Axcelis director awarded 1,440 RSUs

KURTZWEIL JOHN T reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

KURTZWEIL JOHN T reported acquisition or exercise transactions in this Form 4 filing.

Axcelis Technologies director John T. Kurtzweil received an equity award rather than buying shares on the market. He was granted 1,440 shares of common stock in the form of restricted stock units at no cost on May 15, 2026, under the company’s 2012 Equity Incentive Plan. These units are subject to forfeiture and will vest on May 15, 2027 if he completes his current Board term. After this award, he holds 36,490 shares of Axcelis common stock directly, including the unvested restricted stock units.

Insider Trade Summary

Grant/Award: 1,440 shares

Grant/Award 1 txn

Insider KURTZWEIL JOHN T

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,440	$0.00	$0.00

Holdings After Transaction: Common Stock — 36,490 shares (Direct)

Footnotes (2)

1. F1. These shares are issuable on vesting of restricted stock units granted under the Company's 2012 Equity Incentive Plan on May 15, 2026. Assuming completion of the director's current term of service on the Board of Directors, these restricted stock units will vest on May 15, 2027.
2. F2. Of the shares held as of May 15, 2026, 1,440 were issuable on vesting of restricted stock units granted to the director under the 2012 Equity Incentive Plan and are subject to forfeiture.

Key Figures

RSU grant size: 1,440 shares Grant price: $0.0000 per share Total holdings after grant: 36,490 shares +2 more

5 metrics

RSU grant size 1,440 shares Restricted stock units granted May 15, 2026

Grant price $0.0000 per share Compensation award, not market purchase

Total holdings after grant 36,490 shares Direct Axcelis common stock after transaction

Vesting date May 15, 2027 RSUs vest upon completion of current Board term

Grant plan 2012 Equity Incentive Plan Plan under which RSUs were awarded

Key Terms

restricted stock units, 2012 Equity Incentive Plan, subject to forfeiture, Grant, award, or other acquisition

4 terms

restricted stock units financial

"These shares are issuable on vesting of restricted stock units granted under the Company's 2012 Equity Incentive Plan"

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.

2012 Equity Incentive Plan financial

"restricted stock units granted under the Company's 2012 Equity Incentive Plan on May 15, 2026"

subject to forfeiture financial

"1,440 were issuable on vesting of restricted stock units ... and are subject to forfeiture"

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

FAQ

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

What insider transaction did Axcelis Technologies (ACLS) report for John T. Kurtzweil?

Axcelis reported that director John T. Kurtzweil received 1,440 shares of common stock as a restricted stock unit grant. The award was made on May 15, 2026 under the company’s 2012 Equity Incentive Plan as part of his Board compensation.

Did John T. Kurtzweil buy or sell Axcelis (ACLS) shares in this Form 4 filing?

He did not buy or sell shares on the open market. The Form 4 shows an acquisition coded “A,” meaning a grant or award. He received 1,440 restricted stock units at no cash cost as equity compensation for his Board service.

How many Axcelis (ACLS) shares were granted to John T. Kurtzweil and at what price?

He was granted 1,440 shares of Axcelis common stock in the form of restricted stock units. The transaction price per share is reported as $0.0000, reflecting that this was a compensation award, not a market purchase requiring cash payment.

When do John T. Kurtzweil’s new Axcelis (ACLS) restricted stock units vest?

The 1,440 restricted stock units will vest on May 15, 2027, assuming he completes his current term of service on the Axcelis Board. Until that vesting date, the units are subject to forfeiture under the 2012 Equity Incentive Plan terms.

How many Axcelis (ACLS) shares does John T. Kurtzweil hold after this grant?

Following the grant, he holds 36,490 shares of Axcelis common stock directly. This total includes the 1,440 shares that are currently issuable upon future vesting of restricted stock units and remain subject to forfeiture conditions until May 15, 2027.

What plan governs John T. Kurtzweil’s restricted stock units from Axcelis (ACLS)?

The restricted stock units were granted under Axcelis Technologies’ 2012 Equity Incentive Plan. The footnotes state that 1,440 shares are issuable upon vesting and are subject to forfeiture, reflecting standard equity compensation terms for directors.

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

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Accepted by SEC EDGAR 05/18/2026 - 05:05 PM Learn about SEC filing dates

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^*

KURTZWEIL JOHN T

(Last) (First) (Middle)

C/O AXCELIS TECHNOLOGIES, INC.

108 CHERRY HILL DRIVE

(Street)

BEVERLY MASSACHUSETTS 01915

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AXCELIS TECHNOLOGIES INC [ ACLS ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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
Common Stock	05/15/2026		A		1,440	A	$0(1)	36,490(2)	D

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

Explanation of Responses:

1. These shares are issuable on vesting of restricted stock units granted under the Company's 2012 Equity Incentive Plan on May 15, 2026. Assuming completion of the director's current term of service on the Board of Directors, these restricted stock units will vest on May 15, 2027.

2. Of the shares held as of May 15, 2026, 1,440 were issuable on vesting of restricted stock units granted to the director under the 2012 Equity Incentive Plan and are subject to forfeiture.

	/s/ Eileen J. Evans, Attorney-in-Fact	05/18/2026
	** 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)