Buehler Patrick James 4

4 · FIRST SOLAR, INC. · Filed Mar 17, 2026

AI-generated summary of this filing

Updated Mar 17, 2026

First Solar (FSLR) CPO Patrick Buehler Receives Award, Sells 180 Shares

What Happened

Patrick James Buehler, Chief Product Officer of First Solar (FSLR), had 427 restricted stock units (RSUs) convert to common shares on 2026-03-13 (recorded as an exercise/conversion of a derivative, code M). The issuer withheld shares to satisfy tax-withholding obligations. Separately, on 2026-03-16 he sold 180 shares in an open-market transaction at $200.80 per share, generating proceeds of $36,144.

Key Details

Transactions reported:
- 2026-03-13: 427 shares acquired via conversion of RSUs (M) at $0.00 (these represent vested RSUs; 1 RSU = 1 share) [Footnote F1, F3].
- 2026-03-13: 427 shares disposed at $0.00 (shares surrendered/withheld by issuer to satisfy tax withholding) [Footnote F2].
- 2026-03-16: 180 shares sold in open market (S) at $200.80; proceeds $36,144.
RSU background: Grants were made on March 15, 2022 and vest at 20% per year on each anniversary (F4). Each RSU converts to one share on vesting (F3).
Filing: Form 4 filed 2026-03-17 reporting transactions through 2026-03-16; no late filing is indicated in the data provided.
Shares owned after the transactions: not specified in the excerpt provided.

Context

The conversion (code M) reflects RSUs vesting rather than an option exercise requiring cash; the $0.00 price is normal for RSU vesting. The disposal of 427 shares at $0.00 indicates shares were surrendered/withheld to cover tax obligations (not a market sale by the insider). The separate sale of 180 shares was an open-market sale and produced modest proceeds; sales to cover taxes or withholding are routine and do not necessarily indicate a change in insider sentiment. Purchases (not present here) are generally more indicative of bullish signals.

Form 4

Period: 2026-03-13

Chief Product Officer

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-03-13+427→ 7,268 total
Sale
Common Stock
[F2]
2026-03-16$200.80/sh−180$36,144→ 7,088 total
Exercise/Conversion
Restricted Stock Units
[F3][F4]
2026-03-13−427→ 427 total
→ Common Stock (427 underlying)

Footnotes (4)

[F1]Represents shares of common stock issued upon vesting of 20% of the restricted stock units granted on March 15, 2022.
[F2]Represents shares of common stock sold by the Issuer to satisfy certain tax withholding obligations with the vesting of the restricted stock units.
[F3]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.
[F4]The restricted stock units were granted on March 15, 2022 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 15, 2022 are scheduled to vest annually at a rate of 20% on each anniversary of the grant date, commencing on the first anniversary of the grant date.

Signature

/s/ Jason E. Dymbort, attorney-in-fact|2026-03-17

1 file