Caribou Biosciences CRBU Institutional Ownership

NASDAQ CRBU

$1.22 -0.05 (-3.94%)

At close: Oct 1, 2026 · 4:00 PM EDT

Institutions by Trading Activity

139 Institutions

Increased 72 51.8%

Unchanged 43 30.9%

Reduced 24 17.3%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

48.77%

▲+9.31 pp QoQ

Shares Held by Institutions

49.25Mn

of 100.99Mn outstanding

▲+36.59% QoQ

Shares Outstanding

100.99Mn

51.73Mn held outside 13F filers

Institutional Investors

139

filed 13F for Jun 2026

▲+3 vs prior quarter

Net Shares Added (QoQ)

+13.19Mn

accumulated since last quarter

Value of Holdings

$62.55Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Caribou Biosciences, Inc. (NASDAQ:CRBU) is held by 139 institutional investors per 13F filings through June 2026.

They owned 48.8% of outstanding stock in June 2026, up from 39.5% the prior quarter.
Their total shares held in CRBU increased 36.59% from the prior quarter, while the number of investors in Caribou Biosciences increased 8.59% year over year.
Of these 139 funds, 72 grew their exposure to Caribou Biosciences, 24 cut back, and 43 maintained positions.
In total, institutional investors held 49.25Mn shares in Caribou Biosciences as of June 2026, up by 13.19Mn shares quarter on quarter, and up 9.04Mn shares year over year.
As of June 30, 2026, the biggest holder of Caribou Biosciences is BlackRock, Inc. at 7.82Mn shares, representing 7.74% of shares outstanding.
Leading buyers of Caribou Biosciences shares for the quarter ending June 2026 were BlackRock, Inc. (5.67Mn), MACKENZIE FINANCIAL CORP (2.71Mn), GEODE CAPITAL MANAGEMENT, LLC (1.36Mn), State Street Corp (1.21Mn), ACADIAN ASSET MANAGEMENT LLC (849.44K).
The biggest sellers of Caribou Biosciences for the quarter ending June 2026 included MILLENNIUM MANAGEMENT LLC (1.02Mn), MARSHALL WACE, LLP (829.98K), TWO SIGMA INVESTMENTS, LP (713.66K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (671.49K), PFM Health Sciences, LP (603.1K).
Caribou Biosciences's 10 largest shareholders as of June 2026 include BlackRock, Inc. (7.82Mn), Pfizer Inc (4.69Mn), VANGUARD CAPITAL MANAGEMENT LLC (4.21Mn), MACKENZIE FINANCIAL CORP (3.65Mn), RENAISSANCE TECHNOLOGIES LLC (2.77Mn), Kynam Capital Management, LP (2.5Mn), GEODE CAPITAL MANAGEMENT, LLC (2.37Mn), ACADIAN ASSET MANAGEMENT LLC (1.77Mn), State Street Corp (1.63Mn), Bank Of America Corp /De/ (1.41Mn) per Business Quant data.

Form 13F Holdings

139 Institutional Holders

Report period 30 Jun, 2026

Total shares held 49.25Mn

Of outstanding 48.77%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	7,815,843	7.74%	▲5,672,758	+264.70%	$13.76Mn
2	Pfizer Inc	0000078003	4,690,431	4.64%	0	0.00%	$7.88Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	4,208,568	4.17%	▲441,340	+11.72%	$7.41Mn
4	MACKENZIE FINANCIAL CORP	0000919859	3,650,796	3.62%	▲2,708,010	+287.23%	$6.43Mn
5	RENAISSANCE TECHNOLOGIES LLC	0001037389	2,773,545	2.75%	▲183,048	+7.07%	$4.88Mn
6	Kynam Capital Management, LP	0001907884	2,503,302	2.48%	0	0.00%	$4.41Mn
7	GEODE CAPITAL MANAGEMENT, LLC	0001214717	2,374,894	2.35%	▲1,356,935	+133.30%	$4.18Mn
8	ACADIAN ASSET MANAGEMENT LLC	0000916542	1,774,474	1.76%	▲849,435	+91.83%	$3.12K
9	State Street Corp	0000093751	1,632,914	1.62%	▲1,209,651	+285.79%	$2.87Mn
10	Bank Of America Corp /De/	0000070858	1,410,958	1.40%	▲113,791	+8.77%	$2.48Mn
11	TWO SIGMA INVESTMENTS, LP	0001179392	1,046,279	1.04%	▼713,655	-40.55%	$1.84Mn
12	DIMENSIONAL FUND ADVISORS LP	0000354204	975,327	0.97%	▲302,127	+44.88%	$1.72Mn
13	Sixth Street Partners Management Company, L.P.	0001812095	775,809	0.77%	▲775,809	0.00%	$1.37Mn
13	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	775,809	0.77%	▲216,167	+38.63%	$1.37Mn
14	FMR LLC	0000315066	727,115	0.72%	▲3,156	+0.44%	$1.28Mn
15	Northern Trust Corp	0000073124	712,965	0.71%	▲495,230	+227.45%	$1.25Mn
16	MAVERICK CAPITAL LTD	0000934639	652,542	0.65%	0	0.00%	$1.15Mn
17	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	613,801	0.61%	▲613,801	0.00%	$1.08Mn
18	VANGUARD FIDUCIARY TRUST CO	0000933478	606,388	0.60%	▲86,270	+16.59%	$1.07Mn
19	Qube Research & Technologies Ltd	0001729829	545,755	0.54%	▲369,058	+208.86%	$960.53K

Showing 1 to 20 of 139 holders