SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 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: 3235-0104 Estimated average burden hours per response: 0.5

1. Name and Address of Reporting Person* Ruffo Frank (Last) (First) (Middle) C/O ACLARIS THERAPEUTICS, INC. 101 LINDENWOOD DRIVE, SUITE 400 (Street) MALVERN PA 19355 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 10/06/2015	3. Issuer Name and Ticker or Trading Symbol Aclaris Therapeutics, Inc. [ ACRS ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Chief Financial Officer	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	130,434	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Series A Preferred Stock	(1)	(1)	Common Stock	5,797	(1)	D
Series B Preferred Stock	(2)	(2)	Common Stock	1,681	(2)	D
Employee Stock Option (right to buy)	(3)	08/12/2024	Common Stock	7,231	0.72	D
Employee Stock Option (right to buy)	(4)	12/07/2024	Common Stock	20,289	1.52	D
Employee Stock Option (right to buy)	(5)	08/31/2025	Common Stock	65,416	10.66	D

Explanation of Responses:

1. Each share of the Series A Preferred Stock is convertible, at any time, at the holder's election, into 0.289855 shares of the Issuer's common stock. In addition, effective immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A Preferred Stock will automatically convert into 0.289855 shares of the Issuer's common stock. The Series A Preferred Stock has no expiration date.

2. Each share of the Series B Preferred Stock is convertible, at any time, at the holder's election, into 0.289855 shares of the Issuer's common stock. In addition, effective immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series B Preferred Stock will automatically convert into 0.289855 shares of the Issuer's common stock. The Series B Preferred Stock has no expiration date.

3. 25% of the shares underlying this option vested on August 13, 2015 and the remaining shares vest in 36 equal monthly installments thereafter, subject to the reporting person's continued service with the Issuer as of the applicable vesting date.

4. 25% of the shares underlying this option will vest on December 8, 2015 and the remaining shares vest in 36 equal monthly installments thereafter, subject to the reporting person's continued service with the Issuer as of the applicable vesting date.

5. 25% of the shares underlying this option will vest on September 1, 2016 and the remaining shares vest in 36 equal monthly installments thereafter, subject to the reporting person's continued service with the Issuer as of the applicable vesting date.

Remarks:

Exhibit 24.1 - Power of Attorney

	/s/ Brian F. Leaf, Attorney-in-fact	10/06/2015
	** 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 5 (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.

POWER OF ATTORNEY

(For Executing Form ID and Forms 3, 4 and 5)

	Know all by these presents, that the undersigned hereby constitutes and
appoints each of Brent B. Siler, Brian F. Leaf, Mark Ballantyne and Jennifer Don
of Cooley LLP, and Kamil Ali-Jackson of Aclaris Therapeutics, Inc. (the
"Company"), the undersigned's true and lawful attorneys-in-fact and agents to:

	(1)	Prepare, execute in the undersigned's name and on the undersigned's behalf,
and submit to the Securities and Exchange Commission (the "SEC") a Form ID,
Uniform Application for Access Codes to File on EDGAR, including amendments
thereto, and any other documents necessary or appropriate to obtain codes and
passwords enabling the undersigned to make electronic filings with the SEC of
reports required by Section 16(a) of the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), or any rule or regulation thereunder;

	(2)	Prepare, execute in the undersigned's name and on the undersigned's behalf,
and submit to the SEC Forms 3, 4 and 5 (including amendments thereto and joint
filing agreements in connection therewith) in accordance with Section 16(a) of
the Exchange Act and the rules thereunder in the undersigned's capacity as an
officer, director or beneficial owner of more than 10% of a registered class of
securities of the Company;

	(3)	Do and perform any and all acts for and on behalf of the undersigned that
may be necessary or desirable to prepare and execute any such Form 3, 4 or 5
(including amendments thereto and joint filing agreements in connection
therewith) and file such forms with the SEC and any stock exchange,
self-regulatory association or any similar authority; and

	(4)	Take any other action of any type whatsoever in connection with the
foregoing that, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required of the undersigned, it being
understood that the documents executed by the attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as the attorney-in-fact may approve in the
attorney-in-fact's discretion.

	The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be
done by virtue of this power of attorney and the rights and powers herein
granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, and
their substitutes, in serving in such capacity at the request of the
undersigned, are not assuming (nor is the Company assuming) any of the
undersigned's responsibilities to comply with Section 16 of the Exchange Act.

	This Power of Attorney shall remain in full force and effect until the earliest
to occur of (a) the undersigned is no longer required to file Forms 3, 4 and 5
with respect to the undersigned's holdings of and transactions in securities
issued by the Company, (b) revocation by the undersigned in a signed writing
delivered to the Company and the foregoing attorneys-in fact or (c) as to any
attorney-in-fact individually, until such attorney-in-fact is no longer employed
by the Company or Cooley LLP, as applicable.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of the date written below.

Date: 	September 23, 2015

/s/ Frank Ruffo
FRANK RUFFO