Hummingbird Dragons CommV 3
3 · BillionToOne, Inc. · Filed Jan 20, 2026
Insider Transaction Report
Form 3
Humming Bird Ventures Management NV
10% Owner
Holdings
- 179,999(indirect: See footnotes)
Common Stock
[F1][F2][F8] - (indirect: See footnotes)
Series B-2 Convertible Preferred Stock
[F3][F1][F4][F8]→ Common Stock (640,727 underlying) - (indirect: See footnotes)
Series B-1 Convertible Preferred Stock
[F3][F1][F5][F8]→ Common Stock (18,845 underlying) - (indirect: See footnotes)
Series C Convertible Preferred Stock
[F3][F1][F6][F8]→ Common Stock (1,569,015 underlying) - (indirect: See footnotes)
Series D Convertible Preferred Stock
[F3][F1][F6][F8]→ Common Stock (446,103 underlying) - (indirect: See footnotes)
Series A-1 Convertible Preferred Stock
[F3][F1][F2][F8]→ Common Stock (20,000 underlying) - (indirect: See footnotes)
Series A-2 Convertible Preferred Stock
[F3][F1][F2][F8]→ Common Stock (33,000 underlying) - (indirect: See footnotes)
Series B-1 Convertible Preferred Stock
[F3][F1][F2][F8]→ Common Stock (2,261,377 underlying) - (indirect: See footnotes)
Series C Convertible Preferred Stock
[F3][F1][F2][F8]→ Common Stock (137,288 underlying) - (indirect: See footnotes)
Series A-6 Convertible Preferred Stock
[F3][F1][F7][F8]→ Common Stock (2,260,520 underlying) - (indirect: See footnotes)
Series B-2 Convertible Preferred Stock
[F3][F1][F7][F8]→ Common Stock (320,363 underlying)
Footnotes (8)
- [F1]Immediately prior to the completion of the Issuer's initial public offering of Class A common stock (the "Offering"), each share of Common Stock shall be reclassified into one share of Class A common stock.
- [F2]The reported security is directly held by Hummingbird Opportunity Fund II CommV.
- [F3]The reported security is convertible into the Issuer's Common Stock on a one-for-one basis at any time at the holder's election and shall automatically convert into Class A common stock immediately prior to the closing of the Offering without payment of further consideration. The shares have no expiration date.
- [F4]The reported security is directly held by HB&Q NV (HB&Q COMPARTMENT III).
- [F5]The reported security is directly held by Hummingbird Collective CommV.
- [F6]The reported security is directly held by Hummingbird Dragons CommV.
- [F7]The reported security is directly held by Hummingbird Ventures III CommV.
- [F8]Humming Bird Ventures Management NV is the managing member of Hummingbird Opportunity Fund II CommV, Hummingbird Ventures III CommV, Hummingbird Dragons CommV, Hummingbird Collective CommV, and HB&Q NV (HB&Q COMPARTMENT III) (the "Hummingbird Funds") and, as a result, may be deemed to beneficially own shares held by the Hummingbird Funds. Firat Ileri, Barend Van den Brande, and Lukas Decoster are partners of Hummingbird Ventures Management NV and may be deemed to have shared voting and investment power over the shares held by the Hummingbird Funds. The Reporting Persons disclaim beneficial ownership of these shares except to the extent of their pecuniary interests therein.