Cypherpunk Technologies Inc. (CYPH)
Nasdaq: CYPH · Pharmaceutical Preparations · Cambridge, MA · filing with the SEC since 2011
Who owns Cypherpunk Technologies Inc.
As filed with the SECHolders of 5% or more
2
Winklevoss Capital Fund, LLC holds 19.9% of Common Stock, par value $0.001 per share, as its SCHEDULE 13D/A filed Aug 19, 2026 says.
Directors and officers
14
report now, of 21 people on the record since 2017. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 2 named at left.
Holders of 5% or moreshare of the class, as filed
Winklevoss Capital Fund, LLC
SCHEDULE 13D/A · filed Aug 19, 2026 · Common Stock, par value $0.001 per share · 19.9% in Nov 21, 2025
Severns Sean Michael
SCHEDULE 13G · filed Nov 18, 2025 · Common Stock, par value $0.001 per share
Gilead Sciences, Inc.
SCHEDULE 13G/A · filed Feb 12, 2026 · Common Stock, par value $0.001 per share · reported falling below 5%
Samsara BioCapital, L.P.
SCHEDULE 13G/A · filed Aug 14, 2025 · Common stock, $0.001 par value per share · reported falling below 5%
Balyasny Asset Management L.P.
SCHEDULE 13G/A · filed Feb 14, 2025 · Common Stock, par value $0.001 per share · reported falling below 5%
BeOne Medicines Ltd.
SCHEDULE 13D/A · filed Oct 31, 2024 · Common Stock, par value $0.001 per share · reported falling below 5%
What CYPH reports owning in othersstakes of 5% or more, and other ties
4 subsidiaries in 2 countries, from the list filed with the 10-K filed Mar 16, 2026.
Insider tradesForm 4
9sales
0purchases
0sales on a scheduled plan
6people selling
$6.0Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Oct 14, 2025 to Oct 14, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 14, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window6 of 39 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Mirabelli Christopher | Chairman of the Board | 3 | $2.2M | 0 | 0 | $0 |
| Onsi Douglas E | CEO,CFO,Pres.,GC,Treas.&Sec. | 2 | $2.1M | 0 | 0 | $0 |
| Cavanaugh James H | director | 1 | $800,000 | 0 | 0 | $0 |
| Oei Khing Djien | director | 1 | $700,000 | 0 | 0 | $0 |
| Martin Patricia A. | director | 1 | $200,000 | 0 | 0 | $0 |
| Dietz Thomas John | director | 1 | $0 | 0 | 0 | $0 |