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  4. [Form 4] FIRST SOLAR, INC. Insider Trading Activity

FIRST SOLAR, INC. reported $5.2B in revenue and $1.5B in net income for fiscal 2025. See the full FSLR financial statements: income statement, balance sheet, cash flow and ratios, each column linked to its SEC filing.

First Solar officer covers taxes on RSU vesting

FIRST SOLAR, INC. executive Caroline Stockdale reported routine equity compensation activity.

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

FIRST SOLAR, INC. executive Caroline Stockdale reported routine equity compensation activity. On March 6, 2026, restricted stock units vested and were exercised into 2,436 shares of common stock at a conversion price of $0.00 per share, and she received a new grant of 1,903 restricted stock units under the company’s 2020 Omnibus Incentive Compensation Plan. On March 9, 2026, a total of 1,041 shares of common stock were sold by the issuer to satisfy tax withholding obligations related to the vesting, and Stockdale held 33,595 common shares directly following these transactions, indicating a small, tax-driven reduction relative to her overall position.

Positive

  • None.

Negative

  • None.
Insider Stockdale Caroline
Role Chief People and Comm. Officer
Sold 1,041 shs ($198K)
Approx. gross sale proceeds $198K
Approx. exercise cost $0.00
Type Security Shares Price Value
Sale Common Stock 417 $190.36 $79K
Sale Common Stock 102 $190.36 $19K
Sale Common Stock 293 $190.36 $56K
Sale Common Stock 229 $190.36 $44K
Exercise Restricted Stock Units 977 $0.00 $0.00
Exercise Restricted Stock Units 236 $0.00 $0.00
Exercise Restricted Stock Units 537 $0.00 $0.00
Exercise Restricted Stock Units 686 $0.00 $0.00
Grant/Award Restricted Stock Units 1,903 $0.00 $0.00
Exercise Common Stock 977 $0.00 $0.00
Exercise Common Stock 236 $0.00 $0.00
Exercise Common Stock 537 $0.00 $0.00
Exercise Common Stock 686 $0.00 $0.00
Holdings After Transaction: Restricted Stock Units — 5,507 shares (Direct); Common Stock — 33,595 shares (Direct)
Footnotes (11)
  1. F1. Represents shares of common stock issued upon vesting of 20% of the restricted stock units granted on March 6, 2021.
  2. F2. Represents shares of common stock issued upon vesting of 20% of the restricted stock units granted on March 6, 2023.
  3. F3. Represents shares of common stock issued upon vesting of 25% of the restricted stock units granted on March 6, 2024.
  4. F4. Represents shares of common stock issued upon vesting of 25% of the restricted stock units granted on March 6, 2025.
  5. F5. Represents shares of common stock sold by the Issuer to satisfy certain tax withholding obligations with the vesting of the restricted stock units.
  6. F6. Each restricted stock unit represents the right to receive, upon vesting, one share of the Issuer's common stock in accordance with the Issuer's 2020 Omnibus Incentive Compensation Plan.
  7. F7. The restricted stock units were granted on March 6, 2021 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2021 vest annually at a rate of 20% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
  8. F8. The restricted stock units were granted on March 6, 2023 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2023 vest annually at a rate of 20% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
  9. F9. The restricted stock units were granted on March 6, 2024 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2024 vest annually at a rate of 25% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
  10. F10. The restricted stock units were granted on March 6, 2025 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2025 vest annually at a rate of 25% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
  11. F11. The restricted stock units were granted on March 6, 2026 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2026 vest annually at a rate of 25% on each anniversary of the grant date, commencing on the first anniversary of the grant date.

FAQ

What insider transactions did Caroline Stockdale report at FIRST SOLAR (FSLR)?
Caroline Stockdale reported RSU vesting, associated share issuance, a new RSU grant, and tax-related share sales. RSUs converted into 2,436 common shares, she received 1,903 new RSUs, and 1,041 shares were sold to cover withholding taxes, leaving 33,595 shares held.

How many FIRST SOLAR (FSLR) shares did Caroline Stockdale sell and why?
A total of 1,041 FIRST SOLAR common shares were sold in several trades at $190.36 per share. Footnotes explain these shares were sold by the issuer to satisfy tax withholding obligations tied to restricted stock unit vesting, not discretionary open-market sales.

How many FIRST SOLAR (FSLR) shares does Caroline Stockdale hold after these transactions?
After the reported transactions, Caroline Stockdale directly holds 33,595 shares of FIRST SOLAR common stock. This reflects RSU conversions adding 2,436 shares and tax-related sales of 1,041 shares, resulting in a relatively small net change in her overall equity position.

What restricted stock unit (RSU) activity did FIRST SOLAR (FSLR) disclose for Caroline Stockdale?
The filing shows multiple RSU tranches vesting into 2,436 common shares at a $0.00 conversion price. It also records a new grant of 1,903 RSUs, which vest annually under FIRST SOLAR’s 2020 Omnibus Incentive Compensation Plan according to specified anniversary schedules.

What were the prices involved in Caroline Stockdale’s FIRST SOLAR (FSLR) share transactions?
RSU conversions into common stock were executed at a conversion price of $0.00 per share, consistent with equity awards. The 1,041 shares sold to cover tax withholding obligations were sold at $190.36 per share in separate but same-day transactions on March 9, 2026.

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Form 4 Insider Transactions: What Each Field Means →
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SEC Form 4
FORM 4 UNITED 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).
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*
Stockdale Caroline
(Last) (First) (Middle)
C/O FIRST SOLAR, INC.
4300 E CAMELBACK ROAD, SUITE 220
(Street)
PHOENIX AZ 85018
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
FIRST SOLAR, INC. [ FSLR ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Chief People and Comm. Officer
3. Date of Earliest Transaction (Month/Day/Year)
03/06/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
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)
Code V Amount (A) or (D) Price
Common Stock 03/06/2026 M 977(1) A $0 33,177 D
Common Stock 03/06/2026 M 236(2) A $0 33,413 D
Common Stock 03/06/2026 M 537(3) A $0 33,950 D
Common Stock 03/06/2026 M 686(4) A $0 34,636 D
Common Stock 03/09/2026 S 417(5) D $190.36 34,219 D
Common Stock 03/09/2026 S 102(5) D $190.36 34,117 D
Common Stock 03/09/2026 S 293(5) D $190.36 33,824 D
Common Stock 03/09/2026 S 229(5) D $190.36 33,595 D
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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Units (6) 03/06/2026 M 977 (7) (7) Common Stock 977 $0 0 D
Restricted Stock Units (6) 03/06/2026 M 236 (8) (8) Common Stock 236 $0 470 D
Restricted Stock Units (6) 03/06/2026 M 537 (9) (9) Common Stock 537 $0 1,074 D
Restricted Stock Units (6) 03/06/2026 M 686 (10) (10) Common Stock 686 $0 2,060 D
Restricted Stock Units (6) 03/06/2026 A 1,903 (11) (11) Common Stock 1,903 $0 1,903 D
Explanation of Responses:
1. Represents shares of common stock issued upon vesting of 20% of the restricted stock units granted on March 6, 2021.
2. Represents shares of common stock issued upon vesting of 20% of the restricted stock units granted on March 6, 2023.
3. Represents shares of common stock issued upon vesting of 25% of the restricted stock units granted on March 6, 2024.
4. Represents shares of common stock issued upon vesting of 25% of the restricted stock units granted on March 6, 2025.
5. Represents shares of common stock sold by the Issuer to satisfy certain tax withholding obligations with the vesting of the restricted stock units.
6. Each restricted stock unit represents the right to receive, upon vesting, one share of the Issuer's common stock in accordance with the Issuer's 2020 Omnibus Incentive Compensation Plan.
7. The restricted stock units were granted on March 6, 2021 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2021 vest annually at a rate of 20% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
8. The restricted stock units were granted on March 6, 2023 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2023 vest annually at a rate of 20% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
9. The restricted stock units were granted on March 6, 2024 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2024 vest annually at a rate of 25% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
10. The restricted stock units were granted on March 6, 2025 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2025 vest annually at a rate of 25% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
11. The restricted stock units were granted on March 6, 2026 as part of the Issuer's annual equity grant to executive officers. The restricted stock units granted on March 6, 2026 vest annually at a rate of 25% on each anniversary of the grant date, commencing on the first anniversary of the grant date.
/s/ Jason E. Dymbort, attorney-in-fact 03/10/2026
** Signature of Reporting Person Date
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.

Source: View Original Filing on SEC EDGAR