As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Cypherpunk Technologies Inc. The largest reported stake is Winklevoss Capital Fund, LLC's, at 19.9%. 6 filings are on record since August 14, 2025 (Schedule 13D/A, August 19, 2026).
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Key facts
- · Reporting person: Winklevoss Capital Fund, LLC · Sole voting: 0 · Shared voting: 24,854,613 · Sole dispositive: 0 · Shared dispositive: 24,854,613 · SCHEDULE 13D/A, 2026-08-19
- · Reporting person: Gilead Sciences, Inc. · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-02-12
- · Holder: Winklevoss Capital Fund, LLC · Percent: 19.9% · SCHEDULE 13D/A
- · Reporting person: Severns Sean Michael · Sole voting: 6,000,000 · Shared voting: 0 · Sole dispositive: 6,000,000 · Shared dispositive: 0 · SCHEDULE 13G, 2025-11-18
- · Holder: Winklevoss Capital Fund, LLC · Percent: 19.9% · SCHEDULE 13D
Cypherpunk Technologies Inc. has 6 Schedule 13D or 13G filings on record since 2025-08-14. 2 holders' latest filing reports 5% or more of common stock, par value $0.001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Winklevoss Capital Fund, LLC | 19.9% | 24,854,613 | SCHEDULE 13D/A, 2026-08-19 | 2026-08-17 |
| 10.59% | 6,000,000 | SCHEDULE 13G, 2025-11-18 | 2025-11-12 | |
| Samsara BioCapital, L.P. | 0% | 0 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| Gilead Sciences, Inc. | 0% | 0 | SCHEDULE 13G/A, 2026-02-12 | 2025-12-31 |
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More on Cypherpunk Technologies Inc. and the records around it.
Cypherpunk Technologies Inc. elsewhere on the record
- Leadership changes Sep 2026
- Who owns it
Companies that share a holder
- Winklevoss Capital Fund, LLC also filed stake reports on 2 other companies: Gemini Space Station, Inc. (May 2026), Empery Digital Inc. (May 2026)
- GILEAD SCIENCES, INC. also filed stake reports on 5 other companies: Aspen Neuroscience, Inc. (Nov 2026), Arcus Biosciences, Inc. (Aug 2026), ASSEMBLY BIOSCIENCES, INC. (May 2026)
- Samsara BioCapital, L.P. also filed stake reports on 14 other companies: PMV Pharmaceuticals, Inc. (Sep 2026), Eloxx Pharmaceuticals, Inc. (Aug 2026), RANI THERAPEUTICS HOLDINGS, INC. (May 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Winklevoss Capital Fund, LLC | 0 | 24,854,613 | 0 | 24,854,613 | SCHEDULE 13D/A, 2026-08-19 |
| Winklevoss Treasury Investments, LLC | 0 | 24,854,613 | 0 | 24,854,613 | SCHEDULE 13D/A, 2026-08-19 |
| Winklevoss Capital Management, LLC | 0 | 24,854,613 | 0 | 24,854,613 | SCHEDULE 13D/A, 2026-08-19 |
| Tyler Howard Winklevoss | 0 | 24,854,613 | 0 | 24,854,613 | SCHEDULE 13D/A, 2026-08-19 |
| Cameron Howard Winklevoss | 0 | 24,854,613 | 0 | 24,854,613 | SCHEDULE 13D/A, 2026-08-19 |
| Severns Sean Michael | 6,000,000 | 0 | 6,000,000 | 0 | SCHEDULE 13G, 2025-11-18 |
| Gilead Sciences, Inc. | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-02-12 |
The latest filing identifies Cypherpunk Technologies Inc. by CUSIP 52187K200 and gives its principal executive office as 47 Thorndike Street, Suite B1-1, Cambridge, MA 02141 (SCHEDULE 13D/A, 2026-08-19).
Source of funds (Item 3)
Item 3 of the Statement is hereby amended and supplemented as follows: Pre-Funded Warrant Exercise On August 17, 2026, WTI exercised Pre-Funded Warrants to purchase an aggregate of 16,570,852 shares of the Issuer's Common Stock for $0.001 a share. The exercise was for cash and was funded by working capital of WTI.Winklevoss Capital Fund, LLC, SCHEDULE 13D/A, 2026-08-19
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-14 | Samsara BioCapital, L.P. | 0% | SCHEDULE 13G/A |
| 2025-10-16 | Winklevoss Capital Fund, LLC | 19.9% | SCHEDULE 13D |
| 2025-11-18 | Severns Sean Michael | 10.59% | SCHEDULE 13G |
| 2025-11-21 | Winklevoss Capital Fund, LLC | 19.9% | SCHEDULE 13D/A |
| 2026-02-12 | Gilead Sciences, Inc. | 0% | SCHEDULE 13G/A |
| 2026-08-19 | Winklevoss Capital Fund, LLC | 19.9% | SCHEDULE 13D/A |
Questions about who owns Cypherpunk Technologies Inc.
Who owns Cypherpunk Technologies Inc.?
On this page, 2 holders' latest ownership filings report 5% or more of Cypherpunk Technologies Inc.: Winklevoss Capital Fund, LLC (19.9%, Schedule 13D/A, filed 2026-08-19) and Severns Sean Michael (10.59%, Schedule 13G, filed 2025-11-18).
Who are the largest shareholders of Cypherpunk Technologies Inc.?
By the share each holder's latest filing reports, the largest holders of Cypherpunk Technologies Inc. on this page are Winklevoss Capital Fund, LLC (19.9%) and Severns Sean Michael (10.59%).
When did Winklevoss Capital Fund, LLC buy into Cypherpunk Technologies Inc.?
The filings give report dates, not purchase dates. The earliest filing from Winklevoss Capital Fund, LLC on this page is the Schedule 13D, filed 2025-10-16, reporting 19.9%; its latest, Schedule 13D/A filed 2026-08-19, reports 19.9%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 6 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Cypherpunk Technologies Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| September 22, 2026 | Leadership change: Amanda Fabiano appointed, Director | — | Leadership changes | Source |
| April 10, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.