Assertio Holdings, Inc.

SecurityASRT / Assertio Holdings, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership14,570 shares
Latest Disclosed Value $ 277,704
Northern Trust Corp reports 7.94% increase in ownership of ASRT / Assertio Holdings, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 14,570 shares of Assertio Holdings, Inc. (US:ASRT) valued at $277,704 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 13,498 shares of Assertio Holdings, Inc.. This represents a change in shares of 7.94% during the quarter. The current value of the position is $341,666 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F ASSERTIO HOLDINGS COM NEW 04546C304 14,570 1,072 7.94 278 127.05 0.0000
2026-02-17 2025-12-31 13F ASSERTIO HOLDINGS COM NEW 04546C304 13,498 -743,688 -98.22 122 -75.20 0.0000
2020-05-14 2020-03-31 13F ASSERTIO THERAPEUTICS COM 04545L107 757,186 17,796 2.41 492 -46.75 0.0001
2020-02-14 2019-12-31 13F ASSERTIO THERAPEUTICS COM 04545L107 739,390 -84,671 -10.27 924 -12.42 0.0002
2019-11-13 2019-09-30 13F ASSERTIO THERAPEUTICS COM 04545L107 824,061 41,761 5.34 1,055 -60.91 0.0003
2019-08-13 2019-06-30 13F ASSERTIO THERAPEUTICS COM 04545L107 782,300 -16,602 -2.08 2,699 -33.37 0.0006
2019-05-13 2019-03-31 13F ASSERTIO THERAPEUTICS COM 04545L107 798,902 -583 -0.07 4,051 40.32 0.0010
2019-02-12 2018-12-31 13F ASSERTIO THERAPEUTICS COM 04545L107 799,485 -31,924 -3.84 2,887 -40.95 0.0008
2018-11-14 2018-09-30 13F ASSERTIO THERAPEUTICS COM 04545L107 831,409 76,101 10.08 4,889 -2.94 0.0012
2018-09-18 2018-06-30 13F/A-1 DEPOMED COM 249908104 755,308 -9,398 -1.23 5,037 -0.04 0.0013
2018-08-14 2018-06-30 13F DEPOMED COM 249908104 783,754 19,048 5,227
2018-05-09 2018-03-31 13F DEPOMED COM 249908104 764,706 15,713 2.10 5,039 -16.43 0.0013
2018-02-14 2017-12-31 13F DEPOMED COM 249908104 748,993 -1,897 -0.25 6,030 38.68 0.0015
2017-11-13 2017-09-30 13F DEPOMED COM 249908104 750,890 -19,219 -2.50 4,348 -47.43 0.0011
2017-08-11 2017-06-30 13F DEPOMED COM 249908104 770,109 -17,092 -2.17 8,271 -16.28 0.0023
2017-05-12 2017-03-31 13F DEPOMED COM 249908104 787,201 39,192 5.24 9,879 -26.71 0.0028
2017-02-13 2016-12-31 13F DEPOMED COM 249908104 748,009 7,751 1.05 13,479 -27.08 0.0041
2016-11-09 2016-09-30 13F DEPOMED COM 249908104 740,258 1,961 0.27 18,484 27.61 0.0058
2016-08-12 2016-06-30 13F DEPOMED COM 249908104 738,297 16,744 2.32 14,485 44.12 0.0047
2016-08-19 2016-03-31 13F/A-1 DEPOMED COM 249908104 721,553 9,021 1.27 10,051 -22.19 0.0033
2016-05-13 2016-03-31 13F DEPOMED COM 249908104 721,553 10,051
2016-02-12 2015-12-31 13F DEPOMED COM 249908104 712,532 11,918 1.70 12,918 -2.18 0.0043
2015-11-12 2015-09-30 13F DEPOMED COM 249908104 700,614 24,252 3.59 13,206 -9.02 0.0044
2015-08-13 2015-06-30 13F DEPOMED COM 249908104 676,362 -33,303 -4.69 14,515 -8.73 0.0098
2015-05-14 2015-03-31 13F Depomed COMM 249908104 709,665 25,730 3.76 15,904 44.35 0.0048
2015-02-12 2014-12-31 13F Depomed COM 249908104 683,935 -21,867 -3.10 11,018 2.77 0.0033
2014-11-13 2014-09-30 13F DEPOMED COM 249908104 705,802 7,045 1.01 10,721 10.39 0.0034
2014-08-14 2014-06-30 13F DEPOMED COM 249908104 698,757 -94,462 -11.91 9,712 -15.56 0.0030
2014-05-14 2014-03-31 13F DEPOMED COM 249908104 793,219 -74,702 -8.61 11,502 25.27 0.0036
2014-02-21 2013-12-31 13F/A-1 DEPOMED COM 249908104 867,921 12,259 1.43 9,182 43.65 0.0029
2014-02-12 2013-12-31 13F DEPOMED COM 249908104 867,921 9,182
2013-11-13 2013-09-30 13F DEPOMED COM 249908104 855,662 -11,435 -1.32 6,392 31.17 0.0023
2013-08-09 2013-06-30 13F DEPOMED COM 249908104 867,097 867,097 4,873 0.0018
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.