STOCK TITAN

First Solar (NASDAQ: FSLR) CEO sells 7,172 shares under Rule 10b5-1 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 7,172 shares of Common Stock. The transactions took place over 17 separate trades on May 22 and May 26, 2026, at sale prices generally ranging from about $250 to $276 per share.

All of these sales were executed under a pre-arranged Rule 10b5-1 trading plan that Widmar previously adopted on November 6, 2025. The filing shows only sales and no option exercises or gifts, and he continues to hold a substantial direct equity stake after these transactions.

Positive

  • None.

Negative

  • None.

Insights

CEO’s 7,172-share sale is a planned, routine disposition under a Rule 10b5-1 plan.

First Solar’s CEO, Mark R. Widmar, reported selling 7,172 shares of Common Stock in 17 open-market transactions on May 22, 2026 and May 26, 2026. Reported sale prices span from roughly $250 to $276.29 per share, based on weighted-average prices and disclosed intra-day ranges.

The filing states these trades were executed under a pre-established Rule 10b5-1 trading plan adopted on November 6, 2025, indicating the timing was pre-planned rather than opportunistic. There are no derivative exercises or tax-withholding entries in this report, and the CEO retains a significant direct shareholding after the sales.

Because the total 7,172 shares sold is modest in absolute terms for a listed company and the activity is governed by a 10b5-1 plan, this looks like a routine liquidity event rather than a thesis-changing signal. Subsequent company filings may offer additional context on executive equity ownership over time.

Insider Widmar Mark R
Role Chief Executive Officer
Sold 7,172 shs ($1.90M)
Type Security Shares Price Value
Sale Common Stock 364 $265.15 $97K
Sale Common Stock 1,237 $266.60 $330K
Sale Common Stock 628 $267.72 $168K
Sale Common Stock 1,009 $268.89 $271K
Sale Common Stock 632 $270.05 $171K
Sale Common Stock 726 $271.23 $197K
Sale Common Stock 473 $273.17 $129K
Sale Common Stock 126 $276.29 $35K
Sale Common Stock 239 $250.02 $60K
Sale Common Stock 172 $251.53 $43K
Sale Common Stock 97 $252.87 $25K
Sale Common Stock 218 $253.63 $55K
Sale Common Stock 916 $254.93 $234K
Sale Common Stock 64 $255.59 $16K
Sale Common Stock 75 $256.32 $19K
Sale Common Stock 149 $257.55 $38K
Sale Common Stock 47 $258.48 $12K
Holdings After Transaction: Common Stock — 86,692 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 $250 to $250.80. 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 $251.12 to $252.10. 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 $252.18 to $253.12. 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 $253.23 to $254.20. 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 $254.27 to $255.23. 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 $255.31 to $255.88. 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 $255.93 to $256.76. 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 $256.92 to $257.81. 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 $258.17 to $259.05. 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 $264.92 to $265.53. 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 $266.13 to $267.01. 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 $267.39 to $268.33. 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 $268.47 to $269.17. 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 $269.80 to $270.41. 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 $270.88 to $271.85. 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 $272.59 to $273.58. 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 $276.28 to $276.29. 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.
Shares sold 7,172 shares Total Common Stock sold by CEO across all reported transactions
Number of sale transactions 17 trades Open-market sale transactions reported in Form 4
Lowest disclosed price range $250 to $250.80 Intra-day range for one sale line per footnote F5
Highest disclosed price range $276.28 to $276.29 Intra-day range for one sale line per footnote F18
Rule 10b5-1 plan adoption date November 6, 2025 Date CEO adopted the trading plan governing these sales
Rule 10b5-1 trading plan financial
"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.
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.
weighted average sale price financial
"The price reported above reflects the weighted average sale price for the transactions reported on this line."
Common Stock financial
"security_title": "Common Stock""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
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)
05/22/2026
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 Stock05/22/2026(1)S239D$250.02(2)88,794D
Common Stock05/22/2026(1)S172D$251.53(3)88,622D
Common Stock05/22/2026(1)S97D$252.87(4)88,525D
Common Stock05/22/2026(1)S218D$253.63(5)88,307D
Common Stock05/22/2026(1)S916D$254.93(6)87,391D
Common Stock05/22/2026(1)S64D$255.59(7)87,327D
Common Stock05/22/2026(1)S75D$256.32(8)87,252D
Common Stock05/22/2026(1)S149D$257.55(9)87,103D
Common Stock05/22/2026(1)S47D$258.48(10)87,056D
Common Stock05/26/2026(1)S364D$265.15(11)86,692D
Common Stock05/26/2026(1)S1,237D$266.6(12)85,455D
Common Stock05/26/2026(1)S628D$267.72(13)84,827D
Common Stock05/26/2026(1)S1,009D$268.89(14)83,818D
Common Stock05/26/2026(1)S632D$270.05(15)83,186D
Common Stock05/26/2026(1)S726D$271.23(16)82,460D
Common Stock05/26/2026(1)S473D$273.17(17)81,987D
Common Stock05/26/2026(1)S126D$276.29(18)81,861D
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 $250 to $250.80. 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 $251.12 to $252.10. 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 $252.18 to $253.12. 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 $253.23 to $254.20. 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 $254.27 to $255.23. 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 $255.31 to $255.88. 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 $255.93 to $256.76. 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 $256.92 to $257.81. 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.
10. This transaction was executed in multiple trades at prices ranging from $258.17 to $259.05. 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.
11. This transaction was executed in multiple trades at prices ranging from $264.92 to $265.53. 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.
12. This transaction was executed in multiple trades at prices ranging from $266.13 to $267.01. 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.
13. This transaction was executed in multiple trades at prices ranging from $267.39 to $268.33. 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.
14. This transaction was executed in multiple trades at prices ranging from $268.47 to $269.17. 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.
15. This transaction was executed in multiple trades at prices ranging from $269.80 to $270.41. 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.
16. This transaction was executed in multiple trades at prices ranging from $270.88 to $271.85. 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.
17. This transaction was executed in multiple trades at prices ranging from $272.59 to $273.58. 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.
18. This transaction was executed in multiple trades at prices ranging from $276.28 to $276.29. 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.
/s/ Jason E. Dymbort, attorney-in-fact05/27/2026
** 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)

FAQ

What insider transaction did First Solar (FSLR) report for its CEO?

First Solar reported that CEO Mark R. Widmar sold shares of the company’s Common Stock. The Form 4 shows a series of open-market sale transactions executed over two trading days, all under a pre-arranged Rule 10b5-1 trading plan.

How many First Solar (FSLR) shares did the CEO sell in this Form 4?

The CEO sold a total of 7,172 shares of First Solar Common Stock. These shares were disposed of across 17 separate open-market transactions, according to the transaction summary included in the Form 4 insider trading report.

On what dates did the First Solar (FSLR) CEO sell his shares?

The reported sales occurred on May 22, 2026 and May 26, 2026. All 17 transactions took place over these two trading days, as detailed in the non-derivative transaction table of the Form 4 filing.

At what prices did the First Solar (FSLR) CEO’s share sales occur?

The sales were executed at weighted-average prices that correspond to trade ranges between about $250 and $276.29 per share. Each line item lists a weighted-average price and a footnote describing the specific intra-day price range.

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

Yes. A footnote states the transactions were effected under a Rule 10b5-1 trading plan adopted by the CEO on November 6, 2025. Such plans are pre-arranged programs that schedule trades in advance to promote orderly, automatic selling.

Did the First Solar (FSLR) CEO exercise options or only sell shares in this filing?

This Form 4 shows only open-market sales of Common Stock. The derivative summary lists no option or warrant exercises, tax withholding entries, gifts, or restructurings, indicating the reported activity is limited to stock sales.