Cero Therapeutics Holdings, Inc. SEC filings CEROW

Cero Therapeutics Holdings, Inc. has 445 filings in SEC EDGAR's recent list, going back to Jul 8, 2021. Its latest annual report, Form 10-K, was filed on Apr 15, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 7, 2026 (material agreement). The company's fiscal year ends on December 31.

Cero Therapeutics Holdings, Inc. SEC filings
Form Description Filed Period
8-K Current report
Material agreement
Oct 7, 2026 Oct 6, 2026
8-K Current report
Material agreement, Agreement ended, New debt, Unregistered share sale
Aug 31, 2026 Aug 27, 2026
8-K Current report
Material agreement, New debt, Unregistered share sale
Jul 17, 2026 Jul 14, 2026
8-K Current report
Material agreement, New debt, Unregistered share sale
Jun 26, 2026 Jun 23, 2026
8-K Current report
Material agreement, New debt, Unregistered share sale
May 29, 2026 May 28, 2026
8-K Current report
Material agreement, New debt, Unregistered share sale
May 1, 2026 Apr 27, 2026
8-K Current report
Material agreement, New debt, Unregistered share sale
Apr 14, 2026 Apr 8, 2026
8-K Current report
Material agreement, New debt, Unregistered share sale
Mar 11, 2026 Mar 6, 2026
8-K Current report
Material agreement, New debt, Unregistered share sale, Auditor change, Officer or director change
Feb 13, 2026 Feb 9, 2026
8-K Current report
Other events
Feb 4, 2026 Feb 4, 2026
8-K Current report
Listing notice
Feb 3, 2026 Jan 29, 2026
8-K Current report
Regulation FD disclosure, Other events
Jan 7, 2026 Jan 7, 2026
8-K Current report
Officer or director change, Shareholder vote results
Dec 19, 2025 Dec 19, 2025
8-K Current report
Material agreement
Dec 2, 2025 Nov 26, 2025
8-K Current report
Listing notice, Other events
Oct 30, 2025 Oct 29, 2025
8-K Current report
Material agreement, Bylaw or fiscal year change, Other events
Oct 16, 2025 Oct 14, 2025
8-K Current report
Material agreement, Unregistered share sale
Oct 14, 2025 Oct 14, 2025
8-K Current report
Regulation FD disclosure
Sep 22, 2025 Sep 22, 2025
8-K Current report
Other events
Sep 5, 2025 Sep 5, 2025
8-K Current report
Listing notice
Sep 4, 2025 Aug 28, 2025
8-K Current report
Unregistered share sale
Jul 18, 2025 Jul 18, 2025
8-K Current report
Material agreement
Jul 14, 2025 Jul 11, 2025
8-K Current report
Other events
Jul 8, 2025 Jul 7, 2025
8-K Current report
Material agreement, Unregistered share sale
Jun 30, 2025 Jun 25, 2025
8-K Current report
Other events
Jun 17, 2025 Jun 17, 2025
8-K Current report
Listing notice
Jun 13, 2025 Jun 11, 2025
8-K Current report
Bylaw or fiscal year change, Other events
Jun 11, 2025 Jun 11, 2025
8-K Current report
Unregistered share sale, Other events
Jun 6, 2025 Jun 5, 2025
8-K Current report
Officer or director change
Jun 2, 2025 May 30, 2025
8-K Current report
Officer or director change, Shareholder vote results
May 29, 2025 May 29, 2025
8-K Current report
Other events
May 8, 2025 May 7, 2025
8-K Current report
Bylaw or fiscal year change, Regulation FD disclosure
Apr 25, 2025 Apr 22, 2025
8-K Current report
Material agreement, Unregistered share sale, Other events
Apr 22, 2025 Apr 21, 2025
8-K Current report
Other events
Feb 12, 2025 Feb 12, 2025
8-K Current report
Material agreement, Other events
Feb 6, 2025 Feb 5, 2025
8-K Current report
Other events
Jan 21, 2025 Jan 17, 2025
8-K Current report
Unregistered share sale
Jan 10, 2025 Jan 6, 2025
8-K Current report
Other events
Jan 7, 2025 Jan 7, 2025
8-K Current report
Bylaw or fiscal year change, Other events
Jan 6, 2025 Jan 6, 2025
8-K Current report
Unregistered share sale, Other events
Dec 31, 2024 Dec 23, 2024
8-K Current report
Officer or director change, Other events
Dec 6, 2024 Dec 2, 2024
8-K Current report
Other events
Nov 18, 2024 Nov 15, 2024
8-K Current report
Material agreement, Shareholder vote results
Nov 12, 2024 Nov 8, 2024
8-K Current report
Listing notice
Nov 1, 2024 Oct 30, 2024
8-K Current report
Listing notice
Oct 25, 2024 Oct 24, 2024
8-K Current report
Other events
Oct 21, 2024 Oct 21, 2024
8-K Current report
Results of operations, Officer or director change, Regulation FD disclosure
Oct 11, 2024 Oct 9, 2024
8-K Current report
Officer or director change, Other events
Oct 2, 2024 Sep 26, 2024
8-K Current report
Bylaw or fiscal year change, Other events
Oct 2, 2024 Sep 25, 2024
8-K Current report
Other events
Sep 26, 2024 Sep 25, 2024
8-K Current report
Material agreement, Unregistered share sale, Officer or director change, Other events
Sep 25, 2024 Sep 22, 2024
8-K Current report
Officer or director change
Sep 23, 2024 Sep 17, 2024
8-K Current report
Other events
Sep 18, 2024 Sep 18, 2024
8-K Current report
Other events
Sep 10, 2024 Sep 10, 2024
8-K Current report
Other events
Jul 26, 2024 Jul 26, 2024
8-K Current report
Listing notice
Jul 25, 2024 Jul 19, 2024
8-K Current report
Listing notice
May 3, 2024 May 2, 2024
8-K Current report
Shareholder vote results
May 1, 2024 Apr 30, 2024
8-K/A Amended current report
Other events
Apr 2, 2024 Feb 13, 2024
8-K Current report
Material agreement, Unregistered share sale, Other events
Feb 28, 2024 Feb 23, 2024
8-K/A Amended current report
Material agreement, Acquisition or sale of assets, Unregistered share sale, Change in control, Officer or director change, Bylaw or fiscal year change
Feb 27, 2024 Feb 13, 2024
8-K Current report
Material agreement, Acquisition or sale of assets, Change in control, Officer or director change, Bylaw or fiscal year change
Feb 15, 2024 Feb 13, 2024
8-K Current report
Material agreement
Feb 14, 2024 Feb 13, 2024
8-K Current report
Shareholder vote results, Other events
Feb 12, 2024 Feb 8, 2024
8-K Current report
Material agreement, Unregistered share sale, Other events
Feb 6, 2024 Feb 5, 2024
8-K Current report
Material agreement, Bylaw or fiscal year change, Shareholder vote results, Other events
Jan 5, 2024 Jan 3, 2024
8-K Current report
Material agreement, New debt
Dec 11, 2023 Dec 8, 2023
8-K Current report
Listing notice
Sep 8, 2023 Sep 7, 2023
8-K Current report
Regulation FD disclosure
Aug 14, 2023 Aug 11, 2023
8-K/A Amended current report
Other events
Jul 18, 2023 Jul 7, 2023
8-K Current report
Material agreement, Bylaw or fiscal year change, Shareholder vote results, Other events
Jul 10, 2023 Jul 7, 2023
8-K Current report
Unregistered share sale, Other events
Jul 3, 2023 Jul 3, 2023
8-K Current report
Material agreement, Regulation FD disclosure
Jun 5, 2023 Jun 4, 2023
8-K Current report
Listing notice
Apr 7, 2023 Apr 3, 2023
8-K Current report
Other events
Jan 27, 2023 Jan 27, 2023
8-K Current report
Material agreement, New debt, Bylaw or fiscal year change, Shareholder vote results
Dec 20, 2022 Dec 16, 2022
8-K Current report
Agreement ended, Regulation FD disclosure
Dec 7, 2022 Dec 6, 2022
8-K Current report
Material agreement, Regulation FD disclosure
Oct 31, 2022 Oct 30, 2022
8-K Current report
Other events
Oct 15, 2021 Oct 8, 2021
8-K Current report
Material agreement, Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change, Other events
Oct 12, 2021 Oct 5, 2021

Showing 80 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

Company profile

Industry
Biological Products, (No Diagnostic Substances) (SIC 2836)
Listed as
CERO (OTC), CEROW (OTC)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
South San Francisco, CA
SEC filer status
, Emerging growth company
SEC CIK
1870404
Former names
CERO THERAPEUTICS HOLDINGS, INC. (until Oct 7, 2026); PHOENIX BIOTECH ACQUISITION CORP. (until Feb 14, 2024)

Other Biological Products, (No Diagnostic Substances) companies

Source: SEC EDGAR filings. This is company-reported data, not investment advice.