AXCELIS TECHNOLOGIES INC — Director's Dealing 2018

May 18, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AXCELIS TECHNOLOGIES INC (ACLS)
CIK: 0001113232
Period of Report: 2018-05-18

Reporting Person: KURTZWEIL JOHN T (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-18	Common Stock	S	900	$21.24	Disposed	31226	Direct

Footnotes

F1: This sale of 900 shares was made to cover the tax liability incident to the vesting of 2,812 shares on May 15, 2018 under a restricted stock unit granted to the director on May 15, 2015.

F2: Of the shares held as of May 18, 2018, 8,450 were issuable on vesting of restricted stock units granted to the director under the 2012 Equity Incentive Plan and are subject to forfeiture.