CUSTER MATTHEW KEITH

PrivateCIK: 1789455
Location

KAILUA KONA, HI

CUSTER MATTHEW KEITH (Vice President, Gen Mgr) exercised options at CYANOTECH CORP

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise
InsiderCUSTER MATTHEW KEITHCIK 1789455
IssuerCYANOTECH CORPCIK 768408
Officer· Vice President, Gen Mgr
Since Aug 2019
0.00
Net shares
Net seller
$0.00
Total acquired
0
Open market trades
0B · 0S
2
Total transactions
2.08K acquired · 2.08K disposed
Non-Derivative Transactions1

Common Stock

Direct
M · Option Exercise

Shares

+2.08K

Price / share

Trade value

% of position

44.3%
7/29/2025
4.68K6.75K
Total

Net shares

+2.08K

Net value

$0.00

Derivative Transactions1

Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

2.08K shares

Shares

2.08K

Strike price

Held after

64.14K

Exercisable

7/29/2025
CUSTER MATTHEW KEITH — Insider Transaction (Form 4) Filed Jul 31, 2025 | Finecho