InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
0
T+90 hit rate
67%
T+90 mean return
+0.1%
Across 9 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the complete record of transactions filed by Custer Matthew Keith, Chairman & CEO. Officer active across 1 company, notably Cyanotech CORP. Cumulatively, 11 filings have been recorded. Activity tracked since 13 July 2021. The latest transaction was filed on 7 April 2025 (Levée d'options). Regulator: SEC (Form 4). The full history is free.
Declarations11 total
33 shares0Common StockSEC:0001437749-25-011515:0
2,074 shares0Common StockSEC:0001437749-24-024095:0
33 shares0Common StockSEC:0001437749-24-011676:0
2,603 shares0Common StockSEC:0001437749-23-021372:0
34 shares0Common StockSEC:0001437749-23-009813:0
529 shares0Common StockSEC:0001437749-22-018395:0
33 shares0Common StockSEC:0001437749-22-008583:0
530 shares0Common StockSEC:0001437749-21-018406:0
530 shares0Common StockSEC:0001437749-21-018406
254 shares0Common StockSEC:0001437749-21-017025
254 shares0Common StockSEC:0001437749-21-017025:0
11 of 11 declarations
About Custer Matthew Keith
Matthew Keith Custer is the Chairman & CEO of CYANOTECH CORP. In this role, he is responsible for the strategic direction of the company and the management of its daily operations. Custer brings extensive expertise in the industry and is committed to promoting innovation and sustainability. Under his leadership, CYANOTECH CORP. aims to strengthen its market position and develop environmentally friendly solutions.
