MCDONOUGH GEOFF 4

4 · Generation Bio Co. · Filed Oct 17, 2025

Form 4

Period: 2025-10-15

Director

Transactions

Tax Payment
Common Stock
2025-10-15$6.71/sh−155$1,040→ 136,836 total
Exercise/Conversion
Common Stock
2025-10-15+527→ 136,991 total
Exercise/Conversion
Restricted Stock Units
2025-10-15−527→ 2,636 total
→ Common Stock (527 underlying)

Holdings

Footnotes (5)

[F1]Amounts reported in this Form 4 reflect the one-for-10 reverse stock split effected by the issuer on July 21, 2025.
[F2]Each restricted stock unit represents the right to receive one share of the company's common stock.
[F3]The securities are directly held by the McDonough Family 2018 Irrevocable Trust, or the 2018 Trust. The reporting person is the settlor of the 2018 Trust, Allison L. McDonough and David S. Grayzel are trustees for the 2018 Trust, and the 2018 Trust is for the benefit of Graeme and Owen McDonough. The reporting person may be deemed to beneficially own the shares of common stock owned by the 2018 Trust.
[F4]The securities are directly held by the McDonough Family 2020 Irrevocable Trust, or the 2020 Trust. The reporting person is the settlor of the 2020 Trust, Allison L. McDonough and David S. Grayzel are trustees for the 2020 Trust, and the 2020 Trust is for the benefit of Allison, Graeme and Owen McDonough. The reporting person may be deemed to beneficially own the shares of common stock owned by the 2020 Trust.
[F5]On January 20, 2023, the reporting person was granted 8,437 restricted stock units. The shares underlying the restricted stock units vest over four years, with 25% of the shares vested on January 15, 2024 and the remaining shares vesting in equal quarterly installments thereafter.

Documents

1 file