Generation BIO Co

Q4 2025 vs Q1 2026

Comparing institutional holders between quarters

Compare Detailed Historical Funds Options 13D/13G Peers Targeting Trading Summary Profile

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SymBiosis Capital Partners, LLC

CLOSED

Shares0 from 665,000

Change-665,000 (-100%)

Value$0 (-$3.8M)

Filed 2026-05-12

Opaleye Management Inc.

CLOSED

Shares0 from 310,000

Change-310,000 (-100%)

Value$0 (-$1.8M)

Filed 2026-05-15

Renaissance Technologies LLC

CLOSED

Shares0 from 287,614

Change-287,614 (-100%)

Value$0 (-$1.6M)

Filed 2026-05-14

Price T Rowe Associates Inc

CLOSED

Shares0 from 209,641

Change-209,641 (-100%)

Value$0 (-$1.2K)

Filed 2026-05-15

Siren, L.L.C.

CLOSED

Shares0 from 201,419

Change-201,419 (-100%)

Value$0 (-$1.1M)

Filed 2026-05-14

UBS Group AG

CLOSED

Shares0 from 164,716

Change-164,716 (-100%)

Value$0 (-$935.6K)

Filed 2026-05-05

Morgan Stanley

CLOSED

Shares0 from 161,378

Change-161,378 (-100%)

Value$0 (-$916.6K)

Filed 2026-05-15

Marshall Wace, LLP

CLOSED

Shares0 from 140,294

Change-140,294 (-100%)

Value$0 (-$796.9K)

Filed 2026-05-15

Acadian Asset Management LLC

CLOSED

Shares0 from 121,029

Change-121,029 (-100%)

Value$0 (-$686)

Filed 2026-05-13

Yiheng Capital Management, L.P.

CLOSED

Shares0 from 105,524

Change-105,524 (-100%)

Value$0 (-$599.4K)

Filed 2026-05-15

Rangeley Capital, LLC

CLOSED

Shares0 from 98,280

Change-98,280 (-100%)

Value$0 (-$558.2K)

Filed 2026-05-15

Goldman Sachs Group Inc

CLOSED

Shares0 from 91,527

Change-91,527 (-100%)

Value$0 (-$519.9K)

Filed 2026-05-15

Millennium Management LLC

CLOSED

Shares0 from 88,563

Change-88,563 (-100%)

Value$0 (-$503.0K)

Filed 2026-05-15

Bank of America Corp

CLOSED

Shares0 from 84,842

Change-84,842 (-100%)

Value$0 (-$481.9K)

Filed 2026-05-18

BlackRock, Inc.

CLOSED

Shares0 from 60,070

Change-60,070 (-100%)

Value$0 (-$341.2K)

Filed 2026-05-13

Geode Capital Management, LLC

CLOSED

Shares0 from 51,795

Change-51,795 (-100%)

Value$0 (-$294.3K)

Filed 2026-05-15

Two Sigma Investments, LP

CLOSED

Shares0 from 50,557

Change-50,557 (-100%)

Value$0 (-$287.2K)

Filed 2026-05-15

Citadel Advisors LLC

CLOSED

Shares0 from 47,245

Change-47,245 (-100%)

Value$0 (-$268.4K)

Filed 2026-05-15

DRW Securities, LLC

CLOSED

Shares0 from 43,812

Change-43,812 (-100%)

Value$0 (-$248.9K)

Filed 2026-05-13

Deltec Asset Management LLC

CLOSED

Shares0 from 32,650

Change-32,650 (-100%)

Value$0 (-$185.5K)

Filed 2026-04-24

TD Asset Management Inc

CLOSED

Shares0 from 26,708

Change-26,708 (-100%)

Value$0 (-$151.7K)

Filed 2026-05-11

Torno Capital, LLC

CLOSED

Shares0 from 25,000

Change-25,000 (-100%)

Value$0 (-$142.0K)

Filed 2026-08-17

Lynx1 Capital Management LP

CLOSED

Shares0 from 25,000

Change-25,000 (-100%)

Value$0 (-$142.0K)

Filed 2026-05-04

Adar1 Capital Management, LLC

CLOSED

Shares0 from 22,144

Change-22,144 (-100%)

Value$0 (-$125.8K)

Filed 2026-05-18

State Street Corp

CLOSED

Shares0 from 19,993

Change-19,993 (-100%)

Value$0 (-$113.6K)

Filed 2026-05-15

Shay Capital LLC

CLOSED

Shares0 from 19,839

Change-19,839 (-100%)

Value$0 (-$112.7K)

Filed 2026-05-15

CSS LLC

CLOSED

Shares0 from 17,464

Change-17,464 (-100%)

Value$0 (-$99.2K)

Filed 2026-05-15

Northern Trust Corp

CLOSED

Shares0 from 17,058

Change-17,058 (-100%)

Value$0 (-$96.9K)

Filed 2026-05-14

Palo Alto Investors LP

CLOSED

Shares0 from 15,047

Change-15,047 (-100%)

Value$0 (-$85.5K)

Filed 2026-05-15

Manufacturers Life Insurance Company, the

CLOSED

Shares0 from 14,398

Change-14,398 (-100%)

Value$0 (-$80.5K)

Filed 2026-05-15

XTX Topco Ltd

CLOSED

Shares0 from 13,122

Change-13,122 (-100%)

Value$0 (-$74.5K)

Filed 2026-05-15

Two Sigma Advisers, LP

CLOSED

Shares0 from 11,930

Change-11,930 (-100%)

Value$0 (-$67.8K)

Filed 2026-05-15

Seven Fleet Capital Management LP

CLOSED

Shares0 from 5,376

Change-5,376 (-100%)

Value$0 (-$30.5K)

Filed 2026-06-04

FMR LLC

CLOSED

Shares0 from 2,617

Change-2,617 (-100%)

Value$0 (-$14.9K)

Filed 2026-05-15

Royal Bank of Canada

CLOSED

Shares0 from 992

Change-992 (-100%)

Value$0 (-$6.0K)

Filed 2026-05-15

JPMorgan Chase & Co

CLOSED

Shares0 from 689

Change-689 (-100%)

Value$0 (-$3.9K)

Filed 2026-05-13

Rockefeller Capital Management L.P.

CLOSED

Shares0 from 500

Change-500 (-100%)

Value$0 (-$2.8K)

Filed 2026-05-14

Sterling Capital Management LLC

CLOSED

Shares0 from 194

Change-194 (-100%)

Value$0 (-$1.1K)

Filed 2026-04-22

BNP Paribas Financial Markets

CLOSED

Shares0 from 147

Change-147 (-100%)

Value$0 (-$835)

Filed 2026-05-12

SBI Securities Co., Ltd.

CLOSED

Shares0 from 53

Change-53 (-100%)

Value$0 (-$301)

Filed 2026-04-28

Wells Fargo & Company

CLOSED

Shares0 from 50

Change-50 (-100%)

Value$0 (-$284)

Filed 2026-07-08

Optiver Holding B.V.

CLOSED

Shares0 from 2

Change-2 (-100%)

Value$0 (-$11)

Filed 2026-06-02

Smartleaf Asset Management LLC

CLOSED

Shares0 from 1

Change-1 (-100%)

Value$0 (-$6)

Filed 2026-05-15

CWM, LLC

CLOSED

Shares0 from 1

Change-1 (-100%)

Value$0 ($0)

Filed 2026-05-14

Vanguard Group Inc

DECREASED

Shares0 from 229,833

Change-229,833 (-100%)

Value$0 (-$1.3M)

Filed 2026-05-14

	Status
SymBiosis Capital Partners, LLC	CLOSED	665,000	-665,000	-100%	$3.8M	$0	-$3.8M	2026-05-12
Opaleye Management Inc.	CLOSED	310,000	-310,000	-100%	$1.8M	$0	-$1.8M	2026-05-15
Renaissance Technologies LLC	CLOSED	287,614	-287,614	-100%	$1.6M	$0	-$1.6M	2026-05-14
Price T Rowe Associates Inc	CLOSED	209,641	-209,641	-100%	$1.2K	$0	-$1.2K	2026-05-15
Siren, L.L.C.	CLOSED	201,419	-201,419	-100%	$1.1M	$0	-$1.1M	2026-05-14
UBS Group AG	CLOSED	164,716	-164,716	-100%	$935.6K	$0	-$935.6K	2026-05-05
Morgan Stanley	CLOSED	161,378	-161,378	-100%	$916.6K	$0	-$916.6K	2026-05-15
Marshall Wace, LLP	CLOSED	140,294	-140,294	-100%	$796.9K	$0	-$796.9K	2026-05-15
Acadian Asset Management LLC	CLOSED	121,029	-121,029	-100%	$686	$0	-$686	2026-05-13
Yiheng Capital Management, L.P.	CLOSED	105,524	-105,524	-100%	$599.4K	$0	-$599.4K	2026-05-15
Rangeley Capital, LLC	CLOSED	98,280	-98,280	-100%	$558.2K	$0	-$558.2K	2026-05-15
Goldman Sachs Group Inc	CLOSED	91,527	-91,527	-100%	$519.9K	$0	-$519.9K	2026-05-15
Millennium Management LLC	CLOSED	88,563	-88,563	-100%	$503.0K	$0	-$503.0K	2026-05-15
Bank of America Corp	CLOSED	84,842	-84,842	-100%	$481.9K	$0	-$481.9K	2026-05-18
BlackRock, Inc.	CLOSED	60,070	-60,070	-100%	$341.2K	$0	-$341.2K	2026-05-13
Geode Capital Management, LLC	CLOSED	51,795	-51,795	-100%	$294.3K	$0	-$294.3K	2026-05-15
Two Sigma Investments, LP	CLOSED	50,557	-50,557	-100%	$287.2K	$0	-$287.2K	2026-05-15
Citadel Advisors LLC	CLOSED	47,245	-47,245	-100%	$268.4K	$0	-$268.4K	2026-05-15
DRW Securities, LLC	CLOSED	43,812	-43,812	-100%	$248.9K	$0	-$248.9K	2026-05-13
Deltec Asset Management LLC	CLOSED	32,650	-32,650	-100%	$185.5K	$0	-$185.5K	2026-04-24
TD Asset Management Inc	CLOSED	26,708	-26,708	-100%	$151.7K	$0	-$151.7K	2026-05-11
Torno Capital, LLC	CLOSED	25,000	-25,000	-100%	$142.0K	$0	-$142.0K	2026-08-17
Lynx1 Capital Management LP	CLOSED	25,000	-25,000	-100%	$142.0K	$0	-$142.0K	2026-05-04
Adar1 Capital Management, LLC	CLOSED	22,144	-22,144	-100%	$125.8K	$0	-$125.8K	2026-05-18
State Street Corp	CLOSED	19,993	-19,993	-100%	$113.6K	$0	-$113.6K	2026-05-15
Shay Capital LLC	CLOSED	19,839	-19,839	-100%	$112.7K	$0	-$112.7K	2026-05-15
CSS LLC	CLOSED	17,464	-17,464	-100%	$99.2K	$0	-$99.2K	2026-05-15
Northern Trust Corp	CLOSED	17,058	-17,058	-100%	$96.9K	$0	-$96.9K	2026-05-14
Palo Alto Investors LP	CLOSED	15,047	-15,047	-100%	$85.5K	$0	-$85.5K	2026-05-15
Manufacturers Life Insurance Company, the	CLOSED	14,398	-14,398	-100%	$80.5K	$0	-$80.5K	2026-05-15
XTX Topco Ltd	CLOSED	13,122	-13,122	-100%	$74.5K	$0	-$74.5K	2026-05-15
Two Sigma Advisers, LP	CLOSED	11,930	-11,930	-100%	$67.8K	$0	-$67.8K	2026-05-15
Seven Fleet Capital Management LP	CLOSED	5,376	-5,376	-100%	$30.5K	$0	-$30.5K	2026-06-04
FMR LLC	CLOSED	2,617	-2,617	-100%	$14.9K	$0	-$14.9K	2026-05-15
Royal Bank of Canada	CLOSED	992	-992	-100%	$6.0K	$0	-$6.0K	2026-05-15
JPMorgan Chase & Co	CLOSED	689	-689	-100%	$3.9K	$0	-$3.9K	2026-05-13
Rockefeller Capital Management L.P.	CLOSED	500	-500	-100%	$2.8K	$0	-$2.8K	2026-05-14
Sterling Capital Management LLC	CLOSED	194	-194	-100%	$1.1K	$0	-$1.1K	2026-04-22
BNP Paribas Financial Markets	CLOSED	147	-147	-100%	$835	$0	-$835	2026-05-12
SBI Securities Co., Ltd.	CLOSED	53	-53	-100%	$301	$0	-$301	2026-04-28
Wells Fargo & Company	CLOSED	50	-50	-100%	$284	$0	-$284	2026-07-08
Optiver Holding B.V.	CLOSED	2	-2	-100%	$11	$0	-$11	2026-06-02
Smartleaf Asset Management LLC	CLOSED	1	-1	-100%	$6	$0	-$6	2026-05-15
CWM, LLC	CLOSED	1	-1	-100%	$0	$0	$0	2026-05-14
Vanguard Group Inc	DECREASED	229,833	-229,833	-100%	$1.3M	$0	-$1.3M	2026-05-14

Showing 45 of 45 institutions