791 hedge funds and large institutions have $18.9B invested in Gartner in 2025 Q3 according to their latest regulatory filings, with 130 funds opening new positions, 254 increasing their positions, 314 reducing their positions, and 220 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

less ownership

Funds ownership:

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

36% less capital invested

Capital invested by funds: $29.7B → $18.9B (-$10.8B)

38% less funds holding in top 10

Funds holding in top 10: 138 (-5)

41% less first-time investments, than exits

New positions opened: 130 | Existing positions closed: 220

Holders
791
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
8
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$81.5M
Puts
$70.9M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
QT
801
Quantbot Technologies
New York
SPS
802
Susquehanna Portfolio Strategies
Pennsylvania
Axa
803
Axa
France
PCM
804
Prana Capital Management
Connecticut
PMAM
805
Picton Mahoney Asset Management
Ontario, Canada
PIM
806
Progressive Investment Management
Oregon
JF
807
Jump Financial
Illinois
MF
808
Magnetar Financial
Illinois
AAMU
809
AEGON Asset Management (UK)
United Kingdom
OQS
810
Occudo Quantitative Strategies
Florida
Caisse de Depot et Placement du Quebec (CDPQ)
811
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
DWM
812
Dakota Wealth Management
Florida
CAU
813
Caxton Associates (UK)
BFG
814
Berger Financial Group
Minnesota
ACM
815
Argent Capital Management
Missouri
XT
816
XTX Topco
Cayman Islands
TAM
817
Thematics Asset Management
France
GLAM
818
Gardner Lewis Asset Management
Pennsylvania
FCM
819
Fieldview Capital Management
Michigan
MWM
820
Moran Wealth Management
Florida
ET
821
Entropy Technologies
New York
SFM
822
Signet Financial Management
New Jersey
Jennison Associates
823
Jennison Associates
New York
CCIA
824
Campbell & Co Investment Adviser
Maryland
GCM
825
Graham Capital Management
Connecticut