Cardinal Infrastructure Group Inc.

CDNL·NASDAQ·$52.54Share Price as of 11/2·$803MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/12/26 10-QQ1 ended 03/31/2605/13/26 10-KFY 202503/23/26

Disclosures

8-KCurrent report10/19/26 8-KCurrent report10/01/26 8-KCurrent report09/11/26 8-KCurrent report08/11/26 8-KCurrent report06/05/26

Prospectuses and Registrations

424B4Prospectus06/25/26 S-1MEFProspectus / registration06/24/26 S-1Registration statement (IPO)06/22/26 424B4Prospectus12/10/25 S-8Registration of securities for employees12/10/25

Proxies

DEF 14ADefinitive proxy04/24/26 DEFA14AAdditional proxy materials04/24/26

Ownership

SC 13GBeneficial ownership10/30/26 SC 13G/ABeneficial ownership (amended)10/28/26 SC 13GBeneficial ownership10/19/26 Form 4Insider transaction08/18/26 Form 4Insider transaction08/17/26

Other

EFFECTRequest for effectiveness06/24/26 DRSDRS06/10/26 ARSAnnual report to shareholders04/24/26 8-A12B8-A12B12/10/25 CERTCEO/CFO certification12/10/25