Mark R. Widmar, CEO of First Solar Inc. ($FSLR), sold shares on the open market 35 times over the past year for a total of $8.4 million. His most recent sale occurred on March 9, 2026. These FSLR insider sales rank 1285th among 11,678 individual insiders by value, below the $8.6 million average but well above the typical 6.4 transactions. Widmar made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 16, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 1937 | $200.80 | 102,798.0000 | 107,538,000 | 1.85% | 0.00% |
| March 13, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 4856 | $0.00 | 104,735.0000 | 107,538,000 | 4.86% | 0.00% |
| March 13, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 4856 | $0.00 | 4,856.0000 | 107,538,000 | 50.00% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | A | Restricted Stock Units | 12685 | $0.00 | 12,685.0000 | 107,538,000 | 9999.99% | 0.01% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 3156 | $0.00 | 6,313.0000 | 107,538,000 | 33.33% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 1178 | $0.00 | 2,354.0000 | 107,538,000 | 33.35% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 5101 | $0.00 | 0.0000 | 107,538,000 | 100.00% | 0.00% |
| March 9, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 1703 | $190.36 | 99,879.0000 | 107,538,000 | 1.68% | 0.00% |
| March 9, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 1282 | $190.36 | 101,582.0000 | 107,538,000 | 1.25% | 0.00% |
| March 9, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 480 | $190.36 | 102,864.0000 | 107,538,000 | 0.46% | 0.00% |
| March 9, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 2072 | $190.36 | 103,344.0000 | 107,538,000 | 1.97% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 4194 | $0.00 | 105,416.0000 | 107,538,000 | 4.14% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 3156 | $0.00 | 101,222.0000 | 107,538,000 | 3.22% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 1178 | $0.00 | 98,066.0000 | 107,538,000 | 1.22% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 5101 | $0.00 | 96,888.0000 | 107,538,000 | 5.56% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 4194 | $0.00 | 12,584.0000 | 107,538,000 | 25.00% | 0.00% |
| Feb. 27, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | A | Common Stock | 17664 | $0.00 | 99,525.0000 | 107,538,000 | 21.58% | 0.02% |
| March 3, 2026 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 7738 | $195.93 | 91,787.0000 | 107,538,000 | 7.77% | 0.01% |
| Feb. 26, 2026 | ALBEMARLE CORP | $ALB | Widmar Mark R | Director | A | Phantom Stock | 325 | $0.00 | 325.0000 | 117,847,220 | 9999.99% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 34 | $205.92 | 81,861.0000 | 107,525,000 | 0.04% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 47 | $185.15 | 84,135.0000 | 107,525,000 | 0.06% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 9 | $186.47 | 84,126.0000 | 107,525,000 | 0.01% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 152 | $189.98 | 83,974.0000 | 107,525,000 | 0.18% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 192 | $191.30 | 83,782.0000 | 107,525,000 | 0.23% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 30 | $192.35 | 83,752.0000 | 107,525,000 | 0.04% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 33 | $192.80 | 83,719.0000 | 107,525,000 | 0.04% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 24 | $194.25 | 83,695.0000 | 107,525,000 | 0.03% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 179 | $195.19 | 83,516.0000 | 107,525,000 | 0.21% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 36 | $196.64 | 83,480.0000 | 107,525,000 | 0.04% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 83 | $197.84 | 83,397.0000 | 107,525,000 | 0.10% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 58 | $198.68 | 83,339.0000 | 107,525,000 | 0.07% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 160 | $199.84 | 83,179.0000 | 107,525,000 | 0.19% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 28 | $200.92 | 83,151.0000 | 107,525,000 | 0.03% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 152 | $202.13 | 82,999.0000 | 107,525,000 | 0.18% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 509 | $203.08 | 82,490.0000 | 107,525,000 | 0.61% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 512 | $203.97 | 81,978.0000 | 107,525,000 | 0.62% | 0.00% |
| Aug. 15, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 83 | $205.05 | 81,895.0000 | 107,525,000 | 0.10% | 0.00% |
| Aug. 13, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 1367 | $185.45 | 86,611.0000 | 107,525,000 | 1.55% | 0.00% |
| Aug. 13, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 581 | $186.58 | 86,030.0000 | 107,525,000 | 0.67% | 0.00% |
| Aug. 13, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 786 | $187.38 | 85,244.0000 | 107,525,000 | 0.91% | 0.00% |
| Aug. 13, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 274 | $188.82 | 84,970.0000 | 107,525,000 | 0.32% | 0.00% |
| Aug. 13, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 788 | $189.91 | 84,182.0000 | 107,525,000 | 0.93% | 0.00% |
| Aug. 12, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 14322 | $185.04 | 96,468.0000 | 107,525,000 | 12.93% | 0.01% |
| Aug. 12, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 5456 | $186.17 | 91,012.0000 | 107,525,000 | 5.66% | 0.01% |
| Aug. 12, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 2834 | $186.97 | 88,178.0000 | 107,525,000 | 3.11% | 0.00% |
| Aug. 12, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 200 | $187.74 | 87,978.0000 | 107,525,000 | 0.23% | 0.00% |
| Aug. 12, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 200 | $181.78 | 111,690.0000 | 107,525,000 | 0.18% | 0.00% |
| Aug. 12, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 900 | $183.79 | 110,790.0000 | 107,525,000 | 0.81% | 0.00% |
| May 1, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | A | Restricted Stock Units | 15209 | $0.00 | 15,209.0000 | 107,525,000 | 9999.99% | 0.01% |
| March 14, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 4856 | $0.00 | 113,856.0000 | 107,525,000 | 4.46% | 0.00% |
| March 17, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 1966 | $133.75 | 111,890.0000 | 107,525,000 | 1.73% | 0.00% |
| March 14, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 4856 | $0.00 | 9,712.0000 | 107,525,000 | 33.33% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | F | Common Stock | 2085 | $131.13 | 106,420.0000 | 107,525,000 | 1.92% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 1178 | $0.00 | 107,598.0000 | 107,525,000 | 1.11% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | F | Common Stock | 482 | $131.13 | 107,116.0000 | 107,525,000 | 0.45% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 3156 | $0.00 | 110,272.0000 | 107,525,000 | 2.95% | 0.00% |
| March 7, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 1272 | $132.96 | 109,000.0000 | 107,525,000 | 1.15% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 5102 | $0.00 | 5,101.0000 | 107,525,000 | 50.00% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 1178 | $0.00 | 3,532.0000 | 107,525,000 | 25.01% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 3156 | $0.00 | 9,469.0000 | 107,525,000 | 25.00% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | A | Restricted Stock Units | 16778 | $0.00 | 16,778.0000 | 107,525,000 | 9999.99% | 0.02% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 5102 | $0.00 | 108,505.0000 | 107,525,000 | 4.93% | 0.00% |
| Feb. 28, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 21542 | $141.09 | 103,403.0000 | 107,525,000 | 17.24% | 0.02% |
| Feb. 26, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | F | Common Stock | 29754 | $156.84 | 124,945.0000 | 107,525,000 | 19.23% | 0.03% |
| Feb. 26, 2025 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | A | Common Stock | 72838 | $0.00 | 154,699.0000 | 107,525,000 | 88.98% | 0.07% |
| June 3, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 36692 | $273.26 | 81,861.0000 | 107,372,000 | 30.95% | 0.03% |
| March 15, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 4856 | $0.00 | 14,568.0000 | 107,372,000 | 25.00% | 0.00% |
| March 15, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | F | Common Stock | 1984 | $147.42 | 118,553.0000 | 107,372,000 | 1.65% | 0.00% |
| March 15, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 4856 | $0.00 | 120,537.0000 | 107,372,000 | 4.20% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | F | Common Stock | 6123 | $158.42 | 111,968.0000 | 107,372,000 | 5.18% | 0.01% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 14987 | $0.00 | 118,091.0000 | 107,372,000 | 14.54% | 0.01% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 1178 | $0.00 | 4,710.0000 | 107,372,000 | 20.01% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 5102 | $0.00 | 10,203.0000 | 107,372,000 | 33.34% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Restricted Stock Units | 14987 | $0.00 | 0.0000 | 107,372,000 | 100.00% | 0.01% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | F | Common Stock | 482 | $158.42 | 115,681.0000 | 107,372,000 | 0.41% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 1178 | $0.00 | 116,163.0000 | 107,372,000 | 1.02% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | F | Common Stock | 2085 | $158.42 | 114,985.0000 | 107,372,000 | 1.78% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | M | Common Stock | 5102 | $0.00 | 117,070.0000 | 107,372,000 | 4.56% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | A | Restricted Stock Units | 12625 | $0.00 | 12,625.0000 | 107,372,000 | 9999.99% | 0.01% |
| March 1, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | S | Common Stock | 21244 | $152.74 | 103,104.0000 | 107,372,000 | 17.08% | 0.02% |
| Feb. 29, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | A | Common Stock | 71829 | $0.00 | 153,690.0000 | 107,372,000 | 87.75% | 0.07% |
| Feb. 29, 2024 | FIRST SOLAR, INC. | $FSLR | Widmar Mark R | Chief Executive Officer | F | Common Stock | 29342 | $153.89 | 124,348.0000 | 107,372,000 | 19.09% | 0.03% |