Koralewski Michael 4
4 · FIRST SOLAR, INC. · Filed Mar 10, 2026
Research Summary
AI-generated summary of this filing
First Solar (FSLR) Chief Supply Chain Officer Michael Koralewski Sells Shares
What Happened
Michael Koralewski, Chief Supply Chain Officer at First Solar (FSLR), had restricted stock units (RSUs) vest and converted to common shares on March 6, 2026. A total of 1,854 shares were issued upon conversion/vesting (recorded as conversions of derivative securities). Following the vesting, 756 shares were sold (sell‑to‑cover for tax withholding) in open‑market transactions on March 9, 2026 at $190.36 per share, generating aggregate proceeds of $143,912. The filing also reports a new RSU grant of 1,903 shares on March 6, 2026 (subject to future vesting).
Key Details
- Transaction dates and prices:
- 2026-03-06: Conversion/vesting of 1,854 RSU‑equivalent shares (reported at $0.00 acquisition cost).
- 2026-03-09: Open‑market sales of 265, 78, 180 and 233 shares at $190.36 each (total 756 shares) for $143,912.
- 2026-03-06: Grant of 1,903 RSUs (new award) recorded.
- Net effect: 1,854 shares vested; 756 of those were sold to satisfy tax withholding (sell‑to‑cover), leaving a net 1,098 vested shares retained by the insider (based on transactions reported).
- Footnotes / vesting rules:
- The vested shares reflect scheduled vesting of prior RSU grants (various annual vesting schedules: 20% or 25% per year depending on the grant date).
- The 1,903‑share grant (3/6/2026) vests 25% annually beginning on the first anniversary (per footnote).
- Footnote indicates the share sales were to satisfy tax withholding on RSU vesting (sell‑to‑cover).
- Shares owned after transaction: Not specified in the provided filing excerpt.
- Timeliness: Filing date 2026-03-10 covers transactions on 3/6 and 3/9 — the Form 4 was filed promptly (not marked late).
Context
These transactions are largely routine RSU vesting and sell‑to‑cover activity. The $0.00 acquisition price for the converted shares indicates conversion of RSUs (not a cash exercise of priced options). The subsequent sale of a portion of vested shares to cover taxes is common and does not necessarily indicate a view on company prospects. The filing also shows a new RSU award that will vest over future years per First Solar’s executive grant schedule.
Insider Transaction Report
- Exercise/Conversion
Common Stock
[F1]2026-03-06+651→ 13,516 total - Exercise/Conversion
Common Stock
[F2]2026-03-06+189→ 13,705 total - Exercise/Conversion
Common Stock
[F3]2026-03-06+442→ 14,147 total - Exercise/Conversion
Common Stock
[F4]2026-03-06+572→ 14,719 total - Sale
Common Stock
[F5]2026-03-09$190.36/sh−265$50,445→ 14,454 total - Sale
Common Stock
[F5]2026-03-09$190.36/sh−78$14,848→ 14,376 total - Sale
Common Stock
[F5]2026-03-09$190.36/sh−180$34,265→ 14,196 total - Sale
Common Stock
[F5]2026-03-09$190.36/sh−233$44,354→ 13,963 total - Exercise/Conversion
Restricted Stock Units
[F6][F7]2026-03-06−651→ 0 total→ Common Stock (651 underlying) - Exercise/Conversion
Restricted Stock Units
[F6][F8]2026-03-06−189→ 376 total→ Common Stock (189 underlying) - Exercise/Conversion
Restricted Stock Units
[F6][F9]2026-03-06−442→ 884 total→ Common Stock (442 underlying) - Exercise/Conversion
Restricted Stock Units
[F6][F10]2026-03-06−572→ 1,716 total→ Common Stock (572 underlying) - Award
Restricted Stock Units
[F6][F11]2026-03-06+1,903→ 1,903 total→ Common Stock (1,903 underlying)
Footnotes (11)
- [F1]Represents shares of common stock issued upon vesting of 20% of the restricted stock units granted on March 6, 2021.
- [F10]The restricted stock units were granted on March 6, 2025 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2025 vest annually at a rate of 25% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
- [F11]The restricted stock units were granted on March 6, 2026 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2026 vest annually at a rate of 25% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
- [F2]Represents shares of common stock issued upon vesting of 20% of the restricted stock units granted on March 6, 2023.
- [F3]Represents shares of common stock issued upon vesting of 25% of the restricted stock units granted on March 6, 2024.
- [F4]Represents shares of common stock issued upon vesting of 25% of the restricted stock units granted on March 6, 2025.
- [F5]Represents shares of common stock sold by the Issuer to satisfy certain tax withholding obligations with the vesting of the restricted stock units.
- [F6]Each restricted stock unit represents the right to receive, upon vesting, one share of the Issuer's common stock in accordance with the Issuer's 2020 Omnibus Incentive Compensation Plan.
- [F7]The restricted stock units were granted on March 6, 2021 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2021 vest annually at a rate of 20% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
- [F8]The restricted stock units were granted on March 6, 2023 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2023 vest annually at a rate of 20% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
- [F9]The restricted stock units were granted on March 6, 2024 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2024 vest annually at a rate of 25% on each anniversary of the grant date, commencing on the first anniversary of the grant date.