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

Rhea-AI Filing Summary

FIRST SOLAR, INC. Chief Product Officer Patrick James Buehler reported routine equity compensation activity involving restricted stock units and related tax withholding. On March 13, 2026, 427 shares of common stock were issued upon vesting of 20% of restricted stock units granted on March 15, 2022 under the 2020 Omnibus Incentive Compensation Plan. To satisfy tax withholding obligations tied to this vesting, 180 shares of common stock were sold by the company at $200.80 per share, a non‑discretionary transaction. After these transactions, Buehler directly held 7,088 shares of First Solar common stock, indicating a net increase in his equity position.

Insights

Insider transactions analyst

Comp-related RSU vesting with tax withholding; limited signaling value.

Chief Product Officer Patrick James Buehler had 427 shares of First Solar common stock issued upon vesting of restricted stock units from a March 15, 2022 grant. This reflects scheduled equity compensation under the 2020 Omnibus Incentive Compensation Plan.

Footnotes state that 180 shares were sold by the issuer to cover tax withholding obligations tied to the vesting, even though the transaction is coded as a sale. Such tax-related dispositions are mechanistic and generally carry little informational value about the insider’s view of the stock.

Following these events, Buehler directly owned 7,088 shares. Because the activity combines RSU vesting with tax withholding and results in a net increase in holdings, it appears routine rather than a thesis-changing transaction for investors.

Insider Trade Summary

Net Seller: 180 shares ($36,144)

Net Sell 3 txns

Insider Buehler Patrick James

Role Chief Product Officer

Sold 180 shs ($36K)

Type	Security	Shares	Price	Value
Sale	Common Stock	180	$200.80	$36K
Exercise	Restricted Stock Units	427	$0.00	--
Exercise	Common Stock	427	$0.00	--

Holdings After Transaction: Common Stock — 7,088 shares (Direct); Restricted Stock Units — 427 shares (Direct)

Footnotes (1)

1. Represents shares of common stock issued upon vesting of 20% of the restricted stock units granted on March 15, 2022. Represents shares of common stock sold by the Issuer to satisfy certain tax withholding obligations with the vesting of the restricted stock units. 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. 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.

Form 4 Insider Transactions: What Each Field Means →

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^*

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)
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		427(1)	A	$0	7,268	D
Common Stock	03/16/2026		S		180(2)	D	$200.8	7,088	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			427	(4)	(4)	Common Stock	427	$0	427	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
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.

FAQ

What insider transactions did First Solar (FSLR) report for Patrick James Buehler?

First Solar reported that Chief Product Officer Patrick James Buehler had 427 shares issued upon RSU vesting, with 180 shares sold by the company to cover tax withholding, resulting in updated direct ownership of 7,088 common shares.

How many First Solar (FSLR) shares did Patrick Buehler acquire through RSU vesting?

Patrick Buehler acquired 427 shares of First Solar common stock upon vesting of 20% of restricted stock units granted on March 15, 2022, under the company’s 2020 Omnibus Incentive Compensation Plan.

Why were 180 First Solar (FSLR) shares sold in Patrick Buehler’s Form 4 filing?

The 180 First Solar shares were sold by the issuer to satisfy tax withholding obligations triggered by the vesting of Buehler’s restricted stock units, making this a non-discretionary, tax-related transaction rather than a typical open-market sale.

What is Patrick Buehler’s First Solar (FSLR) share ownership after these transactions?

After the reported RSU vesting and tax-related share sale, Patrick Buehler directly holds 7,088 shares of First Solar common stock, reflecting his updated equity position as disclosed in the Form 4.

Are Patrick Buehler’s First Solar (FSLR) transactions routine compensation events?

Yes. The filing shows RSU vesting from a March 15, 2022 grant under the 2020 Omnibus Incentive Compensation Plan and a related tax-withholding share sale, both typical features of executive equity compensation programs.