Caribou Biosciences, Inc. (CRBU) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

93,123,239Shares Outstanding

12,022,189Shares held by institutions

$21,519,718Value of institutional holdings

39.49%Institutional ownership %

-7.76%Shares Changed QoQ

116No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Caribou Biosciences, Inc. (NASDAQ:CRBU) currently has 116 active institutional owners and shareholders as of today (September 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

These investors collectively held 39.5% of the company's total shares outstanding in September 2025, down from 43.6% in June 2025.
Quarterly data indicates a -7.76% shift in institutional share volume, and the annual owner count reflects a decrease of 8.66%.
A review of institutional activity for Caribou Biosciences shows 30 of 116 filers increasing their positions, while 53 reduced their stake, and 33 remained unchanged.
This class of investors decreased its holdings in Caribou Biosciences to 36.78Mn shares for the 13F-cycle ending September 2025, down by 3.09Mn shares quarter on quarter, and down 14.72Mn shares year over year.
PFIZER INC continues to be the largest institutional holder of Caribou Biosciences as of September 30, 2025, with a position of 4.69Mn shares, representing 5.04% of the company's outstanding stock.
Among the most significant buyers of Caribou Biosciences during September 2025 were MILLENNIUM MANAGEMENT LLC (1.67Mn), Aberdeen Group plc (491.33K), BANK OF AMERICA CORP /DE/ (265.54K), RENAISSANCE TECHNOLOGIES LLC (248.30K), CITADEL ADVISORS LLC (200.66K).
Leading sellers of Caribou Biosciences stock in September 2025 included Schonfeld Strategic Advisors LLC (1.71Mn), JACOBS LEVY EQUITY MANAGEMENT, INC (607.90K), AQR CAPITAL MANAGEMENT LLC (585.72K), GOLDMAN SACHS GROUP INC (546.79K), BlackRock, Inc. (424.16K).
The top 10 institutional holders of Caribou Biosciences for the quarter ending September 2025 included PFIZER INC (4.69Mn), VANGUARD GROUP INC (4.23Mn), MILLENNIUM MANAGEMENT LLC (3.22Mn), Kynam Capital Management, LP (3.07Mn), BlackRock, Inc. (1.46Mn), Aberdeen Group plc (1.39Mn), PFM Health Sciences, LP (1.36Mn), TWO SIGMA ADVISERS, LP (1.23Mn), DIMENSIONAL FUND ADVISORS LP (1.21Mn), BANK OF AMERICA CORP /DE/ (1.07Mn).

116 Institutional Holders

12,022,189 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
PFIZER INC	30 Sep, 2025	4,690,431	0	0.00%	$10,928,704.00
VANGUARD GROUP INC	30 Sep, 2025	4,226,926	137,060	3.35%	$9,848,737.00
MILLENNIUM MANAGEMENT LLC	30 Sep, 2025	3,216,535	1,665,946	107.44%	$7,494,527.00
Kynam Capital Management, LP	30 Sep, 2025	3,067,774	0	0.00%	$7,147,913.00
BlackRock, Inc.	30 Sep, 2025	1,459,320	-424,156	-22.52%	$3,400,215.00
Aberdeen Group plc	30 Sep, 2025	1,388,905	491,326	54.74%	$3,236,149.00
PFM Health Sciences, LP	30 Sep, 2025	1,358,831	0	0.00%	$3,166,076.00
TWO SIGMA ADVISERS, LP	30 Sep, 2025	1,227,400	-220,400	-15.22%	$2,859,842.00
DIMENSIONAL FUND ADVISORS LP	30 Sep, 2025	1,210,310	-97,045	-7.42%	$2,819,859.00
BANK OF AMERICA CORP /DE/	30 Sep, 2025	1,074,442	265,542	32.83%	$2,503,450.00
GEODE CAPITAL MANAGEMENT, LLC	30 Sep, 2025	985,126	4,197	0.43%	$2,296,349.00
TWO SIGMA INVESTMENTS, LP	30 Sep, 2025	783,590	-144,935	-15.61%	$1,825,765.00
RENAISSANCE TECHNOLOGIES LLC	30 Sep, 2025	780,421	248,300	46.66%	$1,818,381.00
Pale Fire Capital SE	30 Sep, 2025	775,055	0	0.00%	$1,805,878.00
FMR LLC	30 Sep, 2025	729,002	-439	-0.06%	$1,698,574.00
MAVERICK CAPITAL LTD	30 Sep, 2025	652,542	0	0.00%	$1,520,423.00
Cambridge Investment Research Advisors, Inc.	30 Sep, 2025	582,387	-2,059	-0.35%	$1,357.00
ROYAL BANK OF CANADA	30 Sep, 2025	574,267	-24,964	-4.17%	$1,337,000.00
Schonfeld Strategic Advisors LLC	30 Sep, 2025	558,576	-1,714,290	-75.42%	$1,301,480.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	30 Sep, 2025	558,474	29,025	5.48%	$1,301,244.00

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Caribou Biosciences, Inc. (CRBU) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

116 Institutional Holders

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