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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1. Name and Address of Reporting Person * Abdun-Nabi Daniel   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 _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President and CEO (Last) (First) (Middle) 400 PROFESSIONAL DR, SUITE 400 3. Date of Earliest Transaction (Month/Day/Year) 01/10/2017 (Street) GAITHERSBURG, MD 20879 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 (1) 08/01/2016   J   1,979 A $ 0 172,945 D   Common Stock (2) 08/01/2016   J   3,032 A $ 0 175,977 D   Common Stock (3) 08/01/2016   J   3,419 A $ 0 179,396 D   Common Stock 01/10/2017   M   38,006 (4) A $ 14.51 217,402 D   Common Stock 01/10/2017   S   28,240 (4) D $ 31.2782 (5) 189,162 D

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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

Stock Option (Right to buy) (6)

$ 14.51

08/01/2016

J

3,662

(8)

03/08/2017

Common Stock

3,662

$ 0

41,668

D

Stock Option (Right to buy) (7)

$ 14.51

01/10/2017

M

38,006

(8)

03/08/2017

Common Stock

38,006

$ 0

3,662

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Abdun-Nabi Daniel 400 PROFESSIONAL DR, SUITE 400 GAITHERSBURG, MD 20879	X		President and CEO

Signatures

/s/ Eric Burt, Attorney-in-fact		01/10/2017
**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)	In connection with the spin-off (the "Spin-off") of Aptevo Therapeutics Inc. from Emergent BioSolutions Inc. ("Emergent"), on August 1, 2016 the reporting person received a grant of restricted stock units as a result of an adjustment to an existing Emergent restricted stock unit grant held by the reporting person prior to the Spin-off. The restricted stock units vest in March 2017.
(2)	In connection with the spin-off on August 1, 2016 the reporting person received a grant of restricted stock units as a result of an adjustment to an existing Emergent restricted stock unit grant held by the reporting person prior to the spin-off. The restricted stock units vest in March 2017 and March 2018.
(3)	In connection with the spin-off the reporting person received a grant of restricted stock units as a result of an adjustment to an existing Emergent restricted stock unit grant held by the reporting person prior to the spin-off. The restricted stock units vest in March 2017, March 2018 and March 2019.
(4)	The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Abdun-Nabi.
(5)	The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.91 to $32.26, inclusive.
(6)	Represents options to purchase Emergent common stock awarded to the reporting person prior to the Spin-off . In connection with the Spin-off, the number of shares and exercise price of the option was adjusted, to preserve the pre-Spin-off intrinsic value of the existing Emergent option award.
(7)	Consists of an option granted under the company's stock incentive plan as amended and restated prior to the Spin-off.
(8)	The option grant vests in three equal installments on the day prior to the first, second and third anniversary dates of the grant.

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