Caribou Biosciences, Inc. (CRBU) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

93,293,099Shares Outstanding

37,574,037Shares held by institutions

$80,784,180Value of institutional holdings

40.28%Institutional ownership %

3.67%Shares Changed QoQ

120No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Caribou Biosciences, Inc. (NASDAQ:CRBU) has 120 institutional investors with active 13F positions as of December 2025.

These investors held 39.7% of outstanding shares in December 2025, down from 40.6% in September 2025.
Their total shares held in CRBU increased 2.66% from the prior quarter, while the number of investors in Caribou Biosciences decreased 6.98% year over year.
Among the 120 funds, 51 bought more Caribou Biosciences shares, 35 sold down, and 34 held their ground.
Institutional investors collectively held 37.05Mn shares in Caribou Biosciences as of December 2025, up by 958.67K shares quarter on quarter, and down 21.97Mn shares year over year.
Pfizer Inc leads ownership in CRBU with 4.69Mn shares as of December 31, 2025, equal to 5.03% of outstanding shares.
Leading buyers of Caribou Biosciences shares for the quarter ending December 2025 were RENAISSANCE TECHNOLOGIES LLC (859.44K), MARSHALL WACE, LLP (755.26K), Goldman Sachs Group Inc (733.45K), BlackRock, Inc. (681.7K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (585.77K).
The biggest sellers of Caribou Biosciences for the quarter ending December 2025 included MILLENNIUM MANAGEMENT LLC (2.45Mn), Bank Of America Corp /De/ (1.16Mn), Kynam Capital Management, LP (564.47K), Royal Bank Of Canada (559.39K), PFM Health Sciences, LP (401.04K).
Per Business Quant data, the top 10 holders of Caribou Biosciences for the quarter ending December 2025 are Pfizer Inc (4.69Mn), VANGUARD GROUP INC (4.3Mn), Kynam Capital Management, LP (2.5Mn), BlackRock, Inc. (2.14Mn), RENAISSANCE TECHNOLOGIES LLC (1.64Mn), Aberdeen Group plc (1.39Mn), TWO SIGMA ADVISERS, LP (1.12Mn), SUSQUEHANNA INTERNATIONAL GROUP, LLP (1.03Mn), TWO SIGMA INVESTMENTS, LP (1.02Mn), DIMENSIONAL FUND ADVISORS LP (1.01Mn).

120 Institutional Holders

37,574,037 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
Pfizer Inc	31 Dec, 2025	4,690,431	0	0.00%	$7,457,785.00
VANGUARD GROUP INC	31 Dec, 2025	4,304,198	77,272	1.83%	$6,843,676.00
Kynam Capital Management, LP	31 Dec, 2025	2,503,302	-564,472	-18.40%	$3,980,250.00
BlackRock, Inc.	31 Dec, 2025	2,141,023	681,703	46.71%	$3,404,227.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	1,639,857	859,436	110.12%	$2,607,373.00
Aberdeen Group plc	31 Dec, 2025	1,388,905	0	0.00%	$2,208,359.00
TWO SIGMA ADVISERS, LP	31 Dec, 2025	1,115,700	-111,700	-9.10%	$1,773,963.00
SUSQUEHANNA INTERNATIONAL GROUP, LLP	31 Dec, 2025	1,031,375	585,768	131.45%	$1,639,887.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	1,020,079	236,489	30.18%	$1,621,926.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	1,006,010	-204,300	-16.88%	$1,599,556.00
Bank Of America Corp /De/	31 Dec, 2025	993,186	-1,155,698	-53.78%	$1,579,166.00
Goldman Sachs Group Inc	31 Dec, 2025	978,276	733,452	299.58%	$1,555,460.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	976,813	-8,313	-0.84%	$1,553,785.00
PFM Health Sciences, LP	31 Dec, 2025	957,787	-401,044	-29.51%	$1,522,881.00
MARSHALL WACE, LLP	31 Dec, 2025	881,105	755,261	600.16%	$1,400,957.00
JACOBS LEVY EQUITY MANAGEMENT, INC	31 Dec, 2025	824,299	475,216	136.13%	$1,310,635.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	767,002	-2,449,533	-76.15%	$1,219,533.00
FMR LLC	31 Dec, 2025	725,968	-3,034	-0.42%	$1,154,289.00
MAVERICK CAPITAL LTD	31 Dec, 2025	652,542	0	0.00%	$1,037,542.00
UBS Group AG	31 Dec, 2025	637,745	318,453	99.74%	$1,014,015.00

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