Matthew Keith Custer's most recent trade in Cyanotech Corp. was a trade of 2,075 Restricted Stock Units done . Disclosure was reported to the exchange on July 29, 2025.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 29 Jul 2025 | 2,075 | 64,137 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 29 Jul 2025 | 2,075 | 6,754 (0%) | 0% | 0 | Common Stock | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 16 Jun 2025 | 150,000 | 150,000 | - | - | Cyanotech common stock options | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 16 Jun 2025 | 64,103 | 4,679 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 07 Apr 2025 | 33 | 2,109 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 07 Apr 2025 | 33 | 4,679 (0%) | 0% | 0 | Common Stock | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 29 Jul 2024 | 2,074 | 5,425 (0%) | 0% | 0 | Common Stock | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 29 Jul 2024 | 2,074 | 2,142 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 0.56 per share. | 29 Jul 2024 | 779 | 4,646 (0%) | 0% | 0.6 | 436 | Common Stock |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 08 Apr 2024 | 33 | 3,364 (0%) | 0% | 0 | Common Stock | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 08 Apr 2024 | 33 | 4,216 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 0.38 per share. | 08 Apr 2024 | 13 | 3,351 (0%) | 0% | 0.4 | 5 | Common Stock |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 31 Jul 2023 | 2,603 | 4,249 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 31 Jul 2023 | 2,603 | 4,309 (0%) | 0% | 0 | Common Stock | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 0.84 per share. | 31 Jul 2023 | 978 | 3,331 (0%) | 0% | 0.8 | 822 | Common Stock |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 06 Apr 2023 | 100 | 6,886 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 06 Apr 2023 | 34 | 1,719 (0%) | 0% | 0 | Common Stock | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 06 Apr 2023 | 34 | 6,852 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 0.92 per share. | 06 Apr 2023 | 13 | 1,706 (0%) | 0% | 0.9 | 12 | Common Stock |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 29 Jul 2022 | 6,223 | 7,315 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 29 Jul 2022 | 529 | 6,786 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 29 Jul 2022 | 529 | 1,884 (0%) | 0% | 0 | Common Stock | |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Payment of exercise price or tax liability using portion of securities received from the company at price $ 3.15 per share. | 29 Jul 2022 | 199 | 1,685 (0%) | 0% | 3.2 | 627 | Common Stock |
| Cyanotech Corp. | Matthew Keith Custer | Director, President and CEO | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 21 Jun 2022 | 50,000 | 50,000 | - | - | Cyanotech common stock options | |
| Cyanotech Corp. | Matthew Keith Custer | President | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 06 Apr 2022 | 33 | 1,368 (0%) | 0% | 0 | Common Stock | |
| Cyanotech Corp. | Matthew Keith Custer | President | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 06 Apr 2022 | 33 | 1,092 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | President | Payment of exercise price or tax liability using portion of securities received from the company at price $ 3.00 per share. | 06 Apr 2022 | 13 | 1,355 (0%) | 0% | 3 | 39 | Common Stock |
| Cyanotech Corp. | Matthew Keith Custer | President | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 30 Jul 2021 | 530 | 1,125 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | President | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 30 Jul 2021 | 530 | 1,335 (0%) | 0% | 0 | Common Stock | |
| Cyanotech Corp. | Matthew Keith Custer | President | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 13 Jul 2021 | 254 | 1,655 | - | - | Restricted Stock Units | |
| Cyanotech Corp. | Matthew Keith Custer | President | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 13 Jul 2021 | 254 | 805 (0%) | 0% | 0 | Common Stock | |
| Cyanotech Corp. | Matthew Keith Custer | President | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 20 May 2021 | 50,000 | 50,000 | - | - | Cyanotech common stock options | |
| Cyanotech Corp. | Matthew Keith Custer | Vice President, Gen Mgr | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 06 Apr 2021 | 33 | 551 (0%) | 0% | 0 | Common Stock | |
| Cyanotech Corp. | Matthew Keith Custer | Vice President, Gen Mgr | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 06 Apr 2021 | 33 | 1,909 | - | - | Restricted Stock Units |