William J. Post

Companies

• First SolarBoard member Jun 4, 2010 to now¹
• US Airways GroupBoard member Sep 6, 2011 to Dec 9, 2013²
• Knight-Swift TransportationBoard member Dec 17, 2010 to Feb 26, 2013³
• Pinnacle West Capital CorporationBoard member Jul 27, 2006 to Feb 23, 2010⁴
• Pinnacle West Capital CorporationChair Jan 6, 2009 to Mar 20, 2009⁵
• Pinnacle West Capital CorporationChief executive officer Jul 27, 2006 to Mar 20, 2009⁴

Holdings

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

Shares held

• First Solar FSLR27,385 shares⁶$4.9M at $178.81Jun 30, 2026

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

Recent filings

• Jun 30, 2026Granted 223 shares of First Solar⁶
• Mar 31, 2026Granted 267 shares of First Solar⁷
• Dec 31, 2025Granted 173 shares of First Solar⁸
• Sep 30, 2025Granted 205 shares of First Solar⁹
• Jun 30, 2025Granted 272 shares of First Solar¹⁰
• Mar 31, 2025Granted 356 shares of First Solar¹¹
• Dec 31, 2024Granted 256 shares of First Solar¹²
• Sep 30, 2024Granted 181 shares of First Solar¹³
• Jun 28, 2024Granted 200 shares of First Solar¹⁴
• Mar 29, 2024Granted 267 shares of First Solar¹⁵
• Dec 29, 2023Granted 262 shares of First Solar¹⁶
• Sep 30, 2023Granted 279 shares of First Solar¹⁷
• Jun 30, 2023Granted 237 shares of First Solar¹⁸
• May 16, 2023Sold 10,000 shares at $218.52 of First Solar¹⁹
• Mar 31, 2023Granted 207 shares of First Solar²⁰
• Dec 30, 2022Granted 268 shares of First Solar²¹
• Sep 30, 2022Granted 303 shares of First Solar²²
• Jun 30, 2022Granted 588 shares of First Solar²³
• Mar 31, 2022Granted 478 shares of First Solar²⁴
• Dec 31, 2021Granted 459 shares of First Solar²⁵
• Sep 30, 2021Granted 420 shares of First Solar²⁶