CIK 0002070849 · Non-accelerated filer<br>Emerging growth company
BillionToOne, Inc.
Sign in to watch- 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.
Who's trading
90 days
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-10-12 | Atay Oguzhan Chairman and CEO | Option exercise · Stock Option (right to buy) 10b5-1 | −16,667 | $2.80 | $47K | 476,962 |
| 2026-10-08 | Lynch Thomas P. See Remarks | Option exercise | +8,000 | $8.65 | $69K | 8,700 |
| 2026-10-08 | Lynch Thomas P. See Remarks | Option exercise · Stock Option (right to buy) | −8,000 | $8.65 | $69K | 40,974 |
| 2026-10-05 | Tsao David Chief Technology Officer | Option exercise 10b5-1 | +10,000 | $2.80 | $28K | 11,000 |
| 2026-10-05 | Tsao David Chief Technology Officer | Option exercise 10b5-1 | +10,000 | $2.80 | $28K | 21,000 |
| 2026-10-05 | Tsao David Chief Technology Officer | Sale 10b5-1 | −866 | $105.90 | $92K | 20,134 |
| 2026-10-05 | Tsao David Chief Technology Officer | Sale 10b5-1 | −1,909 | $107.20 | $205K | 18,225 |
| 2026-10-05 | Tsao David Chief Technology Officer | Sale 10b5-1 | −4,284 | $108.39 | $464K | 13,941 |
| 2026-10-05 | Tsao David Chief Technology Officer | Sale 10b5-1 | −2,921 | $109.00 | $318K | 11,020 |
| 2026-10-05 | Tsao David Chief Technology Officer | Sale 10b5-1 | −20 | $110.08 | $2K | 11,000 |
| 2026-10-05 | Tsao David Chief Technology Officer | Sale 10b5-1 | −555 | $105.56 | $59K | 10,445 |
| 2026-10-05 | Tsao David Chief Technology Officer | Sale 10b5-1 | −400 | $106.10 | $42K | 10,045 |
| 2026-10-05 | Tsao David Chief Technology Officer | Sale 10b5-1 | −2,200 | $107.47 | $236K | 7,845 |
| 2026-10-05 | Tsao David Chief Technology Officer | Sale 10b5-1 | −4,916 | $108.53 | $534K | 2,929 |
| 2026-10-05 | Tsao David Chief Technology Officer | Sale 10b5-1 | −1,829 | $109.14 | $200K | 1,100 |
| 2026-10-05 | Tsao David Chief Technology Officer | Sale 10b5-1 | −100 | $110.09 | $11K | 1,000 |
| 2026-10-05 | Tsao David Chief Technology Officer | Option exercise · Stock Option (right to buy) 10b5-1 | −10,000 | $2.80 | $28K | 546,667 |
| 2026-10-05 | Tsao David Chief Technology Officer | Option exercise · Stock Option (right to buy) 10b5-1 | −10,000 | $2.80 | $28K | 536,667 |
| 2026-10-05 | ten Bosch John Roderick SVP of Laboratory Operations | Sale 10b5-1 | −1,417 | $105.15 | $149K | 20,802 |
| 2026-10-05 | ten Bosch John Roderick SVP of Laboratory Operations | Sale 10b5-1 | −1,417 | $105.15 | $149K | 19,385 |
Page 5 of 32 · 639 trades