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
AAM
851
Azzad Asset Management
Virginia
BAM
852
Blueshift Asset Management
New Jersey
Simplex Trading
853
Simplex Trading
Illinois
SF
854
Summit Financial
New Jersey
SPA
855
Sherbrooke Park Advisers
New York
MG
856
Mather Group
Illinois
TP
857
Tranquility Partners
Tennessee
Hudson Bay Capital Management
858
Hudson Bay Capital Management
Connecticut
RP
859
Riverwater Partners
Wisconsin
DC
860
Davenport & Co
Virginia
CIC
861
Chilton Investment Company
Connecticut
AAM
862
Advisors Asset Management
Colorado
ASN
863
Advisory Services Network
Georgia
SC
864
SummitTX Capital
Texas
HTC
865
Haverford Trust Company
Pennsylvania
VF
866
Vest Financial
Virginia
CPC
867
CFC Planning Company
Indiana
GIA
868
Gateway Investment Advisers
Ohio
WAG
869
Wallace Advisory Group
California
SRC
870
Shufro Rose & Co
New York
CI Investments Inc
871
CI Investments Inc
Ontario, Canada
PS
872
Principal Securities
Iowa
TIM
873
Tortoise Investment Management
New York
CPBTD
874
Central Pacific Bank - Trust Division
Hawaii
UOTTAIMCU
875
University of Texas/Texas AM Investment Management Co (UTIMCO)
Texas