Kathryn A. Walker

Companies

• AdtranBoard member Jun 4, 2014 to now¹
• Sprint CorporationChief Network Officer Feb 8, 2006 to Mar 28, 2008²

Holdings

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

Shares held

• Adtran ADTN98,663 shares³$636.9K at $6.46Dec 31, 2025

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

Recent filings

• Dec 31, 2025Granted 13,809 shares of Adtran³
• Dec 31, 2024Granted 14,406 shares of Adtran⁴
• Dec 31, 2023Granted 16,349 shares of Adtran⁵
• Dec 31, 2023Returned to company 0 shares at $7.34 of Adtran⁵
• Dec 31, 2023Exercised options 168 shares of Adtran⁵
• Jan 24, 2023Granted 1,629 shares of Adtran⁶
• Dec 31, 2022Granted 4,790 shares of Adtran⁷
• Dec 31, 2022Returned to company 0 shares at $18.79 of Adtran⁷
• Dec 31, 2022Exercised options 69 shares of Adtran⁷
• Sep 1, 2022Granted 16 shares at $22.70 of Adtran⁸
• Jul 8, 2022Granted 47,479 shares of Adtran⁹
• Jul 8, 2022Returned to company 47,479 shares of Adtran¹⁰
• Dec 31, 2021Granted 3,943 shares of Adtran¹¹
• Dec 31, 2021Returned to company 0 shares at $22.83 of Adtran¹¹
• Dec 31, 2021Exercised options 114 shares of Adtran¹¹