Catabasis Pharmaceuticals Inc (CATB): Deerfield Management Adds to Its Position

Page 3 of 12 – SEC Filing

CUSIP No.

14875P107

13G

Page 3 of 9

 

1.	NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Deerfield Management Company, L.P.
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*		(a) o   (b) ý
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   783,375 (2)
	7.	SOLE DISPOSITIVE POWER   0
	8.	SHARED DISPOSITIVE POWER   783,375 (2)
9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON   783,375 (2)
10.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*		o
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 4.21%
12.	TYPE OF REPORTING PERSON*   PN

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(2) Comprised of shares of common stock held by Deerfield Special Situations Fund, L.P., of which Deerfield Management Company, L.P. is the investment advisor.