Donald E. Walther

Companies

• ComtechGeneral counsel Apr 13, 2023 to now¹
• TopBuild Corp.Gen. Counsel, Corporate Sec. May 8, 2019 to Feb 19, 2020²

Holdings

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

Shares held

• CComtech CMTL77,015 shares³$99.7K at $1.29Sep 30, 2026

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

Recent filings

• Sep 30, 2026Shares withheld for tax 5,446 shares at $1.37 of Comtech³
• Sep 30, 2026Exercised options 15,946 shares of Comtech³
• Aug 11, 2026Shares withheld for tax 2,010 shares at $1.73 of Comtech⁴
• Aug 11, 2026Exercised options 5,883 shares of Comtech⁴
• Apr 28, 2026Shares withheld for tax 9,899 shares at $3.52 of Comtech⁵
• Apr 28, 2026Exercised options 28,986 shares of Comtech⁵
• Apr 28, 2026Shares withheld for tax 576 shares at $3.52 of Comtech⁵
• Apr 28, 2026Exercised options 1,685 shares of Comtech⁵
• Nov 7, 2025Shares withheld for tax 868 shares at $3.04 of Comtech⁶
• Nov 7, 2025Granted 2,605 shares of Comtech⁶
• Sep 30, 2025Shares withheld for tax 5,311 shares at $2.58 of Comtech⁷
• Sep 30, 2025Exercised options 15,946 shares of Comtech⁷
• Aug 11, 2025Shares withheld for tax 1,959 shares at $1.99 of Comtech⁸
• Aug 11, 2025Exercised options 5,882 shares of Comtech⁸
• Apr 28, 2025Shares withheld for tax 562 shares at $1.39 of Comtech⁹
• Apr 28, 2025Exercised options 1,685 shares of Comtech⁹
• Aug 11, 2024Shares withheld for tax 1,960 shares at $3.17 of Comtech¹⁰
• Aug 11, 2024Exercised options 5,883 shares of Comtech¹⁰
• Jul 31, 2024Shares withheld for tax 6,167 shares at $3.24 of Comtech¹¹
• Jul 31, 2024Granted 18,519 shares at $3.24 of Comtech¹¹
• Jul 27, 2024Shares withheld for tax 5,928 shares at $3.40 of Comtech¹²
• Jul 27, 2024Exercised options 12,900 shares of Comtech¹²
• Apr 28, 2024Shares withheld for tax 904 shares at $2.05 of Comtech¹³
• Apr 28, 2024Exercised options 1,685 shares of Comtech¹³
• Jul 27, 2023Shares withheld for tax 587 shares at $10.01 of Comtech¹⁴