Gerald R. Cysewski

Companies

• CYANOTECH CORPBoard member Jul 17, 2006 to Apr 8, 2022¹
• CYANOTECH CORPChief executive officer Jul 17, 2006 to Apr 8, 2022¹
• CYANOTECH CORPExec.VP&Scientific Dir. Oct 17, 2008 to Apr 8, 2019²
• CYANOTECH CORPPresident Jul 17, 2006 to Jul 17, 2006¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• CCYANOTECH CORP CYAN146,947 shares³$102.9K at $0.70Jul 31, 2025

As of each latest filing. The line shows shares held over time.

Recent filings

• Jul 29, 2025Shares withheld for tax 592 shares at $0.41 of CYANOTECH CORP³
• Jul 29, 2025Exercised options 1,577 shares of CYANOTECH CORP³
• Apr 7, 2025Shares withheld for tax 13 shares at $0.31 of CYANOTECH CORP⁴
• Apr 7, 2025Exercised options 33 shares of CYANOTECH CORP⁴
• Feb 18, 2025Shares withheld for tax 1,464 shares at $0.40 of CYANOTECH CORP⁵
• Feb 18, 2025Exercised options 3,900 shares of CYANOTECH CORP⁵
• Jul 29, 2024Shares withheld for tax 592 shares at $0.56 of CYANOTECH CORP⁶
• Jul 29, 2024Exercised options 1,576 shares of CYANOTECH CORP⁶
• Apr 8, 2024Shares withheld for tax 13 shares at $0.40 of CYANOTECH CORP⁷
• Apr 8, 2024Exercised options 33 shares of CYANOTECH CORP⁷
• Feb 16, 2024Shares withheld for tax 1,465 shares at $0.44 of CYANOTECH CORP⁸
• Feb 16, 2024Exercised options 3,900 shares of CYANOTECH CORP⁸
• Jul 31, 2023Shares withheld for tax 843 shares at $0.84 of CYANOTECH CORP⁹
• Jul 31, 2023Exercised options 2,243 shares of CYANOTECH CORP⁹
• Apr 6, 2023Shares withheld for tax 13 shares at $0.94 of CYANOTECH CORP¹⁰
• Apr 6, 2023Exercised options 34 shares of CYANOTECH CORP¹⁰
• Aug 1, 2022Shares withheld for tax 251 shares at $3.15 of CYANOTECH CORP¹¹
• Aug 1, 2022Exercised options 666 shares of CYANOTECH CORP¹¹
• Apr 6, 2022Shares withheld for tax 13 shares at $3.03 of CYANOTECH CORP¹²
• Apr 6, 2022Exercised options 33 shares of CYANOTECH CORP¹²