IT
GARTNER INC
Services-Management ServicesNYSELarge accelerated filer
Total Trades
173
Buys
3
Sells
142
Largest Trade
N/A
Insiders
22
Institutional Funds
704
Inst. Value
$1M+
Activist Filings
15
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| FUCHS ANNE SUTHERLAND | Director | SELL | $100K–$500K | 500 | $505.28 | Aug 2, 2024 |
| Wartinbee William James III | EVP | SELL | $100K–$500K | 299 | $499.11 | Aug 2, 2024 |
| Sribar Valentin | EVP | SELL | $100K–$500K | 500 | $505.00 | Aug 2, 2024 |
| SMITH JAMES C | Director | SELL | $1M+ | 10K | $503.54 | Aug 2, 2024 |
| HALL EUGENE A | Chairman and CEO | EXERCISE | $1M+ | 89K | $154.31 | Aug 2, 2024 |
| HALL EUGENE A | Chairman and CEO | SELL | $1M+ | 12K | $504.84 | Aug 2, 2024 |
| SMITH JAMES C | Director | SELL | $1M+ | 10K | $439.29 | Jun 10, 2024 |
| FUCHS ANNE SUTHERLAND | Director | SELL | $100K–$500K | 705 | $428.99 | Jun 6, 2024 |
| Dawkins Alwyn | EVP | SELL | $100K–$500K | 800 | $454.57 | May 24, 2024 |
| Dawkins Alwyn | EVP | SELL | $100K–$500K | 600 | $447.63 | May 23, 2024 |
| SMITH JAMES C | Director | SELL | $1M+ | 10K | $455.20 | May 22, 2024 |
| Genovese Yvonne | EVP | SELL | $100K–$500K | 439 | $456.13 | May 22, 2024 |
| Jain Akhil | EVP, Consulting | SELL | $100K–$500K | 250 | $464.55 | Mar 1, 2024 |
| Allard Kenneth | EVP, Digital Markets | EXERCISE | $100K–$500K | 2K | $154.31 | Mar 1, 2024 |
| Allard Kenneth | EVP, Digital Markets | SELL | $100K–$500K | 720 | $464.88 | Mar 1, 2024 |
| SMITH JAMES C | Director | SELL | $1M+ | 10K | $459.68 | Feb 29, 2024 |
| Genovese Yvonne | EVP | SELL | $100K–$500K | 560 | $457.37 | Feb 27, 2024 |
| Beck Joseph P. | EVP | SELL | $500K+ | 2K | $459.24 | Feb 27, 2024 |
| SMITH JAMES C | Director | SELL | $1M+ | 10K | $457.50 | Feb 26, 2024 |
| Sribar Valentin | EVP | SELL | $100K–$500K | 682 | $453.00 | Feb 20, 2024 |
| SMITH JAMES C | Director | SELL | $1M+ | 10K | $461.31 | Feb 13, 2024 |
| Herkes Claire | EVP, Conferences | SELL | $50K–$100K | 154 | $431.64 | Nov 30, 2023 |
| Dawkins Alwyn | EVP | SELL | $500K+ | 1K | $428.91 | Nov 29, 2023 |
| Jain Akhil | EVP, Consulting | SELL | $100K–$500K | 250 | $420.47 | Nov 22, 2023 |
| BRESSLER RICHARD J | Director | SELL | $1M+ | 6K | $418.97 | Nov 20, 2023 |
| BRESSLER RICHARD J | Director | SELL | $1M+ | 13K | $421.63 | Nov 16, 2023 |
| SMITH JAMES C | Director | SELL | $1M+ | 11K | $409.74 | Nov 14, 2023 |
| Jain Akhil | EVP, Consulting | SELL | $15K–$50K | 100 | $400.56 | Nov 13, 2023 |
| Wartinbee William James III | SVP | SELL | $100K–$500K | 416 | $403.09 | Nov 13, 2023 |
| Dawkins Alwyn | EVP | SELL | $100K–$500K | 1K | $400.00 | Nov 13, 2023 |
| FUCHS ANNE SUTHERLAND | Director | SELL | $1M+ | 5K | $399.13 | Nov 13, 2023 |
| Kranich Robin B | EVP & CHRO | SELL | $100K–$500K | 1K | $400.00 | Nov 13, 2023 |
| SMITH JAMES C | Director | SELL | $1M+ | 20K | $391.49 | Nov 8, 2023 |
| Dawkins Alwyn | EVP | SELL | $500K+ | 2K | $391.30 | Nov 8, 2023 |
| Safian Craig | EVP & CFO | SELL | $1M+ | 5K | $400.05 | Nov 8, 2023 |
| Safian Craig | EVP & CFO | EXERCISE | $1M+ | 14K | $114.26 | Nov 8, 2023 |
| Beck Joseph P. | EVP | EXERCISE | $100K–$500K | 3K | $114.26 | Nov 8, 2023 |
| Beck Joseph P. | EVP | SELL | $1M+ | 4K | $388.07 | Nov 8, 2023 |
| HALL EUGENE A | CEO | SELL | $1M+ | 36K | $395.13 | Nov 8, 2023 |
| HALL EUGENE A | CEO | EXERCISE | $1M+ | 92K | $143.01 | Nov 8, 2023 |
| SMITH JAMES C | Director | SELL | $1M+ | 20K | $354.03 | Sep 11, 2023 |
| Kranich Robin B | EVP & CHRO | SELL | $100K–$500K | 716 | $349.78 | Sep 5, 2023 |
| Diliberto Michael Patrick | EVP | SELL | $1M+ | 8K | $335.09 | Aug 25, 2023 |
| Dawkins Alwyn | EVP | SELL | $100K–$500K | 887 | $356.78 | Jun 16, 2023 |
| Sribar Valentin | EVP | SELL | $100K–$500K | 420 | $353.80 | Jun 15, 2023 |
| Dawkins Alwyn | EVP | SELL | $100K–$500K | 1K | $354.03 | Jun 15, 2023 |
| FUCHS ANNE SUTHERLAND | Director | SELL | $100K–$500K | 893 | $339.35 | Jun 13, 2023 |
| HALL EUGENE A | CEO | SELL | $1M+ | 11K | $345.53 | Jun 13, 2023 |
| Hensel Scott | EVP Global Service… | SELL | $1M+ | 3K | $347.23 | Jun 12, 2023 |
| Hensel Scott | EVP Global Service… | EXERCISE | $500K+ | 8K | $114.26 | Jun 12, 2023 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 704 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| J. Stern & Co. LLP | 1.5M | $1M+ | SH |
| Capital International Investors | 4.0M | $1M+ | SH |
| STATE STREET CORP | 3.4M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 2.0M | $1M+ | SH |
| NORGES BANK | 1.2M | $1M+ | SH |
| HARRIS ASSOCIATES L P | 964K | $1M+ | SH |
| Sustainable Growth Advisers, LP | 853K | $1M+ | SH |
| Madison Asset Management, LLC | 675K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 506K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 459K | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 444K | $1M+ | SH |
| VICTORY CAPITAL MANAGEMENT INC | 406K | $1M+ | SH |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 378K | $1M+ | SH |
| Pacer Advisors, Inc. | 308K | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 304K | $1M+ | SH |
| NZS Capital, LLC | 301K | $1M+ | SH |
| NATIXIS ADVISORS, LLC | 276K | $1M+ | SH |
| Bollard Group LLC | 270K | $1M+ | SH |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 1.0M | $1M+ | SH |
| Resona Asset Management Co.,Ltd. | 245K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Capital International Investors
SC 13G · Feb 13, 2026
5.7%
4.1M shares
SC 13G/A · Nov 14, 2025
5.2%
3.9M shares
SC 13G/A · Jul 29, 2025
12.4%
9.6M shares
SC 13G/A · Jul 18, 2025
9.5%
7.3M shares
SC 13G/A · May 15, 2025
4.6%
3.6M shares
SC 13G/A · Nov 14, 2024
4.9%
3.8M shares
SC 13G/A · Feb 14, 2024
5.4%
4.2M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
11.4%
8.9M shares
SC 13G · Jan 26, 2024
7.8%
6.1M shares
SC 13G/A · Feb 14, 2023
6.0%
4.7M shares
SC 13G/A · Feb 10, 2023
3.5%
2.8M shares
SC 13G/A · Feb 3, 2023
7.9%
6.2M shares
Generation Investment Management LLP
SC 13G/A · Feb 14, 2022
2.7%
2.2M shares
SC 13G/A · Feb 14, 2022
6.2%
5.1M shares
SC 13G/A · Feb 1, 2022
7.6%
6.3M shares