26 insiders reported 496 Form 4 transactions for BillionToOne, Inc. (BLLN) over the past 18 months (most recent 2026-07-06). Recent activity: Johnson Nancy JoAnn (See Remarks) Sell 801 shares, ten Bosch John Roderick (SVP of Laboratory Operations) Sell 1,416 shares, Sakakibara Shan Riku (Chief Product Officer) Buy 4,000 shares, Sakakibara Shan Riku (Chief Product Officer) Sell 4,000 shares, Sakakibara Shan Riku (Chief Product Officer) Sell 4,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-06 | Johnson Nancy JoAnn | See Remarks | Sell | 801 | $100,056 |
| 2026-07-01 | ten Bosch John Roderick | SVP of Laboratory Operations | Sell | 1,416 | $169,920 |
| 2026-06-26 | Sakakibara Shan Riku | Chief Product Officer | Buy | 4,000 | $34,600 |
| 2026-06-26 | Sakakibara Shan Riku | Chief Product Officer | Sell | 4,000 | $440,000 |
| 2026-06-26 | Sakakibara Shan Riku | Chief Product Officer | Sell | 4,000 | $440,000 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Sell | 2,889 | $299,544 |
| 2026-06-17 | ten Bosch John Roderick | See Remarks | Sell | 1,416 | $143,682 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Buy | 10,000 | $28,000 |
| 2026-06-17 | ten Bosch John Roderick | See Remarks | Sell | 1,416 | $143,682 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Sell | 1,704 | $171,034 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Sell | 2,361 | $239,765 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Sell | 2,816 | $289,411 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Buy | 10,000 | $28,000 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Sell | 230 | $24,029 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Sell | 600 | $59,245 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Sell | 1,000 | $100,053 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Sell | 2,461 | $249,473 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Sell | 2,978 | $305,539 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Sell | 2,398 | $248,502 |
| 2026-06-17 | Tsao David | Chief Technology Officer | Sell | 563 | $58,730 |
| 2026-06-12 | Pagano Anthony | Director | Buy | 3,017 | $0 |
| 2026-06-12 | Ileri Firat | Director | Buy | 3,017 | $0 |
| 2026-06-12 | Rai Akshay | Director | Buy | 3,017 | $0 |
| 2026-06-12 | Bremner Thomas S | Director | Buy | 3,017 | $0 |
| 2026-06-12 | KOLLURI KRISHNA KITTU | Director | Buy | 3,017 | $0 |
Source: SEC Form 4 filings · as of 2026-07-06