CYANOTECH CORP (CYAN)
Data as of , from SEC Form 4 filings.
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About CYANOTECH CORP (CYAN)
CYANOTECH CORP files with the SEC under CIK 0000768408 and is classified as medicinal chemicals and botanical products. We track it alongside the rest of the Health Care sector.
CYAN Form 4 activity by transaction type, last 90 days
No Form 4 activity for CYAN in the last 90 days.
CYAN insider transactions (Form 4)
2211 Form 4 filings on record, the earliest from Oct 1, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jennifer A.S. Miyashiro - Officer | Grant or award | Cyanotech Common Stock Options | 50,000 | $0.00 | - | |
| David L. Vied - Director | Grant or award | Cyanotech Corporation Common Stock | 50,000 | $0.00 | - | |
| David M. Mulder - Director | Grant or award | Cyanotech Corporation Common Stock | 50,000 | $0.00 | - | |
| Michael A. /. Davis - Director | Grant or award | Cyanotech Corporation Common Stock | 50,000 | $0.00 | - | |
| Matthew Keith Custer - Officer | Option exercise | Common Stock | 2,075 | $0.00 | - | |
| Matthew Keith Custer - Officer | Option exercise | Restricted Stock Units | 2,075 | $0.00 | - | |
| Amy Beth Nordin - Officer | Option exercise | Common Stock | 1,502 | $0.00 | - | |
| Amy Beth Nordin - Officer | Tax withholding / forfeiture | Common Stock | 525 | $0.41 | $213 | |
| Amy Beth Nordin - Officer | Option exercise | Restricted Stock Units | 1,502 | $0.00 | - | |
| Jennifer M. Johansen - Officer | Option exercise | Common Stock | 1,380 | $0.00 | - | |
| Jennifer M. Johansen - Officer | Tax withholding / forfeiture | Common Stock | 518 | $0.41 | $210 | |
| Jennifer M. Johansen - Officer | Option exercise | Restricted Stock Units | 1,380 | $0.00 | - | |
 Glenn Jensen - Officer | Option exercise | Common Stock | 1,642 | $0.00 | - | |
| Glenn Jensen - Officer | Tax withholding / forfeiture | Common Stock | 617 | $0.41 | $250 | |
| Glenn Jensen - Officer | Option exercise | Restricted Stock Units | 1,642 | $0.00 | - | |
 Gerald R. Cysewski | Option exercise | Common Stock | 1,577 | $0.00 | - | |
| Gerald R. Cysewski | Tax withholding / forfeiture | Common Stock | 592 | $0.41 | $240 | |
| Gerald R. Cysewski | Option exercise | Restricted Stock Units | 1,577 | $0.00 | - | |
| Michael A. /. Davis - Director | Open-market purchase | Cyanotech Corporation Common Stock | 5,000 | $0.76 | $4K | |
| Michael A. /. Davis - Director | Grant or award | Cyanotech Corporation Common Stock | 13,158 | $0.76 | $10K | |
| Michael A. /. Davis - Director | Open-market purchase | Cyanotech Corporation Common Stock | 5,000 | $0.77 | $4K | |
| Michael A. /. Davis - Director | Open-market purchase | Cyanotech Corporation Common Stock | 5,000 | $0.76 | $4K |
CYAN insider trading FAQ
What is the latest insider trade for CYAN?
CYANOTECH CORP (CYAN) has filed no insider reports in the last 90 days. The most recent on record is dated 2025-09-12. The full record for CYAN runs to 11 Form 4 filings, the earliest from 2024-10-01. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying CYAN stock?
No insider purchases of CYAN were filed in the last 90 days. 3 purchases are on record for this company.
How many insiders are selling CYAN stock?
No insider sales of CYAN were filed in the last 90 days.
Where can I see CYAN SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects CYAN Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Jennifer A.S. Miyashiro view on EDGAR
- - David L. Vied view on EDGAR
- - David M. Mulder view on EDGAR
- - Michael A. /. Davis view on EDGAR
- - Matthew Keith Custer view on EDGAR
- - Amy Beth Nordin view on EDGAR
- - Jennifer M. Johansen view on EDGAR
- - Glenn Jensen view on EDGAR
- - Gerald R. Cysewski view on EDGAR
- - Michael A. /. Davis view on EDGAR
Related companies with recent insider activity
Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Insider activity in Health Care
- Where CYAN's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
Follow CYAN with a 7-day demo
- CYAN on your watchlist
- Every CYAN Form 4 filing on record
- Up to 3 months of CYAN price history
- The daily trading plan of ranked insider buys, on a delay, with the plan archive
