First Solar (NASDAQ: FSLR) CPO vests 2,826 shares, sells 1,361

Rhea-AI Filing Summary

First Solar, Inc. Chief Product Officer Patrick James Buehler reported two stock transactions. On February 27, 2026, he acquired 2,826 shares of common stock at no cost upon vesting of performance share units granted on March 6, 2023, after an approximately three-year performance period. On March 3, 2026, 1,361 shares were sold by the company to satisfy tax withholding obligations related to this vesting at an average price of $195.93 per share. Following these transactions, Buehler directly owned 5,863 shares of First Solar common stock.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Buehler Patrick James

(Last) (First) (Middle)

C/O FIRST SOLAR, INC.

4300 E CAMELBACK ROAD, SUITE 220

(Street)

PHOENIX AZ 85018

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
FIRST SOLAR, INC. [ FSLR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Product Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/27/2026		A		2,826(1)	A	$0	7,224	D
Common Stock	03/03/2026		S		1,361(2)	D	$195.93	5,863	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents the acquisition of shares of common stock issued upon the vesting of the performance share units granted on March 6, 2023, which performance share unit awards vested over an approximately three-year performance period contingent upon the achievement of certain performance objectives.

2. Represents shares of common stock sold by the Issuer to satisfy certain tax withholding obligations with the vesting of the performance share units.

	/s/ Jason E. Dymbort, attorney-in-fact	03/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

What insider transactions did First Solar (FSLR) Chief Product Officer Patrick James Buehler report?

Patrick James Buehler reported one share award and one related sale. He received 2,826 First Solar common shares from vesting performance share units, then 1,361 shares were sold by the company to cover tax withholding obligations tied to that vesting.

How many First Solar (FSLR) shares did Patrick James Buehler acquire and at what cost?

Buehler acquired 2,826 First Solar common shares at no cash cost. The shares were issued upon vesting of performance share units granted on March 6, 2023, after an approximately three-year performance period tied to specified performance objectives.

Why were 1,361 First Solar (FSLR) shares sold in Patrick James Buehler’s Form 4 filing?

The 1,361 shares were sold to satisfy tax withholding obligations. According to the disclosure, First Solar sold these common shares in connection with the vesting of Buehler’s performance share units, using sale proceeds to cover required tax withholdings.

What price was received for the 1,361 First Solar (FSLR) shares sold for taxes?

The 1,361 shares tied to tax withholding were sold at $195.93 per share. This open-market sale price reflects how the company satisfied certain tax obligations arising from the vesting of Buehler’s performance share unit award.

How many First Solar (FSLR) shares does Patrick James Buehler own after these transactions?

After the reported transactions, Buehler directly owns 5,863 shares. This figure reflects the net result of receiving 2,826 shares from vested performance share units and the separate sale of 1,361 shares to cover related tax withholding obligations.

What was the origin and performance period of Patrick James Buehler’s vested First Solar (FSLR) share units?

The vested shares came from performance share units granted March 6, 2023. These units vested over an approximately three-year performance period, contingent on achieving specific performance objectives before converting into 2,826 shares of common stock.