Michael Koralewski, Chief Supply Chain Officer at First Solar, Inc. ($FSLR), made seven open market sales of company shares over the last year, totaling $907,890. His most recent sale occurred on March 9, 2026. These transactions rank him 5,155th out of 11,678 insiders by sales value, well below the average of $8.6 million per insider and slightly above the typical 6.4 sales. Koralewski recorded no open market purchases in 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 | Koralewski Michael | Chief Supply Chain Officer | S | Common Stock | 264 | $200.80 | 14,339.0000 | 107,538,000 | 1.81% | 0.00% |
| March 13, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 640 | $0.00 | 640.0000 | 107,538,000 | 50.00% | 0.00% |
| March 13, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 640 | $0.00 | 14,603.0000 | 107,538,000 | 4.58% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 189 | $0.00 | 13,705.0000 | 107,538,000 | 1.40% | 0.00% |
| March 9, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | S | Common Stock | 265 | $190.36 | 14,454.0000 | 107,538,000 | 1.80% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 572 | $0.00 | 14,719.0000 | 107,538,000 | 4.04% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 442 | $0.00 | 14,147.0000 | 107,538,000 | 3.23% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 651 | $0.00 | 13,516.0000 | 107,538,000 | 5.06% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | A | Restricted Stock Units | 1903 | $0.00 | 1,903.0000 | 107,538,000 | 9999.99% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 572 | $0.00 | 1,716.0000 | 107,538,000 | 25.00% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 442 | $0.00 | 884.0000 | 107,538,000 | 33.33% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 189 | $0.00 | 376.0000 | 107,538,000 | 33.45% | 0.00% |
| March 6, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 651 | $0.00 | 0.0000 | 107,538,000 | 100.00% | 0.00% |
| March 9, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | S | Common Stock | 233 | $190.36 | 13,963.0000 | 107,538,000 | 1.64% | 0.00% |
| March 9, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | S | Common Stock | 180 | $190.36 | 14,196.0000 | 107,538,000 | 1.25% | 0.00% |
| March 9, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | S | Common Stock | 78 | $190.36 | 14,376.0000 | 107,538,000 | 0.54% | 0.00% |
| Feb. 27, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | A | Common Stock | 2826 | $0.00 | 14,195.0000 | 107,538,000 | 24.86% | 0.00% |
| March 3, 2026 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | S | Common Stock | 1330 | $195.93 | 12,865.0000 | 107,538,000 | 9.37% | 0.00% |
| June 2, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | S | Common Stock | 2951 | $158.21 | 11,369.0000 | 107,525,000 | 20.61% | 0.00% |
| May 1, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | A | Restricted Stock Units | 2074 | $0.00 | 2,074.0000 | 107,525,000 | 9999.99% | 0.00% |
| March 17, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | S | Common Stock | 273 | $133.75 | 14,320.0000 | 107,525,000 | 1.87% | 0.00% |
| March 14, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 640 | $0.00 | 14,593.0000 | 107,525,000 | 4.59% | 0.00% |
| March 14, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 640 | $0.00 | 1,280.0000 | 107,525,000 | 33.33% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 651 | $0.00 | 13,870.0000 | 107,525,000 | 4.92% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | F | Common Stock | 279 | $131.13 | 13,591.0000 | 107,525,000 | 2.01% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 189 | $0.00 | 565.0000 | 107,525,000 | 25.07% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 442 | $0.00 | 1,326.0000 | 107,525,000 | 25.00% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | A | Restricted Stock Units | 2288 | $0.00 | 2,288.0000 | 107,525,000 | 9999.99% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 189 | $0.00 | 13,780.0000 | 107,525,000 | 1.39% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | F | Common Stock | 81 | $131.13 | 13,699.0000 | 107,525,000 | 0.59% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 442 | $0.00 | 14,141.0000 | 107,525,000 | 3.23% | 0.00% |
| March 7, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | S | Common Stock | 188 | $132.96 | 13,953.0000 | 107,525,000 | 1.33% | 0.00% |
| March 6, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 651 | $0.00 | 651.0000 | 107,525,000 | 50.00% | 0.00% |
| Feb. 26, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | A | Common Stock | 9604 | $0.00 | 17,370.0000 | 107,525,000 | 123.67% | 0.01% |
| Feb. 26, 2025 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | F | Common Stock | 4151 | $156.84 | 13,219.0000 | 107,525,000 | 23.90% | 0.00% |
| May 30, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | S | Common Stock | 4646 | $272.92 | 7,766.0000 | 107,372,000 | 37.43% | 0.00% |
| March 15, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 641 | $0.00 | 12,687.0000 | 107,372,000 | 5.32% | 0.00% |
| March 15, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | F | Common Stock | 275 | $147.42 | 12,412.0000 | 107,372,000 | 2.17% | 0.00% |
| March 15, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 641 | $0.00 | 1,920.0000 | 107,372,000 | 25.03% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 1729 | $0.00 | 12,307.0000 | 107,372,000 | 16.35% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 651 | $0.00 | 12,217.0000 | 107,372,000 | 5.63% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | F | Common Stock | 741 | $158.42 | 11,566.0000 | 107,372,000 | 6.02% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | A | Restricted Stock Units | 1768 | $0.00 | 1,768.0000 | 107,372,000 | 9999.99% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 189 | $0.00 | 754.0000 | 107,372,000 | 20.04% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 651 | $0.00 | 1,302.0000 | 107,372,000 | 33.33% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Restricted Stock Units | 1729 | $0.00 | 0.0000 | 107,372,000 | 100.00% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | F | Common Stock | 81 | $158.42 | 12,046.0000 | 107,372,000 | 0.67% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | M | Common Stock | 189 | $0.00 | 12,127.0000 | 107,372,000 | 1.58% | 0.00% |
| March 6, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | F | Common Stock | 279 | $158.42 | 11,938.0000 | 107,372,000 | 2.28% | 0.00% |
| Feb. 29, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | A | Common Stock | 9169 | $0.00 | 14,541.0000 | 107,372,000 | 170.68% | 0.01% |
| Feb. 29, 2024 | FIRST SOLAR, INC. | $FSLR | Koralewski Michael | Chief Supply Chain Officer | F | Common Stock | 3963 | $153.89 | 10,578.0000 | 107,372,000 | 27.25% | 0.00% |