ROBERT C. DAIGLE - 08 Aug 2025 Form 4 Insider Report for AMTECH SYSTEMS INC (ASYS)

Signature
/s/ Robert C. Daigle, Chief Executive Officer
Issuer symbol
ASYS
Transactions as of
08 Aug 2025
Transactions value $
$0
Form type
4
Filing time
15 Aug 2025, 15:32:53 UTC
Previous filing
16 May 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
DAIGLE ROBERT C Chairman & CEO, Director C/O AMTECH SYSTEMS, INC., 58 S. RIVER DRIVE, SUITE 370, TEMPE /s/ Robert C. Daigle, Chief Executive Officer 15 Aug 2025 0001267540

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 ASYS Amtech Systems, Inc. Employee Stock Option Award +100K 100K 08 Aug 2025 Amtech Systems, Inc. $0.01 par value common stock 100K $5.09 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Price omitted because the transaction is a grant of a stock option.