First Solar (FSLR) counsel sells 9,380 shares after RSU vest and 10b5-1 plan

Rhea-AI Filing Summary

FIRST SOLAR, INC. General Counsel and Secretary Jason E. Dymbort reported a combination of stock vesting and share sales. On March 13, 2026, 854 restricted stock units vested and converted into 854 shares of common stock, issued at a conversion price of $0.00 under the company’s 2020 Omnibus Incentive Compensation Plan. On the same date, his common stock holdings increased to 19,230 shares, and 853 restricted stock units remained outstanding from that grant.

To cover related tax withholding obligations and pursuant to a pre-established Rule 10b5-1 trading plan, a total of 9,380 common shares were sold in open-market transactions on March 16–17, 2026, including 358 shares at $200.80 per share and 9,022 shares at a weighted average price of $199.62. After these transactions, Dymbort directly held 9,850 shares of First Solar common stock.

Insider Trade Summary 10b5-1

Net Seller: 9,380 shares ($1,872,858)

Net Sell 4 txns

Insider Dymbort Jason E.

Role General Counsel and Secretary

Sold 9,380 shs ($1.87M)

Type	Security	Shares	Price	Value
Sale	Common Stock	9,022	$199.62	$1.80M
Sale	Common Stock	358	$200.80	$72K
Exercise	Restricted Stock Units	854	$0.00	--
Exercise	Common Stock	854	$0.00	--

Holdings After Transaction: Common Stock — 9,850 shares (Direct); Restricted Stock Units — 853 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. This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on November 13, 2025. This transaction was executed in multiple trades at prices ranging from $199.53 to $200.00. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. 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).

X

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^*

Dymbort Jason E.

(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)
	General Counsel and Secretary

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		854(1)	A	$0	19,230	D
Common Stock	03/16/2026		S		358(2)	D	$200.8	18,872	D
Common Stock	03/17/2026(3)		S		9,022	D	$199.62(4)	9,850	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	(5)	03/13/2026		M			854	(6)	(6)	Common Stock	854	$0	853	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. This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on November 13, 2025.

4. This transaction was executed in multiple trades at prices ranging from $199.53 to $200.00. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

5. 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.

6. 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	03/17/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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** 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 Jason E. Dymbort?

Jason E. Dymbort reported both an equity vesting and share sales. 854 restricted stock units vested into common shares on March 13, 2026, and a total of 9,380 common shares were subsequently sold in open-market transactions on March 16 and 17, 2026.

How many First Solar (FSLR) shares did Jason E. Dymbort sell and at what prices?

Dymbort sold 9,380 First Solar common shares in total. The filing shows 358 shares sold at $200.80 per share and 9,022 shares sold at a weighted average price of $199.62, executed across multiple trades within a narrow intraday price range.

Were Jason E. Dymbort’s First Solar (FSLR) share sales under a Rule 10b5-1 plan?

Yes. The filing states the transactions were under a Rule 10b5-1 plan. A footnote notes they were effected pursuant to a trading plan adopted on November 13, 2025, indicating the sales were pre-arranged rather than timed discretionarily around short-term market events.

How many First Solar (FSLR) shares does Jason E. Dymbort hold after these transactions?

After the reported transactions, Dymbort directly holds 9,850 common shares. In addition, the Form 4 shows 853 restricted stock units remaining from the March 15, 2022 equity grant, which are scheduled to vest annually at a 20% rate on each grant anniversary.

What is the source of the restricted stock units in Jason E. Dymbort’s First Solar (FSLR) Form 4?

The restricted stock units come from a March 15, 2022 equity grant. They were awarded as part of First Solar’s annual executive equity program and vest in 20% increments on each anniversary of the grant date under the 2020 Omnibus Incentive Compensation Plan.

Did some of Jason E. Dymbort’s First Solar (FSLR) shares get sold for tax withholding?

Yes. A portion of shares was sold to satisfy tax withholding obligations. A footnote explains that certain common shares were sold by the issuer to cover withholding taxes triggered by the vesting of the restricted stock units reported in this Form 4.