Matthew Keith Custer - Apr 7, 2025 Form 4 Insider Report for CYANOTECH CORP (CYAN)

Role: President and CEO, Director
Signature: /s/Laura L. Taylor, by Power of Attorney
Stock symbol: CYAN
Transactions as of: Apr 7, 2025
Transactions value $: $0
Form type: 4
Date filed: 4/9/2025, 04:01 PM
Previous filing: Jul 31, 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CYAN	Common Stock	Options Exercise	$0	+33	+0.71%	$0.00	4.68K	Apr 7, 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CYAN	Restricted Stock Units	Options Exercise	$0	-33	-1.54%	$0.00	2.11K	Apr 7, 2025	Common Stock	33		Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the conversion upon vesting of restricted stock units into common stock.
F2	Each restricted stock unit represents the contingent right to receive one (1) share of Cyanotech Common Stock.
F3	The restricted stock units vest as to 2,075 shares on July 29, 2025; and 34 shares on April 6, 2026, in each case subject to the reporting person's continued service with the Company on the vesting date.