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CYAN · Cyanotech Corp

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$0.26 At close · Feb 20
Market Cap
$3.33M
Shares
7.39M

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.

Date Insider Type Shares
2025-09-12
Miyashiro Jennifer A.S.
Award
50,000
2025-08-28
Vied David L
Award
50,000
2025-08-28
DAVIS MICHAEL A /
Award
50,000
2025-08-28
MULDER DAVID M
Award
50,000
2025-07-29
Nordin Amy Beth
Convert
1,502
2025-07-29
Cysewski Gerald R
Tax
592
2025-07-29
Jensen Glenn
Tax
617
2025-07-29
Cysewski Gerald R
Convert
1,577
2025-07-29
Nordin Amy Beth
Tax
525
2025-07-29
Johansen Jennifer M.
Convert
1,380
2025-07-29
Johansen Jennifer M.
Tax
518
2025-07-29
Cysewski Gerald R
Convert
1,577
2025-07-29
Jensen Glenn
Convert
1,642
2025-07-29
Custer Matthew Keith
Convert
2,075
2025-07-29
Jensen Glenn
Convert
1,642
2025-07-29
Nordin Amy Beth
Convert
1,502
2025-07-29
Custer Matthew Keith
Convert
2,075
2025-07-29
Johansen Jennifer M.
Convert
1,380
2025-06-16
Custer Matthew Keith
Award
150,000
2025-06-16
Custer Matthew Keith
Award
64,103
2025-05-19
Brand Jennifer Kimberly
Award
50,000
2025-05-19
Nordin Amy Beth
Award
75,000
2025-05-19
Jensen Glenn
Award
25,000
2025-04-07
Jensen Glenn
Convert
33
2025-04-07
Custer Matthew Keith
Convert
33
2025-04-07
Cysewski Gerald R
Tax
13
2025-04-07
Kakuk Collette Nicole
Tax
14
2025-04-07
Kakuk Collette Nicole
Convert
33
2025-04-07
Kakuk Collette Nicole
Convert
33
2025-04-07
Nordin Amy Beth
Tax
12
2025-04-07
Cysewski Gerald R
Convert
33
2025-04-07
Johansen Jennifer M.
Tax
13
2025-04-07
Jensen Glenn
Tax
13
2025-04-07
Custer Matthew Keith
Convert
33
2025-04-07
Johansen Jennifer M.
Convert
33
2025-04-07
Jensen Glenn
Convert
33
2025-04-07
Johansen Jennifer M.
Convert
33
2025-04-07
Cysewski Gerald R
Convert
33
2025-04-07
Nordin Amy Beth
Convert
33
2025-04-07
Nordin Amy Beth
Convert
33
2025-02-18
Kakuk Collette Nicole
Convert
3,900
2025-02-18
Nordin Amy Beth
Convert
3,400
2025-02-18
Cysewski Gerald R
Tax
1,464
2025-02-18
Cysewski Gerald R
Convert
3,900
2025-02-18
Nordin Amy Beth
Tax
1,189
2025-02-18
Nordin Amy Beth
Convert
3,400
2025-02-18
Cysewski Gerald R
Convert
3,900
2025-02-18
Jensen Glenn
Convert
3,570
2025-02-18
Jensen Glenn
Tax
1,340
2025-02-18
Johansen Jennifer M.
Convert
3,200
Legend Buy — open-market purchase Sell — open-market sale Shares acquired Shares disposed (gift, conversion, tax…)
Showing 1–50 of 431 transactions
Key facts CIK 768408 CUSIP 232437301 Visit website Investor relations