Pinnacle West Capital Corporation

PNW·NYSE·$102.83Share Price as of 11/2·$12BMarket Cap as of 11/2

Financials

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

Disclosures

8-KCurrent report09/30/26 8-KCurrent report09/04/26 8-KCurrent report08/13/26 8-KCurrent report08/07/26 8-KCurrent report08/04/26

Prospectuses and Registrations

424B5Prospectus supplement08/04/26 424B5Prospectus supplement06/05/26 424B5Prospectus supplement06/02/26 424B5Prospectus supplement06/01/26 FWPFree writing prospectus06/01/26

Proxies

DEF 14ADefinitive proxy04/03/26 DEFA14AAdditional proxy materials04/03/26 DEF 14ADefinitive proxy04/08/25 DEFA14AAdditional proxy materials04/08/25 PRE 14APreliminary proxy03/06/25

Ownership

SC 13GBeneficial ownership08/12/26 Form 4Insider transaction08/11/26 Form 4Insider transaction08/11/26 144Proposed sale of securities08/07/26 144Proposed sale of securities08/07/26

Other

ARSAnnual report to shareholders02/25/26 D/AD/A12/15/25 11-KEmployee stock purchase plan report06/11/25 ARSAnnual report to shareholders02/25/25 D/AD/A01/08/25