13G Filing: James E. Flynn and Aclaris Therapeutics Inc (ACRS)

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Page 2 of 14 – SEC Filing

CUSIP No. 00461U105 13G Page 2
of 11 Pages
1.

NAME OF REPORTING PERSONS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

Deerfield Mgmt, L.P.

2.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)

(b) ☒

3.

SEC USE ONLY

4.

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

 

 

 NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

5.

SOLE VOTING POWER

0

6.

SHARED VOTING POWER

1,769,377 (1)

7.

SOLE DISPOSITIVE POWER

0

8.

SHARED DISPOSITIVE POWER

1,769,377 (1)

9.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,769,377 (1)

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES*

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.90%

12.

TYPE OF REPORTING PERSON*

PN

__________________

(1) Comprised of common stock held by Deerfield Partners, L.P.,
Deerfield Special Situations Fund, L.P. and Deerfield International Master Fund, L.P., of which Deerfield Mgmt, L.P. is the general
partner.

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