Yalonda Howze Generation Bio Co. (GBIO) insider trading activity

Yalonda Howze is CHIEF LEGAL OFFICER of Generation Bio Co.. Currently has a direct ownership of 2,581 shares of GBIO, which is worth approximately $13,989. The most recent transaction as insider was on Jan 15, 2026, when has been sold 99 shares (Common Stock) at a price of $5.64 per share, resulting in proceeds of $558. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 2.58K

10.06% 3M change

84.24% 12M change

Total Value Held $13,989

Yalonda Howze Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Jan 15 2026	SELL Payment of exercise price or tax liability	$558 $5.64 p/Share	99 Reduced 3.69%	2,581 Common Stock
Jan 15 2026	BUY Exercise of conversion of derivative security	-	335 Added 11.11%	2,680 Common Stock
Oct 15 2025	SELL Payment of exercise price or tax liability	$664 $6.71 p/Share	99 Reduced 4.05%	2,345 Common Stock
Oct 15 2025	BUY Exercise of conversion of derivative security	-	334 Added 12.02%	2,444 Common Stock
Jul 15 2025	SELL Payment of exercise price or tax liability	$422 $0.43 p/Share	983 Reduced 4.45%	21,101 Common Stock
Jul 15 2025	BUY Exercise of conversion of derivative security	-	3,347 Added 13.16%	22,084 Common Stock
Apr 15 2025	SELL Payment of exercise price or tax liability	$363 $0.37 p/Share	983 Reduced 4.98%	18,737 Common Stock

Apr 15 2025	BUY Exercise of conversion of derivative security	-	3,347 Added 14.51%	19,720 Common Stock
Jan 15 2025	SELL Payment of exercise price or tax liability	$1,032 $0.89 p/Share	1,160 Reduced 6.62%	16,373 Common Stock
Jan 15 2025	BUY Exercise of conversion of derivative security	-	3,347 Added 16.03%	17,533 Common Stock
Oct 15 2024	SELL Payment of exercise price or tax liability	-	983 Reduced 6.48%	14,186 Common Stock
Oct 15 2024	BUY Exercise of conversion of derivative security	$8,099 $2.42 p/Share	3,347 Added 18.08%	15,169 Common Stock
Jul 15 2024	SELL Payment of exercise price or tax liability	$2,880 $2.93 p/Share	983 Reduced 7.68%	11,822 Common Stock
Jul 15 2024	BUY Exercise of conversion of derivative security	-	3,347 Added 20.72%	12,805 Common Stock
Apr 15 2024	SELL Payment of exercise price or tax liability	$14,541 $3.7 p/Share	3,930 Reduced 29.35%	9,458 Common Stock
Apr 15 2024	BUY Exercise of conversion of derivative security	-	13,388 Added 50.0%	13,388 Common Stock

Also insider at

CDAK

Codiak BioSciences, Inc. Healthcare

Yalonda Howze

CHIEF LEGAL OFFICER

Cambridge, MA

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