Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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 *
Stonepine Capital Management, LLC
  2. Issuer Name and Ticker or Trading Symbol
Recro Pharma, Inc. [REPH]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
919 NW BOND STREET, SUITE 204
3. Date of Earliest Transaction (Month/Day/Year)
05/09/2017
(Street)

BEND, OR 97703
4. If Amendment, Date 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
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 05/09/2017   S   195,059 D $ 7.6351 2,461,950 I See Notes (1) (2) (3)
Common Stock 05/09/2017   S   33,070 D $ 7.6351 2,428,880 I See Notes (1) (2) (4)
Common Stock 05/10/2017   S   6,412 D $ 7.7727 2,422,468 I See Notes (1) (2) (3)
Common Stock 05/10/2017   S   1,088 D $ 7.7727 2,421,380 I See Notes (1) (2) (4)
Common Stock 05/11/2017   S   7,696 D $ 7.9647 2,413,684 I See Notes (1) (2) (3)
Common Stock 05/11/2017   S   1,304 D $ 7.9647 2,412,380 I See Notes (1) (2) (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Stonepine Capital Management, LLC
919 NW BOND STREET
SUITE 204
BEND, OR 97703
    X    

Signatures

 Stonepine Capital Management, LLC, by Timothy P. Lynch, Manager   05/11/2017
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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 filers (the "Filers") are Stonepine Capital Management, LLC (the "General Partner"), Stonepine Capital, L.P. (the "Partnership"), Jon M. Plexico and Timothy P. Lynch. The General Partner is the general partner and investment adviser of investment funds, including the Partnership (collectively, the "Funds"). Mr. Plexico and Mr. Lynch are the General Partner's managers and control persons. These securities are held directly by the Funds for the benefit of their investors and are indirectly beneficially owned by the General Partner and Mr. Plexico and Mr. Lynch as the General Partner's control persons. The General Partner is filing this Form 4 for itself and the other Filers.
(2) The Filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934, as amended. Each Filer disclaims beneficial ownership of these securities except to the extent of that Filer's pecuniary interest therein.
(3) These securities were sold by the Partnership, which held 2,076,784 shares after the transaction on May 9, 2,070,372 shares after the transaction on May 10 and 2,062,676 shares after the transaction on May 11.
(4) These securities were sold by the other Funds.

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