Mark R. Widmar
Chief Executive Officer at First Solar Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: First Solar Inc., 3 years.
First Solar Inc.
Director · Chief Executive Officer
Chief executive roles
First Solar Inc.
· Chief Executive Officer
Dates unknown
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Jun 3, 2024 | First Solar Inc. | Open-market sale | −36,692 | $273.26 | $10,026,456 |
| Mar 15, 2024 | First Solar Inc. | Option exercise | +4,856 | — | — |
| Mar 15, 2024 | First Solar Inc. | Shares withheld for tax | −1,984 | $147.42 | $292,481 |
| Mar 6, 2024 | First Solar Inc. | Option exercise | +14,987 | — | — |
| Mar 6, 2024 | First Solar Inc. | Shares withheld for tax | −6,123 | $158.42 | $970,006 |
| Mar 6, 2024 | First Solar Inc. | Option exercise | +5,102 | — | — |
| Mar 6, 2024 | First Solar Inc. | Shares withheld for tax | −2,085 | $158.42 | $330,306 |
| Mar 6, 2024 | First Solar Inc. | Option exercise | +1,178 | — | — |
| Mar 6, 2024 | First Solar Inc. | Shares withheld for tax | −482 | $158.42 | $76,358 |
| Mar 1, 2024 | First Solar Inc. | Open-market sale | −21,244 | $152.74 | $3,244,809 |
| Feb 29, 2024 | First Solar Inc. | Grant or award | +71,829 | — | — |
| Feb 29, 2024 | First Solar Inc. | Shares withheld for tax | −29,342 | $153.89 | $4,515,440 |
| Jul 28, 2023 | First Solar Inc. | Open-market sale | −2,160 | $223.41 | $482,566 |
| Jul 18, 2023 | First Solar Inc. | Open-market sale | −2,160 | $210.00 | $453,600 |
| Jul 17, 2023 | First Solar Inc. | Open-market sale | −3,982 | $205.00 | $816,310 |
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