SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* SOFINNOVA CAPITAL VI FCPR (Last) (First) (Middle) 17, RUE DE SERENE (Street) PARIS I0 75008 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol BioAmber Inc. [ BIOA.U ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 05/14/2013
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

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	05/14/2013		P		880,000(1)	A	(1)	3,802,780	D(2)

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 Securities Underlying Derivative Security (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: 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
Common Stock Warrants (right to buy)	(1)	05/14/2013		P		880,000		08/08/2013	05/09/2017	Common Stock	440,000(1)	$10(1)	880,000(1)	D(2)

1. Name and Address of Reporting Person* SOFINNOVA CAPITAL VI FCPR (Last) (First) (Middle) 17, RUE DE SERENE (Street) PARIS I0 75008 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Sofinnova Partners SAS (Last) (First) (Middle) 17, RUE DE SERENE (Street) PARIS I0 75008 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. In connection with BioAmber Inc.'s initial public offering, 880,000 units were purchased on 5/14/2013 at a price of $10.00 per unit. Each unit consists of one share of Common Stock and one warrant to purchase half of one share of Common Stock. The units currently trade on the NYSE. The Common Stock and warrants comprising the units will begin trading separately on June 10, 2013, at which time trading of the units will be suspended and the units will be de-listed. Each warrant will be exercisable during the period commencing on August 8, 2013 and ending at 5:30 p.m. on May 9, 2017 at an exercise price of $11.00 per whole share of Common Stock.

2. Sofinnova Partners SAS is the managing company of Sofinnova Capital VI FCPR and disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any.

	/s/ Jean-Francois Huc, attorney-in-fact to Sofinnova Capital VI FCPR	05/16/2013
	/s/ Jean-Francois Huc, attorney-in-fact to Sofinnova Partners SAS	05/16/2013
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
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