Cero Therapeutics Holdings, Inc.

CERO·OTC·$0.02Share Price as of 11/2·$25,312Market Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/14/26 10-QQ1 ended 03/31/2605/15/26 10-K/AFY 202504/30/26 10-KFY 202504/15/26 10-QQ3 ended 09/30/2511/19/25

Disclosures

8-KCurrent report10/07/26 8-KCurrent report08/31/26 8-KCurrent report07/17/26 8-KCurrent report06/26/26 8-KCurrent report05/29/26

Prospectuses and Registrations

424B3Prospectus08/14/26 424B3Prospectus07/17/26 424B3Prospectus06/26/26 424B3Prospectus05/29/26 424B3Prospectus05/15/26

Proxies

DEFA14AAdditional proxy materials12/02/25 DEF 14ADefinitive proxy11/28/25 PRE 14APreliminary proxy11/17/25 DEF 14ADefinitive proxy05/07/25 PRER14APreliminary proxy (revised)05/02/25

Ownership

SC 13G/ABeneficial ownership (amended)08/14/26 Form 3Initial insider ownership04/21/26 Form 4Insider transaction04/21/26 SC 13GBeneficial ownership03/12/26 Form 4Insider transaction01/09/26

Other

25-NSERemoval from listing07/13/26 NT 10-KLate filing notification (10-K)04/01/26 EFFECTRequest for effectiveness12/11/25 CORRESPCorrespondence with the SEC12/09/25 NT 10-QLate filing notification (10-Q)11/17/25