GBIO

Generation Bio Co.

Pharmaceutical PreparationsNasdaqNon-accelerated filer<br>Smaller reporting company

Total Trades

Buys

Sells

Largest Trade

$100K–$500K

Insiders

Institutional Funds

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
Quinn Anthony G.	Director	BUY	$100K–$500K	211K	$0.96	Jan 14, 2025
Paone Antoinette	CHIEF OPERATING OF…	SELL	$15K–$50K	7K	$2.74	Jul 3, 2024
Paone Antoinette	CHIEF OPERATING OF…	SELL	$1K–$15K	2K	$1.62	Jan 3, 2024
Samayoa Phillip	CHIEF STRATEGY OFF…	SELL	$1K–$15K	2K	$1.62	Jan 3, 2024
Paone Antoinette	CHIEF OPERATING OF…	SELL	$15K–$50K	3K	$4.93	Aug 25, 2023
Samayoa Phillip	CHIEF STRATEGY OFF…	SELL	$15K–$50K	3K	$5.29	Jul 5, 2023
Paone Antoinette	CHIEF OPERATING OF…	SELL	$1K–$15K	3K	$4.61	Apr 26, 2023
Paone Antoinette	CHIEF OPERATING OF…	SELL	$1K–$15K	3K	$5.56	Jan 27, 2023
Paone Antoinette	CHIEF OPERATING OF…	SELL	$1K–$15K	2K	$4.57	Jan 11, 2023
Samayoa Phillip	CHIEF STRATEGY OFF…	SELL	$1K–$15K	2K	$5.11	Jan 10, 2023
Paone Antoinette	CHIEF OPERATING OF…	SELL	$1K–$15K	3K	$5.03	Oct 28, 2022
Paone Antoinette	CHIEF OPERATING OF…	SELL	$1K–$15K	3K	$5.24	Sep 30, 2022
Rowland Charles A Jr	Director	BUY	$50K–$100K	16K	$5.26	Sep 20, 2022
Paone Antoinette	CHIEF OPERATING OF…	SELL	$15K–$50K	5K	$5.32	Sep 19, 2022
Rowland Charles A Jr	Director	BUY	$100K–$500K	51K	$5.46	Sep 19, 2022
Rowland Charles A Jr	Director	BUY	$100K–$500K	24K	$5.22	Sep 15, 2022
Nicholson Donald William	Director	BUY	$15K–$50K	10K	$4.73	Mar 11, 2022

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13F filings as of Dec 31, 2025 · 30 funds holding

Fund	Shares	Value	Type
Atlas Venture Life Science Advisors, LLC	828K	$1M+	SH
SymBiosis Capital Partners, LLC	665K	$1M+	SH
RENAISSANCE TECHNOLOGIES LLC	288K	$1M+	SH
Siren, L.L.C.	201K	$1M+	SH
UBS Group AG	164K	$500K+	SH
MARSHALL WACE, LLP	140K	$500K+	SH
ACADIAN ASSET MANAGEMENT LLC	121K	$500K+	SH
GOLDMAN SACHS GROUP INC	92K	$500K+	SH
DRW Securities, LLC	44K	$100K–$500K	SH
GEODE CAPITAL MANAGEMENT, LLC	43K	$100K–$500K	SH
DELTEC ASSET MANAGEMENT LLC	33K	$100K–$500K	SH
TD ASSET MANAGEMENT INC	27K	$100K–$500K	SH
TORNO CAPITAL, LLC	25K	$100K–$500K	SH
ADAR1 Capital Management, LLC	22K	$100K–$500K	SH
ADAR1 Capital Management, LLC	22K	$100K–$500K	SH
STATE STREET CORP	20K	$100K–$500K	SH
Palo Alto Investors LP	15K	$50K–$100K	SH
MANUFACTURERS LIFE INSURANCE COMPANY, THE	14K	$50K–$100K	SH
MORGAN STANLEY	6K	$15K–$50K	SH
Seven Fleet Capital Management LP	5K	$15K–$50K	SH