UK submission for national MAA review follows recently received positive opinion from Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) concerning the authorization of ONS-5010/LYTENAVA™ (bevacizumab gamma) ISEL

May 6, 2024 424B3

2,776,867 shares of Common Stock

Filed pursuant to 424(b)(3) Registration No. 333-278959 PROSPECTUS 2,776,867 shares of Common Stock This prospectus covers the offer and resale by Syntone Ventures LLC, or the selling stockholder, of up to an aggregate of 2,776,867 shares of our common stock, which consists of (i) 800,000 shares of our common stock held by the selling stockholder that were issued by us at the closing of a private

May 2, 2024 CORRESP

OUTLOOK THERAPEUTICS, INC. 111 S. Wood Avenue Unit #100 Iselin, New Jersey 08830 (609) 619-3990

OUTLOOK THERAPEUTICS, INC. 111 S. Wood Avenue Unit #100 Iselin, New Jersey 08830 (609) 619-3990 May 2, 2024 Via EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Life Sciences 100 F Street, N.E. Washington, D.C. 20549 Re: Outlook Therapeutics, Inc. Registration Statement on Form S-3 Filed April 26, 2024 File No. 333-278959 Ladies and Gentlemen: In accordance w

May 1, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2024 Outlook Therapeutics,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 1, 2024 LETTER

LETTER

United States securities and exchange commission logo May 1, 2024 Lawrence A. Kenyon Chief Financial Officer Outlook Therapeutics, Inc. 485 Route 1 South Building F, Suite 320 Iselin, New Jersey 08830 Re: Outlook Therapeutics, Inc. Registration Statement on Form S-3 Filed April 26, 2024 File No. 333-278959 Dear Lawrence A. Kenyon: This is to advise you that we have not reviewed and will not review

April 26, 2024 S-3

As filed with the Securities and Exchange Commission on April 26, 2024

As filed with the Securities and Exchange Commission on April 26, 2024 Registration No.

April 26, 2024 EX-FILING FEES

Filing fee table.

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Outlook Therapeutics, Inc.

April 17, 2024 SC 13D/A

OTLK / Outlook Therapeutics, Inc. / Syntone Ventures LLC - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* Outlook Therapeutics, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 69012T 305 (CUSIP Number) Syntone Ventures LLC 1517 Champlain Crest Way Cary, NC 27513 Attn: President Telephone: (781) 308-0823 (Name, Add

April 17, 2024 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 tm2412152d1ex1.htm EXHIBIT 1 Exhibit 1 JOINT FILING AGREEMENT The undersigned hereby agree that this Amendment No. 2 to the Statement on Schedule 13D, dated April 17, 2024 (the “Schedule 13D/A”), with respect to the common stock, par value $0.01 per share, of Outlook Therapeutics, Inc. is filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) und

April 15, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 15, 2024 Outlook Therapeuti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 15, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissi

April 12, 2024 EX-10.1

Amendment, dated April 12, 2024, to Sales Agreement, dated May 16, 2023, by and between the Company and BTIG.

Exhibit 10.1 April 12, 2024 Outlook Therapeutics, Inc. 485 Route 1 South Building F, Suite 320 Iselin, New Jersey 08830 Attention: Lawrence A. Kenyon, Chief Financial Officer Dear Mr. Kenyon: Reference is made to the At The Market Sales Agreement, dated as of May 16, 2023 (the “Sales Agreement”), between Outlook Therapeutics, Inc. (the “Company”) and BTIG, LLC (“BTIG”). This letter (the “Amendment

April 12, 2024 424B5

Up to $93,731,868 Common Stock

Filed Pursuant to Rule 424(b)(5) Registration No. 333-278340 PROSPECTUS SUPPLEMENT (To Prospectus dated April 12, 2024) Up to $93,731,868 Common Stock We have entered into an at-the-market-sales agreement, or the Sales Agreement, with BTIG, LLC, or BTIG, acting in its capacity as the sales agent, relating to the offer and sale from time to time of up to $100,000,000 of our common stock, par value

April 12, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 12, 2024 Outlook Therapeuti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 12, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissi

April 8, 2024 SC 13G

OTLK / Outlook Therapeutics, Inc. / GREAT POINT PARTNERS LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

April 3, 2024 LETTER

LETTER

United States securities and exchange commission logo April 3, 2024 Lawrence Kenyon Chief Financial Officer Outlook Therapeutics, Inc.

April 3, 2024 CORRESP

OUTLOOK THERAPEUTICS, INC. 485 Route 1 South Building F, Suite 320 Iselin, New Jersey 08830 (609) 619-3990

OUTLOOK THERAPEUTICS, INC. 485 Route 1 South Building F, Suite 320 Iselin, New Jersey 08830 (609) 619-3990 April 3, 2024 Via EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Life Sciences 100 F Street, N.E. Washington, D.C. 20549 Re: Outlook Therapeutics, Inc. Registration Statement on Form S-3 Filed March 28, 2024 File No. 333-278340 Ladies and Gentlemen: In

April 2, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 1, 2024 Outlook Therapeutic

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 1, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissio

April 1, 2024 424B3

21,428,556 shares of Common Stock

Filed pursuant to 424(b)(3) Registration No. 333-278209 PROSPECTUS 21,428,556 shares of Common Stock This prospectus covers the offer and resale by the selling stockholders identified in this prospectus of up to an aggregate of 21,428,556 shares of our common stock, which consists of (i) 8,571,423 shares of our common stock held by the selling stockholders and (ii) 12,857,133 shares of our common

March 28, 2024 SC 13G

OTLK / Outlook Therapeutics, Inc. / Velan Capital Investment Management LP - THE SCHEDULE 13G Passive Investment

SC 13G 1 sc13g1292703303282024.htm THE SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (Amendment No. )1 Outlook Therapeutics, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Ti

March 28, 2024 S-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-3 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter)

As filed with the Securities and Exchange Commission on March 28, 2024 Registration No.

March 28, 2024 EX-4.5

Form of Preferred Stock Warrant Agreement and Warrant Certificate.

Exhibit 4.5 OUTLOOK THERAPEUTICS, INC. AND , AS WARRANT AGENT FORM OF PREFERRED STOCK WARRANT AGREEMENT DATED AS OF OUTLOOK THERAPEUTICS, INC. FORM OF PREFERRED STOCK WARRANT AGREEMENT THIS PREFERRED STOCK WARRANT AGREEMENT (this “Agreement”), dated as of [●], between OUTLOOK THERAPEUTICS, INC., a Delaware corporation (the “Company”), and [●], a [corporation] [national banking association] organiz

March 28, 2024 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 ex991.htm EXHIBIT 99.1 Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, the undersigned agree to the joint filing of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the Common Stock, $0.01 par value per share, of Outlook Therapeutics, Inc. and further agree to the filing o

March 28, 2024 S-8

As filed with the Securities and Exchange Commission on March 28, 2024

As filed with the Securities and Exchange Commission on March 28, 2024 Registration No.

March 28, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Outlook Therapeutics, Inc.

March 28, 2024 SC 13G

OTLK / Outlook Therapeutics, Inc. / TANG CAPITAL PARTNERS LP Passive Investment

Securities and Exchange Commission Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

March 28, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Outlook Therapeutics, Inc.

March 28, 2024 EX-4.4

Form of Common Stock Warrant Agreement and Warrant Certificate

Exhibit 4.4 OUTLOOK THERAPEUTICS, INC. AND , AS WARRANT AGENT FORM OF COMMON STOCK WARRANT AGREEMENT DATED AS OF OUTLOOK THERAPEUTICS, INC. FORM OF COMMON STOCK WARRANT AGREEMENT THIS COMMON STOCK WARRANT AGREEMENT (this “Agreement”), dated as of [●], between OUTLOOK THERAPEUTICS, INC., a Delaware corporation (the “Company”), and [●], a [corporation] [national banking association] organized and ex

March 28, 2024 EX-4.2

Form of Indenture.

Exhibit 4.2 OUTLOOK THERAPEUTICS, INC., Issuer AND [TRUSTEE], Trustee INDENTURE Dated as of [●], 2024 Debt Securities 1 Table of Contents Page Article 1 DEFINITIONS 1 Section 1.01 Definitions of Terms 1 Article 2 ISSUE, DESCRIPTION, TERMS, EXECUTION, REGISTRATION AND EXCHANGE OF SECURITIES 4 Section 2.01 Designation and Terms of Securities 4 Section 2.02 Form of Securities and Trustee’s Certificat

March 28, 2024 EX-99.1

Joint Filing Agreement

Exhibit 99.1 Joint Filing Agreement The undersigned hereby agree that the Statement on Schedule 13G dated March 28, 2024 with respect to the Common Stock, par value $0.01 per share, of Outlook Therapeutics, Inc., and any amendments thereto executed by each and any of the undersigned shall be filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(

March 28, 2024 LETTER

LETTER

United States securities and exchange commission logo March 28, 2024 Lawrence Kenyon Chief Financial Officer Outlook Therapeutics, Inc.

March 28, 2024 EX-4.6

Form of Debt Securities Warrant Agreement and Warrant Certificate.

Exhibit 4.6 OUTLOOK THERAPEUTICS, INC. AND , AS WARRANT AGENT FORM OF DEBT SECURITIES WARRANT AGREEMENT DATED AS OF OUTLOOK THERAPEUTICS, INC. FORM OF DEBT SECURITIES WARRANT AGREEMENT THIS DEBT SECURITIES WARRANT AGREEMENT (this “Agreement”), dated as of [●], between OUTLOOK THERAPEUTICS, INC., a Delaware corporation (the “Company”), and [●], a [corporation] [national banking association] organiz

March 28, 2024 CORRESP

OUTLOOK THERAPEUTICS, INC. 485 Route 1 South Building F, Suite 320 Iselin, New Jersey 08830 (609) 619-3990

OUTLOOK THERAPEUTICS, INC. 485 Route 1 South Building F, Suite 320 Iselin, New Jersey 08830 (609) 619-3990 March 28, 2024 Via EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Life Sciences 100 F Street, N.E. Washington, D.C. 20549 Re: Outlook Therapeutics, Inc. Registration Statement on Form S-3 Filed March 25, 2024 File No. 333-278209 Ladies and Gentlemen: I

March 26, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 20, 2024 Outlook Therapeuti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 20, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissi

March 25, 2024 S-3

As filed with the Securities and Exchange Commission on March 25, 2024

As filed with the Securities and Exchange Commission on March 25, 2024 Registration No.

March 25, 2024 EX-FILING FEES

Filing fee table.

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Outlook Therapeutics, Inc.

March 20, 2024 SC 13D/A

OTLK / Outlook Therapeutics, Inc. / GMS Ventures & Investments - UNDER THE SECURITIES EXCHANGE ACT OF 1934 Activist Investment

SC 13D/A 1 ss3153634sc13da.htm UNDER THE SECURITIES EXCHANGE ACT OF 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* Outlook Therapeutics, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 69012T 305 (CUSIP Number) GMS Ventures and Investments c/o Inter

March 20, 2024 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 ss3153634ex9901.htm JOINT FILING AGREEMENT EXHIBIT 1 JOINT FILING AGREEMENT The undersigned hereby agree that this Statement on Schedule 13D, dated March 20, 2024 (the “Schedule 13D”), with respect to the common stock, par value $0.01 per share, of Outlook Therapeutics, Inc. is filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Secu

March 18, 2024 EX-3.1

Certificate of Amendment to Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the Registrant’s current report on Form 8-K filed with the SEC on March 18, 2024).

Exhibit 3.1 CERTIFICATE OF AMENDMENT OF THE AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF OUTLOOK THERAPEUTICS, INC. Outlook Therapeutics, Inc., a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware, hereby certifies that: First: The name of the Company is Outlook Therapeutics, Inc. (the “Company”). Second: The date of filing of the

March 18, 2024 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissi

March 7, 2024 EX-3.1

Certificate of Amendment to Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the Registrant’s current report on Form 8-K filed with the SEC on March 7, 2024).

Exhibit 3.1 CERTIFICATE OF AMENDMENT OF THE AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF OUTLOOK THERAPEUTICS, INC. Outlook Therapeutics, Inc., a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware, hereby certifies that: First: The name of the Company is Outlook Therapeutics, Inc. (the “Company”). Second: The date of the filing th

March 7, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 7, 2024 Outlook Therapeutic

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 7, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissio

February 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

February 14, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 14, 2024 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 14, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

February 14, 2024 EX-99.1

Outlook Therapeutics® Reports Financial Results for First Quarter Fiscal Year 2024 and Provides Corporate Update

Exhibit 99.1 Outlook Therapeutics® Reports Financial Results for First Quarter Fiscal Year 2024 and Provides Corporate Update · NORSE EIGHT underway with first subject dosed and additional clinical sites beginning enrollment · Continue to expect planned resubmission of the ONS-5010 Biologics License Application (BLA) by the end of CY2024 · Anticipate review decision from European regulators in the

February 8, 2024 ARS

ARS

CORPORATE 2024 ANNUAL REPORT NASDAQ: OTLK outlooktherapeutics.com Outlook Therapeutics is a biopharmaceutical company working to achieve FDA approval for the launch of ONS-5010/ LYTENAVA™ (bevacizumab-vikg) as the first FDA-approved ophthalmic formulation of bevacizumab for use in retinal indications, including wet AMD, DME and BRVO. Envisioning a Better Tomorrow for Ophthalmic TherapiesFebruary20

February 8, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (

January 31, 2024 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 tm244744d1ex-1.htm EXHIBIT 1 EXHIBIT 1 JOINT FILING AGREEMENT The undersigned hereby agree that this Statement on Schedule 13D, dated January 31, 2024 (the “Schedule 13D”), with respect to the common stock, par value $0.01 per share, of Outlook Therapeutics, Inc. is filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities and E

January 31, 2024 SC 13D/A

OTLK / Outlook Therapeutics, Inc. / BioLexis Pte Ltd. - SC 13D/A Activist Investment

SC 13D/A 1 tm244744d1sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 19)* Outlook Therapeutics, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 69012T 206 (CUSIP Number) Tenshi Healthcare Pte. Ltd. 36 Robinson Road #13-01 City House Singapor

January 29, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (

January 24, 2024 EX-4.2

Form of Syntone Common Stock Purchase Warrant (incorporated by reference to Exhibit 4.2 to the Company’s current report on Form 8-K filed with the SEC on January 24, 2024)

Exhibit 4.2 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER APPLICABLE STATE SECURITIES OR BLUE SKY LAWS. THE SECURITIES ARE SUBJECT TO

January 24, 2024 EX-10.3

Form of Registration Rights Agreement.

Exhibit 10.3   REGISTRATION RIGHTS AGREEMENT   This Registration Rights Agreement (this “Agreement”) is made and entered into as of January 22, 2024, between Outlook Therapeutics, Inc., a Delaware corporation (the “Company”), and each of the several investors signatory hereto (each, an “Investor” and, collectively, the “Investors”).   This Agreement is made pursuant to the Securities Purchase Agre

January 24, 2024 EX-99.1

Outlook Therapeutics® Receives FDA Agreement Under Special Protocol Assessment (SPA) for 90 Day Non-Inferiority Study, NORSE EIGHT, and Announces Private Placement of Up to $172 Million to Advance ONS-5010

Exhibit 99.1 Outlook Therapeutics® Receives FDA Agreement Under Special Protocol Assessment (SPA) for 90 Day Non-Inferiority Study, NORSE EIGHT, and Announces Private Placement of Up to $172 Million to Advance ONS-5010 · Obtained clarity from U.S. Food and Drug Administration (FDA) on next steps to advance ONS-5010 · NORSE EIGHT expected to commence in the first quarter of CY2024, enabling potenti

January 24, 2024 EX-10.4

Securities Purchase Agreement, dated January 22, 2024, between Outlook Therapeutics, Inc. and Syntone Ventures LLC (incorporated by reference to Exhibit 10.4 to the registrant’s current report on Form 8-K filed with the SEC on January 24, 2024)

Exhibit 10.4   SECURITIES PURCHASE AGREEMENT   This Securities Purchase Agreement (this “Agreement”) is dated as of January 22, 2024, between Outlook Therapeutics, Inc., a Delaware corporation (the “Company”), and Syntone Ventures, LLC (including its successors and assigns, the “Purchaser”).   WHEREAS, subject to the terms and conditions set forth in this Agreement and pursuant to an exemption fro

January 24, 2024 EX-10.2

Form of Support Agreement

Exhibit 10.2   OUTLOOK THERAPEUTICS, INC.   SUPPORT AGREEMENT   THIS SUPPORT AGREEMENT (this “Agreement”), dated as of January 22, 2024 is made by and among Outlook Therapeutics, Inc., a Delaware corporation (the “Company”), and the stockholder identified on the signature page hereto (“Stockholder”), a holder of shares of common stock, $.01 par value (the “Shares”) of the Company.   WHEREAS, the C

January 24, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 22, 2024 Outlook Therapeu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 22, 2024 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commis

January 24, 2024 EX-4.1

Form of Common Stock Purchase Warrant (incorporated by reference to Exhibit 4.1 to the Company’s current report on Form 8-K filed with the SEC on January 24, 2024)

Exhibit 4.1   NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER APPLICABLE STATE SECURITIES OR BLUE SKY LAWS. THE SECURITIES ARE SUBJECT

January 24, 2024 EX-10.6

Third Amendment, dated January 22, 2024, to the Convertible Promissory Note, dated December 22, 2022, by and between the Company and Streeterville Capital, LLC (incorporated by reference to Exhibit 10.6 to the Company’s current report on Form 8-K filed with the SEC on January 24, 2024)

Exhibit 10.6   THIRD AMENDMENT TO CONVERTIBLE PROMISSORY NOTE   This Third Amendment to Convertible Promissory Note (this “Amendment”) is entered into as of January 22, 2024, by and between Streeterville Capital, LLC, a Utah limited liability company (“Lender”), and Outlook Therapeutics, Inc., a Delaware corporation (“Borrower”). Capitalized terms used in this Amendment without definition shall ha

January 24, 2024 EX-10.5

Registration Rights Agreement, dated January 22, 2024, between the Company and Syntone (incorporated by reference to Exhibit 10.5 to the Company’s current report on Form 8-K filed with the SEC on January 24, 2024)

Exhibit 10.5   REGISTRATION RIGHTS AGREEMENT   This Registration Rights Agreement (this “Agreement”) is made and entered into as of January 22, 2024, between Outlook Therapeutics, Inc., a Delaware corporation (the “Company”), and Syntone Ventures, LLC (the “Investor”).   This Agreement is made pursuant to the Securities Purchase Agreement, dated on or about the date hereof, between the Company and

January 24, 2024 EX-10.1

Form of Securities Purchase Agreement

Exhibit 10.1   SECURITIES PURCHASE AGREEMENT   This Securities Purchase Agreement (this “Agreement”) is dated as of January 22, 2024, between Outlook Therapeutics, Inc., a Delaware corporation (the “Company”), and the several purchasers identified on the signature pages hereto (each, including its respective successors and assigns, a “Purchaser”).   WHEREAS, subject to the terms and conditions set

January 24, 2024 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A (Amendment No. 1) ☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED SEPTEMBER 30, 2023 ☐TRANSITION REPOR

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A (Amendment No. 1) ☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED SEPTEMBER 30, 2023 or ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to COMMISSION FILE NUMBER

December 22, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 22, 2023 Outlook Therape

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 22, 2023 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

December 22, 2023 EX-21.1

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant d Name of Subsidiary State or Other Jurisdiction Outlook Therapeutics Pty Ltd Australia Outlook Therapeutics Limited (dormant subsidiary) England and Wales Outlook Therapeutics Limited Republic of Ireland This list does not include joint ventures in which the Company has an ownership interest.

December 22, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37759 OUTLOO

December 22, 2023 EX-99.1

Outlook Therapeutics® Reports Financial Results for Fiscal Year 2023 and Reiterates ONS-5010 Clinical and Regulatory Path Forward in the U.S. and EU

Exhibit 99.1 Outlook Therapeutics® Reports Financial Results for Fiscal Year 2023 and Reiterates ONS-5010 Clinical and Regulatory Path Forward in the U.S. and EU · Commencement of ONS-5010 NORSE EIGHT clinical trial targeted for first calendar quarter of 2024 · Company reaffirms potential for European approval for ONS-5010 with Marketing Authorization Application (MAA) decision date anticipated in

December 22, 2023 EX-10.30

Amendment, dated December 21, 2023, to the Convertible Promissory Note, dated December 22, 2022, by and between the Company and Streeterville Capital, LLC.

Exhibit 10.30 AMENDMENT TO CONVERTIBLE PROMISSORY NOTE This Amendment to Convertible Promissory Note (this “Amendment”) is entered into as of December 21, 2023, by and between Streeterville Capital, LLC, a Utah limited liability company (“Lender”), and Outlook Therapeutics, Inc., a Delaware corporation (“Borrower”). Capitalized terms used in this Amendment without definition shall have the meaning

December 22, 2023 EX-10.26

Outlook Therapeutics, Inc. Non-Employee Director Compensation Policy as Amended and Restated, Effective October 1, 2023.

Exhibit 10.26 OUTLOOK THERAPEUTICS, INC. NON-EMPLOYEE DIRECTOR COMPENSATION POLICY AS AMENDED AND RESTATED EFFECTIVE OCTOBER 1, 2023 Each member of the Board of Directors (the “Board”) who is not also serving as an employee of Outlook Therapeutics, Inc. (the “Company”) or any of its subsidiaries (each such member, an “Eligible Director”) will receive the compensation described in this Non-Employee

December 22, 2023 EX-97

Incentive Compensation Recoupment Policy.

Exhibit 97 OUTLOOK THERAPEUTICS, INC. INCENTIVE COMPENSATION RECOUPMENT POLICY 1.INTRODUCTION The Board of Directors (the “Board”) of Outlook Therapeutics, Inc., a Delaware corporation (the “Company”), has determined that it is in the best interests of the Company and its stockholders to adopt this Incentive Compensation Recoupment Policy (this “Policy”) providing for the Company’s recoupment of R

December 22, 2023 EX-4.1

Exhibit 4.1 of the 2023 Form 10-K

Exhibit 4.1 Description of Registrant’s Securities The following is a description of the capital stock of Outlook Therapeutics, Inc. (the “Company,” “we,” “our,” or “us”). The following summary description is based on the provisions of our Amended and Restated Certificate of Incorporation, as amended (the “Certificate of Incorporation”), our Amended and Restated Bylaws, (the “Bylaws”), and the app

December 6, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 30, 2023 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

November 29, 2023 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 tm2331705d1ex1.htm EXHIBIT 1 EXHIBIT 1 JOINT FILING AGREEMENT The undersigned hereby agree that this Statement on Schedule 13D, dated November 29, 2023 (the “Schedule 13D”), with respect to the common stock, par value $0.01 per share, of Outlook Therapeutics, Inc. is filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities and

November 29, 2023 SC 13D/A

OTLK / Outlook Therapeutics Inc / BioLexis Pte Ltd. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 18)* Outlook Therapeutics, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 69012T 206 (CUSIP Number) Tenshi Healthcare Pte. Ltd. 36 Robinson Road #13-01 City House Singapore, 068877 Attn: Executive Director Teleph

November 2, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2023 Outlook Therapeu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2023 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commis

November 2, 2023 EX-99.1

Outlook Therapeutics® Provides Update on Type A Meetings with FDA

Exhibit 99.1 Outlook Therapeutics® Provides Update on Type A Meetings with FDA ISELIN, N.J., November 2, 2023 — (GLOBE NEWSWIRE) Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company working to achieve FDA approval for the first ophthalmic formulation of bevacizumab for the treatment of retinal diseases, today announced that it has completed the requested Type A Meetings with the

October 20, 2023 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 16, 2023 Outlook Therapeutics, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 001-37759 38-3982704 (State or Other Jurisdiction of Incorporation) (Commis

August 30, 2023 EX-99.1

Outlook Therapeutics® Provides Regulatory Update on FDA Review of ONS-5010 / LYTENAVA™ (bevacizumab-vikg) for the Treatment of Wet AMD FDA issues Complete Response Letter (CRL) for ONS-5010 BLA based on CMC and need for further confirmatory clinical

Exhibit 99.1 Outlook Therapeutics® Provides Regulatory Update on FDA Review of ONS-5010 / LYTENAVA™ (bevacizumab-vikg) for the Treatment of Wet AMD FDA issues Complete Response Letter (CRL) for ONS-5010 BLA based on CMC and need for further confirmatory clinical evidence Outlook Therapeutics working with FDA to address the Agency’s issues Company to host conference call and webcast, today, August

August 30, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 30, 2023 Outlook Therapeut

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 30, 2023 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commiss

August 25, 2023 424B5

515,755 Shares of Common Stock

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration No. 333-273979 515,755 Shares of Common Stock This prospectus relates to the offer and resale, from time to time, by the selling stockholder named under the heading “Selling Stockholder” in this prospectus, or its assigns (the “Selling Stockholder”) of up to 515,755 shares (the “Shares”) of our common stock, par value $0.01 per shar

August 23, 2023 CORRESP

OUTLOOK THERAPEUTICS, INC. 485 Route 1 South Building F, Suite 320 Iselin, New Jersey 08830 (609) 619-3990

CORRESP 1 filename1.htm OUTLOOK THERAPEUTICS, INC. 485 Route 1 South Building F, Suite 320 Iselin, New Jersey 08830 (609) 619-3990 August 23, 2023 Via EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Life Sciences 100 F Street, N.E. Washington, D.C. 20549 Re: Outlook Therapeutics, Inc. Registration Statement on Form S-3 Filed August 14, 2023 File No. 333-2739

August 22, 2023 LETTER

LETTER

United States securities and exchange commission logo August 22, 2023 Lawrence Kenyon Chief Financial Officer Outlook Therapeutics, Inc.

August 14, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

August 14, 2023 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables S-3 (Form Type) Outlook Therapeutics, Inc.

August 14, 2023 EX-99.1

Outlook Therapeutics® Reports Financial Results for Third Quarter Fiscal Year 2023 and Reiterates Key Anticipated Near-Term Milestones

Exhibit 99.1 Outlook Therapeutics® Reports Financial Results for Third Quarter Fiscal Year 2023 and Reiterates Key Anticipated Near-Term Milestones · Prescription Drug User Fee Act (PDUFA) goal date of August 29, 2023 for ONS-5010, an investigational ophthalmic formulation of bevacizumab for the treatment of wet age-related macular degeneration (wet AMD) ISELIN, N.J., August 14, 2023 — Outlook The

August 14, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 14, 2023 Outlook Therapeut

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 14, 2023 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commiss

August 14, 2023 S-3

As filed with the Securities and Exchange Commission on August 14, 2023

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 14, 2023 Registration No.

May 16, 2023 EX-10.1

At-the-market Sales Agreement between the Company and BTIG, LLC dated May 16, 2023 (incorporated by reference to Exhibit 10.1 to the Company’s current report on Form 8-K filed with the SEC on May 16, 2023).

Exhibit 10.1 EXECUTION VERSION Outlook Therapeutics, inc. UP TO $100,000,000 OF COMMON STOCK (par value $0.01 per share) At-the-market SALES AGREEMENT May 16, 2023 BTIG, LLC 600 Montgomery Street, 6th Floor San Francisco, CA 94111 Ladies and Gentlemen: Outlook Therapeutics, Inc., a Delaware corporation (the “Company”), confirms its agreement (this “Agreement”) with BTIG, LLC (“BTIG” and, together

May 16, 2023 424B5

Up to $100,000,000 Common Stock

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration No. 333-254778 PROSPECTUS SUPPLEMENT (To Prospectus dated April 1, 2021) Up to $100,000,000 Common Stock We have entered into an at-the-market-sales agreement, or the Sales Agreement, with BTIG, LLC, or BTIG, acting in its capacity as the sales agent, relating to the offer and sale from time to time of up to $100,000,000 of our comm

May 16, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2023 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2023 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 15, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

May 15, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2023 Outlook Therapeutics

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2023 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commission

May 15, 2023 EX-99.1

Outlook Therapeutics® Reports Financial Results for Second Quarter Fiscal Year 2023 and Provides Corporate Update

Exhibit 99.1 Outlook Therapeutics® Reports Financial Results for Second Quarter Fiscal Year 2023 and Provides Corporate Update ● Upcoming Prescription Drug User Fee Act (PDUFA) goal date of August 29, 2023 for ONS-5010, an investigational ophthalmic formulation of bevacizumab for the treatment of wet age-related macular degeneration (wet AMD) ● Pre-launch commercial activities continue in preparat

April 3, 2023 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 30, 2023 (April 3, 2023)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 30, 2023 (April 3, 2023) Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorp

March 30, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 29, 2023 Outlook Therapeuti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 29, 2023 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commissi

March 30, 2023 EX-3.1

Certificate of Amendment to Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the Registrant’s current report on Form 8-K filed with the SEC on March 30, 2023, as subsequently amended).

Exhibit 3.1 Delaware The First State Page 1 5857184 8100 Authentication: 203031597 SR# 20231200775 Date: 03-29-23 You may verify this certificate online at corp.delaware.gov/authver.shtml I, JEFFREY W. BULLOCK, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED IS A TRUE AND CORRECT COPY OF THE CERTIFICATE OF AMENDMENT OF “OUTLOOK THERAPEUTICS, INC.”, FILED IN THIS OFFICE

February 21, 2023 SC 13G/A

OTLK / Outlook Therapeutics Inc / Hope Jason - OUTLOOK THERAPEUTICS, INC./JASON HOPE SCHEDULE 13G/A, AMENDMENT NO. 1 Passive Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1) Outlook Therapeutics, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 69012T 206 (C

February 15, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (

February 15, 2023 ARS

ARS

January2023 Toourvalued shareholders, I am pleased to be writing you after a noteworthy 2022 that we believe was foundational for a transformative 2023 for Outlook Therapeutics.

February 14, 2023 EX-99.1

Outlook Therapeutics® Reports Financial Results for First Quarter Fiscal Year 2023 and Provides Corporate Update

Exhibit 99.1 Outlook Therapeutics® Reports Financial Results for First Quarter Fiscal Year 2023 and Provides Corporate Update · Pre-launch commercial activities underway as Company advances toward U.S. Food and Drug Administration (FDA) Prescription Drug User Fee Act (PDUFA) goal date of August 29, 2023 for ONS-5010 / LYTENAVA™ (bevacizumab-vikg), an investigational ophthalmic formulation for the

February 14, 2023 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Outlook Therapeutics, Inc.

February 14, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 14, 2023 Outlook Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 001-37759 38-3982704 (State or other jurisdiction of incorporation) (Commi

February 14, 2023 S-8

As filed with the Securities and Exchange Commission on February 14, 2023

As filed with the Securities and Exchange Commission on February 14, 2023 Registration No.

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