William James Wartinbee Iii.

Companies

• GartnerSVP, Global Sales Strat & Ops Feb 7, 2023 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Gartner IT8,983 shares²$1.9M at $206.34Feb 9, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Feb 9, 2026Shares withheld for tax 156 shares at $159.75 of Gartner²
• Feb 9, 2026Exercised options 496 shares of Gartner²
• Feb 9, 2026Shares withheld for tax 94 shares at $159.75 of Gartner²
• Feb 9, 2026Exercised options 301 shares of Gartner²
• Feb 8, 2026Shares withheld for tax 174 shares at $156.33 of Gartner³
• Feb 8, 2026Exercised options 474 shares of Gartner³
• Feb 6, 2026Shares withheld for tax 129 shares at $156.33 of Gartner³
• Feb 6, 2026Exercised options 346 shares of Gartner³
• Dec 15, 2025Gift 46 shares of Gartner⁴
• May 13, 2025Sold 538 shares at $449.09 of Gartner⁵
• Feb 10, 2025Shares withheld for tax 152 shares at $528.87 of Gartner⁶
• Feb 10, 2025Exercised options 484 shares of Gartner⁶
• Feb 9, 2025Shares withheld for tax 156 shares at $529.29 of Gartner⁷
• Feb 9, 2025Exercised options 497 shares of Gartner⁷
• Feb 9, 2025Shares withheld for tax 95 shares at $529.29 of Gartner⁷
• Feb 9, 2025Exercised options 301 shares of Gartner⁷
• Feb 8, 2025Shares withheld for tax 161 shares at $529.29 of Gartner⁷
• Feb 8, 2025Exercised options 474 shares of Gartner⁷
• Dec 6, 2024Sold 189 shares at $523.54 of Gartner⁸
• Nov 15, 2024Shares withheld for tax 73 shares at $522.86 of Gartner⁹
• Nov 15, 2024Exercised options 157 shares of Gartner⁹
• Sep 9, 2024Gift 45 shares of Gartner¹⁰
• Sep 9, 2024Sold 210 shares at $491.79 of Gartner¹⁰
• Jul 31, 2024Sold 299 shares at $499.11 of Gartner¹¹
• Feb 10, 2024Shares withheld for tax 152 shares at $463.52 of Gartner¹²