Company: BLLN
Filing Date: 2025-10-07
Form Type: S-1
Source: 0001193125-25-233697
Chunk: 291

Company: BillionToOne, Inc.
Filing Date: 2025-10-07
Form: S-1
Chunk 291
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 common stock held by Adams Street 2022 Direct Growth Equity Fund LP; (v) 240,072 shares of                   
 Class A common stock held by; (vi) 675,352 shares of Class A common stock held by 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) (vi) 227,508        
 shares of Class A common stock held by FCPR GF—Lumyna Private Equity World Fund. 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, the Sous- Délégataire Financier of the                               
 Délégataire 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.                      
 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 and investment power over the 
 shares held by the Funds. The address for each entity referenced above is 1 North Wacker Drive, Suite 2200, Chicago, IL 60606-2807.                                                                                                                  |

| (6) |     | Consists of (i) the shares of Class A common stock referenced in footnote 10 and (ii) 28,981 shares of Class A common stock held directly by Mr. Ileri. |

| (7) |     | Consists of the shares of Class A common stock referenced in footnote 13. |

| (8) |     | Consists of (i) 2,676 shares of Class A common stock held directly by Mr. Rai and (ii)