The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Custer Matthew Keith since 2020.
This trader's CIK number is 1789455.
At the time of last reporting, Custer Matthew Keith was the President and CEO of Cyanotech Corp. (stock ticker symbol CYAN).
Also see all insider trading activities at Cyanotech Corp.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | CYAN | 0 | $0 | 0 | $0 | 2,108 | $0 |
| 2024 | CYAN | 0 | $0 | 0 | $0 | 2,107 | $0 |
| 2023 | CYAN | 0 | $0 | 0 | $0 | 2,637 | $0 |
| 2022 | CYAN | 0 | $0 | 0 | $0 | 562 | $0 |
| 2021 | CYAN | 0 | $0 | 0 | $0 | 817 | $0 |
| 2020 | CYAN | 0 | $0 | 0 | $0 | 294 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-07-29 | CYAN | Option Ex | 2,075 | .00 | 0 |
| 2025-04-07 | CYAN | Option Ex | 33 | .00 | 0 |
| 2024-07-29 | CYAN | Option Ex | 2,074 | .00 | 0 |
| 2024-04-08 | CYAN | Option Ex | 33 | .00 | 0 |
| 2023-07-31 | CYAN | Option Ex | 2,603 | .00 | 0 |
| 2023-04-06 | CYAN | Option Ex | 34 | .00 | 0 |
| 2022-08-01 | CYAN | Option Ex | 529 | .00 | 0 |
| 2022-04-06 | CYAN | Option Ex | 33 | .00 | 0 |
| 2021-07-30 | CYAN | Option Ex | 530 | .00 | 0 |
| 2021-07-13 | CYAN | Option Ex | 254 | .00 | 0 |
| 2021-04-06 | CYAN | Option Ex | 33 | .00 | 0 |
| 2020-07-13 | CYAN | Option Ex | 254 | .00 | 0 |
| 2020-04-06 | CYAN | Option Ex | 40 | .00 | 0 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Custer Matthew Keith (President and CEO of Cyanotech Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.