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CIK 0002070849 · Non-accelerated filer<br>Emerging growth company

BillionToOne, Inc.

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Ticker
BLLN
Exchange
Nasdaq
Industry
Services-Medical Laboratories
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
811082020
Phone
650-460-2551
Business address
1035 O'BRIEN DRIVE, MENLO PARK, CA
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$26,737,121
in 19 filings, $26.7M under 10b5-1 plans

Net −$26,737,121. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Atay Oguzhan −$11.9M Chairman and CEO sold 44% of stake
  2. Tsao David −$7.7M Chief Technology Officer sold 99% of stake
  3. Lynch Thomas P. −$5.9M See Remarks sold 99% of stake
  4. ten Bosch John Roderick −$1.2M SVP of Laboratory Operations sold 41% of stake
Date Insider Transaction Shares Price Value Owned after
2025-11-07 Bremner Thomas S Director Conversion · Series C Convertible Preferred Stock −131,888 0
2025-11-07 Bremner Thomas S Director Conversion · Series C-1 Convertible Preferred Stock −19,355 0
2025-11-07 Bremner Thomas S Director Conversion · Series D Convertible Preferred Stock −23,466 0
2025-11-07 Bremner Thomas S Director Conversion · Series A-1 Convertible Preferred Stock −1,864 0
2025-11-07 Bremner Thomas S Director Conversion · Series C Convertible Preferred Stock −157,404 0
2025-11-07 Bremner Thomas S Director Conversion · Series C-1 Convertible Preferred Stock −23,100 0
2025-11-07 Bremner Thomas S Director Conversion · Series D Convertible Preferred Stock −87,550 0
2025-11-07 Bremner Thomas S Director Conversion · Series A-1 Convertible Preferred Stock −652 0
2025-11-07 Bremner Thomas S Director Conversion · Series C Convertible Preferred Stock −55,091 0
2025-11-07 Bremner Thomas S Director Conversion · Series C-1 Convertible Preferred Stock −8,084 0
2025-11-07 Bremner Thomas S Director Conversion · Series D Convertible Preferred Stock −176,245 0
2025-11-07 Bremner Thomas S Director Conversion · Series A-1 Convertible Preferred Stock −5,988 0
2025-11-07 Bremner Thomas S Director Conversion · Series C Convertible Preferred Stock −505,570 0
2025-11-07 Bremner Thomas S Director Conversion · Series C-1 Convertible Preferred Stock −74,195 0
2025-11-07 Bremner Thomas S Director Conversion · Series D Convertible Preferred Stock −89,599 0
2025-11-07 Bremner Thomas S Director Conversion · Series A-1 Convertible Preferred Stock −1,078 0
2025-11-07 Bremner Thomas S Director Conversion · Series C Convertible Preferred Stock −91,003 0
2025-11-07 Bremner Thomas S Director Conversion · Series C-1 Convertible Preferred Stock −13,355 0
2025-11-07 Bremner Thomas S Director Conversion · Series D Convertible Preferred Stock −122,072 0
2025-11-07 NeoTribe Ventures I, L.P. 10% owner Conversion +1,177,800 1,297,799

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