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Disclosery

CRBU CARIBOU BIOSCIENCES INC

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Stock (common), issuer CIK 1619856

133 managers (137 13F filers) reported a position in CRBU shares at 2026-03-31, 37,843,541 shares in all. 25 filers opened a position and 13 filers sold out during the quarter.

Managers
133
13F filers
137
New
25
Added
27
Reduced
39
Sold out
13
Shares held by filers
37,843,541

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Pfizer Inc4,690,431$8.35M3.5%013F-HRTimeline
VANGUARD GROUP INCgroup of 4 filers holding4,355,680$8.28M+4,313,567Timeline
RENAISSANCE TECHNOLOGIES LLC2,590,497$4.92M0.01%+950,64013F-HRTimeline
Kynam Capital Management, LP2,503,302$4.76M0.3%013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.2,143,085$4.07M<0.01%+2,06213F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP1,759,934$3.34M<0.01%+739,85513F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/1,297,167$2.46M<0.01%+303,98113F-HRTimelineGroup
Aberdeen Group plcin group Aberdeen Group plc1,212,541$2.3M<0.01%-176,36413F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP1,205,668$2.29M<0.01%+324,56313F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC1,074,421$2.04M<0.01%+307,41913F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,017,959$1.93M<0.01%+41,14613F-HRTimelineGroup
PFM Health Sciences, LP957,787$1.82M0.19%013F-HRTimeline
MACKENZIE FINANCIAL CORP942,786$1.79M<0.01%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC925,039$1.75M<0.01%+865,31713F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…836,903$1.59M<0.01%-194,47213F-HRTimelineGroup
FMR LLCin group FMR LLC723,959$1.38M<0.01%-2,00913F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP673,200$1.28M<0.01%-332,81013F-HRTimelineGroup
MAVERICK CAPITAL LTD652,542$1.24M0.01%013F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co559,642$1.06M<0.01%+4,01413F-HRTimelineGroup
Cambridge Investment Research Advisors,…547,014$1.04M<0.01%-34,77913F-HRTimeline
GSA CAPITAL PARTNERS LLP480,724$913K0.06%+109,35213F-HRTimeline
72 Investment Holdings, LLC474,067$901K1.82%013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP423,263$804K<0.01%013F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC376,589$716K<0.01%-112,54913F-HRTimelineGroup
Green Alpha Advisors, LLC373,650$710K0.7%-1,48913F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC358,941$682K<0.01%-465,35813F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd323,469$615K0.01%-89,91113F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN303,655$577K<0.01%+161,71213F-HR/ATimelineGroup
UBS Group AGin group UBS Group AG259,169$492K<0.01%-378,57613F-HRTimelineGroup
Bruce & Co., Inc.250,000$475K0.14%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY245,112$466K<0.01%-53,34413F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP217,735$414K<0.01%013F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.187,622$356K<0.01%-216,31613F-HRTimelineGroup
Qube Research & Technologies Ltd176,697$336K<0.01%-27,95513F-HRTimeline
MILESTONE ASSET MANAGEMENT, LLC162,076$308K0.06%-69,72313F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC159,033$302K<0.01%-356,39613F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC132,000$251K0.01%-16,50013F-HRTimeline
OMERS ADMINISTRATION Corp120,200$228K<0.01%-57,90013F-HRTimeline
NANO CAP NEW MILLENNIUM GROWTH FUND L P117,500$223K0.21%+5,00013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC112,453$214K<0.01%013F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding93,362$177K+3,574Timeline
Invesco Ltd.in group Invesco Ltd.83,502$159K<0.01%+48,43913F-HRTimelineGroup
Keystone Financial Group80,475$153K0.01%013F-HRTimeline
HRT FINANCIAL LP78,954$150K<0.01%new13F-HRTimeline
Man Group plcin group Man Group plc77,210$147K<0.01%+40,49813F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…65,062$124K<0.01%new13F-HRTimelineGroup
Nelson Capital Management, LLC58,685$112K0.01%013F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD57,900$110K<0.01%+50,50013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC56,923$108K<0.01%-17,64813F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC44,908$85.3K<0.01%-1,00013F-HRTimeline
RBF Capital, LLC40,000$76K<0.01%013F-HR/ATimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd39,556$75.2K<0.01%-119,76113F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…39,129$74.3K<0.01%-3,10013F-HRTimeline
Graham Capital Management, L.P.38,751$73.6K<0.01%-68,50213F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC36,609$70K<0.01%new13F-HRTimelineGroup
LPL Financial LLC35,274$67K<0.01%+19,75013F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC34,460$65.3K<0.01%013F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\34,265$65.1K<0.01%013F-HRTimelineGroup
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.33,262$63.2K<0.01%-11,57813F-HRTimelineGroup
Diametric Capital, LP32,793$62.3K0.02%new13F-HRTimeline
&PARTNERS32,505$61.8K<0.01%-3,00013F-HRTimeline
Prime Capital Investment Advisors, LLC32,315$61.4K<0.01%-1,61913F-HRTimeline
Catalyst Funds Management Pty Ltd32,200$61.2K0.01%new13F-HRTimeline
Thrive Wealth Management, LLC32,000$60.8K0.01%013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO31,008$58.9K<0.01%new13F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…30,741$58.4K<0.01%new13F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC30,586$58.1K<0.01%-1,72113F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC29,430$55.9K<0.01%-55,67413F-HR/ATimelineGroup
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A29,000$55.1K<0.01%013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…27,560$52.4K<0.01%+3,21313F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC26,713$50.8K<0.01%+5,02513F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC24,975$47.5K<0.01%-270,71013F-HRTimelineGroup
Schonfeld Strategic Advisors LLC23,969$45.5K<0.01%new13F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/21,000$39.9K<0.01%new13F-HRTimelineGroup
NINE MASTS CAPITAL Ltd20,612$39.2K0.01%new13F-HRTimeline
Next Capital Management LLC20,000$38K0.01%013F-HRTimeline
Westmount Partners, LLC19,609$37.3K0.01%new13F-HRTimeline
LIBERTY WEALTH MANAGEMENT LLC19,500$37K<0.01%013F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC19,000$36.1K<0.01%new13F-HRTimelineGroup
HighTower Advisors, LLC16,934$32.2K<0.01%013F-HRTimeline
China Universal Asset Management Co., L…16,587$31.5K<0.01%+1,35613F-HRTimeline
Creative Planningin group Creative Planning16,500$31.4K<0.01%-2,00013F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC16,373$31.1K<0.01%new13F-HRTimelineGroup
Modern Wealth Management, LLC15,000$29.9K<0.01%013F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC15,678$29.8K<0.01%-9,88313F-HRTimelineGroup
Bronte Capital Management Pty Ltd.15,627$29.7K<0.01%013F-HRTimeline
CTC Alternative Strategies, Ltd.15,076$28.6K0.07%new13F-HRTimeline
AXQ CAPITAL, LP15,000$28.5K<0.01%new13F-HRTimeline
Cetera Investment Advisers14,781$28.1K<0.01%-1,00013F-HRTimeline
GREAT VALLEY ADVISOR GROUP, INC.in group GREAT VALLEY ADVISOR GROUP, I…14,314$27.6K<0.01%new13F-HRTimelineGroup
TWO SIGMA SECURITIES, LLC13,052$24.8K<0.01%new13F-HRTimeline
PINNACLE ASSOCIATES LTD12,903$24.5K<0.01%013F-HRTimeline
Pinnacle Wealth Management Advisory Gro…12,903$24.5K<0.01%013F-HRTimeline
HBK Sorce Advisory LLC12,344$23.9K<0.01%013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp12,511$23.8K<0.01%-44513F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC12,460$23.7K<0.01%new13F-HRTimelineGroup
NewEdge Advisors, LLC10,925$20.8K<0.01%+52513F-HR/ATimeline
Quantinno Capital Management LP10,436$19.8K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.10,347$19.7K<0.01%-34613F-HRTimelineGroup
Chevy Chase Trust Holdings, LLCin group Chevy Chase Trust Holdings, L…10,000$19K<0.01%013F-HRTimelineGroup
Allworth Financial LP9,430$17.9K<0.01%013F-HRTimeline
Scarborough Advisors, LLC8,420$16K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…6,022$11.4K<0.01%-14,32913F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO6,089$10.5K<0.01%-51213F-HR/ATimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,420$8.4K<0.01%-213F-HRTimelineGroup
Larson Financial Group LLC4,066$7.72K<0.01%013F-HRTimeline
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp3,200$6.08K<0.01%013F-HRTimelineGroup
Hilton Head Capital Partners, LLC3,000$5.7K<0.01%013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.2,722$5.17K<0.01%013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA2,462$5K<0.01%-12,41213F-HRTimelineGroup
Nvest Wealth Strategies, Inc.2,525$4.8K<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS2,145$4.08K<0.01%+26713F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.2,099$3.99K<0.01%+26413F-HRTimeline
NFSG Corp2,000$3.8K<0.01%013F-HRTimeline
HARBOUR INVESTMENTS, INC.1,180$2.24K<0.01%+18013F-HRTimeline
TD Waterhouse Canada Inc.1,000$1.98K<0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC1,026$1.95K<0.01%013F-HRTimeline
Fortitude Family Office, LLC964$1.83K<0.01%+31813F-HRTimeline
Basecamp Wealth Advisors LLC937$1.78K<0.01%013F-HRTimeline
SUMMIT SECURITIES GROUP LLC809$1.54K<0.01%new13F-HRTimeline
Tradewinds Capital Management, LLC800$1.52K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP200$356<0.01%013F-HRTimelineGroup
Signature Equity Partners, LLC177$336<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC137$260<0.01%-43813F-HRTimelineGroup
Gen-Wealth Partners Inc136$258<0.01%013F-HRTimeline
Advisory Services Network, LLC114$217<0.01%new13F-HRTimeline
Farther Finance Advisors, LLC100$199<0.01%013F-HRTimeline
SBI Securities Co., Ltd.92$175<0.01%013F-HRTimeline
GILL CAPITAL PARTNERS, LLC75$143<0.01%new13F-HRTimeline
Arax Advisory Partners65$116<0.01%+413F-HRTimeline
Paladin Partners, LLC50$95<0.01%013F-HRTimeline
MCGUIRE CAPITAL ADVISORS INC10$19<0.01%013F-HRTimeline
Caitong International Asset Management …3$6<0.01%new13F-HRTimeline