First Solar's three largest insider shareholders as of September 29, 2026 are Mark R Widmar (Chief Executive Officer, 81.86K shares), Michael J Ahearn (Chairman And Interim Ceo, 66.06K shares), Alexander R. Bradley (Chief Financial Officer, 30.71K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Mark R Widmar | Chief Executive Officer | 81,861 | 0 | 81,861 | 19.8% | 27 May, 2026 |
| 2 | Michael J Ahearn | Chairman And Interim Ceo | 66,057 | 0 | 66,057 | 16.0% | 05 Aug, 2026 |
| 3 | Alexander R. Bradley | Chief Financial Officer | 30,712 | 0 | 30,712 | 7.4% | 05 May, 2026 |
| 4 | William J Post | Director | 0 | 27,385 | 27,385 | 6.6% | 01 Jul, 2026 |
| 5 | George A Hambro | Director | 0 | 25,599 | 25,599 | 6.2% | 01 Jul, 2024 |
| 6 | Sharon L. Allen | Director | 24,813 | 0 | 24,813 | 6.0% | 01 Jul, 2022 |
| 7 | Caroline Stockdale | Chief People And Comm. Officer | 23,792 | 0 | 23,792 | 5.8% | 01 Jun, 2026 |
| 8 | Georges Antoun | Chief Commercial Officer | 19,918 | 0 | 19,918 | 4.8% | 05 May, 2026 |
| 9 | Molly Joseph | Director | 16,195 | 0 | 16,195 | 3.9% | 01 Jul, 2025 |
| 10 | Paul H Stebbins | Director | 0 | 15,950 | 15,950 | 3.9% | 01 Jul, 2026 |
| 11 | Michael T Sweeney | Director | 14,325 | 0 | 14,325 | 3.5% | 01 Jul, 2026 |
| 12 | R Craig Kennedy | Director | 14,108 | 0 | 14,108 | 3.4% | 01 Jul, 2024 |
| 13 | Michael Koralewski | Chief Supply Chain Officer | 7,642 | 0 | 7,642 | 1.9% | 05 Aug, 2026 |
| 14 | Markus Gloeckler | Chief Technology Officer | 5,842 | 0 | 5,842 | 1.4% | 02 Sep, 2026 |
| 15 | Jason E. Dymbort | General Counsel And Secretary | 5,624 | 0 | 5,624 | 1.4% | 12 Aug, 2026 |
| 16 | Anita M. George | Director | 5,171 | 0 | 5,171 | 1.3% | 01 Jul, 2026 |
| 17 | Norman L. Wright | Director | 5,009 | 0 | 5,009 | 1.2% | 01 Jul, 2026 |
| 18 | Kuntal Kumar Verma | Chief Manufacturing Officer | 4,967 | 0 | 4,967 | 1.2% | 22 May, 2026 |
| 19 | Lisa A Kro | Director | 0 | 4,599 | 4,599 | 1.1% | 01 Jul, 2026 |
| 20 | Patrick James Buehler | Chief Product Officer | 4,406 | 0 | 4,406 | 1.1% | 03 Jun, 2026 |
| 21 | Kathryn A Hollister | Director | 2,846 | 0 | 2,846 | 0.7% | 01 Jul, 2022 |
| 22 | Samantha L. Sloan | Evp, Corporate Affairs | 2,353 | 0 | 2,353 | 0.6% | 03 Sep, 2026 |
| 23 | Venkata S M Renduchintala | Director | 2,133 | 0 | 2,133 | 0.5% | 01 Jul, 2026 |
| 24 | Richard D Chapman | Director | 1,245 | 0 | 1,245 | 0.3% | 01 Jul, 2024 |
| 25 | Curtis A Morgan | Director | 223 | 0 | 223 | 0.1% | 01 Jul, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 01 Sep, 2026 | Samantha L. Sloan | Evp, Corporate Affairs | Acquired M | 469 | $0.00 | $0 | 2,487 | Direct |
| 01 Sep, 2026 | Samantha L. Sloan | Evp, Corporate Affairs | Disposed F | 134 | $199.65 | $26.75K | 2,353 | Direct |
| 01 Sep, 2026 | Samantha L. Sloan | Evp, Corporate Affairs | Disposed M | 469 | $0.00 | $0 | 469 | Direct |
| 01 Sep, 2026 | Markus Gloeckler | Chief Technology Officer | Disposed S | 800 | $200.00 | $160.00K | 5,842 | Direct |
| 14 Aug, 2026 | Samantha L. Sloan | Evp, Corporate Affairs | Acquired M | 437 | $0.00 | $0 | 2,145 | Direct |
| 17 Aug, 2026 | Samantha L. Sloan | Evp, Corporate Affairs | Disposed S | 127 | $222.95 | $28.31K | 2,018 | Direct |
| 14 Aug, 2026 | Samantha L. Sloan | Evp, Corporate Affairs | Disposed M | 437 | $0.00 | $0 | 1,314 | Direct |
| 11 Aug, 2026 | Jason E. Dymbort | General Counsel And Secretary | Disposed S | 3,700 | $249.38 | $922.71K | 5,624 | Direct |
| 03 Aug, 2026 | Michael Koralewski | Chief Supply Chain Officer | Disposed S | 3,500 | $218.02 | $763.07K | 11,142 | Direct |
| 03 Aug, 2026 | Markus Gloeckler | Chief Technology Officer | Disposed S | 800 | $222.00 | $177.60K | 10,096 | Direct |
| 04 Aug, 2026 | Michael J Ahearn | Director | Disposed G | 44,584 | — | — | 66,057 | Direct |
| 03 Aug, 2026 | Markus Gloeckler | Chief Technology Officer | Disposed S | 2,625 | $218.02 | $572.30K | 7,471 | Direct |
| 03 Aug, 2026 | Michael Koralewski | Chief Supply Chain Officer | Disposed S | 3,500 | $225.00 | $787.50K | 7,642 | Direct |
| 04 Aug, 2026 | Markus Gloeckler | Chief Technology Officer | Disposed S | 829 | $248.00 | $205.59K | 6,642 | Direct |
| 30 Jun, 2026 | Anita M. George | Director | Acquired A | 223 | $0.00 | $0 | 5,238 | Direct |
| 30 Jun, 2026 | Curtis A Morgan | Director | Acquired A | 223 | $0.00 | $0 | 223 | Direct |
| 30 Jun, 2026 | William J Post | Director | Acquired A | 223 | $0.00 | $0 | 27,385 | Indirect |
| 30 Jun, 2026 | Paul H Stebbins | Director | Acquired A | 223 | $0.00 | $0 | 15,950 | Indirect |
| 30 Jun, 2026 | Michael T Sweeney | Director | Acquired A | 223 | $0.00 | $0 | 14,325 | Direct |
| 30 Jun, 2026 | Michael J Ahearn | Director | Acquired A | 313 | $0.00 | $0 | 66,057 | Direct |