Cloudflare, Inc.
MX ˙ BMV ˙ US18915M1071
SecurityMX:NET / Cloudflare, Inc.
InstitutionTwo Sigma Securities, Llc
Latest Disclosed Ownership1,712 shares
Latest Disclosed Value $ 353,254
Two Sigma Securities, Llc ownership in NET / Cloudflare, Inc.

On May 15, 2026 - Two Sigma Securities, Llc filed a 13F-HR form disclosing ownership of 1,712 shares of Cloudflare, Inc. (MX:NET) valued at $353,254 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,865 shares of Cloudflare, Inc.. This represents a change in shares of -40.24% during the quarter.

Two Sigma Securities, Llc 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 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 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.

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Institutional Put/Call Ratios
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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)
2026-05-15 2026-03-31 13F CLOUDFLARE CL A COM 18915M107 1,712 -1,153 -40.24 353 -37.41 0.0410
2026-02-17 2025-12-31 13F CLOUDFLARE CL A COM 18915M107 2,865 1,854 183.38 565 161.11 0.0776
2025-11-14 2025-09-30 13F CLOUDFLARE CL A COM 18915M107 1,011 1,011 217 0.0320
2025-05-15 2025-03-31 13F CLOUDFLARE CL A COM 18915M107 0 -2,963 -100.00 0 -100.00
2025-02-14 2024-12-31 13F CLOUDFLARE CL A COM 18915M107 2,963 2,963 319 0.0423
2024-11-14 2024-09-30 13F CLOUDFLARE CL A COM 18915M107 0 -14,830 -100.00 0 -100.00
2024-08-14 2024-06-30 13F CLOUDFLARE CL A COM 18915M107 14,830 -33,349 -69.22 1,228 -73.68 0.0148
2024-05-15 2024-03-31 13F CLOUDFLARE CL A COM 18915M107 48,179 -7,177 -12.97 4,665 1.24 0.0450
2024-02-14 2023-12-31 13F CLOUDFLARE CL A COM 18915M107 55,356 16,827 43.67 4,609 89.79 0.0445
2023-11-14 2023-09-30 13F CLOUDFLARE CL A COM 18915M107 38,529 29,808 341.80 2,429 325.96 0.0258
2023-08-14 2023-06-30 13F CLOUDFLARE CL A COM 18915M107 8,721 -1,949 -18.27 570 -13.24 0.0085
2023-05-15 2023-03-31 13F CLOUDFLARE CL A COM 18915M107 10,670 10,670 658 0.0132
2022-11-14 2022-09-30 13F CLOUDFLARE CL A COM 18915M107 0 -13,921 -100.00 0 -100.00
2022-08-15 2022-06-30 13F CLOUDFLARE CL A COM 18915M107 13,921 3,043 27.97 609 -53.23 0.0216
2022-05-16 2022-03-31 13F CLOUDFLARE CL A COM 18915M107 10,878 7,448 217.14 1,302 188.69 0.0458
2022-02-14 2021-12-31 13F CLOUDFLARE CL A COM 18915M107 3,430 3,430 451 0.0196
2020-02-14 2019-12-31 13F CLOUDFLARE CL A COM 18915M107 0 -10,592 -100.00 0 -100.00
2019-11-14 2019-09-30 13F CLOUDFLARE CL A COM 18915M107 10,592 10,592 197 0.0018
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
(%)
2025-02-14 2024-12-31 13F CLOUDFLARE CL A COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F CLOUDFLARE CL A COM Call 52,500 50.43 4,247 46.92 n/a n/a n/a
2024-08-14 2024-06-30 13F CLOUDFLARE CL A COM Call 34,900 -8.88 2,891 -22.06 n/a n/a n/a
2024-05-15 2024-03-31 13F CLOUDFLARE CL A COM Call 38,300 -8.59 3,709 6.31 n/a n/a n/a
2024-02-14 2023-12-31 13F CLOUDFLARE CL A COM Call 41,900 -62.85 3,489 -50.94 n/a n/a n/a
2023-11-14 2023-09-30 13F CLOUDFLARE CL A COM Call 112,800 51.21 7,111 45.82 n/a n/a n/a
2023-08-14 2023-06-30 13F CLOUDFLARE CL A COM Call 74,600 149.50 4,877 164.57 n/a n/a n/a
2023-05-15 2023-03-31 13F CLOUDFLARE CL A COM Call 29,900 -33.56 1,844 -9.39 n/a n/a n/a
2023-02-14 2022-12-31 13F CLOUDFLARE CL A COM Call 45,000 603.12 2,034 474.58 n/a n/a n/a
2022-11-14 2022-09-30 13F CLOUDFLARE CL A COM Call 6,400 -95.56 354 -94.39 n/a n/a n/a
2022-08-15 2022-06-30 13F CLOUDFLARE CL A COM Call 144,200 880.95 6,309 258.47 n/a n/a n/a
2022-05-16 2022-03-31 13F CLOUDFLARE CL A COM Call 14,700 113.04 1,760 94.05 n/a n/a n/a
2022-02-14 2021-12-31 13F CLOUDFLARE CL A COM Call 6,900 -61.02 907 -54.51 n/a n/a n/a
2021-11-15 2021-09-30 13F CLOUDFLARE CL A COM Call 17,700 240.38 1,994 262.55 n/a n/a n/a
2021-08-16 2021-06-30 13F CLOUDFLARE CL A COM Call 5,200 550 n/a n/a n/a
2021-05-17 2021-03-31 13F CLOUDFLARE CL A COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-16 2020-12-31 13F CLOUDFLARE CL A COM Call 5,500 418 n/a n/a n/a
2020-05-15 2020-03-31 13F CLOUDFLARE CL A COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F CLOUDFLARE CL A COM Call 22,600 386 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
(%)
2025-05-15 2025-03-31 13F CLOUDFLARE CL A COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F CLOUDFLARE CL A COM Put 3,700 -95.01 398 -93.36 n/a n/a n/a
2024-11-14 2024-09-30 13F CLOUDFLARE CL A COM Put 74,100 23.91 5,994 21.00 n/a n/a n/a
2024-08-14 2024-06-30 13F CLOUDFLARE CL A COM Put 59,800 -36.85 4,953 -45.98 n/a n/a n/a
2024-05-15 2024-03-31 13F CLOUDFLARE CL A COM Put 94,700 82.82 9,170 112.64 n/a n/a n/a
2024-02-14 2023-12-31 13F CLOUDFLARE CL A COM Put 51,800 -58.99 4,313 -45.84 n/a n/a n/a
2023-11-14 2023-09-30 13F CLOUDFLARE CL A COM Put 126,300 69.99 7,962 63.94 n/a n/a n/a
2023-08-14 2023-06-30 13F CLOUDFLARE CL A COM Put 74,300 105.25 4,857 117.56 n/a n/a n/a
2023-05-15 2023-03-31 13F CLOUDFLARE CL A COM Put 36,200 14.92 2,232 56.74 n/a n/a n/a
2023-02-14 2022-12-31 13F CLOUDFLARE CL A COM Put 31,500 1,424 n/a n/a n/a
2022-11-14 2022-09-30 13F CLOUDFLARE CL A COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-15 2022-06-30 13F CLOUDFLARE CL A COM Put 151,000 474.14 6,606 109.85 n/a n/a n/a
2022-05-16 2022-03-31 13F CLOUDFLARE CL A COM Put 26,300 286.76 3,148 252.13 n/a n/a n/a
2022-02-14 2021-12-31 13F CLOUDFLARE CL A COM Put 6,800 -41.38 894 -31.60 n/a n/a n/a
2021-11-15 2021-09-30 13F CLOUDFLARE CL A COM Put 11,600 176.19 1,307 193.71 n/a n/a n/a
2021-08-16 2021-06-30 13F CLOUDFLARE CL A COM Put 4,200 445 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
2021-02-16 2020-12-31 13F CLOUDFLARE CL A COM Put 3,300 251 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.