Cloudflare, Inc.
MX ˙ BMV ˙ US18915M1071
SecurityMX:NET / Cloudflare, Inc.
InstitutionTwin Tree Management, LP
Latest Disclosed Ownership3,049 shares
Latest Disclosed Value $ 629,131
Twin Tree Management, LP ownership in NET / Cloudflare, Inc.

On May 14, 2026 - Twin Tree Management, LP filed a 13F-HR form disclosing ownership of 3,049 shares of Cloudflare, Inc. (MX:NET) valued at $629,131 USD as of March 31, 2026. The entity filed a previous 13F-HR on July 28, 2025 disclosing 0 shares of Cloudflare, Inc..

Twin Tree Management, LP has a history of taking positions in derivatives of the underlying security (NET) in the form of stock options. The firm currently holds call options representing 1,500 of underlying shares valued at $309,510 USD and put options representing 18,700 of underlying shares valued at $3,858,558 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:NET / Cloudflare, Inc. Historical Put/Call Ratio
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 CLOUDFLARE CL A COM 18915M107 3,049 3,049 629 0.0132
2025-07-28 2025-06-30 13F CLOUDFLARE CL A COM 18915M107 0 -108,012 -100.00 0 -100.00
2025-05-15 2025-03-31 13F CLOUDFLARE CL A COM 18915M107 108,012 108,012 12,172 0.0229
2024-11-13 2024-09-30 13F CLOUDFLARE CL A COM 18915M107 0 -167,047 -100.00 0 -100.00
2024-08-13 2024-06-30 13F CLOUDFLARE CL A COM 18915M107 167,047 167,047 13,837 0.0312
2024-02-14 2023-12-31 13F CLOUDFLARE CL A COM 18915M107 0 -207,285 -100.00 0 -100.00
2023-11-14 2023-09-30 13F CLOUDFLARE CL A COM 18915M107 207,285 207,285 13,067 0.0294
2023-05-10 2023-03-31 13F CLOUDFLARE CL A COM 18915M107 0 -257,361 -100.00 0 -100.00
2023-02-13 2022-12-31 13F CLOUDFLARE CL A COM 18915M107 257,361 91,649 55.31 11,635 26.94 0.0252
2022-11-10 2022-09-30 13F CLOUDFLARE CL A COM 18915M107 165,712 -307,016 -64.95 9,166 -55.68 0.0175
2022-08-11 2022-06-30 13F CLOUDFLARE CL A COM 18915M107 472,728 471,699 45,840.52 20,682 16,714.63 0.0329
2022-05-11 2022-03-31 13F CLOUDFLARE CL A COM 18915M107 1,029 1,029 123 0.0002
2022-02-09 2021-12-31 13F CLOUDFLARE CL A COM 18915M107 0 -14,704 -100.00 0 -100.00
2021-11-12 2021-09-30 13F CLOUDFLARE CL A COM 18915M107 14,704 -33,309 -69.37 1,656 -67.41 0.0036
2021-08-12 2021-06-30 13F CLOUDFLARE CL A COM 18915M107 48,013 42,435 760.76 5,082 1,196.43 0.0136
2021-05-17 2021-03-31 13F CLOUDFLARE CL A COM 18915M107 5,578 -58,803 -91.34 392 -91.99 0.0015
2021-02-12 2020-12-31 13F CLOUDFLARE CL A COM 18915M107 64,381 35,293 121.33 4,892 309.72 0.0196
2020-11-13 2020-09-30 13F CLOUDFLARE CL A COM 18915M107 29,088 29,088 1,194 0.0049
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F CLOUDFLARE CL A COM Call 1,500 -93.18 310 -92.88 n/a n/a n/a
2026-02-11 2025-12-31 13F CLOUDFLARE CL A COM Call 22,000 -53.09 4,337 -56.91 n/a n/a n/a
2025-11-13 2025-09-30 13F CLOUDFLARE CL A COM Call 46,900 -81.15 10,064 -79.34 n/a n/a n/a
2025-07-28 2025-06-30 13F CLOUDFLARE CL A COM Call 248,800 26.74 48,723 120.25 n/a n/a n/a
2025-05-15 2025-03-31 13F CLOUDFLARE CL A COM Call 196,300 1.13 22,121 5.84 n/a n/a n/a
2025-02-10 2024-12-31 13F CLOUDFLARE ORDINARY SHARES - CL Call 194,100 184.60 20,901 278.90 n/a n/a n/a
2024-11-13 2024-09-30 13F CLOUDFLARE CL A COM Call 68,200 0.00 5,517 -2.35 n/a n/a n/a
2024-08-13 2024-06-30 13F CLOUDFLARE CL A COM Call 68,200 -83.67 5,649 -86.03 n/a n/a n/a
2024-05-09 2024-03-31 13F CLOUDFLARE CL A COM Call 417,600 40,436 n/a n/a n/a
2022-08-11 2022-06-30 13F CLOUDFLARE CL A COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-11 2022-03-31 13F CLOUDFLARE CL A COM Call 164,500 19,691 n/a n/a n/a
2022-02-09 2021-12-31 13F CLOUDFLARE CL A COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-12 2021-09-30 13F CLOUDFLARE CL A COM Call 6,900 777 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F CLOUDFLARE CL A COM Put 18,700 3,859 n/a n/a n/a
2025-11-13 2025-09-30 13F CLOUDFLARE CL A COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-07-28 2025-06-30 13F CLOUDFLARE CL A COM Put 221,700 -31.89 43,416 18.36 n/a n/a n/a
2025-05-15 2025-03-31 13F CLOUDFLARE CL A COM Put 325,500 66.16 36,681 73.89 n/a n/a n/a
2025-02-10 2024-12-31 13F CLOUDFLARE ORDINARY SHARES - CL Put 195,900 51.39 21,095 101.53 n/a n/a n/a
2024-11-13 2024-09-30 13F CLOUDFLARE CL A COM Put 129,400 -73.09 10,467 -73.72 n/a n/a n/a
2024-08-13 2024-06-30 13F CLOUDFLARE CL A COM Put 480,800 -44.88 39,825 -52.85 n/a n/a n/a
2024-05-09 2024-03-31 13F CLOUDFLARE CL A COM Put 872,200 -13.08 84,455 1.09 n/a n/a n/a
2024-02-14 2023-12-31 13F CLOUDFLARE PUT Put 1,003,400 -23.66 83,543 0.83 n/a n/a n/a
2023-11-14 2023-09-30 13F CLOUDFLARE PUT Put 1,314,300 94.28 82,853 87.36 n/a n/a n/a
2023-08-11 2023-06-30 13F CLOUDFLARE PUT Put 676,500 -5.17 44,223 0.53 n/a n/a n/a
2023-05-10 2023-03-31 13F CLOUDFLARE PUT Put 713,400 -14.96 43,988 15.98 n/a n/a n/a
2023-02-13 2022-12-31 13F CLOUDFLARE PUT Put 838,900 31.02 37,927 7.09 n/a n/a n/a
2022-11-10 2022-09-30 13F CLOUDFLARE PUT Put 640,300 -21.23 35,415 -0.42 n/a n/a n/a
2022-08-11 2022-06-30 13F CLOUDFLARE PUT Put 812,900 87.48 35,564 -31.48 n/a n/a n/a
2022-05-11 2022-03-31 13F CLOUDFLARE CL A COM Put 433,600 51,902 n/a n/a n/a
2021-11-12 2021-09-30 13F CLOUDFLARE CL A COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-12 2021-06-30 13F CLOUDFLARE CL A COM Put 9,100 963 n/a n/a n/a
2021-05-17 2021-03-31 13F CLOUDFLARE CL A COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-12 2020-12-31 13F CLOUDFLARE CL A COM Put 9,100 692 n/a n/a n/a
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.