secwatch.observer — SEC 8-K summary
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Issuer:     Builders FirstSource, Inc. (BLDR)
CIK:        0001316835
Form:       8-K
Filed at:   2026-06-05T20:05:16+00:00
Accession:  0001193125-26-259521
Event type: leadership
Sentiment:  neutral
Materiality: 0.40
Item codes: 5.02
LLM model:  deepseek-v4-flash:cloud@v2

Builders FirstSource director Mark Alexander resigns for health reasons
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- Mark A. Alexander resigned from the Board of Directors on June 3, 2026.
- Resignation due to health reasons; no disagreement with company operations.
- Effective immediately; no replacement announced.
- Company thanked Mr. Alexander for his counsel and contributions.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1316835/000119312526259521/0001193125-26-259521-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1316835/000119312526259521/bldr-20260603.htm
  HTML page:      https://secwatch.observer/filing/0001193125-26-259521

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer