Bremner Thomas S bought BillionToOne, Inc. ($BLLN) shares on the open market six times in the last year, for a total of $2.5 million. His most recent purchase was on November 7, 2025. These buys rank him 264th among 4,983 insiders by purchase value, well above the average of $1.46 million across 3.29 transactions. He made no open market sales in the period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov. 6, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | A | Common Stock | 8333 | $0.00 | 8,333.0000 | 0 | 9999.99% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Common Stock | 152440 | $0.00 | 152,440.0000 | 0 | 9999.99% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Common Stock | 155711 | $0.00 | 155,711.0000 | 0 | 9999.99% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Common Stock | 176271 | $0.00 | 176,271.0000 | 0 | 9999.99% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Common Stock | 269918 | $0.00 | 269,918.0000 | 0 | 9999.99% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Common Stock | 240072 | $0.00 | 240,072.0000 | 0 | 9999.99% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Common Stock | 675352 | $0.00 | 675,352.0000 | 0 | 9999.99% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Common Stock | 277508 | $0.00 | 277,508.0000 | 0 | 9999.99% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Common Stock | 8333 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Common Stock | 152440 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Common Stock | 155711 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Common Stock | 176271 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Common Stock | 269918 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Common Stock | 240072 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Common Stock | 675352 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Common Stock | 277508 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Class A Common Stock | 8333 | $0.00 | 701,476.0000 | 0 | 1.20% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Class A Common Stock | 152440 | $0.00 | 160,773.0000 | 0 | 1829.35% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Class A Common Stock | 155711 | $0.00 | 164,044.0000 | 0 | 1868.61% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Class A Common Stock | 176271 | $0.00 | 184,604.0000 | 0 | 2115.34% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Class A Common Stock | 269918 | $0.00 | 278,251.0000 | 0 | 3239.15% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Class A Common Stock | 240072 | $0.00 | 248,405.0000 | 0 | 2880.98% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Class A Common Stock | 675352 | $0.00 | 683,685.0000 | 0 | 8104.55% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | J | Class A Common Stock | 277508 | $0.00 | 285,841.0000 | 0 | 3330.23% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | P | Class A Common Stock | 4016 | $60.00 | 164,789.0000 | 0 | 2.50% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | P | Class A Common Stock | 4084 | $60.00 | 168,128.0000 | 0 | 2.49% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | P | Class A Common Stock | 3462 | $60.00 | 188,066.0000 | 0 | 1.88% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | P | Class A Common Stock | 5446 | $60.00 | 283,697.0000 | 0 | 1.96% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | P | Class A Common Stock | 6867 | $60.00 | 255,272.0000 | 0 | 2.76% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | P | Class A Common Stock | 17791 | $60.00 | 701,476.0000 | 0 | 2.60% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series A-1 Convertible Preferred Stock | 1352 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C Convertible Preferred Stock | 114117 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C-1 Convertible Preferred Stock | 16747 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series D Convertible Preferred Stock | 20224 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C Convertible Preferred Stock | 121688 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C-1 Convertible Preferred Stock | 17858 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series D Convertible Preferred Stock | 16165 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series A-1 Convertible Preferred Stock | 1562 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C Convertible Preferred Stock | 131888 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C-1 Convertible Preferred Stock | 19355 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series D Convertible Preferred Stock | 23466 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series A-1 Convertible Preferred Stock | 1864 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C Convertible Preferred Stock | 157404 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C-1 Convertible Preferred Stock | 23100 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series D Convertible Preferred Stock | 87550 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series A-1 Convertible Preferred Stock | 652 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C Convertible Preferred Stock | 55091 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C-1 Convertible Preferred Stock | 8084 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series D Convertible Preferred Stock | 176245 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series A-1 Convertible Preferred Stock | 5988 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C Convertible Preferred Stock | 505570 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C-1 Convertible Preferred Stock | 74195 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series D Convertible Preferred Stock | 89599 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series A-1 Convertible Preferred Stock | 1078 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C Convertible Preferred Stock | 91003 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series C-1 Convertible Preferred Stock | 13355 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Nov. 7, 2025 | BillionToOne, Inc. | $BLLN | Bremner Thomas S | Not found | C | Series D Convertible Preferred Stock | 122072 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |