Martins Ryan 4
4 · 89bio, Inc. · Filed Oct 23, 2025
Insider Transaction Report
Form 4
89bio, Inc.ETNB
Martins Ryan
Chief Financial Officer
Transactions
- Exercise/Conversion
Stock Option (Right to Buy)
2025-10-22−3,898→ 48,102 totalExercise: $4.44Exp: 2032-02-16→ Common Stock (3,898 underlying) - Exercise/Conversion
Stock Option (Right to Buy)
2025-10-22−76,901→ 0 totalExercise: $3.11Exp: 2029-07-30→ Common Stock (76,901 underlying) - Exercise/Conversion
Common Stock
2025-10-22$3.11/sh+76,901$239,162→ 335,397 total - Exercise/Conversion
Common Stock
2025-10-22$4.44/sh+3,898$17,307→ 339,295 total
Footnotes (4)
- [F1]Due to an administrative error, the exercise of an aggregate of 5,000 options was erroneously omitted from the Form 4 filed by the Reporting Person on March 27, 2023. This form reflects the correct amount of common stock owned by the Reporting Person.
- [F2]This option is vested in full.
- [F3]Due to an administrative error, the exercise of an aggregate of 5,000 options was erroneously omitted from the Form 4 filed by the Reporting Person on March 27, 2023. This form reflects the correct amount of stock options owned by the Reporting Person.
- [F4]This option represents a right to purchase a total of 52,000 shares of the Issuer's Common Stock, one quarter of which vested on February 17, 2023, with the remaining three quarters vesting in equal quarterly installments over the following three years, subject to the Reporting Person's continued service to the Issuer.