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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person *   Ajdler Arnaud 2. Date of Event Requiring Statement (Month/Day/Year) 03/25/2019 3. Issuer Name and Ticker or Trading Symbol Recro Pharma, Inc. [REPH] (Last) (First) (Middle) C/O RECRO PHARMA, INC., 490 LAPP ROAD 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) MALVERN,, PA 19355 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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 1,064,546 I See footnote (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Ajdler Arnaud C/O RECRO PHARMA, INC. 490 LAPP ROAD MALVERN,, PA 19355	  X	Â	Â	Â

Signatures

/s/ Ryan Lake, Attorney-in-fact		03/27/2019
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The Reporting Person is the managing partner of Engine Capital Management, LP ("Engine Management") and the Managing Member of each of Engine Capital Management GP, LLC ("Engine Management GP") and Engine Investments, LLC ("Engine Investments"). Engine Capital Management GP is the investment manager of Engine Capital, L.P. ("Engine Capital") and Engine Jet Capital, L.P. ("Engine Jet Capital"). Engine Capital owns 881,010 shares and Engine Jet Capital owns 183,536 shares of the Issuer's common stock. The Reporting Person disclaims beneficial ownership in such securities except to the extent of his pecuniary interest therein.
  Remarks: Exhibit List: Exhibit 24 - Power of Attorney

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