Insider files to sell 215 shares tied to vesting

Michael S. Koralewski reported a proposed sale of 215 shares of Common Stock.

Rhea-AI Filing Summary

Michael S. Koralewski reported a proposed sale of 215 shares of Common Stock. The filing lists 215 shares tied to a Restricted Stock Vesting event dated 05/01/2026 and an aggregate value of $46,361.40. The notice also lists prior sales during March: 1,330, 756, and 264 shares with the dollar amounts shown.

Key Figures

Proposed sale: 215 shares Aggregate value: $46,361.40 March sale 1: 1,330 shares +4 more

7 metrics

Proposed sale 215 shares Restricted Stock Vesting on 05/01/2026

Aggregate value $46,361.40 Value shown next to 215 shares

March sale 1 1,330 shares Sale dated 03/02/2026 with $260,591.42 shown

March sale 1 value $260,591.42 Amount shown for 1,330-share sale on 03/02/2026

March sale 2 756 shares Sale dated 03/09/2026

March sale 3 264 shares Sale dated 03/16/2026 with $53,011.70 shown

March sale 3 value $53,011.70 Amount shown for 264-share sale on 03/16/2026

Key Terms

Form 144, Restricted Stock Vesting, Issuer, Fidelity Brokerage Services LLC

4 terms

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Common | 05/01/2026 | Restricted Stock Vesting"

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.

Issuer financial

"Restricted Stock Vesting | Issuer"

Fidelity Brokerage Services LLC market

"Common | Fidelity Brokerage Services LLC 900 Salem Street"

FAQ

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

What does the FSLR Form 144 filed by Michael S. Koralewski report?

The filing reports a proposed sale of 215 shares of common stock tied to a Restricted Stock Vesting event on 05/01/2026. It also lists three March sales of 1,330, 756, and 264 shares.

When is the restricted stock vesting date listed in the FSLR Form 144?

The restricted stock vesting date is shown as 05/01/2026. The filing ties the 215 shares being offered to that vesting event and shows an aggregate value of $46,361.40 in the excerpt.

How many shares did Michael S. Koralewski sell in the prior three months according to the filing?

The filing records three separate March transactions totaling 2,350 shares sold: 1,330 (03/02/2026), 756 (03/09/2026), and 264 (03/16/2026). Dollar amounts are listed for each sale in the excerpt.

What dollar values are shown for the proposed 215-share sale in the Form 144?

The excerpt lists an aggregate value of $46,361.40 associated with the 215 shares of common stock and shows the security is listed on NASDAQ in the provided line.

Does the Form 144 excerpt indicate the method or broker for the proposed sale?

The excerpt names Fidelity Brokerage Services LLC with an address, indicating a brokerage connection. The filing does not further specify sale method details in the provided excerpt.

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

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Accepted by SEC EDGAR 05/05/2026 - 03:09 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	0001819693
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	Koralewski Michael
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	215	46361.40	107453363	05/05/2026	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	05/01/2026	Restricted Stock Vesting	Issuer			215	05/01/2026	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
Michael S. Koralewski 4300 E Camelback Road, Suite 220 Phoenix AZ 85018	Common	03/02/2026	1330	260591.42
Michael S. Koralewski 4300 E Camelback Road, Suite 220 Phoenix AZ 85018	Common	03/09/2026	756	143915.56
Michael S. Koralewski 4300 E Camelback Road, Suite 220 Phoenix AZ 85018	Common	03/16/2026	264	53011.70

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	05/05/2026
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 Michael S. Koralewski
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)