Patrick James Buehler - 13 Mar 2026 Form 4 Insider Report for FIRST SOLAR, INC. (FSLR)

Role: Chief Product Officer
Signature: /s/ Jason E. Dymbort, attorney-in-fact
Issuer symbol: FSLR
Transactions as of: 13 Mar 2026
Net transactions value: -$36,144
Form type: 4
Filing time: 17 Mar 2026, 19:26:01 UTC
Previous filing: 10 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Buehler Patrick James	Chief Product Officer	C/O FIRST SOLAR, INC., 4300 E CAMELBACK ROAD, SUITE 220, PHOENIX	/s/ Jason E. Dymbort, attorney-in-fact	17 Mar 2026	0001819686

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FSLR	Common Stock	Options Exercise		+427	+6.2%	$0.000000^*	7,268	13 Mar 2026	Direct	F1
transaction	FSLR	Common Stock	Sale	$36,144	-180	-2.5%	$200.80	7,088	16 Mar 2026	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	FSLR	Restricted Stock Units	Options Exercise		-427	-50%	$0.000000^*	427	13 Mar 2026	Common Stock	427		Direct	F3, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
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.