Amtech Systems grants 15,000 RSUs to CFO

SABOL THOMAS B reported acquisition or exercise transactions in this Form 4 filing.

Accepted by SEC EDGAR 08/05/2026 - 04:19 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

SABOL THOMAS B reported acquisition or exercise transactions in this Form 4 filing.

Amtech Systems, Inc. reported an equity compensation grant to its Chief Financial Officer, Thomas B. Sabol. On 2026-08-04 he received 15,000 Restricted Stock Units, each representing a right to one share of common stock. One-third of the RSUs vest on each of the first three anniversaries of the grant, leaving him with 15,000 RSUs held directly after this award.

Insider Trade Summary

Grant/Award: 15,000 shares

Grant/Award 1 txn

Insider SABOL THOMAS B

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units F1, F2	15,000	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 15,000 contracts (Direct)

Footnotes (2)

1. F1. Each restricted stock unit represents a contingent right to receive one share of Common Stock of Amtech Systems, Inc.
2. F2. One-third (1/3) of the restricted stock units shall vest on each of the first three anniversaries of the grant date.

Key Figures

Restricted Stock Units granted: 15,000.0000 units Grant price per RSU: $0.0000 RSUs after transaction: 15,000.0000 units +1 more

4 metrics

Restricted Stock Units granted 15,000.0000 units Equity award to Chief Financial Officer on 2026-08-04

Grant price per RSU $0.0000 Reported transaction price per Restricted Stock Unit for the award

RSUs after transaction 15,000.0000 units Total Restricted Stock Units held directly by the reporting person following the grant

Vesting schedule 1/3 of units on each of the first three anniversaries Time-based vesting of the 15,000 Restricted Stock Units

Key Terms

Restricted Stock Units, contingent right, vest

3 terms

Restricted Stock Units financial

"security title reported as "Restricted Stock Units" for the equity grant"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

contingent right financial

"Each restricted stock unit represents a contingent right to receive one share"

vest financial

"One-third of the restricted stock units shall vest on each of the first three anniversaries"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did ASYS report for CFO Thomas B. Sabol?

Amtech Systems (ASYS) reported an equity grant to CFO Thomas B. Sabol. On 2026-08-04 he received 15,000 Restricted Stock Units, each representing a right to one share of common stock, resulting in 15,000 RSUs reported as directly held after the transaction.

How many RSUs were granted to the ASYS CFO and what do they represent?

The ASYS CFO received 15,000 Restricted Stock Units. Each unit represents a contingent right to receive one share of Amtech Systems, Inc. common stock, linking the value of the award directly to the company’s equity over time as the units vest.

What is the vesting schedule for the 15,000 RSUs granted by ASYS?

The 15,000 RSUs granted by ASYS vest in three equal installments. One-third of the restricted stock units vest on each of the first three anniversaries of the grant date, creating a three-year vesting period tied to continued service by the CFO.

Did the ASYS RSU grant to the CFO have a cash price per share?

The RSU grant to the ASYS CFO shows a transaction price of $0.0000 per unit. This reflects that Restricted Stock Units are an equity compensation award, not a cash purchase, and do not require the executive to pay an exercise or purchase price.

What are Thomas B. Sabol’s reported RSU holdings in ASYS after this grant?

After the reported grant, Thomas B. Sabol holds 15,000 Restricted Stock Units in Amtech Systems, Inc. These RSUs are reported as directly owned and will convert into shares of common stock as they vest over the three-year vesting schedule.

Is the ASYS CFO’s RSU award classified as a direct or indirect holding?

The RSU award to the ASYS CFO is reported as a direct holding. The ownership code is “D,” indicating the 15,000 Restricted Stock Units are directly owned by Thomas B. Sabol rather than through a trust, fund, or other indirect entity.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

SABOL THOMAS B

(Last) (First) (Middle)

C/O AMTECH SYSTEMS, INC.

58 S. RIVER DRIVE, SUITE 370

(Street)

TEMPE ARIZONA 85288

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AMTECH SYSTEMS INC [ ASYS ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/04/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	08/04/2026		A		15,000		(2)	(2)	Amtech Systems, Inc. $0.01 par value common stock	15,000	$0	15,000	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of Common Stock of Amtech Systems, Inc.

2. One-third (1/3) of the restricted stock units shall vest on each of the first three anniversaries of the grant date.

	/s/ Thomas B Sabol	08/05/2026
	** 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 4 (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.
* Form 4: SEC 1474 (03-26)