# BillionToOne, Inc. (BLLN)

> Cited company facts from SEC filings, by Steadybase. Web page: https://steadybase.io/company/billiontoone-inc/ JSON: https://steadybase.io/company/billiontoone-inc.json Checked Nov 10, 2026. Latest filing read: Nov 4, 2026.

## Company

- Legal name: BillionToOne, Inc.
- Ticker: BLLN (Nasdaq)
- SEC CIK: 0002070849
- Industry: Services-Medical Laboratories (SIC 8071)
- Headquarters: Menlo Park, CA
- Fiscal year ends: December 31
- SEC filer category: Non-accelerated filer<br>Emerging growth company
- Website: billiontoone.com
- Investor relations: https://investors.billiontoone.com/
- LinkedIn: https://www.linkedin.com/company/billiontoone
- Next earnings date: Feb 2, 2027 (estimated from past 8-K timing)

## Key facts

- Revenue: $305.1M for the fiscal year ended Dec 31, 2025 (10-K filed Mar 11, 2026). Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/0002070849-26-000017-index.html
- Operating income: $16.0M for the fiscal year ended Dec 31, 2025 (10-K filed Mar 11, 2026). Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/0002070849-26-000017-index.html
- Net income: $7.5M for the fiscal year ended Dec 31, 2025 (10-K filed Mar 11, 2026). Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/0002070849-26-000017-index.html
- SG&A: $143.1M for the fiscal year ended Dec 31, 2025 (10-K filed Mar 11, 2026). Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/0002070849-26-000017-index.html
- Employees: 713 as of Dec 31, 2025, as reported in an SEC filing. Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/blln-20251231.htm
- Auditor: Pricewaterhousecoopers LLP, Florham Park, New Jersey, named in the latest 10-K. Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/blln-20251231.htm

## Business

BillionToOne is transforming healthcare by redefining molecular diagnostics. Our revolutionary single molecule next-generation sequencing (smNGS) platform achieves what was once thought impossible—detecting and precisely quantifying genetic targets with single-molecule sensitivity. At the heart of this technological breakthrough lies our patented Quantitative Counting Templates (QCTs), enabling measurements at the physical limit of detection—the single DNA molecule.

Source: Item 1. Business, https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/blln-20251231.htm

## Annual results

| Fiscal year ended | Revenue | Operating income | Net income | SG&A |
|---|---|---|---|---|
| Dec 31, 2025 | $305.1M | $16.0M | $7.5M | $143.1M |
| Dec 31, 2024 | $152.6M | -$47.1M | -$41.6M | $91.5M |
| Dec 31, 2023 | $71.7M | -$69.5M | -$82.7M | $64.4M |

Each figure comes from the annual report for that year. Filing links for every figure: https://steadybase.io/company/billiontoone-inc.json

## Officers and directors

- Oguzhan Atay, Chairman and CEO. LinkedIn: https://linkedin.com/in/oatay. Source: Form 4 filed Sep 30, 2026, https://www.sec.gov/Archives/edgar/data/2070849/000208854926000012/0002088549-26-000012-index.htm
- Ross Taylor, Chief Financial Officer. LinkedIn: https://linkedin.com/in/ross-taylor-000275b0. Source: 10-K filed Mar 11, 2026, https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/blln-20251231.htm
- David Tsao, Chief Technology Officer. LinkedIn: https://linkedin.com/in/davidtsao. Source: Form 4 filed Sep 28, 2026, https://www.sec.gov/Archives/edgar/data/2070849/000208712726000013/0002087127-26-000013-index.htm
- Shan Riku Sakakibara, Chief Product Officer. Source: Form 4 filed Sep 14, 2026, https://www.sec.gov/Archives/edgar/data/2070849/000208854726000010/0002088547-26-000010-index.htm
- John Lister, Chief Administrative Officer. Source: Form 4 filed Nov 12, 2025, https://www.sec.gov/Archives/edgar/data/2070849/000119312525278126/0001193125-25-278126-index.htm
- Bosch John Roderick ten, SVP of Laboratory Operations. Source: Form 4 filed Sep 28, 2026, https://www.sec.gov/Archives/edgar/data/2070849/000208712626000015/0002087126-26-000015-index.htm
- Akshay Rai, Director. Source: 10-K filed Mar 11, 2026, https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/blln-20251231.htm
- Anthony Pagano, Director. Source: 10-K filed Mar 11, 2026, https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/blln-20251231.htm
- Firat Ileri, Director. Source: 10-K filed Mar 11, 2026, https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/blln-20251231.htm
- Krishna Swaroop Kolluri, Director. Source: 10-K filed Mar 11, 2026, https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/blln-20251231.htm
- Thomas Bremner, Director. Source: 10-K filed Mar 11, 2026, https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/blln-20251231.htm

## Recent 8-K events

- Nov 4, 2026: Item 2.02, Results of operations and financial condition (earnings release); Item 9.01, Financial statements and exhibits. Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000078/blln-20261104.htm
- Aug 5, 2026: Item 2.02, Results of operations and financial condition (earnings release); Item 9.01, Financial statements and exhibits. Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000048/blln-20260805.htm
- Jun 29, 2026: Item 1.01, Entry into a material definitive agreement; Item 2.03, Creation of a direct financial obligation; Item 9.01, Financial statements and exhibits. Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000042/blln-20260623.htm
- Jun 16, 2026: Item 1.01, Entry into a material definitive agreement; Item 2.03, Creation of a direct financial obligation; Item 9.01, Financial statements and exhibits. Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000040/blln-20260610.htm
- May 6, 2026: Item 2.02, Results of operations and financial condition (earnings release); Item 9.01, Financial statements and exhibits. Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000029/blln-20260506.htm
- Mar 4, 2026: Item 2.02, Results of operations and financial condition (earnings release); Item 5.02, Departure or appointment of directors or officers; compensation; Item 9.01, Financial statements and exhibits. Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000013/blln-20260304.htm
- Jan 12, 2026: Item 2.02, Results of operations and financial condition (earnings release); Item 7.01, Regulation FD disclosure. Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000010/blln-20260112.htm
- Dec 9, 2025: Item 2.02, Results of operations and financial condition (earnings release); Item 5.02, Departure or appointment of directors or officers; compensation; Item 9.01, Financial statements and exhibits. Source: https://www.sec.gov/Archives/edgar/data/2070849/000162828025056077/blln-20251209.htm
- Nov 10, 2025: Item 5.03, Amendments to articles or bylaws; change in fiscal year; Item 8.01, Other events; Item 9.01, Financial statements and exhibits. Source: https://www.sec.gov/Archives/edgar/data/2070849/000119312525274195/d59194d8k.htm

## Insider trades (Form 4)

- Nov 2, 2026: Oguzhan Atay (Chairman and CEO) sold 30,335 shares, about $3.3M. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208854926000019/0002088549-26-000019-index.htm
- Nov 2, 2026: David Tsao (Chief Technology Officer) sold 20,000 shares, about $2.2M. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208712726000017/0002087127-26-000017-index.htm
- Nov 2, 2026: Bosch John Roderick ten (SVP of Laboratory Operations) sold 2,834 shares, about $320,724. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208712626000020/0002087126-26-000020-index.htm
- Oct 28, 2026: Oguzhan Atay (Chairman and CEO) sold 11,000 shares, about $1.3M. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208854926000017/0002088549-26-000017-index.htm
- Oct 15, 2026: Oguzhan Atay (Chairman and CEO) sold 11,000 shares, about $1.1M. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208854926000015/0002088549-26-000015-index.htm
- Oct 12, 2026: Oguzhan Atay (Chairman and CEO) sold 19,334 shares, about $1.8M. Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000072/0002070849-26-000072-index.htm
- Oct 5, 2026: David Tsao (Chief Technology Officer) sold 20,000 shares, about $2.2M. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208712726000015/0002087127-26-000015-index.htm
- Oct 5, 2026: Bosch John Roderick ten (SVP of Laboratory Operations) sold 2,834 shares, about $297,995. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208712626000018/0002087126-26-000018-index.htm
- Sep 28, 2026: Oguzhan Atay (Chairman and CEO) sold 10,999 shares, about $1.3M. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208854926000012/0002088549-26-000012-index.htm
- Sep 24, 2026: David Tsao (Chief Technology Officer) sold 3,333 shares, about $416,625. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208712726000013/0002087127-26-000013-index.htm
- Sep 24, 2026: Bosch John Roderick ten (SVP of Laboratory Operations) sold 1,416 shares, about $169,920. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208712626000015/0002087126-26-000015-index.htm
- Sep 21, 2026: Bosch John Roderick ten (SVP of Laboratory Operations) sold 1,416 shares, about $150,960. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208712626000013/0002087126-26-000013-index.htm
- Sep 17, 2026: Thomas P. Lynch (See Remarks) sold 35,112 shares, about $3.9M. Source: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000069/0002070849-26-000069-index.htm
- Sep 14, 2026: Oguzhan Atay (Chairman and CEO) sold 30,331 shares, about $3.0M. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208854926000010/0002088549-26-000010-index.htm
- Sep 9, 2026: David Tsao (Chief Technology Officer) sold 20,000 shares, about $2.0M. Source: https://www.sec.gov/Archives/edgar/data/2070849/000208712726000011/0002087127-26-000011-index.htm

## Latest filings

- 8-K filed Aug 5, 2026: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000048/blln-20260805.htm
- 10-K filed Mar 11, 2026: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000017/blln-20251231.htm
- 10-Q filed Aug 5, 2026: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000050/blln-20260630.htm
- DEF 14A filed Apr 21, 2026: https://www.sec.gov/Archives/edgar/data/2070849/000207084926000024/blln-20260421.htm

## About this data

SEC EDGAR filings, read by Steadybase. Every value links to the filing it came from.
Steadybase covers US-headquartered public companies that file with the SEC. API and MCP access: https://steadybase.io/docs/