Form 4 filed by Tsao David
Tsao David filed this Form 4 on BLLN (BillionToOne, Inc.) with 15 transaction rows and 0 holding rows, accepted by EDGAR 2026-10-07 23:56:35 UTC.
- Accession
- 0002087127-26-000015
- Filer
- CIK 2087127
- Filed
- 2026-10-07
- Accepted by EDGAR
- Ingested
- Source
- EDGAR live feed
Issuer and reporting owners
Issuer: BLLN · BillionToOne, Inc. (CIK 2070849)
- Tsao David director, officer (Chief Technology Officer)
Rows
| Security | Date | Code | Shares | Price | Owned after | Ownership |
|---|---|---|---|---|---|---|
| Class A Common Stock | 2026-10-05 | M exercised | +10,000 | $2.8 | 11,000 | D |
| Class A Common Stock | 2026-10-05 | M exercised | +10,000 | $2.8 | 21,000 | D |
| Class A Common Stock | 2026-10-05 | S sold | -866 | $105.9004 | 20,134 | D |
| Class A Common Stock | 2026-10-05 | S sold | -1,909 | $107.195 | 18,225 | D |
| Class A Common Stock | 2026-10-05 | S sold | -4,284 | $108.393 | 13,941 | D |
| Class A Common Stock | 2026-10-05 | S sold | -2,921 | $109.0031 | 11,020 | D |
| Class A Common Stock | 2026-10-05 | S sold | -20 | $110.08 | 11,000 | D |
| Class A Common Stock | 2026-10-05 | S sold | -555 | $105.5587 | 10,445 | D |
| Class A Common Stock | 2026-10-05 | S sold | -400 | $106.1038 | 10,045 | D |
| Class A Common Stock | 2026-10-05 | S sold | -2,200 | $107.4705 | 7,845 | D |
| Class A Common Stock | 2026-10-05 | S sold | -4,916 | $108.5342 | 2,929 | D |
| Class A Common Stock | 2026-10-05 | S sold | -1,829 | $109.1445 | 1,100 | D |
| Class A Common Stock | 2026-10-05 | S sold | -100 | $110.09 | 1,000 | D |
| Stock Option (right to buy) derivative | 2026-10-05 | M exercised | -10,000 | $2.8 | 546,667 | D |
| Stock Option (right to buy) derivative | 2026-10-05 | M exercised | -10,000 | $2.8 | 536,667 | D |