Matthew Keith Custer

Insider Reports History

Location: 73 4460 Queen Kaahumanu Hwy #102, Kailua Kona, HI
Signature: /s/ Amy B. Nordin by POA
All insider transactions: Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Matthew Keith Custer:

Stock	Role	Class	Num Shares	Value	Price $	Report Date	Ownership
CYANOTECH CORP	President and CEO, Director	Common Stock	6.75K	$1.45K	$0.31	Jul 29, 2025	Direct
CYANOTECH CORP	President and CEO, Director	Restricted Stock Units	64.1K	$654	$0.31	Jul 29, 2025	Direct
CYANOTECH CORP	President and CEO, Director	Cyanotech common stock options	150K			Jun 16, 2025	Direct

Showing 1 to 3 of 3 entries

Insider Reports Filed by Matthew Keith Custer

Symbol	Company	Period	Transactions	Value $	Form Type	Date Filed	Role
CYAN	CYANOTECH CORP	Jul 29, 2025	2	$0	4	Jul 31, 2025	President and CEO, Director
CYAN	CYANOTECH CORP	Jun 16, 2025	2	$0	4	Jun 18, 2025	President and CEO, Director
CYAN	CYANOTECH CORP	Apr 7, 2025	2	$0	4	Apr 9, 2025	President and CEO, Director
CYAN	CYANOTECH CORP	Jul 29, 2024	3	-$436	4	Jul 31, 2024	President and CEO, Director
CYAN	CYANOTECH CORP	Apr 8, 2024	3	-$5	4	Apr 10, 2024	President and CEO, Director
CYAN	CYANOTECH CORP	Jul 31, 2023	3	-$822	4	Aug 1, 2023	President and CEO, Director
CYAN	CYANOTECH CORP	Apr 6, 2023	4	-$12	4	Apr 10, 2023	President and CEO, Director
CYAN	CYANOTECH CORP	Jul 29, 2022	4	-$627	4	Aug 2, 2022	President and CEO, Director
CYAN	CYANOTECH CORP	Jun 21, 2022	1	$0	4	Jun 22, 2022	President and CEO, Director
CYAN	CYANOTECH CORP	Apr 6, 2022	3	-$39	4	Apr 8, 2022	President
CYAN	CYANOTECH CORP	Jul 30, 2021	2	$0	4	Aug 3, 2021	President
CYAN	CYANOTECH CORP	Jul 13, 2021	2	$0	4	Jul 15, 2021	President
CYAN	CYANOTECH CORP	May 20, 2021	1	$0	4	May 25, 2021	President