# EDGAR Filing Document

**Accession Number:** 0001645454
**File Stem:** 0001274494-26-000063
**Filing Date:** 2026-3
**Character Count:** 9340
**Document Hash:** 3532afc2ef4cca018a237393b02e666c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001274494-26-000063.hdr.sgml**: 20260310

**ACCESSION NUMBER**: 0001274494-26-000063

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260306

**FILED AS OF DATE**: 20260310

**DATE AS OF CHANGE**: 20260310

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Dymbort Jason E.
- **CENTRAL INDEX KEY:** 0001645454

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-33156
- **FILM NUMBER:** 26741306

**MAIL ADDRESS:**
- **STREET 1:** 77 RIO ROBLES
- **CITY:** SAN JOSE
- **STATE:** CA
- **ZIP:** 95134
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FIRST SOLAR, INC.
- **CENTRAL INDEX KEY:** 0001274494
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 204623678
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 4300 E CAMELBACK ROAD
- **STREET 2:** SUITE 220
- **CITY:** PHOENIX
- **STATE:** AZ
- **ZIP:** 85018
- **BUSINESS PHONE:** (602) 414-9300

**MAIL ADDRESS:**
- **STREET 1:** 4300 E CAMELBACK ROAD
- **STREET 2:** SUITE 220
- **CITY:** PHOENIX
- **STATE:** AZ
- **ZIP:** 85018

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIRST SOLAR HOLDINGS LLC
- **DATE OF NAME CHANGE:** 20031229

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Dymbort Jason E.<br><sub>(Last) (First) (Middle)</sub><br>C/O FIRST SOLAR, INC.<br>4300 E CAMELBACK ROAD, SUITE 220<br><sub>(Street)</sub><br>PHOENIX, AZ 85018<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-03-06 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_General Counsel and Secretary_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>FIRST SOLAR, INC. [ FSLR ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2026-03-06 |  | M |  | 760<sup>(1)</sup> | A | $0 | 17385 | D |  |
| Common Stock | 2026-03-06 |  | M |  | 471<sup>(2)</sup> | A | $0 | 17856 | D |  |
| Common Stock | 2026-03-06 |  | M |  | 758<sup>(3)</sup> | A | $0 | 18614 | D |  |
| Common Stock | 2026-03-06 |  | M |  | 1067<sup>(4)</sup> | A | $0 | 19681 | D |  |
| Common Stock | 2026-03-09 |  | S |  | 325<sup>(5)</sup> | D | $190.36 | 19356 | D |  |
| Common Stock | 2026-03-09 |  | S |  | 202<sup>(5)</sup> | D | $190.36 | 19154 | D |  |
| Common Stock | 2026-03-09 |  | S |  | 323<sup>(5)</sup> | D | $190.36 | 18831 | D |  |
| Common Stock | 2026-03-09 |  | S |  | 455<sup>(5)</sup> | D | $190.36 | 18376 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Restricted Stock Units | <sup>(6)</sup> | 2026-03-06 |  | M |  |  | 760 | <sup>(7)</sup> | <sup>(7)</sup> | Common Stock | 760 | $0 | 0 | D |  |
| Restricted Stock Units | <sup>(6)</sup> | 2026-03-06 |  | M |  |  | 471 | <sup>(8)</sup> | <sup>(8)</sup> | Common Stock | 471 | $0 | 942 | D |  |
| Restricted Stock Units | <sup>(6)</sup> | 2026-03-06 |  | M |  |  | 758 | <sup>(9)</sup> | <sup>(9)</sup> | Common Stock | 758 | $0 | 1515 | D |  |
| Restricted Stock Units | <sup>(6)</sup> | 2026-03-06 |  | M |  |  | 1067 | <sup>(10)</sup> | <sup>(10)</sup> | Common Stock | 1067 | $0 | 3204 | D |  |
| Restricted Stock Units | <sup>(6)</sup> | 2026-03-06 |  | A |  | 2960 |  | <sup>(11)</sup> | <sup>(11)</sup> | Common Stock | 2960 | $0 | 2960 | D |  |

---

### Footnotes:

(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.

**Signature:** /s/ Jason E. Dymbort  
**Date:** 2026-03-10

### Remarks:

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.**