4//SEC Filing
Bremner Thomas S 4
Accession 0001193125-25-274945
CIK 0002070849other
Filed
Nov 9, 7:00 PM ET
Accepted
Nov 10, 9:38 PM ET
Size
116.9 KB
Accession
0001193125-25-274945
Insider Transaction Report
Form 4
Bremner Thomas S
Director
Transactions
- Conversion
Series A-1 Convertible Preferred Stock
2025-11-07−5,988→ 0 total(indirect: See Footnotes)→ Common Stock (5,988 underlying) - Conversion
Series A-1 Convertible Preferred Stock
2025-11-07−1,078→ 0 total(indirect: See Footnotes)→ Common Stock (1,078 underlying) - Conversion
Series C-1 Convertible Preferred Stock
2025-11-07−13,355→ 0 total(indirect: See Footnotes)→ Common Stock (13,355 underlying) - Purchase
Class A Common Stock
2025-11-07$60.00/sh+4,016$240,960→ 156,456 total(indirect: See Footnotes) - Purchase
Class A Common Stock
2025-11-07$60.00/sh+4,084$245,040→ 159,795 total(indirect: See Footnotes) - Purchase
Class A Common Stock
2025-11-07$60.00/sh+5,446$326,760→ 275,364 total(indirect: See Footnotes) - Conversion
Series C Convertible Preferred Stock
2025-11-07−114,117→ 0 total(indirect: See Footnotes)→ Common Stock (114,117 underlying) - Conversion
Series D Convertible Preferred Stock
2025-11-07−20,224→ 0 total(indirect: See Footnotes)→ Common Stock (20,224 underlying) - Conversion
Series C-1 Convertible Preferred Stock
2025-11-07−17,858→ 0 total(indirect: See Footnotes)→ Common Stock (17,858 underlying) - Conversion
Series C Convertible Preferred Stock
2025-11-07−131,888→ 0 total(indirect: See Footnotes)→ Common Stock (131,888 underlying) - Conversion
Series A-1 Convertible Preferred Stock
2025-11-07−1,864→ 0 total(indirect: See Footnotes)→ Common Stock (1,864 underlying) - Conversion
Series C Convertible Preferred Stock
2025-11-07−157,404→ 0 total(indirect: See Footnotes)→ Common Stock (157,404 underlying) - Conversion
Series D Convertible Preferred Stock
2025-11-07−87,550→ 0 total(indirect: See Footnotes)→ Common Stock (87,550 underlying) - Conversion
Series C Convertible Preferred Stock
2025-11-07−55,091→ 0 total(indirect: See Footnotes)→ Common Stock (55,091 underlying) - Conversion
Series D Convertible Preferred Stock
2025-11-07−176,245→ 0 total(indirect: See Footnotes)→ Common Stock (176,245 underlying) - Conversion
Series D Convertible Preferred Stock
2025-11-07−122,072→ 0 total(indirect: See Footnotes)→ Common Stock (122,072 underlying) - Conversion
Common Stock
2025-11-07+269,918→ 269,918 total(indirect: See Footnotes) - Conversion
Common Stock
2025-11-07+277,508→ 277,508 total(indirect: See Footnotes) - Other
Common Stock
2025-11-07−176,271→ 0 total(indirect: See Footnotes) - Conversion
Series C-1 Convertible Preferred Stock
2025-11-07−8,084→ 0 total(indirect: See Footnotes)→ Common Stock (8,084 underlying) - Conversion
Series D Convertible Preferred Stock
2025-11-07−89,599→ 0 total(indirect: See Footnotes)→ Common Stock (89,599 underlying) - Conversion
Common Stock
2025-11-07+155,711→ 155,711 total(indirect: See Footnotes) - Purchase
Class A Common Stock
2025-11-07$60.00/sh+6,867$412,020→ 246,939 total(indirect: See Footnotes) - Conversion
Series A-1 Convertible Preferred Stock
2025-11-07−1,352→ 0 total(indirect: See Footnotes)→ Common Stock (1,352 underlying) - Conversion
Series D Convertible Preferred Stock
2025-11-07−16,165→ 0 total(indirect: See Footnotes)→ Common Stock (16,165 underlying) - Conversion
Series A-1 Convertible Preferred Stock
2025-11-07−1,562→ 0 total(indirect: See Footnotes)→ Common Stock (1,562 underlying) - Award
Common Stock
2025-11-06+8,333→ 8,333 total - Purchase
Class A Common Stock
2025-11-07$60.00/sh+17,791$1,067,460→ 693,143 total(indirect: See Footnotes) - Conversion
Series C Convertible Preferred Stock
2025-11-07−91,003→ 0 total(indirect: See Footnotes)→ Common Stock (91,003 underlying) - Conversion
Common Stock
2025-11-07+152,440→ 152,440 total(indirect: See Footnotes) - Conversion
Common Stock
2025-11-07+240,072→ 240,072 total(indirect: See Footnotes) - Other
Common Stock
2025-11-07−8,333→ 0 total - Other
Class A Common Stock
2025-11-07+176,271→ 176,271 total(indirect: See Footnotes) - Other
Class A Common Stock
2025-11-07+240,072→ 240,072 total(indirect: See Footnotes) - Conversion
Series D Convertible Preferred Stock
2025-11-07−23,466→ 0 total(indirect: See Footnotes)→ Common Stock (23,466 underlying) - Conversion
Series C-1 Convertible Preferred Stock
2025-11-07−23,100→ 0 total(indirect: See Footnotes)→ Common Stock (23,100 underlying) - Conversion
Series A-1 Convertible Preferred Stock
2025-11-07−652→ 0 total(indirect: See Footnotes)→ Common Stock (652 underlying) - Conversion
Series C-1 Convertible Preferred Stock
2025-11-07−74,195→ 0 total(indirect: See Footnotes)→ Common Stock (74,195 underlying) - Conversion
Common Stock
2025-11-07+176,271→ 176,271 total(indirect: See Footnotes) - Conversion
Common Stock
2025-11-07+675,352→ 675,352 total(indirect: See Footnotes) - Other
Common Stock
2025-11-07−152,440→ 0 total(indirect: See Footnotes) - Other
Common Stock
2025-11-07−155,711→ 0 total(indirect: See Footnotes) - Other
Common Stock
2025-11-07−269,918→ 0 total(indirect: See Footnotes) - Other
Common Stock
2025-11-07−675,352→ 0 total(indirect: See Footnotes) - Other
Class A Common Stock
2025-11-07+8,333→ 8,333 total - Other
Class A Common Stock
2025-11-07+155,711→ 155,711 total(indirect: See Footnotes) - Other
Class A Common Stock
2025-11-07+675,352→ 675,352 total(indirect: See Footnotes) - Purchase
Class A Common Stock
2025-11-07$60.00/sh+3,462$207,720→ 179,733 total(indirect: See Footnotes) - Conversion
Series C-1 Convertible Preferred Stock
2025-11-07−16,747→ 0 total(indirect: See Footnotes)→ Common Stock (16,747 underlying) - Conversion
Series C Convertible Preferred Stock
2025-11-07−121,688→ 0 total(indirect: See Footnotes)→ Common Stock (121,688 underlying) - Conversion
Series C Convertible Preferred Stock
2025-11-07−505,570→ 0 total(indirect: See Footnotes)→ Common Stock (505,570 underlying) - Other
Common Stock
2025-11-07−240,072→ 0 total(indirect: See Footnotes) - Other
Common Stock
2025-11-07−277,508→ 0 total(indirect: See Footnotes) - Other
Class A Common Stock
2025-11-07+152,440→ 152,440 total(indirect: See Footnotes) - Other
Class A Common Stock
2025-11-07+269,918→ 269,918 total(indirect: See Footnotes) - Other
Class A Common Stock
2025-11-07+277,508→ 277,508 total(indirect: See Footnotes) - Conversion
Series C-1 Convertible Preferred Stock
2025-11-07−19,355→ 0 total(indirect: See Footnotes)→ Common Stock (19,355 underlying)
Footnotes (13)
- [F1]Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest over three years in equal annual installments on the anniversary of November 6, 2025, subject to the Reporting Person's continuous service to the Issuer through each such vesting date.
- [F10]The reported security is directly held by FCPR GF - Lumyna Private Equity World Fund.
- [F11]Adams Street Partners, LLC is the managing member of the general partner of each of Adams Street 2019 Direct Growth Equity Fund LP, Adams Street 2020 Direct Growth Equity Fund LP, Adams Street 2021 Direct Growth Equity Fund LP, Adams Street 2022 Direct Growth Equity Fund LP, Adams Street Growth Equity Fund VII LP, and Adams Street Private Equity Navigator Fund LLC (f/k/a Adams Street Global Private Markets Fund LP) (collectively, the U.S. Funds) and, as a result, may be deemed to beneficially own the shares held by the U.S. Funds. Furthermore, Adams Street Partners, LLC, is the Sous-Delegataire Financier of the Delegataire Financier of the management company of FCPR GF - Lumyna Private Equity World Fund (Lumyna and together with the U.S. Funds, the Funds) and, as a result, may be deemed to beneficially own the shares held by Lumyna.
- [F12](Continued from footnote 11) Thomas S. Bremner, Jeffrey T. Diehl, Brian Dudley, Elisha P. Gould, Robin Murray and Fred Wang, each of whom is a partner of Adams Street Partners, LLC (or a subsidiary thereof), may be deemed to have shared voting, investment and dispositive power over the shares held by the Funds. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
- [F13]Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Offering.
- [F2]The total represents shares received upon conversion of shares of Series A-1 Convertible Preferred Stock, Series C Convertible Preferred Stock, Series C-1 Convertible Preferred Stock and/or Series D Convertible Preferred Stock.
- [F3]The reported security converted into the Issuer's Common Stock on a one-for-one basis automatically immediately prior to the closing of the Issuer's initial public offering of Class A common stock (the "Offering") without payment of further consideration. The shares have no expiration date.
- [F4]The reported security is directly held by Adams Street 2019 Direct Growth Equity Fund LP.
- [F5]The reported security is directly held by Adams Street 2020 Direct Growth Equity Fund LP.
- [F6]The reported security is directly held by Adams Street 2021 Direct Growth Equity Fund LP.
- [F7]The reported security is directly held by Adams Street 2022 Direct Growth Equity Fund LP.
- [F8]The reported security is directly held by Adams Street Private Equity Navigator Fund LLC (f/k/a Adams Street Global Private Markets Fund LP).
- [F9]The reported security is directly held by Adams Street Growth Equity Fund VII LP.
Documents
Issuer
BillionToOne, Inc.
CIK 0002070849
Entity typeother
Related Parties
1- filerCIK 0002087538
Filing Metadata
- Form type
- 4
- Filed
- Nov 9, 7:00 PM ET
- Accepted
- Nov 10, 9:38 PM ET
- Size
- 116.9 KB