Builders FirstSource, Inc. 8-K

What Happened

• Builders FirstSource (BLDR) announced a planned leadership transition on May 18, 2026: Mike Hiller was appointed Chief Operating Officer‑Designate effective May 18, 2026 and will succeed Steve Herron as Chief Operating Officer effective December 31, 2026. Steve Herron, COO since March 2023, is retiring after more than 15 years with the company.
• At the same time the Board appointed Coley O’Brien as Chief Human Resources Officer, effective May 18, 2026. The company issued a news release on May 18, 2026 announcing these changes (filed as Exhibit 99.1).

Key Details

• Mike Hiller: age 52; Chief Talent Officer since Nov 2024; previously President – Central Division (Jan 2021–Nov 2024); over 20 years in building products; MBA and graduate certificate in finance from Westminster University.
• Coley O’Brien: joins from The Wendy’s Company, where he was Chief People Officer since March 2018; CHRO effective May 18, 2026.
• Annual Meeting participation: 97,557,384 shares represented (88.20% of voting power, record date March 16, 2026).
• Director votes (selected totals):
  • Paul S. Levy: 83,059,970 For / 5,605,020 Against (64,482 Abstain)
  • Cheryl Ainoa: 88,396,041 For / 268,996 Against (64,435 Abstain)
  • Craig Steinke: 76,271,469 For / 12,364,061 Against (93,942 Abstain)
• Other shareholder votes and outcomes:
  • Advisory “say‑on‑pay”: 86,126,013 For / 2,333,519 Against (269,940 Abstain)
  • Ratification of PwC as auditor: 93,169,372 For / 4,333,634 Against (54,378 Abstain)
  • Approval of 2026 Equity Incentive Plan: 86,712,552 For / 1,885,973 Against (130,947 Abstain) — approved
  • Approval of Employee Stock Purchase Plan (ESPP): 88,304,284 For / 369,902 Against (55,286 Abstain) — approved
  • Broker non‑votes: 8,827,912 reported for several proposals.

Why It Matters

• The company has announced a planned, board‑approved COO succession with a clear timetable (designate now, full transition Dec 31, 2026), which supports operational continuity and gives investors visibility into management succession.
• The simultaneous appointment of a new CHRO signals changes in senior HR leadership that could affect talent, compensation and culture initiatives.
• Shareholder votes show strong support for the board slate, the auditor (PwC), the equity incentive plan and the ESPP; the say‑on‑pay vote passed with a large majority. These approvals matter for executive compensation, equity dilution and governance oversight.
• The 8‑K contains no new financial results; investors should look to future filings and company updates for any operational or financial impacts from the leadership changes.