AXCELIS TECHNOLOGIES INC — Director's Dealing 2017

Feb 17, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AXCELIS TECHNOLOGIES INC (ACLS)
CIK: 0001113232
Period of Report: 2017-02-15

Reporting Person: Lawson Douglas A. (EVP, Corporate Mktg & Strategy)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-02-15	Common Stock	D	2545	$0.00	Disposed	28809	Direct
2017-02-15	Common Stock	F	1237	$0.00	Disposed	27572	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3125	Indirect

Footnotes

F1: These shares were issuable on restricted stock units which forfeited on February 15, 2017 as a result of the non-achievement of 2016 performance goals.

F2: These shares were withheld by the Company to cover the tax withholding obligations of the executive on the vesting of restricted stock units on February 15, 2017.

F3: On February 15, 2017, restricted stock units with performance vesting terms granted in May 2016 were determined to have vested as to 60% of the units. The remaining units forfeited. The shares issued to the executive on the vested units were reduced by shares having a value equal to the executive's tax withholding obligation. After these events, of the shares held by the executive as of February 15, 2017, 19,091 were issuable on vesting of other restricted stock units which remain subject to forfeiture.