Mark Widmar files Form 144 listing proposed sales

Mark Widmar reported multiple proposed sales of Common Stock on Form 144.

Rhea-AI Filing Summary

Mark Widmar reported multiple proposed sales of Common Stock on Form 144. The filing lists proposed dispositions on 03/02/2026, 03/09/2026, 03/16/2026, 05/05/2026, 05/11/2026, 05/13/2026, 05/21/2026, and 05/22/2026 with share amounts and gross proceeds shown for each trade. The document also shows recent restricted stock vesting on 03/15/2026 (2,919 shares) and 05/01/2026 (2,276 shares).

Insights

Corporate Governance Analyst

Insider filed Form 144 listing multiple proposed sales by Mark Widmar.

The filing enumerates proposed dispositions on specific dates with per-trade share counts and gross proceeds (for example, $1,516,132.65 for 03/02/2026). The entries reflect planned sales reporting, not execution detail.

Cash-flow treatment and whether trades were executed are not stated in the excerpt; subsequent filings would show actual transactions or amendments.

Key Figures

Proceeds on 03/02/2026: $1,516,132.65 Proceeds on 05/11/2026: $2,314,876.35 Shares sold on 05/21/2026: 4,815 shares +3 more

6 metrics

Proceeds on 03/02/2026 $1,516,132.65 gross proceeds reported for 7,738 shares on <date>03/02/2026</date>

Proceeds on 05/11/2026 $2,314,876.35 gross proceeds reported for 9,926 shares on <date>05/11/2026</date>

Shares sold on 05/21/2026 4,815 shares proposed disposition dated <date>05/21/2026</date>

Vesting on 03/15/2026 2,919 shares Restricted stock vesting reported as compensation on <date>03/15/2026</date>

Vesting on 05/01/2026 2,276 shares Restricted stock vesting reported as compensation on <date>05/01/2026</date>

Proceeds on 03/09/2026 $1,054,048.23 gross proceeds reported for 5,537 shares on <date>03/09/2026</date>

Key Terms

Form 144, Restricted Stock Vesting, Broker/Dealer (Fidelity Brokerage Services LLC)

3 terms

Form 144 regulatory

"lists proposed dispositions with dates, share counts, and gross proceeds"

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

"03/15/2026 Restricted Stock Vesting Issuer 2,919 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.

Broker/Dealer (Fidelity Brokerage Services LLC) market

"Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917"

FAQ

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

What did Form 144 for FSLR disclose about Mark Widmar's sales?

It lists proposed dispositions on eight dates with per-trade share counts and gross proceeds. The excerpt shows dates from 03/02/2026 to 05/22/2026 and proceeds such as $1,516,132.65 on 03/02/2026.

How many shares vested for compensation according to the filing?

The filing shows two restricted stock vesting events totaling disclosed shares by event. It lists 2,919 shares vesting on 03/15/2026 and 2,276 shares vesting on 05/01/2026, labeled as compensation.

Does the Form 144 confirm the sales were executed?

No—Form 144 here shows proposed dispositions with dates, counts, and gross proceeds per line. The excerpt does not state whether each proposed sale was executed or settled.

What gross proceeds are shown for the largest listed trade?

The largest single gross proceeds shown in the excerpt is $2,314,876.35 for the trade dated 05/11/2026. Each trade line pairs a share count with its gross proceeds amount.

Who is the broker/dealer listed for these transactions?

The broker/dealer shown is Fidelity Brokerage Services LLC at 900 Salem Street, Smithfield, RI. The filing includes that broker-dealer entry alongside the security and exchange information.

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

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Accepted by SEC EDGAR 05/26/2026 - 04:07 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	5195	1397347.37	107453363	05/26/2026	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	03/15/2026	Restricted Stock Vesting	Issuer			2919	03/15/2026	Compensation
Common	05/01/2026	Restricted Stock Vesting	Issuer			2276	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
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
Mark Widmar 4300 E Camelback Road Suite 220 Phoenix AZ 85018	Common	05/22/2026	1977	502457.72

144: Remarks and Signature

Remarks
Date of Notice	05/26/2026
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)