---
schema_version: "secwatch.filing_event.v1"
accession: "0001274494-25-000004"
form_type: "8-K"
ticker: "FSLR"
cik: "0001274494"
company_name: "FIRST SOLAR, INC."
filed_at: "2025-01-10T23:59:59+00:00"
generated_at: "2026-05-28T04:32:40.682512+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# First Solar appoints Nathan Theurer as CAO; Jeffers moves to Investor Relations

## Summary
- Nathan Theurer, age 44, appointed VP Global Controller and Chief Accounting Officer, effective Jan 6, 2025.
- Byron Jeffers transitions from CAO to VP Treasurer and Head of Investor Relations, effective same date.
- Theurer receives $280,000 annual base salary, 40% target bonus, and equity compensation eligibility.
- Theurer joined First Solar in 2014, served as Corporate Controller since Nov 2019; prior roles at Amkor Technology and Ernst & Young.

## SEC filing metadata
- accession: 0001274494-25-000004
- form_type: 8-K
- ticker: FSLR
- cik: 0001274494
- company_name: FIRST SOLAR, INC.
- filed_at: 2025-01-10T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1274494/000127449425000004/0001274494-25-000004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1274494/000127449425000004/fslr-20250103.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001274494-25-000004
- JSON: https://secwatch.observer/filing/0001274494-25-000004.json
- Plain text: https://secwatch.observer/filing/0001274494-25-000004.txt

## Key facts
- Executive change
  Nathan Theurer was appointed as Vice President, Global Controller and Chief Accounting Officer at FIRST SOLAR, INC..
  - Action: appointed
  - Role: Vice President, Global Controller and Chief Accounting Officer
  source text: On January 3, 2025, First Solar, Inc. (“First Solar” or the “Company”) appointed Nathan Theurer, age 44, to the position of Vice President, Global Controller and Chief Accounting Officer, effective January 6, 2025
  evidence_url: https://www.sec.gov/Archives/edgar/data/1274494/000127449425000004/0001274494-25-000004-index.htm
- Executive change
  Byron Jeffers was appointed as Vice President, Treasurer and Head of Investor Relations at FIRST SOLAR, INC..
  - Action: appointed
  - Role: Vice President, Treasurer and Head of Investor Relations
  source text: Also effective January 6, 2025, Byron Jeffers, former Vice President, Global Controller and Chief Accounting Officer, has been appointed Vice President, Treasurer and Head of Investor Relations at First Solar.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1274494/000127449425000004/0001274494-25-000004-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.