Stocks Health care BLLN
NASDAQ · Health careBillionToOne, Inc. (BLLN)
BillionToOne, Inc. brought in $436.9M of revenue over the twelve months to September 30, 2026. Net income was $49.4M, a net margin of 11.3%. Operating cash flow minus capital spending left $15.7M of free cash flow in fiscal 2025. At September 30, 2026 it held $561.5M in cash against $89M of debt. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on November 4, 2026.
Key facts about BillionToOne, Inc.
- Net worth
- BillionToOne, Inc. has a market value (market cap) of $5.4B at the latest share price, and shareholders' equity of $566.5M on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
- Revenue and profit
- In fiscal 2025 revenue was $305.1M (+100.0% year on year), with net income of $7.5M. Over the 12 months to September 30, 2026: revenue $436.9M, net income $49.4M.
- Cash flow
- In fiscal 2025 operations brought in $24.6M of cash; after $8.9M of capital spending, free cash flow was $15.7M.
- Latest report
- The latest periodic report (quarterly report, 10-Q) was filed with the SEC on November 4, 2026 and covers the period to September 30, 2026. Open on SEC EDGAR
- Next earnings report
- BillionToOne, Inc.'s next report is expected around January 6, 2027. That is an estimate from its filing rhythm, not a date the company has announced.
What BillionToOne, Inc. does
BillionToOne, Inc. is registered with the SEC under industry code SIC 8071 (Services-Medical Laboratories). Its shares trade on NASDAQ under the ticker BLLN.
Revenue and profit by year
Key figures
| Fiscal year | Revenue | Net income | Diluted EPS | Free cash flow |
|---|---|---|---|---|
| 2025 | $305.1M | $7.5M | $0.14 | $15.7M |
| 2025 | $152.6M | -$41.6M | -$4.12 | -$46.8M |
| 2023 | $71.7M | -$82.7M | -$8.45 | -$59.8M |
Earnings: every quarter and the next report date
Full financial statements: income, balance sheet and cash flow
Where BLLN ranks in Health care
Latest SEC filings
What BillionToOne, Inc. has filed recently, newest first. Each links to the original document on SEC EDGAR.
- November 9, 2026Activist stake changed SCHEDULE 13D/A
- November 4, 2026Quarterly report 10-Q · period to September 30, 2026Revenue rose 47% to $123M versus the same quarter last year; diluted EPS $0.32 versus $0.10.
- November 4, 2026
- August 5, 2026Quarterly report 10-Q · period to June 30, 2026Revenue rose 64% to $109.4M versus the same quarter last year; diluted EPS $0.15 versus -$0.02.
- August 5, 2026
- June 29, 2026
- June 16, 2026
- May 6, 2026Quarterly report 10-Q · period to March 31, 2026Revenue rose 84% to $108.4M versus the same quarter last year; diluted EPS $0.34 versus -$0.39.
- May 6, 2026
- April 21, 2026
What is BLLN worth? A DCF from its reported cash flow
Insider trades
What the people running BillionToOne, Inc. did with its shares, from the Form 4 filings they must send the SEC within two business days.
Insiders sold $26.7M worth of shares in the last 90 days and bought none on the open market. All of the selling was pre-planned under Rule 10b5-1 trading plans.
| Date | Insider | What | Shares | Value |
|---|---|---|---|---|
| November 2, 2026 | ten Bosch John RoderickSVP of Laboratory Operations | Soldpre-planned (10b5-1) | 1,417 | $160.4K |
| November 2, 2026 | ten Bosch John RoderickSVP of Laboratory Operations | Soldpre-planned (10b5-1) | 1,417 | $160.4K |
| November 2, 2026 | Tsao DavidChief Technology Officer, Director | Exercised options | 10,000 | $28K |
| November 2, 2026 | Tsao DavidChief Technology Officer, Director | Exercised options | 10,000 | $28K |
| November 2, 2026 | Tsao DavidChief Technology Officer, Director | Soldpre-planned (10b5-1) | 917 | $98.4K |
| November 2, 2026 | Tsao DavidChief Technology Officer, Director | Soldpre-planned (10b5-1) | 2,320 | $251.1K |
| November 2, 2026 | Tsao DavidChief Technology Officer, Director | Soldpre-planned (10b5-1) | 3,241 | $353.4K |
| November 2, 2026 | Tsao DavidChief Technology Officer, Director | Soldpre-planned (10b5-1) | 1,992 | $219.4K |
Who owns BLLN
Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.
5% holders
| Holder | Of class | Filed |
|---|---|---|
| Firat Ileri13D, may seek influence with 9 related filers | 18.57% | November 9, 2026 |
| Krishna Kittu Kolluri ("Kolluri")13G, passive with 7 related filers | 10.6% | February 13, 2026 |
| Oguzhan Atay13G, passive | 7.3% | February 17, 2026 |
| David Tsao13G, passive | 6.9% | February 17, 2026 |
Largest institutional holders
Insiders
13 insiders reported holding 3,183,822 shares in total, about $366M at the last price.
| Holder | Shares |
|---|---|
| Humming Bird Ventures Management NV10% owner | 2,580,8332,580,833 held indirectly |
| Sakakibara Shan RikuChief Product Officer | 196,500 |
| Atay OguzhanSee Remarks, Director | 141,167141,167 held indirectly |
| NeoTribe Ventures I, L.P.10% owner | 87,362 |
| Kolluri Krishna KittuDirector, 10% owner | 69,18957,839 held indirectly |
| Ileri FiratDirector, 10% owner | 40,331 |
| ten Bosch John RoderickSee Remarks | 16,551 |
| Rai AkshayDirector | 14,026 |
| Bremner Thomas SDirector | 11,350 |
| Lynch Thomas P.See Remarks | 10,700 |
Questions about BLLN
What does BillionToOne, Inc. do?
BillionToOne, Inc. is a company in the Health care sector, listed on NASDAQ as BLLN. Its shares trade on NASDAQ under the ticker BLLN.
What is BillionToOne, Inc.'s net worth?
BillionToOne, Inc. has a market value (market cap) of $5.4B at the latest share price, and shareholders' equity of $566.5M on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
Is BillionToOne, Inc. profitable?
Yes. Over the twelve months to September 30, 2026 it reported net income of $49.4M on revenue of $436.9M, a net margin of 11.3%.
How much revenue does BillionToOne, Inc. make?
Over the twelve months to September 30, 2026 BillionToOne, Inc. reported revenue of $436.9M.
When did BillionToOne, Inc. last report?
Its most recent periodic report is the quarterly report (10-Q) filed on November 4, 2026. It covers the period to September 30, 2026. Its newest filing of any kind is the activist stake changed from November 9, 2026.
When is BillionToOne, Inc.'s next earnings report?
BillionToOne, Inc.'s next report is expected around January 6, 2027. That is an estimate from its filing rhythm, not a date the company has announced.
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Where the numbers come from
Financial figures are the values BillionToOne, Inc. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.
Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.