Phillip Samayoa

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
15 Jan 25	GBIO Generation Bio	Common Stock	Payment of exercise	Dispose F	No	No	0.888	398	353.42	127,709
15 Jan 25	GBIO Generation Bio	Common Stock	Option exercise	Acquire M	No	No	0	1,147	0.00	128,107
15 Jan 25	GBIO Generation Bio	RSU Common Stock	Option exercise	Dispose M	No	No	0	1,147	0.00	9,170
10 Jan 25	GBIO Generation Bio	Stock Option Common Stock	Grant	Acquire A	No	No	0.926	251,030	232.45 k	251,030
15 Oct 24	GBIO Generation Bio	Common Stock	Payment of exercise	Dispose F	No	No	2.42	337	815.54	122,097
15 Oct 24	GBIO Generation Bio	Common Stock	Option exercise	Acquire M	No	No	0	1,147	0.00	122,434
15 Oct 24	GBIO Generation Bio	RSU Common Stock	Option exercise	Dispose M	No	No	0	1,147	0.00	10,317
15 Jul 24	GBIO Generation Bio	Common Stock	Payment of exercise	Dispose F	No	No	2.93	337	987.41	121,287
15 Jul 24	GBIO Generation Bio	Common Stock	Option exercise	Acquire M	No	No	0	1,147	0.00	121,624
15 Jul 24	GBIO Generation Bio	RSU Common Stock	Option exercise	Dispose M	No	No	0	1,147	0.00	11,464

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.