Mark Widmar plans $502K sale of First Solar stock

FSLR files a Form 144 reporting proposed and recent affiliate sales of Common Stock.

Rhea-AI Filing Summary

FSLR files a Form 144 reporting proposed and recent affiliate sales of Common Stock. The notice lists a proposed sale associated with Fidelity Brokerage Services LLC and multiple sales by Mark Widmar between 03/02/2026 and 05/21/2026, showing individual lot sizes and gross proceeds for each listed sale.

Insights

Securities Compliance Analyst

Form 144 discloses proposed affiliate sales and recent dispositions by an insider.

Form 144 is a notice required for affiliates proposing to sell restricted or control securities in reliance on Rule 144. The filing lists a proposed sale via Fidelity Brokerage Services LLC and several completed sales by Mark Widmar with dates and gross proceeds.

Cash‑flow treatment and any holding-period qualifiers are not detailed in the excerpt; subsequent trade confirmations or broker disclosures would provide final settlement details.

Key Figures

Reported figure: 107,453,363 Proposed/related value: 502,457.72 Sale — 03/02/2026: 7,738 shares +4 more

7 metrics

Reported figure 107,453,363 listed adjacent to NASDAQ in the excerpt

Proposed/related value 502,457.72 numeric value shown near Fidelity Brokerage Services LLC row

Sale — 03/02/2026 7,738 shares Mark Widmar sale on <date>03/02/2026</date>

Proceeds — 03/02/2026 $1,516,132.65 Gross proceeds paired with 7,738 shares

Sale — 05/11/2026 9,926 shares Mark Widmar sale on <date>05/11/2026</date>

Proceeds — 05/11/2026 $2,314,876.35 Gross proceeds paired with 9,926 shares

Restricted stock vesting date 03/06/2026 Transaction labelled 'Restricted Stock Vesting' with issuer source

Key Terms

Form 144, Restricted Stock Vesting, Issuer

3 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 | 03/06/2026 | 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 regulatory

"Restricted Stock Vesting | Issuer"

FAQ

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

What does FSLR's Form 144 disclose about insider sales?

It discloses proposed and recent affiliate sales of Common Stock. The filing lists a proposed sale involving Fidelity Brokerage Services LLC and multiple sales by Mark Widmar with dates and gross proceeds between 03/02/2026 and 05/21/2026.

Who is the insider named in the FSLR Form 144 and what sales are shown?

The filing names Mark Widmar and shows discrete sales on 03/02/2026, 03/09/2026, 03/16/2026, 05/05/2026, 05/11/2026, 05/13/2026, and 05/21/2026 with listed share counts and gross proceeds for each transaction.

What sizes and proceeds are reported for Mark Widmar's recent dispositions?

Reported lot sizes include 7,738; 5,537; 1,937; 1,526; 9,926; 1,300; and 4,815 shares. The filing pairs each lot with gross proceeds, for example $1,516,132.65 for 7,738 shares and $2,314,876.35 for 9,926 shares, as shown in the excerpt.

Does the Form 144 state who will receive proceeds from the Fidelity-listed sale?

The excerpt lists Fidelity Brokerage Services LLC in connection with Common stock and a date of 05/22/2026, but it does not state the recipient of proceeds or further distribution details in the provided text.

Is the proposed sale tied to a restricted stock vesting event?

Yes, the filing includes an entry labeled Restricted Stock Vesting with a transaction date of 03/06/2026 and an issuer source, indicating at least one lot relates to compensation vesting as shown in the excerpt.

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

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Accepted by SEC EDGAR 05/22/2026 - 04:05 PM 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	0001362208
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	Widmar Mark R
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
Relationship to Issuer	Director

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	1977	502457.72	107453363	05/22/2026	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			1977	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
Mark Widmar 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	03/02/2026	7738	1516132.65
Mark Widmar 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	03/09/2026	5537	1054048.23
Mark Widmar 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	03/16/2026	1937	388953.28
Mark Widmar 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	05/05/2026	1526	329058.09
Mark Widmar 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	05/11/2026	9926	2314876.35
Mark Widmar 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	05/13/2026	1300	312030.79
Mark Widmar 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	05/21/2026	4815	1191358.23

144: Remarks and Signature

Remarks
Date of Notice	05/22/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/06/2025
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/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Mark Widmar
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)