Axcelis (ACLS) director Titinger sells 2,000 shares, retains RSU-based stake

Rhea-AI Filing Summary

Axcelis Technologies director Jorge Titinger reported an open-market sale of 2,000 shares of common stock on May 13, 2026 at a price of $164.14 per share. After this transaction, he directly held 4,477 shares, including 3,586 shares issuable upon vesting of restricted stock units that remain subject to forfeiture.

Insights

Equity compensation and insider-trading analyst

Director executes a moderate open-market sale, with most remaining stake tied to RSUs.

Director Jorge Titinger sold 2,000 shares of Axcelis Technologies common stock in an open-market transaction at $164.14 per share. Following the sale, his reported direct holdings total 4,477 shares.

A footnote clarifies that 3,586 of the post-transaction shares are issuable upon vesting of restricted stock units under the 2012 Equity Incentive Plan and are subject to forfeiture. This indicates a substantial portion of his remaining exposure is through unvested equity awards rather than fully vested stock.

The filing shows one net open-market sale, with no accompanying option exercises or derivative transactions. From an investment perspective, this appears as a routine insider sale, with the overall impact depending on how investors weigh insider selling versus the continuing equity-based alignment through RSUs.

Insider Trade Summary

Net Seller: 2,000 shares

Net Sell 1 txn

Insider Titinger Jorge

Role Director

Sold 2,000 shs ($328K)

Type	Security	Shares	Price	Value
Sale	Common Stock	2,000	$164.14	$328K

Holdings After Transaction: Common Stock — 4,477 shares (Direct)

Footnotes (1)

1. F1. Of the shares held after this sale on May 13, 2026, 3,586 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

Shares sold: 2,000 shares Sale price: $164.14 per share Shares held after transaction: 4,477 shares +1 more

4 metrics

Shares sold 2,000 shares Open-market sale of common stock on May 13, 2026

Sale price $164.14 per share Price for the 2,000 common shares sold

Shares held after transaction 4,477 shares Director’s direct holdings following the sale

RSUs included in holdings 3,586 shares Shares issuable upon vesting of restricted stock units, subject to forfeiture

Key Terms

open-market sale, restricted stock units, 2012 Equity Incentive Plan, subject to forfeiture

4 terms

open-market sale financial

"transaction_action: open-market sale"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

restricted stock units financial

"3,586 were issuable on vesting of restricted stock units granted to the director"

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 to the director under the 2012 Equity Incentive Plan"

subject to forfeiture financial

"and are subject to forfeiture"

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

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 05/14/2026 - 05:05 PM Learn about SEC filing dates

FAQ

What insider transaction did Axcelis Technologies (ACLS) director Jorge Titinger report?

Director Jorge Titinger reported selling 2,000 shares of Axcelis Technologies common stock. The shares were sold in an open-market transaction at a price of $164.14 per share, as disclosed in the Form 4 insider trading report.

How many Axcelis (ACLS) shares does Jorge Titinger hold after this Form 4 sale?

After the reported transaction, Jorge Titinger holds 4,477 shares of Axcelis common stock. According to the filing, this total includes 3,586 shares issuable upon vesting of restricted stock units that remain subject to potential forfeiture.

What price did Axcelis (ACLS) director Jorge Titinger receive for the shares sold?

The Form 4 states that Jorge Titinger sold 2,000 Axcelis common shares at $164.14 per share. This price reflects the per-share consideration for the reported open-market sale on May 13, 2026, not an average over multiple days.

Are Jorge Titinger’s remaining Axcelis (ACLS) shares fully vested after this transaction?

Not all remaining shares are fully vested. The footnote explains that 3,586 of the 4,477 shares held after the sale are issuable upon vesting of restricted stock units granted under the 2012 Equity Incentive Plan and can still be forfeited.

Does this Axcelis (ACLS) Form 4 include any option exercises or derivative transactions?

The Form 4 only reports a single non-derivative open-market sale of common stock. The transaction summary shows no option exercises, no derivative security transactions, and no tax-withholding or gift-related movements in this particular filing.

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^*

Titinger Jorge

(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)
05/13/2026

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	05/13/2026		S		2,000	D	$164.14	4,477(1)	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. Of the shares held after this sale on May 13, 2026, 3,586 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	05/14/2026
	** 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)