Form 4 for BLLN BillionToOne, Inc.
Accepted 2026-09-10 19:44:22 ET · period of report 2026-09-08 · accession 0002070849-26-000066 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-09-10 19:44 | 2026-09-08 | BLLN | Atay Oguzhan | COB, CEO, Dir | C - Cnv Deriv | $0.00 | +20.0K | 20.0K | New | $0 |
| D | 2026-09-10 19:44 | 2026-09-09 | BLLN | Atay Oguzhan | COB, CEO, Dir | G - Gift | $0.00 | -20.0K | 0 | -100% | $0 |
| D | 2026-09-10 19:44 | 2026-09-08 | BLLN | Atay Oguzhan | COB, CEO, Dir | C - Cnv Deriv | $0.00 | -20.0K | 2.20M | -0.9% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Class A Common Stock | 2026-09-08 | C | A | 20,000 | $0.00 | 20,000 | D | — | — | (F1) These shares of Class B common stock were converted at a 1:1 ratio for shares of Class A common stock at the option of the holder. (F1) These shares of Class B common stock were converted at a 1:1 ratio for shares of Class A common stock at the option of the holder. |
| 2 | Common | Class A Common Stock | 2026-09-09 | G | D | 20,000 | $0.00 | 0 | D | — | — | |
| 3 | Derivative | Class B Common Stock | 2026-09-08 | C | D | 20,000 | $0.00 | 2,197,542 | D | — · — to — | 20,000 Class A Common Stock | (F1) These shares of Class B common stock were converted at a 1:1 ratio for shares of Class A common stock at the option of the holder. (F2) Each share of Class B Common Stock is convertible into one share of Class A common stock at the option of the holder. Class B common stock will convert automatically on a one-for-one basis into shares of the Issuer's Class A common stock upon the earliest of (i) seven years from the date of filing of the amended and restated certificate of incorporation, in connection with the Offering and (ii) the date specified by a vote of the holders of Class B common stock representing a majority of the outstanding shares of Class B common stock. (F1) These shares of Class B common stock were converted at a 1:1 ratio for shares of Class A common stock at the option of the holder. (F2) Each share of Class B Common Stock is convertible into one share of Class A common stock at the option of the holder. Class B common stock will convert automatically on a one-for-one basis into shares of the Issuer's Class A common stock upon the earliest of (i) seven years from the date of filing of the amended and restated certificate of incorporation, in connection with the Offering and (ii) the date specified by a vote of the holders of Class B common stock representing a majority of the outstanding shares of Class B common stock. (F2) Each share of Class B Common Stock is convertible into one share of Class A common stock at the option of the holder. Class B common stock will convert automatically on a one-for-one basis into shares of the Issuer's Class A common stock upon the earliest of (i) seven years from the date of filing of the amended and restated certificate of incorporation, in connection with the Offering and (ii) the date specified by a vote of the holders of Class B common stock representing a majority of the outstanding shares of Class B common stock. |