First Solar (FSLR) officer sells 10,628 shares under 10b5-1 plan

Rhea-AI Filing Summary

FIRST SOLAR, INC. executive Caroline Stockdale, Chief People and Communications Officer, sold 10,628 shares of Common Stock in an open-market transaction at $275.60 per share on May 28, 2026.

The sale was effected under a previously adopted Rule 10b5-1 trading plan dated February 27, 2026, indicating it was pre-planned. Following this transaction, Stockdale directly holds 23,792 shares of First Solar common stock.

Insider Trade Summary 10b5-1

Net Seller: 10,628 shares ($2,929,077)

Net Sell 1 txn

Insider Stockdale Caroline

Role Chief People and Comm. Officer

Sold 10,628 shs ($2.93M)

Type	Security	Shares	Price	Value
Sale	Common Stock	10,628	$275.60	$2.93M

Holdings After Transaction: Common Stock — 23,792 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold: 10,628 shares Sale price per share: $275.60 per share Shares held after transaction: 23,792 shares

3 metrics

Shares sold 10,628 shares Open-market sale on May 28, 2026

Sale price per share $275.60 per share Common Stock transaction price

Shares held after transaction 23,792 shares Direct holdings following the sale

Key Terms

Rule 10b5-1 trading plan, open-market sale, Common Stock

3 terms

Rule 10b5-1 trading plan regulatory

"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted..."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

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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^*

Stockdale Caroline

(Last) (First) (Middle)

C/O FIRST SOLAR, INC.

4300 E CAMELBACK ROAD, SUITE 220

(Street)

PHOENIX ARIZONA 85018

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/28/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	05/28/2026(1)		S		10,628	D	$275.6	23,792	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. This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on February 27, 2026.

	/s/ Jason E. Dymbort, attorney-in-fact	06/01/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did First Solar (FSLR) report for Caroline Stockdale?

Caroline Stockdale sold 10,628 shares of First Solar Common Stock. The open-market transaction occurred on May 28, 2026 at $275.60 per share, and was executed under a previously adopted Rule 10b5-1 trading plan.

At what price did Caroline Stockdale sell First Solar (FSLR) shares?

She sold First Solar shares at $275.60 per share. The transaction involved 10,628 shares of Common Stock in an open-market sale on May 28, 2026, under a pre-arranged Rule 10b5-1 trading plan.

How many First Solar (FSLR) shares does Caroline Stockdale hold after the sale?

After the transaction, Caroline Stockdale directly holds 23,792 shares of First Solar Common Stock. This figure reflects her remaining position following the May 28, 2026 open-market sale of 10,628 shares at $275.60 each.

Was Caroline Stockdale’s First Solar (FSLR) share sale under a Rule 10b5-1 plan?

Yes, the sale was executed pursuant to a Rule 10b5-1 trading plan. The plan was previously adopted on February 27, 2026, meaning the timing of the May 28, 2026 sale was pre-arranged rather than discretionary.

What role does Caroline Stockdale hold at First Solar (FSLR)?

Caroline Stockdale serves as First Solar’s Chief People and Communications Officer. Her Form 4 filing reports an open-market sale of 10,628 shares of Common Stock at $275.60 per share, leaving her with 23,792 shares held directly.