Builders FirstSource, Inc. 8-K

What Happened

• Builders FirstSource, Inc. (BLDR) filed an 8-K on June 5, 2026 reporting that Mark A. Alexander notified the Board of his immediate resignation from the Board of Directors effective June 3, 2026. The filing states his resignation was due to health reasons and was not the result of any disagreement with the Company.

Key Details

• Filing type: Form 8-K (Item 5.02: Departure of Directors or Certain Officers).
• Resignation effective date: June 3, 2026.
• Director: Mark A. Alexander.
• Company statement: Resignation due to health reasons; not due to any disagreement with the Company.
• 8-K signed by Alena Brenner, Executive VP, Chief Legal Officer and Corporate Secretary, dated June 5, 2026.

Why It Matters

• This 8-K notifies investors of a change in the company’s board composition, a matter of corporate governance and oversight. Investors should note the resignation and monitor the company for any subsequent filings identifying a replacement or changes to board committees.