First Solar (NASDAQ: FSLR) officer nets RSU shares, covers tax sale

Rhea-AI Filing Summary

FIRST SOLAR, INC. executive Caroline Stockdale reported routine equity compensation activity. On March 6, 2026, restricted stock units vested and were exercised into 2,436 shares of common stock at a conversion price of $0.00 per share, and she received a new grant of 1,903 restricted stock units under the company’s 2020 Omnibus Incentive Compensation Plan. On March 9, 2026, a total of 1,041 shares of common stock were sold by the issuer to satisfy tax withholding obligations related to the vesting, and Stockdale held 33,595 common shares directly following these transactions, indicating a small, tax-driven reduction relative to her overall position.

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

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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^*

Stockdale Caroline

(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 People and Comm. Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/06/2026

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	03/06/2026		M		977(1)	A	$0	33,177	D
Common Stock	03/06/2026		M		236(2)	A	$0	33,413	D
Common Stock	03/06/2026		M		537(3)	A	$0	33,950	D
Common Stock	03/06/2026		M		686(4)	A	$0	34,636	D
Common Stock	03/09/2026		S		417(5)	D	$190.36	34,219	D
Common Stock	03/09/2026		S		102(5)	D	$190.36	34,117	D
Common Stock	03/09/2026		S		293(5)	D	$190.36	33,824	D
Common Stock	03/09/2026		S		229(5)	D	$190.36	33,595	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
Restricted Stock Units	(6)	03/06/2026		M			977	(7)	(7)	Common Stock	977	$0	0	D
Restricted Stock Units	(6)	03/06/2026		M			236	(8)	(8)	Common Stock	236	$0	470	D
Restricted Stock Units	(6)	03/06/2026		M			537	(9)	(9)	Common Stock	537	$0	1,074	D
Restricted Stock Units	(6)	03/06/2026		M			686	(10)	(10)	Common Stock	686	$0	2,060	D
Restricted Stock Units	(6)	03/06/2026		A		1,903		(11)	(11)	Common Stock	1,903	$0	1,903	D

Explanation of Responses:

1. Represents shares of common stock issued upon vesting of 20% of the restricted stock units granted on March 6, 2021.

2. Represents shares of common stock issued upon vesting of 20% of the restricted stock units granted on March 6, 2023.

3. Represents shares of common stock issued upon vesting of 25% of the restricted stock units granted on March 6, 2024.

4. Represents shares of common stock issued upon vesting of 25% of the restricted stock units granted on March 6, 2025.

5. Represents shares of common stock sold by the Issuer to satisfy certain tax withholding obligations with the vesting of the restricted stock units.

6. 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.

7. 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.

8. 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.

9. 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.

10. 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.

11. 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.

	/s/ Jason E. Dymbort, attorney-in-fact	03/10/2026
	** Signature of Reporting Person	Date
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FAQ

What insider transactions did Caroline Stockdale report at FIRST SOLAR (FSLR)?

Caroline Stockdale reported RSU vesting, associated share issuance, a new RSU grant, and tax-related share sales. RSUs converted into 2,436 common shares, she received 1,903 new RSUs, and 1,041 shares were sold to cover withholding taxes, leaving 33,595 shares held.

How many FIRST SOLAR (FSLR) shares did Caroline Stockdale sell and why?

A total of 1,041 FIRST SOLAR common shares were sold in several trades at $190.36 per share. Footnotes explain these shares were sold by the issuer to satisfy tax withholding obligations tied to restricted stock unit vesting, not discretionary open-market sales.

How many FIRST SOLAR (FSLR) shares does Caroline Stockdale hold after these transactions?

After the reported transactions, Caroline Stockdale directly holds 33,595 shares of FIRST SOLAR common stock. This reflects RSU conversions adding 2,436 shares and tax-related sales of 1,041 shares, resulting in a relatively small net change in her overall equity position.

What restricted stock unit (RSU) activity did FIRST SOLAR (FSLR) disclose for Caroline Stockdale?

The filing shows multiple RSU tranches vesting into 2,436 common shares at a $0.00 conversion price. It also records a new grant of 1,903 RSUs, which vest annually under FIRST SOLAR’s 2020 Omnibus Incentive Compensation Plan according to specified anniversary schedules.

Were Caroline Stockdale’s FIRST SOLAR (FSLR) transactions routine compensation-related events?

Yes. Footnotes state the RSUs were part of annual equity grants to executive officers and vest on set anniversaries. Shares sold on March 9, 2026 were used to cover tax withholding on these vestings, indicating routine compensation and tax management rather than discretionary trading.

What were the prices involved in Caroline Stockdale’s FIRST SOLAR (FSLR) share transactions?

RSU conversions into common stock were executed at a conversion price of $0.00 per share, consistent with equity awards. The 1,041 shares sold to cover tax withholding obligations were sold at $190.36 per share in separate but same-day transactions on March 9, 2026.