BillionToOne, Inc.
BLLN- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0002070849
In the last 90 days, BillionToOne, Inc. insiders filed 0 open-market purchases and 19 sales; 155 institutions reported holding it in 13F filings for Q2 2026, worth $1.82B in total; no superinvestor holds it.
Key figures
- Market capNo recent share count in SEC filings
- –
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $26.7M in total
- 19
- 13F holdersQ2 2026, +65 vs. previous quarter
- 155
- 13F valueReported value at the end of Q2 2026
- $1.82B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $305.1M
- No comparable prior period
- Net income, FY2025
- $7.45M
- No comparable prior period
- Free cash flow, FY2025
- $15.7M
- No comparable prior period
- Revenue, Q3 FY2026
- $123.0M
- +47.2% year over year
Revenue flow, FY2025
Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 2.97M
- Shares sold short
- Change
- +38.1K
- +1.3% vs. previous
- Days to cover
- 6.69
- At average daily volume
Superinvestors holding BLLN, Q2 2026
Go to the superinvestors tabNo superinvestor reported holding BLLN at the end of Q2 2026.
Latest insider trades
See all insider tradesOpen-market purchases and sales by BillionToOne, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Nov 4, 2026 (view filing)8:42 PM ET | Nov 2 | 2 days | ten Bosch John RoderickSVP of Laboratory Operations | SSaleClass A Common Stock | −2.83K | $113.17 | −$320.7K | −14.6%16.6K after | 2 lots10b5-1 |
| Nov 4, 2026 (view filing)8:42 PM ET | Nov 2 | 2 days | Atay OguzhanChairman and CEO | SSaleClass A Common Stock | −25.0K | $109.24 | −$2.73M | −100.0%0 after | 12 lots10b5-1 |
| Nov 4, 2026 (view filing)8:42 PM ET | Nov 2 | 2 days | Atay OguzhanChairman and CEO | SSaleClass A Common Stock | −5.33K | $113.17 | −$603.6K | −3.6%141.2K after | 2 lots10b5-1 |
| Nov 4, 2026 (view filing)8:42 PM ET | Nov 2 | 2 days | Tsao DavidChief Technology Officer | SSaleClass A Common Stock | −20.0K | $109.24 | −$2.18M | −95.2%1.00K after | 14 lots10b5-1 |
| Oct 30, 2026 (view filing)6:54 PM ET | Oct 28 | 2 days | Atay OguzhanChairman and CEO | SSaleClass A Common Stock | −8.33K | $118.00 | −$983.3K | −100.0%0 after | 10b5-1 |
| Oct 30, 2026 (view filing)6:54 PM ET | Oct 28 | 2 days | Atay OguzhanChairman and CEO | SSaleClass A Common Stock | −2.67K | $118.00 | −$314.7K | −1.8%146.5K after | 10b5-1 |
| Oct 16, 2026 (view filing)7:00 PM ET | Oct 14-15 | 2 days | Atay OguzhanChairman and CEO | SSaleClass A Common Stock | −8.33K | $99.51 | −$829.2K | −100.0%0 after | 7 lots10b5-1 |
| Oct 16, 2026 (view filing)7:00 PM ET | Oct 14 | 2 days | Atay OguzhanChairman and CEO | SSaleClass A Common Stock | −2.67K | $98.00 | −$261.4K | −1.8%149.2K after | 10b5-1 |
| Oct 14, 2026 (view filing)6:10 PM ET | Oct 12 | 2 days | Atay OguzhanChairman and CEO | SSaleClass A Common Stock | −16.7K | $93.79 | −$1.56M | −100.0%0 after | 5 lots10b5-1 |
| Oct 14, 2026 (view filing)6:10 PM ET | Oct 12 | 2 days | Atay OguzhanChairman and CEO | SSaleClass A Common Stock | −2.67K | $97.61 | −$260.3K | −1.7%151.8K after | 10b5-1 |
Top 10 13F holders, Q2 2026
See all 155 holdersThe largest institutional positions in BillionToOne, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Adams Street Partners LLC | 1,711,430 | $205.3M | 46.39% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 1,010,322 | $121.2M | 0.01% | +272,804+37.0% | Added |
| Baillie Gifford & Co | 901,420 | $108.2M | 0.10% | −358,573−28.5% | Reduced |
| Vanguard Portfolio Management LLC | 840,970 | $100.9M | 0.00% | +689,757+456.1% | Added |
| Invesco Ltd. | 835,614 | $100.3M | 0.01% | +429,102+105.6% | Added |
| Vanguard Capital Management LLC | 799,468 | $95.9M | 0.00% | +617,005+338.2% | Added |
| Neuberger Berman Group LLC | 764,215 | $91.7M | 0.06% | +55,001+7.8% | Added |
| Bamco Inc | 742,093 | $89.0M | 0.13% | +608+0.1% | Added |
| Wasatch Advisors Inc | 518,084 | $62.2M | 0.41% | +148,446+40.2% | Added |
| Millennium Management LLC | 425,032 | $51.0M | 0.03% | +425,032 | New |
Holders of 5% or more of BLLN
See all 4 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of BillionToOne, Inc..
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Hummingbird Ventures Management NV | 13D/A | 18.57%8.03M shares | −1.03 ppfrom 19.60% | Jan 20, 20262 filings | Nov 9, 2026 | SEC |
| NeoTribe Ventures I, L.P. | 13G | 10.60%4.36M shares | New | Feb 13, 20261 filing | Feb 13, 2026 | SEC |
| Atay Oguzhan | 13G | 7.30%3.21M shares | New | Feb 17, 20261 filing | Feb 17, 2026 | SEC |
| Tsao David | 13G | 6.90%3.04M shares | New | Feb 17, 20261 filing | Feb 17, 2026 | SEC |