First Solar officer plans $160K stock sale

Rhea-AI Filing Summary

FIRST SOLAR, INC. (FSLR) is the issuer for a planned sale of its common stock by officer Markus Gloeckler under Rule 144. The notice covers 800 shares of common stock, with an aggregate market value of $160,000.00, to be sold through Fidelity Brokerage Services LLC on or about September 1, 2026 on NASDAQ.

The 800 shares are to be acquired via restricted stock vesting from the issuer as compensation on March 6, 2026. Over the prior three months, Gloeckler reported sales of 3,425 shares for $749,902.50 on August 3, 2026 and 829 shares for $205,592.00 on August 4, 2026. Shares of First Solar outstanding are listed as 107,469,788.

Key Figures

Shares to be sold: 800 shares Aggregate market value of proposed sale: $160,000.00 Shares outstanding: 107,469,788 shares +4 more

7 metrics

Shares to be sold 800 shares Proposed sale of First Solar common stock under Rule 144

Aggregate market value of proposed sale $160,000.00 Value of 800 shares of First Solar common stock to be sold

Shares outstanding 107,469,788 shares First Solar common stock shares outstanding referenced in the notice

Prior sale on August 3, 2026 3,425 shares for $749,902.50 Securities sold during the past 3 months by Markus Gloeckler

Prior sale on August 4, 2026 829 shares for $205,592.00 Securities sold during the past 3 months by Markus Gloeckler

Acquisition date of restricted stock March 6, 2026 Date of restricted stock vesting for the 800 shares

Approximate sale date September 1, 2026 Approximate date of proposed sale of 800 shares on NASDAQ

Key Terms

Rule 144, Restricted Stock Vesting, attorney-in-fact

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Common | 03/06/2026 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

attorney-in-fact regulatory

"as attorney-in-fact for Markus Gloeckler"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What sale is being reported for FIRST SOLAR, INC. (FSLR) in this Form 144?

The notice reports a proposed sale of 800 shares of First Solar common stock by officer Markus Gloeckler under Rule 144, with an aggregate market value of $160,000.00, to be sold through Fidelity Brokerage Services LLC on or about September 1, 2026 on NASDAQ.

How will Markus Gloeckler acquire the 800 FSLR shares to be sold?

The 800 shares covered by the notice are to be acquired as restricted stock vesting from First Solar on March 6, 2026, received as compensation from the issuer before being eligible for sale under Rule 144.

How many First Solar (FSLR) shares are outstanding according to this filing?

The filing lists 107,469,788 shares outstanding of First Solar common stock. This figure provides a reference for the relative size of the planned and recent sales compared with the company’s total common shares.

What First Solar (FSLR) stock sales has Markus Gloeckler made in the past 3 months?

Over the past three months, Markus Gloeckler reported selling 3,425 shares of First Solar common stock for $749,902.50 on August 3, 2026 and 829 shares for $205,592.00 on August 4, 2026.

Which broker is handling the planned sale of FSLR shares under this Form 144?

The planned sale of 800 shares of First Solar common stock is to be executed through Fidelity Brokerage Services LLC, located at 900 Salem Street, Smithfield, RI 02917, as stated in the Rule 144 notice.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/01/2026 - 02:01 PM EDT Accepted by SEC EDGAR 09/01/2026 - 02:01 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001819680
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	FIRST SOLAR, INC.
SEC File Number	001-33156
Address of Issuer	4300 E CAMELBACK ROAD SUITE 220 PHOENIX ARIZONA 85018
Phone	(602) 414-9300
Name of Person for Whose Account the Securities are To Be Sold	Gloeckler Markus
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	800	160000.00	107469788	09/01/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/06/2026	Restricted Stock Vesting	Issuer			800	03/06/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Markus Gloeckler 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	08/03/2026	3425	749902.50
Markus Gloeckler 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	08/04/2026	829	205592.00

144: Remarks and Signature

Remarks
Date of Notice	09/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/04/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Markus Gloeckler
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)