First Solar Form 144: Affiliate plans common stock sales

First Solar, Inc. filed a Form 144 reporting proposed sales of Common Stock by an affiliate.

Rhea-AI Filing Summary

First Solar, Inc. filed a Form 144 reporting proposed sales of Common Stock by an affiliate. The notice lists multiple proposed dispositions by Mark Widmar on specific dates with individual share counts and gross proceeds for each sale. The filing also records a restricted stock vesting of 4,815 shares on 03/06/2026 tied to compensation.

Insights

Securities Counsel

Routine Form 144 notice of proposed affiliate sales; no new material company disclosures.

The filing lists proposed dispositions of Common Stock by an affiliate and a restricted stock vesting of 4,815 shares on 03/06/2026 described as Compensation. Form 144 is a notice of intent to sell and does not itself effect transfers.

Timing and final transaction methods are not included; subsequent broker reports or Form 4/Form 5 filings will show completed sales or transfers.

Corporate Governance Analyst

Insider transactions are itemized by date and gross proceeds, indicating multiple dispositions.

The excerpt lists several sale dates for Mark Widmar with per‑trade share counts and gross proceeds (for example, 9,926 shares for $2,314,876.35 on 05/11/2026), which provide clear transaction-level detail.

These entries show individual sales but do not state remaining holdings or whether sales were pre‑arranged; additional filings may clarify ownership impact.

Key Figures

Restricted shares vested: 4,815 shares Sale example 1: 9,926 shares Sale example 2: 7,738 shares +2 more

5 metrics

Restricted shares vested 4,815 shares Restricted Stock Vesting on 03/06/2026 (Compensation)

Sale example 1 9,926 shares Sale on 05/11/2026 with gross proceeds $2,314,876.35

Sale example 2 7,738 shares Sale on 03/02/2026 with gross proceeds $1,516,132.65

Sale example 3 5,537 shares Sale on 03/09/2026 with gross proceeds $1,054,048.23

Sale example 4 1,300 shares Sale on 05/13/2026 with gross proceeds $312,030.79

Key Terms

Form 144, Restricted Stock Vesting, Gross proceeds

3 terms

Form 144 regulatory

"Filed notice of proposed sale of restricted or control securities"

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

"03/06/2026 Restricted Stock Vesting described as 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.

Gross proceeds financial

"Per‑trade cash amounts listed alongside share counts (e.g., $2,314,876.35)"

The total amount of cash a company receives from a financing event or sale before any fees, expenses, taxes or deductions are taken out. Investors watch gross proceeds because it shows the raw scale of new capital being raised—think of it as the paycheck amount before withholdings—which helps assess how much funding is available for operations, growth, debt payoff or how much shareholder dilution might occur once costs are removed.

FAQ

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

What does First Solar's (FSLR) Form 144 report show?

The Form 144 shows proposed sales of Common Stock by an affiliate and multiple reported sales by Mark Widmar with dates, share counts, and gross proceeds. It also records a restricted stock vesting of 4,815 shares on 03/06/2026 tied to compensation.

Who is the selling party in the FSLR Form 144 filing?

The filing identifies Mark Widmar as the person associated with multiple reported sales on specific dates, and lists Fidelity Brokerage Services LLC as broker information for a proposed sale of Common Stock in the cover lines.

How many shares vested as restricted stock in this filing?

The document states a restricted stock vesting of 4,815 shares on 03/06/2026 described under the securities to be sold section and labeled as Compensation.

Do the Form 144 entries mean the shares have already been sold?

No; Form 144 is a notice of intent to sell for affiliates and does not itself complete transfers. The filing lists dates and gross proceeds for reported sales, but settlement and final reporting occur through broker/dealer records and subsequent SEC forms.

What sales by Mark Widmar are listed and what were the gross proceeds?

Examples shown include 9,926 shares on 05/11/2026 for $2,314,876.35 and 7,738 shares on 03/02/2026 for $1,516,132.65. Each row in the excerpt pairs a sale date with shares and gross proceeds.

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

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Accepted by SEC EDGAR 05/21/2026 - 04:27 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	4815	1191358.23	107453363	05/21/2026	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			4815	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

144: Remarks and Signature

Remarks
Date of Notice	05/21/2026
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/ Adam Gehring, 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)