AMEREN CORP 8-K

What Happened
Ameren Corporation (and its regulated subsidiaries Ameren Missouri and Ameren Illinois) filed an 8-K on May 18, 2026 reporting the outcomes of their May 14, 2026 annual shareholder meetings. Each company’s full board of directors was elected. Ameren shareholders also approved the advisory resolution on executive compensation and ratified PricewaterhouseCoopers LLP as the independent registered public accounting firm for fiscal 2026.

Key Details

• Ameren Corporation director elections: all incumbent directors were elected. "For" votes per nominee ranged roughly from 203,929,254 to 216,191,429; broker non-votes were 24,519,860 for all director votes. The largest number of "against" votes was for Steven H. Lipstein (14,096,981 against).
• Advisory vote on executive compensation (Ameren): Approved — 208,210,735 votes for; 9,383,298 against; 951,507 abstentions; 24,519,860 broker non-votes.
• Auditor ratification (Ameren): PricewaterhouseCoopers LLP ratified — 232,732,466 votes for; 9,840,141 against; 492,793 abstentions.
• Subsidiary boards: Ameren Missouri directors Michael L. Moehn, Ajay K. Arora, David M. Feinberg, Ryan J. Martin and Leonard P. Singh each received 102,123,834 votes (no withholds/abstentions/broker non‑votes). Ameren Illinois directors Patrick E. Smith Sr., David M. Feinberg, Michael L. Moehn, Theresa A. Shaw and Leonard P. Singh each received 25,452,373 votes (no withholds/abstentions/broker non‑votes).

Why It Matters
These results confirm board continuity and governance stability across Ameren and its regulated subsidiaries, with shareholders broadly supporting management’s slate of directors and the company’s executive pay program. The advisory "say-on-pay" approval is non-binding but signals investor sentiment on compensation; the auditor ratification ensures continuity of the external audit relationship for fiscal 2026. Broker non-votes on Ameren’s director and say-on-pay items indicate a portion of shares held in street name did not cast votes on those matters, which is common in contested or routine director votes.

Note: This Form 8-K is a combined filing; each registrant (Ameren Corporation, Union Electric Company/Ameren Missouri, and Ameren Illinois Company) filed information on its own behalf.