803 hedge funds and large institutions have $19.8B invested in Gartner in 2025 Q4 according to their latest regulatory filings, with 134 funds opening new positions, 257 increasing their positions, 319 reducing their positions, and 105 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more first-time investments, than exits

New positions opened: | Existing positions closed:

more ownership

Funds ownership:

more funds holding

Funds holding:

5% more capital invested

Capital invested by funds: $18.9B → $19.8B (+$910M)

13% less funds holding in top 10

Funds holding in top 10: 87 (-1)

19% less repeat investments, than reductions

Existing positions increased: 257 | Existing positions reduced: 319

Holders
803
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$99.8M
Puts
$58.2M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
D.E. Shaw & Co
101
D.E. Shaw & Co
New York
$17.1M
Citadel Advisors
102
Citadel Advisors
Florida
$17.1M
State Board of Administration of Florida Retirement System
103
State Board of Administration of Florida Retirement System
Florida
$16.9M
VRS
104
Virginia Retirement Systems
Virginia
$16.6M
Adage Capital Partners
105
Adage Capital Partners
Massachusetts
$16.4M
Aviva
106
Aviva
United Kingdom
$16.2M
SBCM
107
Schwerin Boyle Capital Management
Massachusetts
$16.1M
PPF
108
PFA Pension Forsikringsaktieselskab
$16.1M
SG Americas Securities
109
SG Americas Securities
New York
$15.4M
Canada Life
110
Canada Life
Manitoba, Canada
$15.4M
CII
111
Capital International Inc
California
$15.2M
FGP
112
Foyston, Gordon, & Payne
Ontario, Canada
$15.1M
Cerity Partners
113
Cerity Partners
New York
$14.9M
GCM
114
Geneva Capital Management
Wisconsin
$14.8M
Russell Investments Group
115
Russell Investments Group
United Kingdom
$14.7M
DCP
116
Distillate Capital Partners
Illinois
$14.6M
Swedbank
117
Swedbank
Sweden
$14.6M
Carson Wealth (CWM LLC)
118
Carson Wealth (CWM LLC)
Nebraska
$14.6M
New York State Teachers Retirement System (NYSTRS)
119
New York State Teachers Retirement System (NYSTRS)
New York
$14.5M
Mariner
120
Mariner
Kansas
$14.5M
DB
121
Danske Bank
Denmark
$14.4M
Capital Fund Management (CFM)
122
Capital Fund Management (CFM)
France
$14.2M
SLAM
123
Swiss Life Asset Management
$13.8M
Janney Montgomery Scott
124
Janney Montgomery Scott
Pennsylvania
$13.1M
BA
125
Bridgewater Associates
Connecticut
$12.4M