First Solar (FSLR) HR chief reports RSU vesting and tax-related share sale

Rhea-AI Filing Summary

FIRST SOLAR, INC. executive Caroline Stockdale reported routine equity compensation activity. On March 13, 2026, 800 shares of common stock were issued to her upon vesting of restricted stock units granted on March 15, 2022 under the 2020 Omnibus Incentive Compensation Plan. In connection with this vesting, 335 shares of common stock were sold by the company on March 16, 2026 to satisfy tax withholding obligations, rather than as a discretionary market sale. Following these transactions, Stockdale directly holds 34,060 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

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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)
03/13/2026

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	03/13/2026		M		800(1)	A	$0	34,395	D
Common Stock	03/16/2026		S		335(2)	D	$200.8	34,060	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	(3)	03/13/2026		M			800	(4)	(4)	Common Stock	800	$0	800	D

Explanation of Responses:

1. Represents shares of common stock issued upon vesting of 20% of the restricted stock units granted on March 15, 2022.

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

3. 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.

4. 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.

	/s/ Jason E. Dymbort, attorney-in-fact	03/17/2026
	** Signature of Reporting Person	Date
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FAQ

What insider transactions did FSLR executive Caroline Stockdale report?

Caroline Stockdale reported RSU vesting and related tax withholding. She received 800 First Solar common shares from vested restricted stock units, and 335 shares were sold by the company to cover tax withholding obligations tied to that vesting.

How many First Solar (FSLR) shares does Caroline Stockdale hold after this Form 4?

After the reported transactions, Caroline Stockdale holds 34,060 shares. These are directly owned shares of First Solar common stock, reflecting the net impact of the restricted stock unit vesting and the shares sold for tax withholding.

Was the First Solar (FSLR) insider sale a discretionary market sale?

The 335-share sale was for tax withholding, not a discretionary sale. Footnotes state the shares were sold by First Solar to satisfy tax obligations related to the vesting of restricted stock units granted in March 2022.

What triggered the 800-share issuance to the FSLR executive?

The 800 shares came from restricted stock units vesting. They represent 20% of restricted stock units granted on March 15, 2022 as part of First Solar’s annual equity awards to executive officers, scheduled to vest in 20% increments on each anniversary.

How do the restricted stock units for FSLR’s Caroline Stockdale vest over time?

The RSUs granted March 15, 2022 vest in 20% annual installments. They are part of First Solar’s 2020 Omnibus Incentive Compensation Plan, with each restricted stock unit delivering one share of common stock upon vesting on each anniversary date.

Does this FSLR Form 4 indicate remaining derivative positions for the executive?

The filing shows RSU vesting and an associated derivative exercise. It reports 800 restricted stock units exercised into common shares in this event, while the summary of remaining derivative positions in this specific filing is shown as empty.