Cyanotech Corp SEC filings CYAN

Cyanotech Corp has 870 filings in SEC EDGAR's recent list, going back to Sep 8, 1995. Its latest annual report, Form ARS, was filed on Jul 10, 2025 for the period ended Mar 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 10, 2025, covering the quarter ended Sep 30, 2025. The most recent current report (Form 8-K) was filed on Sep 2, 2025 (material agreement, new debt). The company's fiscal year ends on March 31.

Form Description Filed Period
15-12G Deregistration Feb 13, 2026 —
10-Q Quarterly report Nov 10, 2025 Sep 30, 2025
8-K Current report
Material agreement, New debt
 Sep 2, 2025 Aug 29, 2025
8-K Current report
Officer or director change, Shareholder vote results, Other events
 Aug 22, 2025 Aug 21, 2025
10-Q Quarterly report Aug 6, 2025 Jun 30, 2025
ARS Annual report to shareholders Jul 10, 2025 Mar 31, 2025
DEF 14A Proxy statement Jul 10, 2025 Aug 21, 2025
10-K Annual report Jun 20, 2025 Mar 31, 2025
8-K Current report
Material agreement, New debt, Officer or director change
 May 8, 2025 May 2, 2025
10-Q Quarterly report Feb 11, 2025 Dec 31, 2024
8-K Current report
Auditor change
 Dec 16, 2024 Dec 10, 2024
10-Q Quarterly report Nov 12, 2024 Sep 30, 2024
8-K Current report
Officer or director change, Shareholder vote results, Other events
 Aug 23, 2024 Aug 22, 2024
8-K Current report
Material agreement, New debt
 Aug 13, 2024 Aug 9, 2024
10-Q Quarterly report Aug 7, 2024 Jun 30, 2024
ARS Annual report to shareholders Jul 11, 2024 Mar 31, 2024
DEF 14A Proxy statement Jul 11, 2024 Aug 22, 2024
PRE 14A Preliminary proxy statement Jun 28, 2024 Aug 22, 2024
10-K Annual report Jun 26, 2024 Mar 31, 2024
25-NSE Delisting notice Apr 9, 2024 —
8-K Current report
Listing notice
 Feb 14, 2024 Feb 8, 2024
10-Q Quarterly report Feb 8, 2024 Dec 31, 2023
8-K Current report
Unregistered share sale
 Dec 19, 2023 Dec 15, 2023
10-Q Quarterly report Nov 8, 2023 Sep 30, 2023
8-K Current report
Shareholder vote results, Other events
 Aug 29, 2023 Aug 24, 2023
8-K Current report
Material agreement, New debt
 Aug 17, 2023 Aug 14, 2023
8-K Current report
Listing notice
 Aug 11, 2023 Aug 10, 2023
10-Q Quarterly report Aug 11, 2023 Jun 30, 2023
ARS Annual report to shareholders Jul 14, 2023 Mar 31, 2023
DEF 14A Proxy statement Jul 14, 2023 Aug 24, 2023
8-K Current report
Other events
 Jul 5, 2023 Jun 30, 2023
10-K Annual report Jun 27, 2023 Mar 31, 2023
8-K Current report
Other events
 Jun 16, 2023 Jun 15, 2023
8-K Current report
Listing notice
 May 8, 2023 May 2, 2023
10-Q Quarterly report Feb 9, 2023 Dec 31, 2022
8-K Current report
Material agreement, New debt
 Dec 19, 2022 Dec 14, 2022
10-Q Quarterly report Nov 9, 2022 Sep 30, 2022
8-K Current report
Shareholder vote results
 Aug 30, 2022 Aug 25, 2022
10-Q Quarterly report Aug 10, 2022 Jun 30, 2022
DEF 14A Proxy statement Jul 18, 2022 Aug 25, 2022
10-K Annual report Jun 22, 2022 Mar 31, 2022
8-K Current report
Material agreement, Officer or director change
 Jun 22, 2022 Jun 16, 2022
10-Q Quarterly report Feb 10, 2022 Dec 31, 2021
10-Q Quarterly report Nov 10, 2021 Sep 30, 2021
8-K Current report
Officer or director change
 Nov 10, 2021 Nov 8, 2021
8-K Current report
Shareholder vote results
 Aug 31, 2021 Aug 26, 2021
10-Q Quarterly report Aug 11, 2021 Jun 30, 2021
DEF 14A Proxy statement Jul 15, 2021 Aug 26, 2021
10-K Annual report Jun 22, 2021 Mar 31, 2021
8-K Current report
Officer or director change
 May 25, 2021 May 20, 2021
8-K Current report
Material agreement, New debt
 Apr 16, 2021 Apr 12, 2021
10-Q Quarterly report Feb 11, 2021 Dec 31, 2020
10-Q Quarterly report Nov 12, 2020 Sep 30, 2020
8-K Current report
Officer or director change
 Oct 1, 2020 Sep 25, 2020
8-K Current report
Shareholder vote results
 Aug 31, 2020 Aug 27, 2020
10-Q Quarterly report Aug 11, 2020 Jun 30, 2020
DEF 14A Proxy statement Jul 15, 2020 Aug 27, 2020
10-K Annual report Jun 23, 2020 Mar 31, 2020
8-K Current report
Material agreement, New debt
 May 11, 2020 May 5, 2020
10-Q Quarterly report Feb 11, 2020 Dec 31, 2019
10-Q Quarterly report Nov 12, 2019 Sep 30, 2019
8-K Current report
Shareholder vote results
 Aug 27, 2019 Aug 22, 2019
10-Q Quarterly report Aug 13, 2019 Jun 30, 2019
DEF 14A Proxy statement Jul 10, 2019 Aug 22, 2019
10-K Annual report Jul 1, 2019 Mar 31, 2019
8-K Current report
Material agreement, Agreement ended, Officer or director change
 Jun 7, 2019 Jun 3, 2019
8-K Current report
Officer or director change
 Apr 26, 2019 Apr 26, 2019
8-K Current report
Material agreement, New debt
 Apr 12, 2019 Apr 12, 2019
10-Q Quarterly report Feb 13, 2019 Dec 31, 2018
8-K Current report
Officer or director change, Other events
 Jan 9, 2019 Jan 3, 2019
8-K Current report
Material agreement
 Dec 7, 2018 Nov 30, 2018
10-Q Quarterly report Nov 13, 2018 Sep 30, 2018
8-K Current report
Officer or director change
 Nov 6, 2018 Nov 6, 2018
8-K Current report
Other events
 Sep 7, 2018 Aug 31, 2018
8-K Current report
Shareholder vote results
 Aug 29, 2018 Aug 27, 2018
10-Q Quarterly report Aug 13, 2018 Jun 30, 2018
DEF 14A Proxy statement Jul 9, 2018 Aug 27, 2018
10-K/A Amended annual report Jun 21, 2018 Mar 31, 2018
10-K Annual report Jun 15, 2018 Mar 31, 2018
8-K Current report
Other events
 Apr 13, 2018 Apr 13, 2018
10-Q Quarterly report Feb 6, 2018 Dec 31, 2017
8-K Current report
Material agreement, Officer or director change, Other events
 Jan 25, 2018 Jan 24, 2018
10-Q Quarterly report Nov 6, 2017 Sep 30, 2017
8-K Current report
Shareholder vote results
 Aug 25, 2017 Aug 24, 2017
10-Q Quarterly report Aug 10, 2017 Jun 30, 2017
8-K Current report
Material agreement, Officer or director change, Other events
 Jul 17, 2017 Jul 14, 2017
DEF 14A Proxy statement Jul 7, 2017 Aug 24, 2017
10-K Annual report Jun 22, 2017 Mar 31, 2017
8-K Current report
Material agreement
 Apr 11, 2017 Apr 6, 2017
8-K Current report
Material agreement
 Mar 15, 2017 Mar 13, 2017
8-K Current report
Other events
 Feb 16, 2017 Feb 13, 2017
10-Q Quarterly report Feb 7, 2017 Dec 31, 2016
8-K Current report
Shareholder vote results
 Dec 19, 2016 Dec 15, 2016
S-8 Employee stock plan registration Nov 10, 2016 —
10-Q Quarterly report Nov 10, 2016 Sep 30, 2016
DEF 14A Proxy statement Nov 4, 2016 Dec 15, 2016
8-K Current report
Officer or director change
 Oct 25, 2016 Oct 19, 2016
8-K Current report
Other events
 Sep 9, 2016 Sep 2, 2016
8-K Current report
Material agreement, New debt
 Sep 1, 2016 Aug 30, 2016
8-K Current report
Shareholder vote results
 Aug 29, 2016 Aug 25, 2016
10-Q Quarterly report Aug 15, 2016 Jun 30, 2016
DEF 14A Proxy statement Jul 15, 2016 Aug 25, 2016
10-K Annual report Jun 23, 2016 Mar 31, 2016
8-K Current report
Other events
 Jun 8, 2016 May 6, 2016
8-K Current report
Officer or director change, Other events
 May 23, 2016 May 17, 2016
D Filing May 10, 2016 —
8-K Current report
Other events
 Apr 12, 2016 Apr 12, 2016
8-K Current report
Material agreement, Agreement ended, Officer or director change, Other events
 Apr 4, 2016 Mar 31, 2016
10-Q Quarterly report Feb 11, 2016 Dec 31, 2015
10-Q Quarterly report Nov 12, 2015 Sep 30, 2015
8-K Current report
Shareholder vote results
 Oct 19, 2015 Oct 15, 2015
ARS Annual report to shareholders Sep 4, 2015 Mar 31, 2015
DEF 14A Proxy statement Sep 2, 2015 Oct 15, 2015
10-K/A Amended annual report Aug 27, 2015 Mar 31, 2015
8-K Current report
Material agreement, New debt
 Aug 26, 2015 Aug 20, 2015
10-Q Quarterly report Aug 7, 2015 Jun 30, 2015
10-K Annual report Jul 15, 2015 Mar 31, 2015
NT 10-K Form nt 10-k Jun 29, 2015 Mar 31, 2015
10-Q Quarterly report Feb 12, 2015 Dec 31, 2014
8-K Current report
Officer or director change
 Jan 28, 2015 Jan 27, 2015
8-K Current report
Other events
 Dec 19, 2014 Dec 17, 2014
10-Q/A Amended quarterly report Nov 13, 2014 Sep 30, 2014
10-Q Quarterly report Nov 12, 2014 Sep 30, 2014
S-8 Employee stock plan registration Sep 17, 2014 —
8-K Current report
Shareholder vote results
 Sep 2, 2014 Aug 28, 2014
8-K Current report
Officer or director change
 Aug 18, 2014 Aug 6, 2014
10-Q Quarterly report Aug 14, 2014 Jun 30, 2014
ARS Annual report to shareholders Jul 24, 2014 Mar 31, 2014
DEF 14A Proxy statement Jul 18, 2014 Aug 28, 2014
10-K Annual report Jun 27, 2014 Mar 31, 2014
8-K Current report
Other events
 Apr 9, 2014 Mar 3, 2014
10-Q/A Amended quarterly report Feb 13, 2014 Dec 31, 2013
10-Q Quarterly report Feb 6, 2014 Dec 31, 2013
10-Q Quarterly report Nov 7, 2013 Sep 30, 2013
8-K Current report
Shareholder vote results
 Sep 4, 2013 Aug 29, 2013
8-K Current report
Other events
 Aug 26, 2013 Jun 30, 2013
10-Q Quarterly report Aug 12, 2013 Jun 30, 2013
ARS Annual report to shareholders Jul 19, 2013 Mar 31, 2013
DEF 14A Proxy statement Jul 19, 2013 Aug 29, 2013
8-K Current report
Other events
 Jun 26, 2013 Mar 31, 2013
10-K Annual report Jun 24, 2013 Mar 31, 2013
CT ORDER Filing Apr 26, 2013 —
10-Q Quarterly report Feb 7, 2013 Dec 31, 2012
10-Q Quarterly report Nov 9, 2012 Sep 30, 2012
8-K Current report
Material agreement, New debt
 Sep 13, 2012 Sep 7, 2012
8-K Current report
Shareholder vote results
 Aug 31, 2012 Aug 27, 2012
10-Q Quarterly report Aug 10, 2012 Jun 30, 2012
DEF 14A Proxy statement Jul 18, 2012 Aug 27, 2012
10-K Annual report Jun 21, 2012 Mar 31, 2012
8-K Current report
Material agreement
 Mar 14, 2012 Mar 9, 2012
UPLOAD Letter from the SEC Mar 6, 2012 —
S-8 Employee stock plan registration Feb 21, 2012 —
10-Q/A Amended quarterly report Feb 21, 2012 Sep 30, 2011
10-Q/A Amended quarterly report Feb 21, 2012 Jun 30, 2011
10-K/A Amended annual report Feb 21, 2012 Mar 31, 2011
DEFR14A Filing Feb 21, 2012 —
CORRESP Letter to the SEC Feb 21, 2012 —
CORRESP Letter to the SEC Feb 16, 2012 —
10-Q Quarterly report Feb 9, 2012 Dec 31, 2011
UPLOAD Letter from the SEC Feb 3, 2012 —
10-Q Quarterly report Nov 14, 2011 Sep 30, 2011
8-K Current report
Officer or director change
 Oct 18, 2011 Oct 12, 2011
8-K Current report
Shareholder vote results
 Sep 2, 2011 Aug 29, 2011
8-K Current report
Officer or director change
 Aug 17, 2011 Aug 17, 2011
10-Q Quarterly report Aug 11, 2011 Jun 30, 2011
DEFA14A Additional proxy material Jul 20, 2011 —
DEF 14A Proxy statement Jul 20, 2011 Aug 29, 2011
ARS Annual report to shareholders Jul 19, 2011 Mar 31, 2011
10-K Annual report Jun 23, 2011 Mar 31, 2011
8-K Current report
Officer or director change
 Jun 8, 2011 Jun 8, 2011
10-Q Quarterly report Feb 11, 2011 Dec 31, 2010
8-K Current report
Officer or director change
 Jan 28, 2011 Jan 26, 2011
10-Q Quarterly report Nov 10, 2010 Sep 30, 2010
8-K Current report
Officer or director change, Bylaw or fiscal year change
 Nov 9, 2010 Nov 5, 2010
8-K Current report
Listing notice, Officer or director change
 Nov 1, 2010 Oct 26, 2010
8-K Current report
Shareholder vote results
 Sep 3, 2010 Sep 1, 2010
10-Q Quarterly report Aug 12, 2010 Jun 30, 2010
DEFA14A Additional proxy material Jul 23, 2010 —
DEF 14A Proxy statement Jul 23, 2010 Sep 1, 2010
ARS Annual report to shareholders Jul 22, 2010 Mar 31, 2010
10-K Annual report Jun 24, 2010 Mar 31, 2010
8-K Current report
Officer or director change
 Apr 5, 2010 Mar 31, 2010
8-K/A Amended current report
Listing notice, Officer or director change
 Mar 12, 2010 Feb 27, 2010
8-K Current report
Officer or director change
 Mar 1, 2010 Feb 27, 2010
10-Q Quarterly report Feb 11, 2010 Dec 31, 2009
8-K Current report
Bylaw or fiscal year change
 Jan 13, 2010 Jan 7, 2010
10-Q Quarterly report Nov 12, 2009 Sep 30, 2009
10-Q Quarterly report Aug 13, 2009 Jun 30, 2009
ARS Annual report to shareholders Jul 30, 2009 Mar 31, 2009
DEFA14A Additional proxy material Jul 29, 2009 —
DEF 14A Proxy statement Jul 29, 2009 Sep 9, 2009
10-K/A Amended annual report Jul 10, 2009 Mar 31, 2009
10-K Annual report Jun 25, 2009 Mar 31, 2009
8-K Current report
Bylaw or fiscal year change
 Apr 21, 2009 Apr 20, 2009
10-Q Quarterly report Feb 12, 2009 Dec 31, 2008
10-Q Quarterly report Nov 13, 2008 Sep 30, 2008
8-K Current report
Officer or director change
 Nov 5, 2008 Oct 31, 2008
S-8 Employee stock plan registration Oct 10, 2008 —
10-K/A Amended annual report Oct 2, 2008 Mar 31, 2008
ARS Annual report to shareholders Aug 18, 2008 Mar 31, 2008

Showing 200 filings, the most recent 200. 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.

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Company profile

Industry
Medicinal Chemicals & Botanical Products (SIC 2833)
Listed as
CYAN (OTC)
Fiscal year ends
March 31
Incorporated in
NV
Headquarters
Kailua Kona, HI
SEC filer status
Non-accelerated filer, Smaller reporting company
SEC CIK
768408

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