CIK 0000768408 · Non-accelerated filer<br>Smaller reporting company
CYANOTECH CORP
Sign in to watch- Ticker
- CYAN
- Exchange
- OTC
- Industry
- Medicinal Chemicals & Botanical Products
- FY end
- Mar 31
- Incorporated
- NV
- Entity type
- operating
- EIN
- 911206026
- Phone
- 8083261353
- Business address
- 73-4460 QUEEN KAAHUMANU HWY, SUITE 102, KAILUA KONA, HI, 96740
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2025-09-12 | Miyashiro Jennifer A.S. CFO, VP Fin & Admin, Treasurer | Grant or award · Cyanotech Common Stock Options | +50,000 | 50,000 | ||
| 2025-08-28 | MULDER DAVID M Director | Grant or award | +50,000 | 203,468 | ||
| 2025-08-28 | Vied David L Director | Grant or award | +50,000 | 225,138 | ||
| 2025-08-28 | DAVIS MICHAEL A / Director | Grant or award | +50,000 | 1,528,598 | ||
| 2025-07-29 | Custer Matthew Keith President and CEO | Option exercise | +2,075 | 6,754 | ||
| 2025-07-29 | Custer Matthew Keith President and CEO | Option exercise · Restricted Stock Units | −2,075 | 64,137 | ||
| 2025-07-29 | Nordin Amy Beth VP, HR, Secretary | Option exercise | +1,502 | 9,576 | ||
| 2025-07-29 | Nordin Amy Beth VP, HR, Secretary | Shares withheld for taxes | −525 | $0.41 | $213 | 9,051 |
| 2025-07-29 | Nordin Amy Beth VP, HR, Secretary | Option exercise · Restricted Stock Units | −1,502 | 34 | ||
| 2025-07-29 | Johansen Jennifer M. VP, Quality, Regulatory & Govt | Option exercise | +1,380 | 10,261 | ||
| 2025-07-29 | Johansen Jennifer M. VP, Quality, Regulatory & Govt | Shares withheld for taxes | −518 | $0.41 | $210 | 9,743 |
| 2025-07-29 | Johansen Jennifer M. VP, Quality, Regulatory & Govt | Option exercise · Restricted Stock Units | −1,380 | 34 | ||
| 2025-07-29 | Cysewski Gerald R Chief Scientific Officer | Option exercise | +1,577 | 147,289 | ||
| 2025-07-29 | Cysewski Gerald R Chief Scientific Officer | Shares withheld for taxes | −592 | $0.41 | $240 | 146,697 |
| 2025-07-29 | Cysewski Gerald R Chief Scientific Officer | Option exercise · Restricted Stock Units | −1,577 | 34 | ||
| 2025-07-29 | Jensen Glenn VP, Operations | Option exercise | +1,642 | 27,727 | ||
| 2025-07-29 | Jensen Glenn VP, Operations | Shares withheld for taxes | −617 | $0.41 | $250 | 27,110 |
| 2025-07-29 | Jensen Glenn VP, Operations | Option exercise · Restricted Stock Units | −1,642 | 34 | ||
| 2025-06-16 | Custer Matthew Keith President and CEO | Grant or award · Cyanotech common stock options | +150,000 | 150,000 | ||
| 2025-06-16 | Custer Matthew Keith President and CEO | Grant or award · Restricted Stock Units | +64,103 | 4,679 |
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