CRBU · Caribou Biosciences, Inc. · Holdings

$0.47 -0.02 (-3.37%)

Russell 2000 member Rebalance outlook locked

Market Cap

$51.33M

107.21M

Volume · Oct 9 9.68M Avg daily vol (3M) 2.15M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 137

Total Value: $85,767,456

Total Shares: 48,887,435

Showing 1–100 of 143 holdings by value · page 1 of 2

Institutional Ownership Trend

21 quarters

Holder Concentration

Across 137 13F filers

Top Holder

16.1%

of institutional value

Top 5

47.5%

of institutional value

Top 10

67.4%

of institutional value

HHI

629

Broadly held

Showing 100 of 143

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

BlackRock, Inc.

$13,755,880

16.04%

7,815,843

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	87,798	$154,524	1.1%	Sole
BlackRock Investment Management, LLC	277,412	$488,245	3.5%	Sole
BLACKROCK ADVISORS LLC	208,319	$366,641	2.7%	Sole
BlackRock Fund Advisors	4,192,259	$7,378,375	53.6%	Sole
BlackRock Institutional Trust Company, N.A.	2,983,253	$5,250,525	38.2%	Sole
BlackRock Asset Management Ireland Ltd	65,088	$114,554	0.8%	Sole
Aperio Group, LLC	1,714	$3,016	0.0%	Sole

Pfizer Inc

$8,255,158

9.63%

4,690,431

VANGUARD CAPITAL MANAGEMENT LLC

$7,407,079

8.64%

4,208,568

MACKENZIE FINANCIAL CORP

$6,425,400

7.49%

3,650,796

RENAISSANCE TECHNOLOGIES LLC

$4,881,439

5.69%

2,773,545

Kynam Capital Management, LP

$4,405,811

5.14%

2,503,302

GEODE CAPITAL MANAGEMENT, LLC

$4,179,812

4.87%

2,374,894

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	336,005	$591,368	14.1%	Defined
Held directly	2,038,889	$3,588,444	85.9%	Defined

ACADIAN ASSET MANAGEMENT LLC

$3,123,074

3.64%

1,774,474

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	1,774,474	$3,123,074	100.0%	Defined

STATE STREET CORP

$2,873,928

3.35%

1,632,914

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SSGA FUNDS MANAGEMENT, INC. joint	1,632,914	$2,873,928	100.0%	Defined

BANK OF AMERICA CORP /DE/

$2,483,284

2.90%

1,410,958

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	279,714	$492,296	19.8%	Defined
MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	1,072,856	$1,888,226	76.0%	Defined
BOFA SECURITIES, INC.	58,388	$102,762	4.1%	Defined

TWO SIGMA INVESTMENTS, LP

$1,841,451

2.15%

1,046,279

DIMENSIONAL FUND ADVISORS LP

$1,716,574

2.00%

975,327

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	5,437	$9,569	0.6%	Defined
DFA Australia Ltd.	41,247	$72,594	4.2%	Defined
Dimensional Ireland Ltd	63,503	$111,765	6.5%	Defined
Held directly	865,140	$1,522,646	88.7%	Sole

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$1,365,423

1.59%

775,809

FMR LLC

$1,279,721

1.49%

727,115

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	17,065	$30,034	2.3%	Defined
STRATEGIC ADVISERS LLC	107	$188	0.0%	Defined
Impresa Management LLC	709,943	$1,249,499	97.6%	Defined

NORTHERN TRUST CORP

$1,254,816

1.46%

712,965

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	698,635	$1,229,596	98.0%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	14,330	$25,220	2.0%	Other

MAVERICK CAPITAL LTD

$1,148,473

1.34%

652,542

VANGUARD PORTFOLIO MANAGEMENT LLC

$1,080,289

1.26%

613,801

VANGUARD FIDUCIARY TRUST CO

$1,067,242

1.24%

606,388

Qube Research & Technologies Ltd

$960,528

1.12%

545,755

UBS Group AG

$910,572

1.06%

517,371

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	1,400	$2,464	0.3%	Defined
UBS AG	515,971	$908,108	99.7%	Defined

72 Investment Holdings, LLC

$834,357

0.97%

474,067

GSA CAPITAL PARTNERS LLP

$815,612

0.95%

463,416

JACOBS LEVY EQUITY MANAGEMENT, INC

$723,323

0.84%

410,979

Green Alpha Advisors, LLC

$700,335

0.82%

551,445

Cambridge Investment Research Advisors, Inc.

$673,041

0.78%

382,410

MARSHALL WACE, LLP

$661,206

0.77%

375,686

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	375,686	$661,206	100.0%	Other

PFM Health Sciences, LP

$624,249

0.73%

354,687

GOLDMAN SACHS GROUP INC

$568,259

0.66%

322,875

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	56,297	$99,082	17.4%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	266,578	$469,177	82.6%	Defined

Invesco Ltd.

$529,964

0.62%

301,117

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	11,344	$19,964	3.8%	Defined
Invesco Trust Co joint	36,619	$64,449	12.2%	Defined
Invesco Capital Management LLC	253,154	$445,551	84.1%	Defined

WELLS FARGO & COMPANY/MN

$525,033

0.61%

298,315

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	76,905	$135,352	25.8%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	215,556	$379,378	72.3%	Defined
WELLS FARGO CLEARING SERVICES, LLC	5,854	$10,303	2.0%	Defined

XTX Topco Ltd

$473,716

0.55%

269,157

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	269,157	$473,716	100.0%	Defined

Bruce & Co., Inc.

$440,000

0.51%

250,000

Man Group plc

$422,516

0.49%

240,066

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Numeric Investors LLC	240,066	$422,516	100.0%	Defined

Bank of New York Mellon Corp

$391,704

0.46%

222,560

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	79,731	$140,326	35.8%	Defined
The Bank of New York Mellon	142,828	$251,377	64.2%	Defined
Held directly	1	$1	0.0%	Defined

MILESTONE ASSET MANAGEMENT, LLC

$352,149

0.41%

200,085

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$305,140

0.36%

173,375

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	173,375	$305,140	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$291,128

0.34%

165,414

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	165,414	$291,128	100.0%	Other

Susquehanna Portfolio Strategies, LLC

$279,130

0.33%

158,597

Graham Capital Management, L.P.

$274,408

0.32%

155,914

AMERICAN CENTURY COMPANIES INC

$247,420

0.29%

140,580

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	140,580	$247,420	100.0%	Defined

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$232,320

0.27%

132,000

Nuveen, LLC

$217,388

0.25%

123,516

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TEACHERS ADVISORS, LLC joint	123,516	$217,388	100.0%	Defined

CITADEL ADVISORS LLC

$217,008

0.25%

123,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	123,300	$217,008	100.0%	Defined

LPL Financial LLC

$216,082

0.25%

122,774

MORGAN STANLEY

$213,522

0.25%

121,320

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO. LLC	30,876	$54,341	25.4%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	42,079	$74,059	34.7%	Defined
MORGAN STANLEY SMITH BARNEY LLC	5,050	$8,888	4.2%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	43,315	$76,234	35.7%	Defined

NANO CAP NEW MILLENNIUM GROWTH FUND L P

$206,800

0.24%

117,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AZG TANGIBLE ASSETS FUND LLC	117,500	$206,800	100.0%	Sole

DEUTSCHE BANK AG\

$157,652

0.18%

89,575

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS Investments UK Ltd	89,575	$157,652	100.0%	Defined

Quadrature Capital Ltd

$156,603

0.18%

88,979

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	88,979	$156,603	100.0%	Other

CANADA PENSION PLAN INVESTMENT BOARD

$142,736

0.17%

81,100

Keystone Financial Group

$142,252

0.17%

80,825

BNP PARIBAS ARBITRAGE, SA

$124,776

0.15%

70,896

RHUMBLINE ADVISERS

$120,684

0.14%

68,571

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$120,032

0.14%

68,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	68,200	$120,032	100.0%	Other

CITIGROUP INC

$107,907

0.13%

61,311

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	61,311	$107,907	100.0%	Defined

Nelson Capital Management, LLC

$103,285

0.12%

58,685

MILLENNIUM MANAGEMENT LLC

$90,060

0.11%

51,171

BARCLAYS PLC

$88,548

0.10%

50,312

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	40,477	$71,239	80.5%	Defined
BARCLAYS CAPITAL INC.	9,835	$17,309	19.5%	Defined

COMMONWEALTH EQUITY SERVICES, LLC

$84,318

0.10%

47,908

JANE STREET GROUP, LLC

$80,432

0.09%

45,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	45,700	$80,432	100.0%	Defined

Virtu Financial LLC

$79,530

0.09%

45,188

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	45,188	$79,530	100.0%	Defined

JPMORGAN CHASE & CO

$75,554

0.09%

42,929

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	38,132	$67,112	88.8%	Defined
J.P. Morgan Securities plc	4,797	$8,442	11.2%	Defined

SEI INVESTMENTS CO

$73,812

0.09%

41,939

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI TRUST CO	41,939	$73,812	100.0%	Sole

CITADEL ADVISORS LLC

$71,130

0.08%

40,415

RBF Capital, LLC

$70,400

0.08%

40,000

PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO

$68,867

0.08%

39,129

JANE STREET GROUP, LLC

$66,704

0.08%

37,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	37,900	$66,704	100.0%	Defined

Russell Investments Group, Ltd.

$65,786

0.08%

37,380

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC joint	24,408	$42,957	65.3%	Defined
Russell Investments Capital, LLC joint	6,267	$11,029	16.8%	Other
Russell Investments Trust Company joint	6,705	$11,800	17.9%	Other

ALLIANCEBERNSTEIN L.P.

$65,260

0.08%

37,080

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	37,080	$65,260	100.0%	Defined

Connor, Clark & Lunn Investment Management Ltd.

$62,502

0.07%

35,513

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	35,513	$62,502	100.0%	Sole

NEW YORK STATE COMMON RETIREMENT FUND

$62,304

0.07%

35,400

Vanguard Personalized Indexing Management, LLC

$61,098

0.07%

34,715

HSBC HOLDINGS PLC

$60,649

0.07%

34,460

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
HSBC BANK PLC	34,460	$60,649	100.0%	Defined

PRUDENTIAL FINANCIAL INC

$60,500

0.07%

34,375

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PGIM Quantitative Solutions LLC	34,375	$60,500	100.0%	Defined

US BANCORP \DE\

$60,306

0.07%

34,265

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
US BANK NATIONAL ASSOCIATION	34,265	$60,306	100.0%	Defined

CITADEL ADVISORS LLC

$60,016

0.07%

34,100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	34,100	$60,016	100.0%	Defined

&PARTNERS

$57,208

0.07%

32,505

Prime Capital Investment Advisors, LLC

$56,874

0.07%

32,315

Thrive Wealth Management, LLC

$56,320

0.07%

32,000

JANE STREET GROUP, LLC

$53,382

0.06%

30,331

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	30,331	$53,382	100.0%	Defined

AMERIPRISE FINANCIAL INC

$51,972

0.06%

29,530

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Columbia Management Investment Advisers, LLC	29,430	$51,796	99.7%	Defined
Ameriprise Financial Services, LLC	100	$176	0.3%	Defined

Vanguard Global Advisers, LLC

$51,217

0.06%

29,101

CREDIT AGRICOLE S A

$51,040

0.06%

29,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Credit Agricole Corporate & Investment Bank joint	29,000	$51,040	100.0%	Defined

Police & Firemen's Retirement System of New Jersey

$47,667

0.06%

27,084

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Capital	27,084	$47,667	100.0%	Defined

BANK OF MONTREAL /CAN/

$46,640

0.05%

26,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BMO NESBITT BURNS INC.	7,300	$12,848	27.5%	Defined
BMO PRIVATE INVESTMENT COUNSEL INC.	19,200	$33,792	72.5%	Defined

Creative Planning

$44,880

0.05%

25,500

Spark Investment Management LLC

$41,536

0.05%

23,600

MANUFACTURERS LIFE INSURANCE COMPANY, THE

$41,296

0.05%

23,464

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MANULIFE FINANCIAL CORP joint	23,464	$41,296	100.0%	Defined

RAYMOND JAMES FINANCIAL INC

$36,139

0.04%

20,534

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	5,000	$8,800	24.4%	Defined
Raymond James Financial Services Advisors, Inc.	15,534	$27,339	75.6%	Defined

Next Capital Management LLC

$35,200

0.04%

20,000

INTECH INVESTMENT MANAGEMENT LLC

$34,971

0.04%

19,870

LIBERTY WEALTH MANAGEMENT LLC

$34,320

0.04%

19,500

HighTower Advisors, LLC

$29,803

0.03%

16,934

China Universal Asset Management Co., Ltd.

$27,781

0.03%

15,785

Point72 Asset Management, L.P.

$27,753

0.03%

15,769

ProShare Advisors LLC

$26,891

0.03%

15,279

Modern Wealth Management, LLC

$26,400

0.03%

15,000

GREAT VALLEY ADVISOR GROUP, INC.

$25,192

0.03%

14,314

PINNACLE ASSOCIATES LTD

$22,709

0.03%

12,903

Pinnacle Wealth Management Advisory Group, LLC

$22,709

0.03%

12,903

HBK Sorce Advisory LLC

$21,725

0.03%

12,344

Key facts CIK 1619856 CUSIP 142038108 13F (30d) 5 filings 5 filers Visit website Investor relations