778 hedge funds and large institutions have $18.9B invested in Gartner in 2025 Q3 according to their latest regulatory filings, with 132 funds opening new positions, 245 increasing their positions, 310 reducing their positions, and 217 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)

39% less first-time investments, than exits

New positions opened: 132 | Existing positions closed: 217

Holders
778
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
Aberdeen Group
101
Aberdeen Group
United Kingdom
$19.1M
Russell Investments Group
102
Russell Investments Group
United Kingdom
$18.6M
GCM
103
Geneva Capital Management
Wisconsin
$18.3M
Connor, Clark & Lunn Investment Management (CC&L)
104
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$18.1M
Adage Capital Partners
105
Adage Capital Partners
Massachusetts
$18.1M
State Board of Administration of Florida Retirement System
106
State Board of Administration of Florida Retirement System
Florida
$17.2M
New York State Teachers Retirement System (NYSTRS)
107
New York State Teachers Retirement System (NYSTRS)
New York
$17.1M
SBCM
108
Schwerin Boyle Capital Management
Massachusetts
$17M
Aviva
109
Aviva
United Kingdom
$16.6M
Renaissance Technologies
110
Renaissance Technologies
New York
$16.5M
SEI Investments
111
SEI Investments
Pennsylvania
$16.4M
Citigroup
112
Citigroup
New York
$15.8M
BA
113
Bridgewater Associates
Connecticut
$15.7M
SWC
114
Square Wave Capital
New York
$15.3M
DCP
115
Distillate Capital Partners
Illinois
$15.2M
Swedbank
116
Swedbank
Sweden
$15.1M
IC
117
IEQ Capital
California
$15M
Skandinaviska Enskilda Banken (SEB)
118
Skandinaviska Enskilda Banken (SEB)
Sweden
$14.5M
Universal-Beteiligungs- und Servicegesellschaft
119
Universal-Beteiligungs- und Servicegesellschaft
Germany
$14.5M
AAF
120
Andra AP-fonden
Sweden
$14.5M
Canada Pension Plan Investment Board
121
Canada Pension Plan Investment Board
Ontario, Canada
$14.1M
DB
122
Danske Bank
Denmark
$13M
GIG
123
Goodnow Investment Group
Connecticut
$12.9M
MIF
124
Mediolanum International Funds
Ireland
$12.8M
BMSSC
125
B. Metzler seel. Sohn & Co
Germany
$12.7M