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 |
|---|---|---|---|---|---|---|
| 2026-09-09 | Tsao David Chief Technology Officer | Option exercise · Stock Option (right to buy) 10b5-1 | −10,000 | $2.80 | $28K | 570,000 |
| 2026-09-09 | Tsao David Chief Technology Officer | Option exercise · Stock Option (right to buy) 10b5-1 | −10,000 | $2.80 | $28K | 560,000 |
| 2026-09-09 | ten Bosch John Roderick SVP of Laboratory Operations | Sale 10b5-1 | −1,416 | $97.54 | $138K | 25,051 |
| 2026-09-09 | Atay Oguzhan Chairman and CEO | Gift | −20,000 | 0 | ||
| 2026-09-08 | Lynch Thomas P. See Remarks | Option exercise 10b5-1 | +11,042 | $8.65 | $96K | 11,742 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Option exercise 10b5-1 | +3,969 | $11.55 | $46K | 15,711 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Option exercise 10b5-1 | +1,663 | $17.12 | $28K | 17,374 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Option exercise 10b5-1 | +3,326 | $30.78 | $102K | 20,700 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −38 | $96.47 | $4K | 20,662 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −1,944 | $98.97 | $192K | 18,718 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −8,285 | $100.12 | $830K | 10,433 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −775 | $100.83 | $78K | 9,658 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −614 | $99.00 | $61K | 9,044 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −2,997 | $100.11 | $300K | 6,047 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −358 | $100.82 | $36K | 5,689 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −385 | $99.22 | $38K | 5,304 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −1,131 | $100.33 | $113K | 4,173 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −147 | $101.41 | $15K | 4,026 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −576 | $98.89 | $57K | 3,450 |
| 2026-09-08 | Lynch Thomas P. See Remarks | Sale 10b5-1 | −2,518 | $100.20 | $252K | 932 |
Page 8 of 32 · 639 trades