Geoff Mcdonough - Jan 15, 2023 Form 4 Insider Report for Generation Bio Co. (GBIO)

Role
PRESIDENT AND CEO, Director
Signature
/s/ Jennifer Elliott, Attorney-in-Fact
Stock symbol
GBIO
Transactions as of
Jan 15, 2023
Transactions value $
-$41,422
Form type
4
Date filed
1/18/2023, 03:54 PM
Previous filing
Oct 18, 2022
Next filing
Jan 24, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GBIO Common Stock Options Exercise +23.4K +1.91% 1.25M Jan 15, 2023 Direct F1, F2
transaction GBIO Common Stock Tax liability -$41.4K -8.12K -0.65% $5.10 1.24M Jan 15, 2023 Direct
holding GBIO Common Stock 226K Jan 15, 2023 By 2018 Trust F3
holding GBIO Common Stock 275K Jan 15, 2023 By 2020 Trust F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction GBIO Restricted Stock Units Options Exercise $0 -23.4K -20% $0.00 93.7K Jan 15, 2023 Common Stock 23.4K Direct F1, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit represents the right to receive one share of the company's common stock.
F2 Includes 1,865 shares acquired under the company's employee stock purchase plan since October 18, 2022.
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 21, 2022, the reporting person was granted 187,500 restricted stock units. The shares underlying the restricted stock units vest over two years, with 25% of the shares vested on July 15, 2022 and the remaining shares vesting in equal quarterly installments thereafter.