FIRST SOLAR, INC. Insider Trading Activity

First Solar, Inc. Chief Commercial Officer Georges Antoun reported equity compensation activity in company common stock.

Rhea-AI Filing Summary

First Solar, Inc. Chief Commercial Officer Georges Antoun reported equity compensation activity in company common stock. On March 2, 2026 he acquired 4,239 shares at $0.00 per share from the vesting of performance share units granted on March 6, 2023 after a multi‑year performance period. On March 3, 2026 the company sold 1,958 shares at $194.95 per share to satisfy tax withholding obligations tied to that vesting, leaving Antoun with 17,705 directly owned shares of First Solar common stock.

Insider Trade Summary

Net Seller: 1,958 shares

Net Sell 2 txns

Insider ANTOUN GEORGES

Role Chief Commercial Officer

Sold 1,958 shs ($382K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,958	$194.95	$382K
Grant/Award	Common Stock	4,239	$0.00	$0.00

Holdings After Transaction: Common Stock — 17,705 shares (Direct)

Footnotes (2)

1. F1. 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. F2. Represents shares of common stock sold by the Issuer to satisfy certain tax withholding obligations with the vesting of the performance share units.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did FSLR Chief Commercial Officer report?

The Chief Commercial Officer reported a grant-related share acquisition and a tax-related sale. 4,239 shares vested from performance share units, and 1,958 shares were sold by the company to cover tax withholding obligations.

How many First Solar (FSLR) shares did the insider acquire?

The insider acquired 4,239 shares of First Solar common stock. These came from performance share units granted on March 6, 2023 that vested after an approximately three-year performance period based on specified performance objectives.

Why were 1,958 First Solar shares sold in this Form 4?

1,958 shares of First Solar common stock were sold by the company to satisfy tax withholding obligations. These obligations arose when the insider’s performance share units vested and converted into shares of common stock.

What price was received for the 1,958 First Solar shares sold?

The 1,958 First Solar shares tied to tax withholding were sold at $194.95 per share. This transaction is described as satisfying tax obligations associated with the vesting of performance share unit awards.

How many First Solar (FSLR) shares does the insider hold after these transactions?

After the reported transactions, the insider directly owns 17,705 shares of First Solar common stock. This figure reflects the vesting-related acquisition and the tax withholding sale executed by the company.

What triggered the vesting of the First Solar performance share units?

The vesting was triggered by performance share units granted on March 6, 2023. These awards vested over an approximately three-year performance period contingent on achieving specified performance objectives before converting into common stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/03/2026 - 08:01 PM EST Learn about SEC filing dates

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

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

ANTOUN GEORGES

(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 Commercial Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/02/2026

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	03/02/2026		A		4,239(1)	A	$0	19,663	D
Common Stock	03/03/2026		S		1,958(2)	D	$194.95	17,705	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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.