Exhibit 32.1
Certification of CEO and CFO
Pursuant to 18 U.S.C. Section 1350,
As Adopted Pursuant to Section 906
of the Sarbanes-Oxley Act of 2002
In connection with the Annual Report of Cyanotech Corporation (the “Company”) on Form 10-K for the period ended March 31, 2025 (the “Report”) as filed with the Securities and Exchange Commission on the date hereof, each of the undersigned certifies that:
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1) |
The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act (15 U.S.C. 78m or 78o (d)); and |
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2) |
The information contained in the Report fairly presents, in all material aspects, the financial condition and results of operations of the Company. |
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Date: June 20, 2025 |
/s/ Matthew K. Custer |
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Matthew K. Custer |
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President and Chief Executive Officer |
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Date: June 20, 2025 |
/s/ Jennifer C. Rogerson |
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Jennifer C. Rogerson |
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Chief Financial Officer; Vice President—Finance & Administration, and Treasurer |
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(Principal Financial Officer) |