Michael Koralewski

Companies

• First SolarChief Mfg. Operations Officer Aug 3, 2020 to now¹

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 FSLR7,642 shares²$1.3M at $171.16Aug 3, 2026

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

Recent filings

• Aug 3, 2026Sold 3,500 shares at $225.00 of First Solar²
• Aug 3, 2026Sold 3,500 shares at $218.02 of First Solar²
• May 5, 2026Sold 215 shares at $215.63 of First Solar³
• May 4, 2026Exercised options 518 shares of First Solar³
• Mar 16, 2026Sold 264 shares at $200.80 of First Solar⁴
• Mar 13, 2026Exercised options 640 shares of First Solar⁴
• Mar 9, 2026Sold 233 shares at $190.36 of First Solar⁵
• Mar 9, 2026Sold 180 shares at $190.36 of First Solar⁵
• Mar 9, 2026Sold 78 shares at $190.36 of First Solar⁵
• Mar 9, 2026Sold 265 shares at $190.36 of First Solar⁵
• Mar 6, 2026Exercised options 572 shares of First Solar⁵
• Mar 6, 2026Exercised options 442 shares of First Solar⁵
• Mar 6, 2026Exercised options 189 shares of First Solar⁵
• Mar 6, 2026Exercised options 651 shares of First Solar⁵
• Mar 3, 2026Sold 1,330 shares at $195.93 of First Solar⁶
• Feb 27, 2026Granted 2,826 shares of First Solar⁶
• Jun 2, 2025Sold 2,951 shares at $158.21 of First Solar⁷
• Mar 17, 2025Sold 273 shares at $133.75 of First Solar⁸
• Mar 14, 2025Exercised options 640 shares of First Solar⁸
• Mar 7, 2025Sold 188 shares at $132.96 of First Solar⁹
• Mar 6, 2025Exercised options 442 shares of First Solar⁹
• Mar 6, 2025Shares withheld for tax 81 shares at $131.13 of First Solar⁹
• Mar 6, 2025Exercised options 189 shares of First Solar⁹
• Mar 6, 2025Shares withheld for tax 279 shares at $131.13 of First Solar⁹
• Mar 6, 2025Exercised options 651 shares of First Solar⁹