Ameren Corporation

AEE·NYSE·$111.03Share Price as of 11/2·$31BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/03/26 10-QQ1 ended 03/31/2605/08/26 10-KFY 202502/18/26 10-QQ3 ended 09/30/2511/06/25 10-QQ2 ended 06/30/2508/04/25

Disclosures

8-KCurrent report09/28/26 8-KOther Events09/18/26 8-KOther Events08/24/26 8-KCurrent report08/04/26 8-KResults of Operations; Other Events07/30/26

Prospectuses and Registrations

424B2Prospectus for primary offering09/09/26 424B3Prospectus09/08/26 FWPFree writing prospectus09/08/26 424B5Prospectus supplement08/04/26 S-3ASRAutomatic shelf registration05/15/26

Proxies

DEF 14ADefinitive proxy03/31/26 DEFA14AAdditional proxy materials03/31/26 PX14A6GLetter to shareholders04/30/25 DEFA14AAdditional proxy materials04/28/25 DEFA14AAdditional proxy materials03/27/25

Ownership

Form 4Insider transaction09/14/26 Form 4Insider transaction08/20/26 Form 4Insider transaction08/17/26 Form 4Insider transaction08/05/26 144Proposed sale of securities08/03/26

Other

305B2305B209/08/26 11-KEmployee stock purchase plan report06/26/26 ARSAnnual report to shareholders03/31/26 11-KEmployee stock purchase plan report06/25/25 ARSAnnual report to shareholders03/25/25