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 * El-Hibri Fuad   2. Issuer Name and Ticker or Trading Symbol Emergent BioSolutions Inc. [EBS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chairman (Last) (First) (Middle) 2273 RESEARCH BLVD., SUITE 400 3. Date of Earliest Transaction (Month/Day/Year) 03/08/2013 (Street) ROCKVILLE, MD 20850 4. If Amendment, Date Original Filed(Month/Day/Year) 03/12/2013 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 03/08/2013   F   3,818 D $ 15.22 1,841,752 (1) D   Common Stock 03/12/2013   F   1,463 D $ 14.67 1,840,289 (2) D   Common Stock 03/12/2013   A   20,902 (3) A $ 0 1,861,191 (4) D (5)

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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
El-Hibri Fuad 2273 RESEARCH BLVD., SUITE 400 ROCKVILLE, MD 20850	X	X	Chairman

Signatures

/s/ Carl A. Valenstein, attorney-in-fact		04/18/2013
**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)	This amendment on Form 4/A is being filed to correct an overstatement of 590 shares in the amount of securities disposed of by the reporting person and to correct the resulting amount of securities beneficially owned by the reporting person following such disposition. Except as described in footnotes 2 and 4, there are no other changes from the information originally reported on the Form 4 as originally filed on March 12, 2013.
(2)	This amendment on Form 4/A is being filed to correct an overstatement of 254 shares in the amount of securities disposed of by the reporting person and to correct the resulting amount of securities beneficially owned by the reporting person following such disposition. Except as described in footnotes 1 and 4, there are no other changes from the information originally reported on the Form 4 as originally filed on March 12, 2013.
(3)	These restricted stock units vest in three equal annual installments beginning on the first anniversary of the date of grant, assuming continued service with the company. Each restricted stock unit represents the right of the Reporting Person to receive one share of common stock of Emergent BioSolutions Inc., subject to adjustment as provided in the grant agreement.
(4)	Adjusted to reflect the correct total number of securities beneficially owned by the reporting person after giving effect to the corrections described in footnotes 1 and 2. Except as described in footnotes 1 and 2, there are no other changes from the information originally reported on the Form 4 as originally filed on March 12, 2013.
(5)	Mr. El-Hibri's direct holdings include restricted stock units granted under the Amended and Restated Emergent BioSolutions Inc. 2006 Stock Incentive Plan.

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