Mark R. Widmar

Companies

• Albemarle CorporationBoard member Mar 2, 2026 to now¹
• First SolarBoard member Aug 8, 2016 to now²
• First SolarChief executive officer Jul 6, 2016 to now³
• First SolarChief financial officer Apr 5, 2011 to Apr 6, 2016⁴
• GrafTechChief financial officer May 10, 2006 to Apr 1, 2011⁵

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 FSLR81,861 shares⁶$14.6M at $178.81May 26, 2026

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

Recent filings

• May 26, 2026Sold 126 shares at $276.29 of First Solar⁶
• May 26, 2026Sold 473 shares at $273.17 of First Solar⁶
• May 26, 2026Sold 726 shares at $271.23 of First Solar⁶
• May 26, 2026Sold 632 shares at $270.05 of First Solar⁶
• May 26, 2026Sold 1,009 shares at $268.89 of First Solar⁶
• May 26, 2026Sold 628 shares at $267.72 of First Solar⁶
• May 26, 2026Sold 1,237 shares at $266.60 of First Solar⁶
• May 26, 2026Sold 364 shares at $265.15 of First Solar⁶
• May 22, 2026Sold 47 shares at $258.48 of First Solar⁶
• May 22, 2026Sold 149 shares at $257.55 of First Solar⁶
• May 22, 2026Sold 75 shares at $256.32 of First Solar⁶
• May 22, 2026Sold 64 shares at $255.59 of First Solar⁶
• May 22, 2026Sold 916 shares at $254.93 of First Solar⁶
• May 22, 2026Sold 218 shares at $253.63 of First Solar⁶
• May 22, 2026Sold 97 shares at $252.87 of First Solar⁶
• May 22, 2026Sold 172 shares at $251.53 of First Solar⁶
• May 22, 2026Sold 239 shares at $250.02 of First Solar⁶
• May 21, 2026Sold 521 shares at $243.19 of First Solar⁷
• May 21, 2026Sold 6 shares at $256.96 of First Solar⁷
• May 21, 2026Sold 179 shares at $255.31 of First Solar⁷
• May 21, 2026Sold 261 shares at $254.29 of First Solar⁷
• May 21, 2026Sold 569 shares at $251.64 of First Solar⁷
• May 21, 2026Sold 472 shares at $250.61 of First Solar⁷
• May 21, 2026Sold 1,131 shares at $249.70 of First Solar⁷
• May 21, 2026Sold 179 shares at $248.80 of First Solar⁷