BillionToOne, Inc. (BLLN)
Nasdaq: BLLN · Services-Medical Laboratories · Menlo Park, CA · filing with the SEC since 2025
Who runs BillionToOne, Inc.
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedChief executive, as filed
Atay Oguzhan
Chairman and CEO. First filing Nov 2025, latest Nov 4, 2026, 11 filings in all.
Officers reporting now
8
of 13 people with a filing in the last fifteen months
Directors reporting now
5
13 people on the record since 2025
Officerssales are open-market, Nov 12, 2025 to Nov 12, 2026
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Atay Oguzhan | Chairman and CEO | Nov 2025 | Nov 4, 2026 | 108 · $30.5M |
| Tsao David | Chief Technology Officer | Nov 2025 | Nov 4, 2026 | 51 · $13.2M |
| Ten Bosch John Roderick | SVP of Laboratory Operations | Nov 2025 | Nov 4, 2026 | 15 · $2.3M |
| Lynch Thomas P. | See Remarks | Nov 2025 | Oct 19, 2026 | 17 · $5.9M |
| Sakakibara Shan Riku | Chief Product Officer | Nov 2025 | Sep 14, 2026 | 10 · $3.2M |
| Johnson Nancy Joann | Senior Vice President of Sales and Commercial Operations | Nov 2025 | Jul 20, 2026 | 12 · $3.3M |
| Taylor Ross | Chief Financial Officer | Nov 2025 | Nov 12, 2025 | none |
| Lister John | Chief Administrative Officer | Nov 2025 | Nov 12, 2025 | none |
Directorssales are open-market, Nov 12, 2025 to Nov 12, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Kolluri Krishna Kittu | director | Nov 2025 | Nov 12, 2026 | none |
| Ileri Firat | director | Nov 2025 | Nov 10, 2026 | none |
| Bremner Thomas S | director | Nov 2025 | Jun 12, 2026 | none |
| Pagano Anthony | director | Jan 2026 | Jun 12, 2026 | none |
| Rai Akshay | director | Nov 2025 | Jun 12, 2026 | none |
Owners of more than 10% of a classsales are open-market, Nov 12, 2025 to Nov 12, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Neotribe Associates I, L.P. | 10% owner | Nov 2025 | Jun 11, 2026 | none |
| Neotribe Ignite Fund I, L.P. | 10% owner | Nov 2025 | Jun 11, 2026 | none |
| Neotribe Ignite Partners I, LLC | 10% owner | Nov 2025 | Jun 11, 2026 | none |
| Neotribe Partners I, LLC | 10% owner | Nov 2025 | Jun 11, 2026 | none |
| Neotribe Partners Spv I Bto, LLC | 10% owner | Nov 2025 | Jun 11, 2026 | none |
| Neotribe Spv I Bto, LLC | 10% owner | Nov 2025 | Jun 11, 2026 | none |
| Neotribe Ventures I, L.P. | 10% owner | Nov 2025 | Jun 11, 2026 | none |
| Decoster Lukas | 10% owner | Nov 2025 | Jan 20, 2026 | none |
| Hb&q NV (Hb&q Compartment III) | 10% owner | Nov 2025 | Jan 20, 2026 | none |
| Humming Bird Ventures Management NV | 10% owner | Nov 2025 | Jan 20, 2026 | none |
| Hummingbird Collective Commv | 10% owner | Nov 2025 | Jan 20, 2026 | none |
| Hummingbird Dragons Commv | 10% owner | Nov 2025 | Jan 20, 2026 | none |
| Hummingbird Opportunity Fund II Commv | 10% owner | Nov 2025 | Jan 20, 2026 | none |
| Hummingbird Ventures III Commv | 10% owner | Nov 2025 | Jan 20, 2026 | none |
| Van Den Brande Barend | 10% owner | Nov 2025 | Jan 20, 2026 | none |
A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.