Gartner Inc

Exchange: NYSE
Industry: Services-Management Services
SEC CIK: 0000749251

SEC filings (opens in a new tab)

In the last 90 days, Gartner Inc insiders filed 0 open-market purchases and 5 sales; 653 institutions reported holding it in 13F filings for Q2 2026, worth $9.69B in total; Harris Associates (Oakmark) is the only superinvestor holding it.

13F holders, Q3 2026

Institutional positions in Gartner Inc as of Sep 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 4; 0 vs. Q2 2026
Shares held: 859; +444 (+107.0%) vs. Q2 2026
Total value: $160.1K; +$106.3K (+197.6%) vs. Q2 2026
New holders: 1; 2 more added
Sold out: 1; 0 more reduced

649 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting IT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holders

Value held

Institutions holding IT and their total value by quarter
Quarter	Holders	Value
Q2 2026	653	$9.69B
Q1 2026	719	$12.0B
Q4 2025	815	$18.3B
Q3 2025	795	$18.9B
Q2 2025	898	$29.8B
Q1 2025	921	$30.8B
Q4 2024	952	$35.2B
Q3 2024	908	$35.8B
Q2 2024	876	$32.1B
Q1 2024	880	$34.0B
Q4 2023	866	$32.3B
Q3 2023	792	$24.8B
Q2 2023	780	$25.2B
Q1 2023	764	$23.8B
Q4 2022	768	$24.5B
Q3 2022	694	$20.4B
Q2 2022	692	$17.7B
Q1 2022	709	$22.0B
Q4 2021	691	$25.1B
Q3 2021	648	$23.1B
Q2 2021	611	$18.7B
Q1 2021	575	$14.6B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding Gartner Inc; share changes are against Q2 2026.

Institutions holding IT in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
American Century Companies Inc	–	–	–	–	Not filed
Assenagon Asset Management S.A.	–	–	–	–	Not filed
Isthmus Partners, LLC	–	–	–	–	Not filed
Impax Asset Management Group plc	–	–	–	–	Not filed
Canada Pension Plan Investment Board	–	–	–	–	Not filed
Allianz Asset Management GmbH	–	–	–	–	Not filed
State Board of Administration of Florida Retirement System	–	–	–	–	Not filed
Creative Planning	–	–	–	–	Not filed
Schwerin Boyle Capital Management Inc	–	–	–	–	Not filed
New York State Teachers Retirement System	–	–	–	–	Not filed
Standard Life Aberdeen plc	–	–	–	–	Not filed
Russell Investments Group, Ltd.	–	–	–	–	Not filed
Wedge Capital Management L L P	–	–	–	–	Not filed
SEI Investments Co	–	–	–	–	Not filed
Jefferies Financial Group Inc.	–	–	–	–	Not filed
Adage Capital Partners GP, L.L.C.	–	–	–	–	Not filed
Victory Capital Management Inc	–	–	–	–	Not filed
Glenmede Trust Co NA	–	–	–	–	Not filed
Lido Advisors, LLC	–	–	–	–	Not filed
Manufacturers Life Insurance Company, The	–	–	–	–	Not filed
Mercer Global Advisors Inc	–	–	–	–	Not filed
Ruffer LLP	–	–	–	–	Not filed
Bank of Nova Scotia	–	–	–	–	Not filed
XTX Topco Ltd	–	–	–	–	Not filed
Ameriprise Financial Inc	–	–	–	–	Not filed
APG Asset Management N.V.	–	–	–	–	Not filed
ING Groep NV	–	–	–	–	Not filed
Calamos Advisors LLC	–	–	–	–	Not filed
State of Wisconsin Investment Board	–	–	–	–	Not filed
Verition Fund Management LLC	–	–	–	–	Not filed
Wealth Enhancement Advisory Services, LLC	–	–	–	–	Not filed
New York State Common Retirement Fund	–	–	–	–	Not filed
Stifel Financial Corp	–	–	–	–	Not filed
Raymond James Financial Inc	–	–	–	–	Not filed
Mitsubishi UFJ Trust & Banking Corp	–	–	–	–	Not filed
South Dakota Investment Council	–	–	–	–	Not filed
Jupiter Topco LLC	–	–	–	–	Not filed
Chevy Chase Trust Holdings, Inc.	–	–	–	–	Not filed
Great West Life Assurance Co	–	–	–	–	Not filed
LPL Financial LLC	–	–	–	–	Not filed
Ensign Peak Advisors, Inc	–	–	–	–	Not filed
Captrust Financial Advisors	–	–	–	–	Not filed
Royal London Asset Management Ltd	–	–	–	–	Not filed
Triad Investment Management	–	–	–	–	Not filed
Fifth Third Bancorp	–	–	–	–	Not filed
CIBC Bancorp USA Inc.	–	–	–	–	Not filed
FORA Capital, LLC	–	–	–	–	Not filed
Police & Firemen's Retirement System of New Jersey	–	–	–	–	Not filed
Treasurer of the State of North Carolina	–	–	–	–	Not filed
Cetera Investment Advisers	–	–	–	–	Not filed
Geneva Capital Management LLC	–	–	–	–	Not filed
First Trust Advisors LP	–	–	–	–	Not filed
Sendero Wealth Management, LLC	–	–	–	–	Not filed
Fayez Sarofim & Co	–	–	–	–	Not filed
Universal- Beteiligungs- und Servicegesellschaft mbH	–	–	–	–	Not filed
Quadrature Capital Ltd	–	–	–	–	Not filed
Nicholas Company, Inc.	–	–	–	–	Not filed
Jump Financial, LLC	–	–	–	–	Not filed
Zurcher Kantonalbank (Zurich Cantonalbank)	–	–	–	–	Not filed
Crown Oak Advisors, LLC	–	–	–	–	Not filed
Toroso Investments, LLC	–	–	–	–	Not filed
Rockefeller Capital Management L.P.	–	–	–	–	Not filed
MAI Capital Management	–	–	–	–	Not filed
M&T Bank Corp	–	–	–	–	Not filed
Caxton Associates LLP	–	–	–	–	Not filed
National Bank of Canada	–	–	–	–	Not filed
Marshall Wace, LLP	–	–	–	–	Not filed
Toronto Dominion Bank	–	–	–	–	Not filed
Rafferty Asset Management, LLC	–	–	–	–	Not filed
Oppenheimer Asset Management Inc.	–	–	–	–	Not filed
State of New Jersey Common Pension Fund D	–	–	–	–	Not filed
Handelsbanken Fonder AB	–	–	–	–	Not filed
CI Private Wealth, LLC	–	–	–	–	Not filed
Twinbeech Capital LP	–	–	–	–	Not filed
Empowered Funds, LLC	–	–	–	–	Not filed
The PNC Financial Services Group, Inc.	–	–	–	–	Not filed
Winton Group Ltd	–	–	–	–	Not filed
CastleKnight Management LP	–	–	–	–	Not filed
Banco Bilbao Vizcaya Argentaria, S.A.	–	–	–	–	Not filed
Colony Group, LLC	–	–	–	–	Not filed
State of Alaska, Department of Revenue	–	–	–	–	Not filed
PensionDanmark Pensionsforsikringsaktieselskab	–	–	–	–	Not filed
Agf Management Ltd	–	–	–	–	Not filed
SRS Capital Advisors, Inc.	–	–	–	–	Not filed
Vanguard Investments Australia, Ltd.	–	–	–	–	Not filed
Czech National Bank	–	–	–	–	Not filed
Illinois Municipal Retirement Fund	–	–	–	–	Not filed
JustInvest LLC	–	–	–	–	Not filed
Public Employees Retirement System of Ohio	–	–	–	–	Not filed
GHP Investment Advisors, Inc.	–	–	–	–	Not filed
Arizona State Retirement System	–	–	–	–	Not filed
Bessemer Group Inc	–	–	–	–	Not filed
MetLife Investment Management	–	–	–	–	Not filed
New York Life Investment Management LLC	–	–	–	–	Not filed
Cardinal Capital Management	–	–	–	–	Not filed
Bridgewater Associates, LP	–	–	–	–	Not filed
State of Michigan Retirement System	–	–	–	–	Not filed
Catalyst Funds Management Pty Ltd	–	–	–	–	Not filed
Sumitomo Mitsui Trust Holdings, Inc.	–	–	–	–	Not filed
Elo Mutual Pension Insurance Co	–	–	–	–	Not filed