James J. Kavanaugh

Companies

• T-Mobile USBoard member Jul 20, 2023 to now¹
• IBMChief financial officer Feb 2, 2018 to now²
• IBMVice President and Controller May 6, 2008 to Jan 2, 2018³

Holdings

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

Shares held

• IBM IBM175,392 shares⁴$43.1M at $246.02Feb 21, 2026
• T-Mobile US TMUS5,461 shares⁵$837.6K at $153.39Jun 16, 2026

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

Recent filings

• Jun 16, 2026Granted 1,384 shares of T-Mobile US⁵
• Feb 21, 2026Shares withheld for tax 1,442 shares at $256.42 of IBM⁴
• Feb 21, 2026Exercised options 2,877 shares of IBM⁴
• Feb 21, 2026Shares withheld for tax 1,792 shares at $256.42 of IBM⁴
• Feb 21, 2026Exercised options 3,575 shares of IBM⁴
• Feb 21, 2026Shares withheld for tax 1,694 shares at $256.42 of IBM⁴
• Feb 21, 2026Exercised options 3,380 shares of IBM⁴
• Feb 18, 2026Shares withheld for tax 1,363 shares at $258.68 of IBM⁶
• Feb 18, 2026Exercised options 2,719 shares of IBM⁶
• Feb 1, 2026Shares withheld for tax 23,816 shares at $303.75 of IBM⁷
• Feb 1, 2026Granted 48,474 shares of IBM⁷
• Nov 5, 2025Gift 6,700 shares of IBM⁸
• Jun 8, 2025Shares withheld for tax 2,588 shares at $268.85 of IBM⁹
• Jun 8, 2025Exercised options 5,163 shares of IBM⁹
• Jun 6, 2025Granted 1,038 shares of T-Mobile US¹⁰
• Feb 21, 2025Shares withheld for tax 1,442 shares at $262.93 of IBM¹¹
• Feb 21, 2025Exercised options 2,877 shares of IBM¹¹
• Feb 21, 2025Shares withheld for tax 1,792 shares at $262.93 of IBM¹¹
• Feb 21, 2025Exercised options 3,575 shares of IBM¹¹
• Feb 21, 2025Shares withheld for tax 1,694 shares at $262.93 of IBM¹¹
• Feb 21, 2025Exercised options 3,380 shares of IBM¹¹
• Feb 1, 2025Shares withheld for tax 18,336 shares at $254.56 of IBM¹²
• Feb 1, 2025Granted 37,719 shares of IBM¹²
• Jun 13, 2024Granted 1,457 shares of T-Mobile US¹³
• Jun 8, 2024Shares withheld for tax 2,588 shares at $169.71 of IBM¹⁴

Trade performance

Returns are price-only (no dividends), measured from the trade date.