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Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Latest filing published 31 Jul 2025 for Cyanotech CORP.
Insider track record
Disclosed buys
0
Disclosed sells
0
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
No signal scores available.
Matthew Keith Custer: trading record in brief
Matthew Keith Custer, listed as chief executive, appears in our data through filings on Cyanotech Corp shares, published by SEC (Form 4). We count 21 filings; the first trade dates from 6 April 2020 and the latest from 29 July 2025.
No open-market purchase or sale appears among the filings, only grants, plan transactions and other operations. Compensation-driven entries like these are tracked, but they say little about how insiders judge the share price.
The record was last updated on 31 July 2025 with an option exercise in Cyanotech Corp. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. US insiders must file a Form 4 within two business days of a trade. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
Companies and markets linked to Matthew Keith Custer
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations10 total
2,075 shares0Common StockSEC:0001437749-25-024127:0
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
254 shares0Common StockSEC:0001437749-21-017025:0
10 of 10 declarations
