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 21 sales; 155 institutions reported holding it in 13F filings for Q2 2026, worth $1.82B in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $34.9M in total
- 21
- 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
Superinvestors holding BLLN, Q2 2026
No superinvestor reported holding BLLN at the end of Q2 2026.
Latest insider trades
Open-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 |
|---|---|---|---|---|---|---|---|---|---|
| Sep 23, 2026 (view filing)5:50 PM ET | Sep 21 | 2 days | ten Bosch John RoderickSVP of Laboratory Operations | SSaleClass A Common Stock | −1.42K | $106.61 | −$151.0K | −5.7%23.6K after | 10b5-1 |
| Sep 21, 2026 (view filing)7:00 PM ET | Sep 17 | 4 days | Lynch Thomas P.See Remarks | SSaleClass A Common Stock | −35.1K | $110.33 | −$3.87M | −98.0%700 after | 4 lots10b5-1 |
| Sep 16, 2026 (view filing)6:43 PM ET | Sep 14 | 2 days | Atay OguzhanChairman and CEO | SSaleClass A Common Stock | −25.0K | $100.32 | −$2.51M | −100.0%0 after | 8 lots10b5-1 |
| Sep 16, 2026 (view filing)6:43 PM ET | Sep 14 | 2 days | Atay OguzhanChairman and CEO | SSaleClass A Common Stock | −5.33K | $98.00 | −$522.5K | −3.3%157.2K after | 2 lots10b5-1 |
| Sep 11, 2026 (view filing)6:01 PM ET | Sep 9 | 2 days | ten Bosch John RoderickSVP of Laboratory Operations | SSaleClass A Common Stock | −1.42K | $97.54 | −$138.1K | −5.4%25.1K after | 10b5-1 |
| Sep 11, 2026 (view filing)6:01 PM ET | Sep 9 | 2 days | Tsao DavidChief Technology Officer | SSaleClass A Common Stock | −20.0K | $98.77 | −$1.98M | −95.2%1.00K after | 2 lots10b5-1 |
| Sep 10, 2026 (view filing)7:44 PM ET | Sep 8 | 2 days | Lynch Thomas P.See Remarks | SSaleClass A Common Stock | −20.0K | $99.99 | −$2.00M | −96.6%700 after | 13 lots10b5-1 |
| Aug 27, 2026 (view filing)8:19 PM ET | Aug 25 | 2 days | Tsao DavidChief Technology Officer | SSaleClass A Common Stock | −10.0K | $100.00 | −$1.00M | −90.9%1.00K after | 10b5-1 |
| Aug 27, 2026 (view filing)8:19 PM ET | Aug 25 | 2 days | ten Bosch John RoderickSVP of Laboratory Operations | SSaleClass A Common Stock | −1.42K | $100.00 | −$141.7K | −5.1%26.5K after | 10b5-1 |
| Aug 12, 2026 (view filing)6:55 PM ET | Aug 10 | 2 days | ten Bosch John RoderickSVP of Laboratory Operations | SSaleClass A Common Stock | −1.42K | $92.86 | −$131.6K | −4.8%27.9K after | 10b5-1 |
Top 10 13F holders, Q2 2026
The 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 |