OGE Energy Corporation.

OGE·NYSE·$48.40Share Price as of 11/2·$10BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/28/26 10-QQuarterly Report07/29/26 10-QQ1 ended 03/31/2604/29/26 10-KFY 202502/18/26 10-QQ3 ended 09/30/2510/29/25

Disclosures

8-KCurrent report10/28/26 8-KCurrent report10/28/26 8-KCurrent report10/08/26 8-KCurrent report08/03/26 8-KCurrent report07/29/26

Prospectuses and Registrations

424B5Prospectus supplement10/28/26 S-3ASRAutomatic shelf registration02/23/26 424B5Prospectus supplement11/21/25 424B5Prospectus supplement11/20/25 424B2Prospectus for primary offering05/07/24

Proxies

DEFA14AAdditional proxy materials05/07/26 DEFA14AAdditional proxy materials04/15/26 DEF 14ADefinitive proxy04/01/26 DEFA14AAdditional proxy materials04/01/26 DEFA14AAdditional proxy materials05/05/25

Ownership

Form 4Insider transaction08/31/26 144Proposed sale of securities08/27/26 Form 3Initial insider ownership08/10/26 Form 4Insider transaction07/02/26 Form 4Insider transaction05/22/26

Other

11-KEmployee stock purchase plan report06/17/26 ARSAnnual report to shareholders04/01/26 11-KEmployee stock purchase plan report06/23/25 ARSAnnual report to shareholders04/01/25 11-KEmployee stock purchase plan report06/24/24