Key facts
- This page summarizes Jennifer A.s. Miyashiro's Form 4 filing for CYANOTECH CORP (CYAN).
- 1 reported transaction and 1 derivative row are listed below.
- Accepted by SEC: 16 Sep 2025, 15:40.
Jennifer A.s. Miyashiro - 12 Sep 2025 Form 4 Insider Report for CYANOTECH CORP (CYAN)
- Reporting relationship
- CFO, VP Fin & Admin, Treasurer
- Issuer ticker
- CYAN
- Reported as of
- 12 Sep 2025
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 16 Sep 2025, 15:40:05 UTC
- Prior SEC filing
- 12 Sep 2025
- Source filing
- View source filing
- Reporting owner signature
- /s/ Linda Tanoai, by Power of Attorney
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Jennifer A.s. Miyashiro filed Form 4 for CYANOTECH CORP (CYAN) on 16 Sep 2025.
Change
- Previous filing in this sequence was filed on 12 Sep 2025.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0002084332
Primary reporting owner
Miyashiro Jennifer A.S.
- Relationship
- CFO, VP Fin & Admin, Treasurer
- Address
- 73-4460 QUEEN KAAHUMANU HWY #102, KAILUA-KONA
- Signature
- /s/ Linda Tanoai, by Power of Attorney
- Signature date
- 15 Sep 2025
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
CYAN
transaction
Derivative
Cyanotech Common Stock Options
Award
- Transaction value
- $0
- Shares
- +50,000
- Change %
- Price
- $0.000000
- Shares after
- 50,000
- Date
- 12 Sep 2025
- Ownership
- Direct
- Underlying class
- Cyanotech Common Stock
- Underlying amount
- 50,000
- Exercise price
- $0.2900
- Footnotes
- F1
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
The stock options applicable vesting date as to 16,666 shares on September 12, 2026, 16,667 shares on September 12, 2027 and 16,667 shares on September 12, 2028 in each case subject to the continued service with Cyanotech on the vesting date.