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AI brief of an SEC Form 8-K · Steel Dynamics (STLD)

Steel Dynamics names CFO Theresa Wagler as next CEO effective January 1, 2027

Neutral Impact 4 of 5 leadership Written later

Steel Dynamics said CEO Mark Millett will retire as chief executive on January 1, 2027, and become Executive Chairman. CFO Theresa Wagler will succeed him as President and CEO on that date, and Richard Poinsatte will become CFO. The filing also lists operating and technology role changes effective September 1, 2026, and the board expanded from seven to eight members.

Key points

  • Theresa Wagler, EVP and CFO since 2007, becomes President and CEO effective January 1, 2027, and joins the board immediately
  • Mark Millett retires as CEO effective January 1, 2027, and becomes Executive Chairman
  • Richard Poinsatte becomes EVP and CFO effective January 1, 2027
  • Barry Schneider becomes EVP and Chief Technology Officer effective September 1, 2026

The filing

CompanySteel Dynamics (STLD)
Form8-K, current report
Filed with the SECAug 4, 2026, 9:57 AM ET
Accession number0001104659-26-090129

Items reported: 5.02 Director / Officer Change7.01 Regulation FD Disclosure

Read the filing on SEC.gov ↗

Written by AI (Anthropic Claude, claude-haiku-5-5) on Nov 8, 2026, 1:10 AM ET, from the text of the filing and its press-release exhibits only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on August 04, 2026.

Briefs are written by AI from the filing text (each brief's own page names the model) and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the model's reading of the filing for shareholders, not a price forecast. Not investment advice.