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First Solar (FSLR) CEO Mark Widmar sells 11,226 shares under trading plan

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

FIRST SOLAR, INC. Chief Executive Officer Mark R. Widmar reported open-market sales of company common stock totaling 11,226 shares. The sales occurred on May 11 and May 13, 2026 at reported prices ranging from about $230.18 to $240.02 per share.

After these transactions, Widmar directly holds 93,848 shares of First Solar common stock. The filing notes that at least one transaction was executed under a previously adopted Rule 10b5-1 trading plan and that several sales were carried out in multiple trades, with prices reported as weighted averages.

Positive

  • None.

Negative

  • None.
Insider Widmar Mark R
Role Chief Executive Officer
Sold 11,226 shs ($2.63M)
Type Security Shares Price Value
Sale Common Stock 1,300 $240.02 $312K
Sale Common Stock 1,500 $230.18 $345K
Sale Common Stock 1,026 $231.53 $238K
Sale Common Stock 2,262 $232.55 $526K
Sale Common Stock 1,877 $233.56 $438K
Sale Common Stock 1,498 $234.84 $352K
Sale Common Stock 1,363 $235.69 $321K
Sale Common Stock 400 $236.53 $95K
Holdings After Transaction: Common Stock — 93,848 shares (Direct, null)
Footnotes (1)
  1. This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on November 6, 2025. This transaction was executed in multiple trades at prices ranging from $230 to $230.61. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $231.10 to $231.95. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $232.10 to $233.07. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $233.18 to $234.05. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $234.34 to $235.15. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $235.37 to $236.29. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $236.49 to $236.56. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $240 to $240.13. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Shares sold 11,226 shares Total common shares sold across Form 4 transactions
Post-sale holdings 93,848 shares Common shares directly held after final reported sale
Sale price (low) $230.18 per share Lowest weighted-average sale price reported among transactions
Sale price (high) $240.02 per share Highest weighted-average sale price reported among transactions
Number of sale transactions 8 transactions Non-derivative open-market sales of common stock
Net share change -11,226 shares Net selling activity from transaction summary
10b5-1 plan adoption date November 6, 2025 Date CEO adopted Rule 10b5-1 trading plan cited in footnote
Rule 10b5-1 trading plan regulatory
"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average sale price financial
"The price reported above reflects the weighted average sale price for the transactions reported on this line"
open-market sale financial
"transaction_action": "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
non-derivative financial
"transaction_type": "non-derivative""
beneficially owned financial
"total_shares_following_transaction": "93848.0000"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Widmar Mark R
(Last)(First)(Middle)
C/O FIRST SOLAR, INC.
4300 E CAMELBACK ROAD, SUITE 220
(Street)
PHOENIX ARIZONA 85018
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
FIRST SOLAR, INC. [ FSLR ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/11/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock05/11/2026(1)S1,500D$230.18(2)103,574D
Common Stock05/11/2026(1)S1,026D$231.53(3)102,548D
Common Stock05/11/2026(1)S2,262D$232.55(4)100,286D
Common Stock05/11/2026(1)S1,877D$233.56(5)98,409D
Common Stock05/11/2026(1)S1,498D$234.84(6)96,911D
Common Stock05/11/2026(1)S1,363D$235.69(7)95,548D
Common Stock05/11/2026(1)S400D$236.53(8)95,148D
Common Stock05/13/2026(1)S1,300D$240.02(9)93,848D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on November 6, 2025.
2. This transaction was executed in multiple trades at prices ranging from $230 to $230.61. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
3. This transaction was executed in multiple trades at prices ranging from $231.10 to $231.95. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
4. This transaction was executed in multiple trades at prices ranging from $232.10 to $233.07. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
5. This transaction was executed in multiple trades at prices ranging from $233.18 to $234.05. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
6. This transaction was executed in multiple trades at prices ranging from $234.34 to $235.15. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
7. This transaction was executed in multiple trades at prices ranging from $235.37 to $236.29. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
8. This transaction was executed in multiple trades at prices ranging from $236.49 to $236.56. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
9. This transaction was executed in multiple trades at prices ranging from $240 to $240.13. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
/s/ Jason E. Dymbort, attorney-in-fact05/13/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What did First Solar (FSLR) CEO Mark Widmar report in this Form 4?

Mark R. Widmar reported selling 11,226 shares of First Solar common stock in open-market transactions. The sales took place on May 11 and May 13, 2026, at per-share prices in the low-to-mid $230s and around $240, as disclosed.

How many First Solar (FSLR) shares does CEO Mark Widmar still own after these sales?

Following the reported transactions, Mark Widmar directly holds 93,848 shares of First Solar common stock. This post-transaction holding figure comes from the Form 4 data, which lists total shares beneficially owned after the final reported sale.

At what prices did the First Solar (FSLR) CEO sell his shares?

The reported weighted-average sale prices range from about $230.18 to $240.02 per share. Footnotes add that individual trades occurred within narrower ranges between $230 and $240.13, with the Form 4 showing the weighted averages for each transaction line.

Were First Solar (FSLR) CEO Mark Widmar’s stock sales under a Rule 10b5-1 plan?

Yes. A footnote states that at least one transaction was effected under a Rule 10b5-1 trading plan adopted on November 6, 2025. Such pre-arranged plans allow insiders to schedule trades in advance under predetermined conditions.

How many separate sale transactions did the First Solar (FSLR) Form 4 report?

The filing reports eight non-derivative sale transactions in First Solar common stock. Each entry lists the number of shares sold, a weighted-average sale price, and the resulting share balance, contributing to a total of 11,226 shares sold across all lines.