Stock Ownership/COST

COSTCO WHOLESALE CORPORATION (COST): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in COST · Consumer Staples. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
46
13F filers
Aggregate Value
$11.4B
Across holders
Last Price
$971.40
2026-08-24
Sector
Consumer Staples
GICS
Quarterly fund activity23 increased21 reduced4 exited
Full exits: Point72 Asset Management, L.P., RENAISSANCE TECHNOLOGIES LLC, Magnetar Financial LLC, HBK INVESTMENTS L P
Institutional Holders of COST
↗
46 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
Fisher Asset Management, LLC
CIK 0000850529
Institutional Manager3.25M$3.0B26.7%0.9%Added+$31.0MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund1.25M$1.2B10.3%0.4%Added+$1.2BQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund1.17M$1.1B9.6%0.9%Added+$1.1BQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund1.01M$941.3M8.3%0.7%Added+$933.8MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund873K$817.0M7.2%0.4%Reduced+$729.6MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund510K$476.8M4.2%0.1%Reduced$-1.4BQ2 2026
Man Group plc
CIK 0001637460
Hedge Fund438K$409.5M3.6%0.7%Added+$367.2MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund436K$407.8M3.6%0.2%Reduced$-57.8MQ2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund433K$404.7M3.6%0.6%Added$-2.2BQ2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
Hedge Fund396K$370.1M3.3%0.5%Reduced$-1.9MQ2 2026
Fisher Asset Management, LLCAdded
Institutional Manager
$3.0B· 26.7% of total· 0.9% port· 3.25M sh· +$31.0M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$1.2B· 10.3% of total· 0.4% port· 1.25M sh· +$1.2B QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$1.1B· 9.6% of total· 0.9% port· 1.17M sh· +$1.1B QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$941.3M· 8.3% of total· 0.7% port· 1.01M sh· +$933.8M QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$817.0M· 7.2% of total· 0.4% port· 873K sh· +$729.6M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$476.8M· 4.2% of total· 0.1% port· 510K sh· $-1.4B QoQ· Q2 2026
Man Group plcAdded
Hedge Fund
$409.5M· 3.6% of total· 0.7% port· 438K sh· +$367.2M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPReduced
Hedge Fund
$407.8M· 3.6% of total· 0.2% port· 436K sh· $-57.8M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$404.7M· 3.6% of total· 0.6% port· 433K sh· $-2.2B QoQ· Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Reduced
Hedge Fund
$370.1M· 3.3% of total· 0.5% port· 396K sh· $-1.9M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$356.2M· 3.1% of total· 0.1% port· 381K sh· +$220.9M QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$284.4M· 2.5% of total· 0.4% port· 304K sh· +$12.9M QoQ· Q2 2026
Qube Research & Technologies LtdAdded
Hedge Fund
$268.0M· 2.4% of total· 0.2% port· 286K sh· +$98.7M QoQ· Q2 2026
STEADFAST CAPITAL MANAGEMENT LPAdded
Hedge Fund
$219.0M· 1.9% of total· 6.7% port· 234K sh· +$180.8M QoQ· Q2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLCReduced
Hedge Fund
$161.7M· 1.4% of total· 0.7% port· 173K sh· $-105.1M QoQ· Q2 2026
TCW GROUP INCReduced
Hedge Fund
$146.1M· 1.3% of total· 1.0% port· 156K sh· +$18.7M QoQ· Q2 2026
Holocene Advisors, LPAdded
Hedge Fund
$133.4M· 1.2% of total· 0.3% port· 143K sh· — QoQ· Q2 2026
Woodline Partners LPAdded
Hedge Fund
$125.3M· 1.1% of total· 0.4% port· 134K sh· +$324K QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$108.3M· 1.0% of total· 0.1% port· 116K sh· $-43.0M QoQ· Q2 2026
PineBridge Investments, L.P.Added
Hedge Fund
$60.6M· 0.5% of total· 0.4% port· 65K sh· +$11.6M QoQ· Q3 2025
AXIOM INVESTORS LLC /DEAdded
Hedge Fund
$54.0M· 0.5% of total· 0.5% port· 58K sh· +$4.3M QoQ· Q2 2026
JUPITER ASSET MANAGEMENT LTDReduced
Hedge Fund
$43.3M· 0.4% of total· 0.2% port· 46K sh· $-14.0M QoQ· Q2 2026
MARKEL CORP (MKL)Unchanged
Hedge Fund
$36.6M· 0.3% of total· 0.3% port· 39K sh· +$0 QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$32.7M· 0.3% of total· 0.2% port· 35K sh· — QoQ· Q2 2026
Walleye Capital LLCReduced
Hedge Fund
$29.7M· 0.3% of total· 0.1% port· 32K sh· +$21.4M QoQ· Q2 2026
Clearbridge Investments, LLCReduced
Hedge Fund
$29.2M· 0.3% of total· 0.0% port· 31K sh· $-3.1M QoQ· Q2 2026
Bridgewater Associates, LPReduced
Hedge Fund
$24.8M· 0.2% of total· 0.1% port· 27K sh· $-1.0M QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$22.6M· 0.2% of total· 0.1% port· 24K sh· +$6.3M QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$22.3M· 0.2% of total· 0.2% port· 24K sh· +$13.8M QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$18.4M· 0.2% of total· 0.0% port· 20K sh· $-22.3M QoQ· Q2 2026
Ancora Advisors, LLCReduced
Hedge Fund
$15.9M· 0.1% of total· 0.3% port· 17K sh· +$12.6M QoQ· Q2 2026
Verition Fund Management LLCReduced
Hedge Fund
$13.0M· 0.1% of total· 0.1% port· 14K sh· +$11.9M QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$10.2M· 0.1% of total· 1.0% port· 11K sh· — QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$7.5M· 0.1% of total· 0.0% port· 8K sh· $-6.1M QoQ· Q2 2026
Alphadyne Asset Management LPAdded
Hedge Fund
$5.9M· 0.1% of total· 0.1% port· 6K sh· $-6.1M QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALReduced
Institutional Manager
$4.8M· 0.0% of total· 0.0% port· 5K sh· $-1.6M QoQ· Q2 2026
Schonfeld Strategic Advisors LLCReduced
Hedge Fund
$4.0M· 0.0% of total· 0.0% port· 4K sh· $-12.5M QoQ· Q2 2026
Parallax Volatility Advisers, L.P.Added
Hedge Fund
$3.3M· 0.0% of total· 0.0% port· 3K sh· $-87.1M QoQ· Q2 2026
Bridgewater Advisors Inc.Reduced
Hedge Fund
$1.6M· 0.0% of total· 0.1% port· 2K sh· $-86K QoQ· Q2 2026
FRED ALGER MANAGEMENT, LLCReduced
Hedge Fund
$941K· 0.0% of total· 0.0% port· 1K sh· $-342K QoQ· Q2 2026
Lighthouse Investment Partners, LLCReduced
Hedge Fund
$774K· 0.0% of total· 0.0% port· 827 sh· +$63K QoQ· Q2 2026
CAPSTONE INVESTMENT ADVISORS, LLCReduced
Hedge Fund
$665K· 0.0% of total· 0.0% port· 711 sh· $-37.9M QoQ· Q2 2026
ArrowMark Colorado Holdings LLCUnchanged
Hedge Fund
$461K· 0.0% of total· 0.0% port· 493 sh· +$0 QoQ· Q2 2026
HARRIS ASSOCIATES L PReduced
Institutional Manager
$335K· 0.0% of total· 0.0% port· 358 sh· $-4K QoQ· Q2 2026
Grantham, Mayo, Van Otterloo & Co. LLCAdded
Institutional Manager
$217K· 0.0% of total· 0.0% port· 232 sh· +$22K QoQ· Q2 2026
CAXTON ASSOCIATES LLPReduced
Hedge Fund
$211K· 0.0% of total· 0.0% port· 226 sh· $-2.0M QoQ· Q2 2026
1–10 of 46
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