Stock Ownership/IBM

INTERNATIONAL BUSINESS MACHS (IBM): Ownership & Insider Activity

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

Reported Holders
35
13F filers
Aggregate Value
$2.7B
Across holders
Last Price
$231.04
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity20 increased14 reduced4 exited
Full exits: Schonfeld Strategic Advisors LLC, JUPITER ASSET MANAGEMENT LTD, Eisler Capital (UK) Ltd., Parallax Volatility Advisers, L.P.
Institutional Holders of IBM
↗
35 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund2.69M$742.2M27.5%0.3%Added$-5.3BQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund1.70M$478.9M17.7%0.4%Added+$354.0MQ2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
Hedge Fund898K$252.6M9.4%0.4%Reduced$-11.0MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund757K$212.9M7.9%0.0%Added$-132.4MQ2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund629K$176.9M6.5%0.3%Added+$163.5MQ2 2026
TCW GROUP INC
CIK 0000850401
Hedge Fund497K$139.7M5.2%0.9%Added+$113.9MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund464K$130.5M4.8%0.0%Added$-78.7MQ2 2026
Woodline Partners LP
CIK 0001784547
Hedge Fund340K$95.7M3.5%0.3%Reduced$-126KQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund338K$95.1M3.5%0.0%Reduced+$33.3MQ2 2026
Walleye Capital LLC
CIK 0001758720
Hedge Fund300K$84.4M3.1%0.3%Added+$79.8MQ2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$742.2M· 27.5% of total· 0.3% port· 2.69M sh· $-5.3B QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$478.9M· 17.7% of total· 0.4% port· 1.70M sh· +$354.0M QoQ· Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Reduced
Hedge Fund
$252.6M· 9.4% of total· 0.4% port· 898K sh· $-11.0M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$212.9M· 7.9% of total· 0.0% port· 757K sh· $-132.4M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$176.9M· 6.5% of total· 0.3% port· 629K sh· +$163.5M QoQ· Q2 2026
TCW GROUP INCAdded
Hedge Fund
$139.7M· 5.2% of total· 0.9% port· 497K sh· +$113.9M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$130.5M· 4.8% of total· 0.0% port· 464K sh· $-78.7M QoQ· Q2 2026
Woodline Partners LPReduced
Hedge Fund
$95.7M· 3.5% of total· 0.3% port· 340K sh· $-126K QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$95.1M· 3.5% of total· 0.0% port· 338K sh· +$33.3M QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$84.4M· 3.1% of total· 0.3% port· 300K sh· +$79.8M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$70.0M· 2.6% of total· 0.0% port· 249K sh· +$13.5M QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$56.2M· 2.1% of total· 0.2% port· 200K sh· — QoQ· Q2 2026
PineBridge Investments, L.P.Added
Hedge Fund
$29.5M· 1.1% of total· 0.2% port· 105K sh· +$13.2M QoQ· Q3 2025
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$15.5M· 0.6% of total· 0.0% port· 55K sh· +$4.2M QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$14.1M· 0.5% of total· 0.0% port· 50K sh· +$6.1M QoQ· Q2 2026
DODGE & COXReduced
Institutional Manager
$12.9M· 0.5% of total· 0.0% port· 46K sh· $-166K QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$12.6M· 0.5% of total· 0.0% port· 45K sh· $-34.2M QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$11.2M· 0.4% of total· 0.0% port· 40K sh· +$1.9M QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$10.5M· 0.4% of total· 0.0% port· 37K sh· +$10.1M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$10.1M· 0.4% of total· 0.0% port· 36K sh· +$4.5M QoQ· Q2 2026
Grantham, Mayo, Van Otterloo & Co. LLCAdded
Institutional Manager
$8.7M· 0.3% of total· 0.0% port· 31K sh· +$6.3M QoQ· Q2 2026
Clearbridge Investments, LLCReduced
Hedge Fund
$8.3M· 0.3% of total· 0.0% port· 29K sh· $-48K QoQ· Q2 2026
FRED ALGER MANAGEMENT, LLCAdded
Hedge Fund
$6.1M· 0.2% of total· 0.0% port· 22K sh· — QoQ· Q2 2026
CAPSTONE INVESTMENT ADVISORS, LLCReduced
Hedge Fund
$5.6M· 0.2% of total· 0.0% port· 20K sh· $-59.9M QoQ· Q2 2026
Fisher Asset Management, LLCReduced
Institutional Manager
$5.5M· 0.2% of total· 0.0% port· 20K sh· $-1.4M QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALReduced
Institutional Manager
$4.8M· 0.2% of total· 0.0% port· 17K sh· $-29K QoQ· Q2 2026
Verition Fund Management LLCAdded
Hedge Fund
$2.9M· 0.1% of total· 0.0% port· 10K sh· $-3.0M QoQ· Q2 2026
Bridgewater Advisors Inc.Reduced
Hedge Fund
$2.2M· 0.1% of total· 0.1% port· 10K sh· $-81K QoQ· Q2 2026
Ancora Advisors, LLCReduced
Hedge Fund
$1.8M· 0.1% of total· 0.0% port· 7K sh· $-86K QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$1.4M· 0.1% of total· 0.0% port· 5K sh· — QoQ· Q2 2026
EAGLE CAPITAL MANAGEMENT LLCUnchanged
Hedge Fund
$759K· 0.0% of total· 0.0% port· 3K sh· +$0 QoQ· Q2 2026
ICONIQ Capital, LLCAdded
Family Office
$471K· 0.0% of total· 0.0% port· 2K sh· — QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$436K· 0.0% of total· 0.0% port· 2K sh· $-33.3M QoQ· Q2 2026
Holocene Advisors, LPAdded
Hedge Fund
$406K· 0.0% of total· 0.0% port· 1K sh· — QoQ· Q2 2026
Alphadyne Asset Management LPReduced
Hedge Fund
$366K· 0.0% of total· 0.0% port· 1K sh· $-2.8M QoQ· Q2 2026
1–10 of 35
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