BillionToOne Inc.
Last updated September 27, 2026
Organization details
- Legal name
- BillionToOne Inc.
- Ownership
- Public
- Status
- Active
- SIC code
- 8071 — Services-Medical Laboratories
- Jurisdiction of incorporation
- Delaware
- Headquarters city
- Menlo Park
- Headquarters state / province
- California
- Headquarters country
- United States
- Fiscal year end
- December
- Ticker symbol
- BLLN
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0002070849
- EIN
- 81-1082020
Board of directors
-
Akshay Rai · DirectorSince 2025
-
Anthony Pagano · DirectorSince 2026
-
David Tsao · Director · Chief Technology OfficerSince 2025
-
Firat Ileri · DirectorSince 2025
-
Krishna Kittu Kolluri · DirectorSince 2025
-
Oguzhan Atay · Director · Chairman and CEOSince 2025
-
Thomas S. Bremner · DirectorSince 2025
Chief executives
Oguzhan Atay
· Chairman and CEO
Dates unknown
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $3,177,960
- 11 purchases by 6 insiders
- Sold, last 12 months
- $44,051,515
- 150 sales by 6 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 21, 2026 | ten Bosch John Roderick Officer (SVP of Laboratory Operations) | Open-market sale | −1,416 | $106.61 | $150,960 |
| Sep 17, 2026 | Lynch Thomas P. Officer (See Remarks) | Option exercise | +19,384 | $8.65 | $167,672 |
| Sep 17, 2026 | Lynch Thomas P. Officer (See Remarks) | Option exercise | +6,968 | $11.55 | $80,480 |
| Sep 17, 2026 | Lynch Thomas P. Officer (See Remarks) | Option exercise | +2,920 | $17.12 | $49,990 |
| Sep 17, 2026 | Lynch Thomas P. Officer (See Remarks) | Option exercise | +5,840 | $30.78 | $179,755 |
| Sep 17, 2026 | Lynch Thomas P. Officer (See Remarks) | Open-market sale | −19,384 | $110.36 | $2,139,193 |
| Sep 17, 2026 | Lynch Thomas P. Officer (See Remarks) | Open-market sale | −6,968 | $110.30 | $768,561 |
| Sep 17, 2026 | Lynch Thomas P. Officer (See Remarks) | Open-market sale | −2,920 | $110.31 | $322,100 |
| Sep 17, 2026 | Lynch Thomas P. Officer (See Remarks) | Open-market sale | −5,840 | $110.29 | $644,112 |
| Sep 14, 2026 | Oguzhan Atay Director, Officer (Chairman and CEO) | Option exercise | +16,666 | $2.80 | $46,665 |
| Sep 14, 2026 | Oguzhan Atay Director, Officer (Chairman and CEO) | Option exercise | +8,333 | $2.80 | $23,332 |
| Sep 14, 2026 | Oguzhan Atay Director, Officer (Chairman and CEO) | Open-market sale | −4,465 | $98.63 | $440,389 |
| Sep 14, 2026 | Oguzhan Atay Director, Officer (Chairman and CEO) | Open-market sale | −2,456 | $99.57 | $244,547 |
| Sep 14, 2026 | Oguzhan Atay Director, Officer (Chairman and CEO) | Open-market sale | −2,531 | $100.58 | $254,570 |
| Sep 14, 2026 | Oguzhan Atay Director, Officer (Chairman and CEO) | Open-market sale | −7,214 | $101.44 | $731,793 |
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