[Form 3] CYANOTECH CORP Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Cyanotech Corp (CYAN) disclosure: Jennifer A.S. Miyashiro is reported as an officer (Chief Financial Officer, Vice President Finance & Administration, Treasurer) of the company and the filing is an initial Form 3 disclosing beneficial ownership. The filing states that the reporting person does not beneficially own any securities of the issuer as reported in this initial statement.

Positive

• Officer role clearly disclosed showing transparency about the reporting person's position with the issuer
• Initial Form 3 filed to satisfy Section 16 reporting obligations

Negative

• No beneficial ownership reported, which may indicate lack of insider equity alignment with shareholders

Insights

Corporate Governance Expert

TL;DR: Initial insider filing shows officer role disclosed but no personal stake in company stock.

The Form 3 properly identifies the reporting person and her executive roles with the issuer and serves to meet Section 16 disclosure requirements. The notable item is the explicit statement that no securities are beneficially owned, which is neutral from a governance transparency perspective: the company has a documented insider with clear responsibilities, and the filing confirms there are no undisclosed holdings to reconcile.

Securities Analyst

TL;DR: Routine initial ownership filing with no holdings reported, so no direct impact on share supply or insider alignment.

From a market-impact viewpoint, this filing is informational only. It documents an officer-level insider but reports zero beneficial ownership, meaning there is no immediate insider selling or buying activity reflected here and no change to outstanding share distribution reported in this document.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Miyashiro Jennifer A.S.

(Last) (First) (Middle)

CYANOTECH CORPORATION

73-4460 QUEEN KAAHUMANU HWY #102

(Street)

KAILUA-KONA HI 96740

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/21/2025

3. Issuer Name and Ticker or Trading Symbol
CYANOTECH CORP [ CYAN ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CFO, VP Fin & Admin, Treasurer

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Linda Tanoai	09/12/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

Who is the reporting person on the Form 3 for CYAN?

Jennifer A.S. Miyashiro, identified as Chief Financial Officer, Vice President Finance & Administration, and Treasurer of Cyanotech Corp.

What does the Form 3 for CYAN disclose about ownership?

The filing states that the reporting person does not beneficially own any securities of the issuer as reported in this initial statement.

What type of filing is this for Cyanotech Corp (CYAN)?

This is an initial Form 3, the required initial statement of beneficial ownership under Section 16.

Was the Form 3 filed by more than one reporting person?

No. The form indicates it was filed by one reporting person.

Is there any derivative or indirect ownership reported in this Form 3?

No. The filing explicitly states that no securities are beneficially owned, and no derivative or indirect holdings are listed.