[144] FIRST SOLAR, INC. SEC Filing

Rhea-AI Filing Summary

Filer reported Rule 144 sales and restricted stock vesting. The filing lists a restricted stock vesting of 19 shares on 05/01/2026 tied to compensation and three reported dispositions by Samantha L. Sloan: 111 shares (03/02/2026), 303 shares (03/09/2026), and 120 shares (03/16/2026). The filing includes a share figure of 107,453,363 with a date of 05/05/2026.

Key Figures

Restricted shares vesting: 19 shares Disposition - 03/02/2026: 111 shares Disposition - 03/09/2026: 303 shares +2 more

5 metrics

Restricted shares vesting 19 shares vesting date 05/01/2026, compensation

Disposition - 03/02/2026 111 shares reported sale date 03/02/2026, proceeds $21,748.61

Disposition - 03/09/2026 303 shares reported sale date 03/09/2026, proceeds $57,680.44

Disposition - 03/16/2026 120 shares reported sale date 03/16/2026, proceeds $24,096.23

Shares figure on filing 107,453,363 listed with date 05/05/2026

Key Terms

Restricted Stock Vesting, Rule 144, Disposition

3 terms

Restricted Stock Vesting financial

"Restricted Stock Vesting | Issuer | 19 | 05/01/2026 | Compensation"

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.

Rule 144 regulatory

"Form type 144 (filed to report sales of restricted/controlled securities)"

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.

Disposition financial

"Samantha L. Sloan ... Common | 03/02/2026 | 111 | 21748.61"

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	19	4097.05	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			19	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
Samantha L. Sloan 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	03/02/2026	111	21748.61
Samantha L. Sloan 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	03/09/2026	303	57680.44
Samantha L. Sloan 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	03/16/2026	120	24096.23

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)