John A. Kritzmacher

Companies

• UnisysBoard member Dec 14, 2022 to now¹
• InterDigitalBoard member Jun 19, 2009 to now²
• QualTek Services Inc.Board member Dec 13, 2022 to Dec 13, 2022³
• WileyChief financial officer Jul 8, 2013 to Jan 6, 2022⁴

Holdings

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

Shares held

• InterDigital IDCC16,361 shares⁵$5.3M at $323.05Jul 22, 2026
• Wiley WLY70,004 shares⁶$3.6M at $52.02Dec 31, 2021
• Unisys UIS209,839 shares⁷$467.9K at $2.23Feb 27, 2026

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

Recent filings

• Jul 22, 2026Granted 2 shares of InterDigital⁵
• Jun 12, 2026Sold 365 shares at $276.64 of InterDigital⁸
• Jun 11, 2026Returned to company 1 shares at $253.91 of InterDigital⁹
• Jun 10, 2026Granted 906 shares of InterDigital⁹
• Apr 22, 2026Granted 2 shares of InterDigital¹⁰
• Feb 27, 2026Granted 82,305 shares of Unisys⁷
• Jan 28, 2026Granted 2 shares of InterDigital¹¹
• Dec 23, 2025Sold 1,250 shares at $331.00 of InterDigital¹²
• Dec 9, 2025Sold 1,250 shares at $357.37 of InterDigital¹³
• Nov 25, 2025Sold 1,250 shares at $346.62 of InterDigital¹⁴
• Nov 11, 2025Sold 1,250 shares at $360.63 of InterDigital¹⁵
• Oct 22, 2025Granted 2 shares of InterDigital¹⁶
• Jul 23, 2025Granted 3 shares of InterDigital¹⁷
• Jun 11, 2025Granted 1,036 shares of InterDigital¹⁸
• Jun 9, 2025Sold 76 shares at $228.81 of InterDigital¹⁹
• Jun 9, 2025Sold 200 shares at $226.77 of InterDigital¹⁹
• Jun 9, 2025Sold 243 shares at $225.88 of InterDigital¹⁹
• Jun 5, 2025Returned to company 1 shares at $223.51 of InterDigital²⁰
• Apr 23, 2025Granted 5 shares of InterDigital²¹
• Feb 24, 2025Granted 44,643 shares of Unisys²²
• Jan 22, 2025Granted 4 shares of InterDigital²³
• Oct 23, 2024Granted 5 shares of InterDigital²⁴
• Sep 20, 2024Sold 2,500 shares at $138.72 of InterDigital²⁵
• Jul 24, 2024Granted 6 shares of InterDigital²⁶
• Jun 11, 2024Sold 769 shares at $115.28 of InterDigital²⁷