Stock Ownership/IT

GARTNER INC (IT): Ownership & Insider Activity

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

Reported Holders
30
13F filers
Aggregate Value
$1.7B
Across holders
Last Price
$202.78
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity20 increased9 reduced3 exited
Full exits: VOLORIDGE INVESTMENT MANAGEMENT, LLC, Grantham, Mayo, Van Otterloo & Co. LLC, Holocene Advisors, LP
Institutional Holders of IT
↗
30 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund4.18M$541.2M31.0%0.2%Added+$537.0MQ2 2026
HARRIS ASSOCIATES L P
CIK 0000813917
Institutional Manager2.85M$369.0M21.1%0.5%Reduced$-37.5MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund2.13M$276.1M15.8%0.2%Added+$130.0MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund805K$104.3M6.0%0.0%Added+$100.2MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund590K$76.5M4.4%0.0%Added+$58.9MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund586K$75.9M4.3%0.0%Added+$74.9MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund534K$69.2M4.0%0.1%Added+$29.7MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund410K$53.1M3.0%0.0%Added+$51.2MQ2 2026
BALYASNY ASSET MANAGEMENT LLC
CIK 0001218710
Hedge Fund308K$40.0M2.3%0.0%Added+$38.8MQ2 2026
Gotham Asset Management, LLC
CIK 0001510387
Hedge Fund199K$25.8M1.5%0.1%Reduced$-14.9MQ2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$541.2M· 31.0% of total· 0.2% port· 4.18M sh· +$537.0M QoQ· Q2 2026
HARRIS ASSOCIATES L PReduced
Institutional Manager
$369.0M· 21.1% of total· 0.5% port· 2.85M sh· $-37.5M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$276.1M· 15.8% of total· 0.2% port· 2.13M sh· +$130.0M QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$104.3M· 6.0% of total· 0.0% port· 805K sh· +$100.2M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$76.5M· 4.4% of total· 0.0% port· 590K sh· +$58.9M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$75.9M· 4.3% of total· 0.0% port· 586K sh· +$74.9M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$69.2M· 4.0% of total· 0.1% port· 534K sh· +$29.7M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$53.1M· 3.0% of total· 0.0% port· 410K sh· +$51.2M QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$40.0M· 2.3% of total· 0.0% port· 308K sh· +$38.8M QoQ· Q2 2026
Gotham Asset Management, LLCReduced
Hedge Fund
$25.8M· 1.5% of total· 0.1% port· 199K sh· $-14.9M QoQ· Q2 2026
Qube Research & Technologies LtdAdded
Hedge Fund
$23.4M· 1.3% of total· 0.0% port· 181K sh· — QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$22.8M· 1.3% of total· 0.0% port· 176K sh· +$22.3M QoQ· Q2 2026
PRIMECAP MANAGEMENT CO/CA/Unchanged
Institutional Manager
$15.2M· 0.9% of total· 0.0% port· 117K sh· +$0 QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$12.9M· 0.7% of total· 0.0% port· 99K sh· +$2.7M QoQ· Q2 2026
PineBridge Investments, L.P.Reduced
Hedge Fund
$8.0M· 0.5% of total· 0.1% port· 30K sh· $-5.1M QoQ· Q3 2025
ADAGE CAPITAL PARTNERS GP, L.L.C.Added
Hedge Fund
$6.8M· 0.4% of total· 0.0% port· 53K sh· +$1.5M QoQ· Q2 2026
Ruffer LLPAdded
Hedge Fund
$6.1M· 0.3% of total· 0.2% port· 47K sh· +$2.6M QoQ· Q2 2026
Verition Fund Management LLCAdded
Hedge Fund
$5.2M· 0.3% of total· 0.0% port· 40K sh· — QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$3.0M· 0.2% of total· 0.0% port· 23K sh· +$1.9M QoQ· Q2 2026
CAXTON ASSOCIATES LLPAdded
Hedge Fund
$3.0M· 0.2% of total· 0.1% port· 23K sh· +$912K QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$2.9M· 0.2% of total· 0.0% port· 23K sh· +$892K QoQ· Q2 2026
Bridgewater Associates, LPAdded
Hedge Fund
$2.3M· 0.1% of total· 0.0% port· 17K sh· — QoQ· Q2 2026
Brevan Howard Capital Management LPReduced
Hedge Fund
$1.5M· 0.1% of total· 0.0% port· 11K sh· $-107K QoQ· Q2 2026
Woodline Partners LPReduced
Hedge Fund
$1.4M· 0.1% of total· 0.0% port· 11K sh· $-397K QoQ· Q2 2026
Ancora Advisors, LLCReduced
Hedge Fund
$1.1M· 0.1% of total· 0.0% port· 9K sh· $-51K QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$559K· 0.0% of total· 0.0% port· 4K sh· — QoQ· Q2 2026
Lighthouse Investment Partners, LLCAdded
Hedge Fund
$253K· 0.0% of total· 0.0% port· 2K sh· — QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$206K· 0.0% of total· 0.0% port· 2K sh· $-125K QoQ· Q2 2026
Walleye Capital LLCReduced
Hedge Fund
$73K· 0.0% of total· 0.0% port· 562 sh· $-873K QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$39K· 0.0% of total· 0.0% port· 294 sh· — QoQ· Q2 2026
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