Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2023-12-01 Purchase | 2023-12-04 3:35 pm | CYANOTECH CORP | CYAN | DAVIS MICHAEL A Director 10% Owner | 39,455 | $0.9 | $35,510 | 956,894 (Indirect Direct) | View |
2023-09-15 Purchase | 2023-09-18 11:48 am | CYANOTECH CORP | CYAN | DAVIS MICHAEL A Director 10% Owner | 3,245 | $0.845 | $2,742 | 904,618 (Indirect Direct) | View |
2023-09-13 Purchase | 2023-09-14 5:36 pm | CYANOTECH CORP | CYAN | DAVIS MICHAEL A Director 10% Owner | 5,498 | $0.83015 | $4,564 | 901,373 (Indirect Direct) | View |
2023-09-11 Purchase | 2023-09-12 9:14 pm | CYANOTECH CORP | CYAN | DAVIS MICHAEL A Director 10% Owner | 399 | $0.8177 | $326 | 895,875 (Indirect Direct) | View |
2023-09-07 Purchase | 2023-09-08 7:16 pm | CYANOTECH CORP | CYAN | DAVIS MICHAEL A Director 10% Owner | 20,453 | $0.75172 | $15,375 | 895,476 (Indirect Direct) | View |
2023-09-05 Purchase | 2023-09-07 3:54 pm | CYANOTECH CORP | CYAN | DAVIS MICHAEL A Director 10% Owner | 18,520 | $0.667 | $12,353 | 875,023 (Indirect Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
2023-10-13 Option Award | 2023-10-17 1:28 pm | N/A N/A | CYANOTECH CORP | CYAN | DAVIS MICHAEL A Director 10% Owner | 12,821 | $0 | 917,439 (Indirect) | View |
2023-09-12 Option Award | 2023-09-14 5:48 pm | N/A 2033-09-12 | CYANOTECH CORP | CYAN | Kakuk Collette Nicole Chief Strategic Comml Officer | 50,000 | $0 | 50,000 (Direct) | View |
2023-08-25 Option Award | 2023-08-28 3:23 pm | N/A N/A | CYANOTECH CORP | CYAN | McElwee Angela May Director | 40,506 | $0 | 53,567 (Direct) | View |
2023-08-25 Option Award | 2023-08-28 3:20 pm | N/A N/A | CYANOTECH CORP | CYAN | MULDER DAVID M Director | 40,506 | $0 | 113,962 (Direct) | View |
2023-08-25 Option Award | 2023-08-28 3:17 pm | N/A N/A | CYANOTECH CORP | CYAN | Vied David L Director | 40,506 | $0 | 135,632 (Direct) | View |
2023-08-24 Gift | 2023-08-28 3:10 pm | N/A N/A | CYANOTECH CORP | CYAN | DAVIS MICHAEL A Director 10% Owner | 424,621 | $0 | 856,503 (Indirect) | View |
2023-08-25 Option Award | 2023-08-28 3:10 pm | N/A N/A | CYANOTECH CORP | CYAN | DAVIS MICHAEL A Director 10% Owner | 37,975 | $0 | 856,503 (Indirect) | View |
2023-07-31 Tax Withholding | 2023-08-01 3:31 pm | N/A N/A | CYANOTECH CORP | CYAN | Nordin Amy Beth VP, HR, Secretary | 716 | $0.84 | 5,865 (Direct) | View |
2023-07-31 Exercise | 2023-08-01 3:31 pm | N/A N/A | CYANOTECH CORP | CYAN | Nordin Amy Beth VP, HR, Secretary | 1,904 | $0 | 5,865 (Direct) | View |
2023-07-31 Tax Withholding | 2023-08-01 3:26 pm | N/A N/A | CYANOTECH CORP | CYAN | Hartmann Charles Jason VP, Sales & Marketing | 670 | $0.84 | 4,510 (Direct) | View |
2023-07-31 Exercise | 2023-08-01 3:26 pm | N/A N/A | CYANOTECH CORP | CYAN | Hartmann Charles Jason VP, Sales & Marketing | 1,680 | $0 | 4,510 (Direct) | View |
2023-07-31 Tax Withholding | 2023-08-01 3:21 pm | N/A N/A | CYANOTECH CORP | CYAN | Johansen Jennifer M. VP, Quality, Regulatory & Govt | 706 | $0.84 | 6,842 (Direct) | View |
2023-07-31 Exercise | 2023-08-01 3:21 pm | N/A N/A | CYANOTECH CORP | CYAN | Johansen Jennifer M. VP, Quality, Regulatory & Govt | 1,877 | $0 | 6,842 (Direct) | View |
2023-07-31 Tax Withholding | 2023-08-01 3:17 pm | N/A N/A | CYANOTECH CORP | CYAN | Jensen Glenn VP, Operations | 830 | $0.84 | 24,319 (Direct) | View |
2023-07-31 Exercise | 2023-08-01 3:17 pm | N/A N/A | CYANOTECH CORP | CYAN | Jensen Glenn VP, Operations | 2,206 | $0 | 24,319 (Direct) | View |
2023-07-31 Tax Withholding | 2023-08-01 3:12 pm | N/A N/A | CYANOTECH CORP | CYAN | Ladin Felicia I CFO, VP Fin & Admin, Treasurer | 656 | $0.84 | 4,726 (Direct) | View |
2023-07-31 Exercise | 2023-08-01 3:12 pm | N/A N/A | CYANOTECH CORP | CYAN | Ladin Felicia I CFO, VP Fin & Admin, Treasurer | 1,747 | $0 | 4,726 (Direct) | View |
2023-07-31 Tax Withholding | 2023-08-01 3:09 pm | N/A N/A | CYANOTECH CORP | CYAN | Custer Matthew Keith President and CEO | 978 | $0.84 | 7,580 (Direct) | View |
2023-07-31 Exercise | 2023-08-01 3:09 pm | N/A N/A | CYANOTECH CORP | CYAN | Custer Matthew Keith President and CEO | 2,603 | $0 | 7,580 (Direct) | View |
2023-07-31 Tax Withholding | 2023-08-01 3:04 pm | N/A N/A | CYANOTECH CORP | CYAN | Cysewski Gerald R Chief Scientific Officer | 843 | $0.84 | 143,320 (Direct) | View |
2023-07-31 Exercise | 2023-08-01 3:04 pm | N/A N/A | CYANOTECH CORP | CYAN | Cysewski Gerald R Chief Scientific Officer | 2,243 | $0 | 143,320 (Direct) | View |
2023-04-06 Tax Withholding | 2023-04-10 3:06 pm | N/A N/A | CYANOTECH CORP | CYAN | Nordin Amy Beth VP, HR, Secretary | 13 | $0.94 | 11,623 (Direct) | View |
2023-04-06 Option Award | 2023-04-10 3:06 pm | N/A N/A | CYANOTECH CORP | CYAN | Nordin Amy Beth VP, HR, Secretary | 100 | $0 | 11,623 (Direct) | View |
2023-04-06 Exercise | 2023-04-10 3:06 pm | N/A N/A | CYANOTECH CORP | CYAN | Nordin Amy Beth VP, HR, Secretary | 34 | $0 | 11,623 (Direct) | View |
2023-04-06 Tax Withholding | 2023-04-10 3:04 pm | N/A N/A | CYANOTECH CORP | CYAN | Hartmann Charles Jason VP, Sales & Marketing | 14 | $0.94 | 10,355 (Direct) | View |
2023-04-06 Option Award | 2023-04-10 3:04 pm | N/A N/A | CYANOTECH CORP | CYAN | Hartmann Charles Jason VP, Sales & Marketing | 100 | $0 | 10,355 (Direct) | View |
2023-04-06 Exercise | 2023-04-10 3:04 pm | N/A N/A | CYANOTECH CORP | CYAN | Hartmann Charles Jason VP, Sales & Marketing | 34 | $0 | 10,355 (Direct) | View |
2023-04-06 Tax Withholding | 2023-04-10 3:02 pm | N/A N/A | CYANOTECH CORP | CYAN | Johansen Jennifer M. VP, Quality, Regulatory & Govt | 13 | $0.94 | 12,318 (Direct) | View |
2023-04-06 Option Award | 2023-04-10 3:02 pm | N/A N/A | CYANOTECH CORP | CYAN | Johansen Jennifer M. VP, Quality, Regulatory & Govt | 100 | $0 | 12,318 (Direct) | View |
2023-04-06 Exercise | 2023-04-10 3:02 pm | N/A N/A | CYANOTECH CORP | CYAN | Johansen Jennifer M. VP, Quality, Regulatory & Govt | 34 | $0 | 12,318 (Direct) | View |
2023-04-06 Tax Withholding | 2023-04-10 2:59 pm | N/A N/A | CYANOTECH CORP | CYAN | Jensen Glenn VP, Operations | 13 | $0.94 | 30,772 (Direct) | View |
2023-04-06 Option Award | 2023-04-10 2:59 pm | N/A N/A | CYANOTECH CORP | CYAN | Jensen Glenn VP, Operations | 100 | $0 | 30,772 (Direct) | View |
2023-04-06 Exercise | 2023-04-10 2:59 pm | N/A N/A | CYANOTECH CORP | CYAN | Jensen Glenn VP, Operations | 34 | $0 | 30,772 (Direct) | View |
2023-04-06 Tax Withholding | 2023-04-10 2:56 pm | N/A N/A | CYANOTECH CORP | CYAN | Ladin Felicia I CFO, VP Fin & Admin, Treasurer | 13 | $0.94 | 10,757 (Direct) | View |
2023-04-06 Option Award | 2023-04-10 2:56 pm | N/A N/A | CYANOTECH CORP | CYAN | Ladin Felicia I CFO, VP Fin & Admin, Treasurer | 100 | $0 | 10,757 (Direct) | View |
2023-04-06 Exercise | 2023-04-10 2:56 pm | N/A N/A | CYANOTECH CORP | CYAN | Ladin Felicia I CFO, VP Fin & Admin, Treasurer | 34 | $0 | 10,757 (Direct) | View |
2023-04-06 Tax Withholding | 2023-04-10 2:54 pm | N/A N/A | CYANOTECH CORP | CYAN | Custer Matthew Keith President and CEO | 13 | $0.94 | 15,444 (Direct) | View |
2023-04-06 Option Award | 2023-04-10 2:54 pm | N/A N/A | CYANOTECH CORP | CYAN | Custer Matthew Keith President and CEO | 100 | $0 | 15,444 (Direct) | View |
2023-04-06 Exercise | 2023-04-10 2:54 pm | N/A N/A | CYANOTECH CORP | CYAN | Custer Matthew Keith President and CEO | 34 | $0 | 15,444 (Direct) | View |
2023-04-06 Tax Withholding | 2023-04-10 2:52 pm | N/A N/A | CYANOTECH CORP | CYAN | Cysewski Gerald R Chief Scientific Officer | 13 | $0.94 | 149,693 (Direct) | View |
2023-04-06 Option Award | 2023-04-10 2:52 pm | N/A N/A | CYANOTECH CORP | CYAN | Cysewski Gerald R Chief Scientific Officer | 100 | $0 | 149,693 (Direct) | View |
2023-04-06 Exercise | 2023-04-10 2:52 pm | N/A N/A | CYANOTECH CORP | CYAN | Cysewski Gerald R Chief Scientific Officer | 34 | $0 | 149,693 (Direct) | View |
2023-04-03 Option Award | 2023-04-04 3:32 pm | N/A N/A | CYANOTECH CORP | CYAN | DAVIS MICHAEL A Director 10% Owner | 8,551 | $0 | 1,243,149 (Indirect) | View |
2023-04-03 Option Award | 2023-04-04 3:29 pm | N/A N/A | CYANOTECH CORP | CYAN | Vied David L Director | 9,121 | $0 | 95,126 (Direct) | View |
2022-08-30 Option Award | 2022-09-01 4:38 pm | N/A N/A | CYANOTECH CORP | CYAN | Menzel Walter Bennett Director | 13,061 | $0 | 39,455 (Direct) | View |
2022-08-30 Option Award | 2022-09-01 4:27 pm | N/A N/A | CYANOTECH CORP | CYAN | McElwee Angela May Director | 13,061 | $0 | 13,061 (Direct) | View |
2022-08-30 Option Award | 2022-09-01 4:24 pm | N/A N/A | CYANOTECH CORP | CYAN | Vied David L Director | 13,061 | $0 | 86,005 (Direct) | View |
2022-08-30 Option Award | 2022-09-01 4:22 pm | N/A N/A | CYANOTECH CORP | CYAN | MULDER DAVID M Director | 13,061 | $0 | 73,456 (Direct) | View |
2022-08-30 Option Award | 2022-09-01 4:19 pm | N/A N/A | CYANOTECH CORP | CYAN | DAVIS MICHAEL A Director 10% Owner | 12,245 | $0 | 1,234,598 (Indirect) | View |
2022-07-29 Option Award | 2022-08-02 4:06 pm | N/A N/A | CYANOTECH CORP | CYAN | Hartmann Charles Jason VP, Sales & Marketing | 5,041 | $0 | 5,075 (Direct) | View |
2022-08-01 Tax Withholding | 2022-08-02 4:03 pm | N/A N/A | CYANOTECH CORP | CYAN | Nordin Amy Beth VP, HR, Secretary | 151 | $3.15 | 11,838 (Direct) | View |
2022-07-29 Option Award | 2022-08-02 4:03 pm | N/A N/A | CYANOTECH CORP | CYAN | Nordin Amy Beth VP, HR, Secretary | 4,505 | $0 | 11,838 (Direct) | View |
2022-08-01 Exercise | 2022-08-02 4:03 pm | N/A N/A | CYANOTECH CORP | CYAN | Nordin Amy Beth VP, HR, Secretary | 402 | $0 | 11,838 (Direct) | View |
2022-08-01 Tax Withholding | 2022-08-02 4:00 pm | N/A N/A | CYANOTECH CORP | CYAN | Johansen Jennifer M. VP, Quality, Regulatory & Govt | 187 | $3.15 | 12,629 (Direct) | View |
2022-07-29 Option Award | 2022-08-02 4:00 pm | N/A N/A | CYANOTECH CORP | CYAN | Johansen Jennifer M. VP, Quality, Regulatory & Govt | 4,138 | $0 | 12,629 (Direct) | View |
2022-08-01 Exercise | 2022-08-02 4:00 pm | N/A N/A | CYANOTECH CORP | CYAN | Johansen Jennifer M. VP, Quality, Regulatory & Govt | 498 | $0 | 12,629 (Direct) | View |
2022-07-29 Option Award | 2022-08-02 3:58 pm | N/A N/A | CYANOTECH CORP | CYAN | Ladin Felicia I CFO, VP Fin & Admin, Treasurer | 5,241 | $0 | 5,275 (Direct) | View |
2022-08-01 Tax Withholding | 2022-08-02 3:56 pm | N/A N/A | CYANOTECH CORP | CYAN | Jensen Glenn VP, Operations | 213 | $3.15 | 31,150 (Direct) | View |
2022-07-29 Option Award | 2022-08-02 3:56 pm | N/A N/A | CYANOTECH CORP | CYAN | Jensen Glenn VP, Operations | 4,924 | $0 | 31,150 (Direct) | View |
2022-08-01 Exercise | 2022-08-02 3:56 pm | N/A N/A | CYANOTECH CORP | CYAN | Jensen Glenn VP, Operations | 565 | $0 | 31,150 (Direct) | View |
2022-08-01 Tax Withholding | 2022-08-02 3:53 pm | N/A N/A | CYANOTECH CORP | CYAN | Cysewski Gerald R Chief Scientific Officer | 251 | $3.15 | 150,172 (Direct) | View |
2022-07-29 Option Award | 2022-08-02 3:53 pm | N/A N/A | CYANOTECH CORP | CYAN | Cysewski Gerald R Chief Scientific Officer | 4,729 | $0 | 150,172 (Direct) | View |
2022-08-01 Exercise | 2022-08-02 3:53 pm | N/A N/A | CYANOTECH CORP | CYAN | Cysewski Gerald R Chief Scientific Officer | 666 | $0 | 150,172 (Direct) | View |