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<p style="margin-top:12pt;border-bottom:Double 2.25pt;padding-bottom:1pt;margin-bottom:0pt;text-indent:0%;font-size:4pt;">&nbsp;</p>
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<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:18pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">FORM 8-K</p>
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<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:12pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">CURRENT REPORT</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:12pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934</p>
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<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Date of Report (Date of Earliest Event Reported): May 6, 2015</p>
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<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:24pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">BIOAMBER INC.</p>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Delaware</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">001-35905</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">98-0601045</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(State or other jurisdiction</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">of incorporation)</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(Commission File Number)</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(I.R.S. Employer</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Identification No.)</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#;font-size:8pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">1250 Rene Levesque West, Suite 4110</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">3850 Annapolis Lane North, Suite 180</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Montreal, Quebec, Canada H3B 4W8</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Plymouth, Minnesota 55447</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(Address of principal executive offices)</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:12pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Registrant's telephone number, including area code (514) 844-8000</p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Not Applicable</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(Former name or former address, if changed since last report)</p>
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<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</p>
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<p style="margin-top:6pt;margin-bottom:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</p></td></tr></table></div>
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<p style="margin-top:6pt;margin-bottom:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</p></td></tr></table></div>
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<p style="margin-top:6pt;margin-bottom:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</p></td></tr></table></div>
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<p style="margin-top:6pt;margin-bottom:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</p></td></tr></table></div>
<p style="border-bottom:Double 2.25pt;padding-bottom:1pt;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:4pt;">&nbsp;</p>
<p style="margin-bottom:10pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"><br></p>

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<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Item&#160;8.01 Other Events </p>
<p style="margin-bottom:0pt;margin-top:6pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;text-indent:6.67%;">As previously disclosed in our Form 10-Q for the fiscal quarter ended March 31, 2015 filed on May 11, 2015, on May 6, 2015, BioAmber Inc. (&#8220;BioAmber&#8221; or the &#8220;Company&#8221;) completed the initial closingof a follow-on public offering and issued 3,900,000 shares of common stock, at an offering price to the public of $9.00 per share. The completion of this follow-on public offering at a public offering price of $9.00 per share triggered an adjustment to the exercise price of the outstanding warrants to purchase common stock issued in the Company&#8217;s initial public offering. The exercise price of such warrants was reduced from $11.00 per whole share of common stock to $9.00 per whole share of common stock, pursuant to the terms of such warrants.</p>

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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">SIGNATURES</p>
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</p>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Date: May 19, 2015</p></td>
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{"company-data": {"conformed-name": "BioAmber Inc.", "cik": "0001534287", "assigned-sic": "2860", "irs-number": "980601045", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-35905", "film-number": "15877450"}, "business-address": {"street1": "3850 ANNAPOLIS LANE NORTH, SUITE 180", "city": "PLYMOUTH", "state": "MN", "zip": "55447-5476", "phone": "612-747-4423"}, "mail-address": {"street1": "3850 ANNAPOLIS LANE NORTH, SUITE 180", "city": "PLYMOUTH", "state": "MN", "zip": "55447-5476"}}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934
Date of Report (Date of Earliest Event Reported): May 6, 2015
BIOAMBER INC.
(Exact name of registrant as specified in its charter)
Delaware
001-35905
98-0601045
(State or other jurisdiction
of incorporation)
(Commission File Number)
(I.R.S. Employer
Identification No.)
1250 Rene Levesque West, Suite 4110
3850 Annapolis Lane North, Suite 180
Montreal, Quebec, Canada H3B 4W8
Plymouth, Minnesota 55447
(Address of principal executive offices)
Registrant's telephone number, including area code (514) 844-8000
Not Applicable
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
o
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 8.01 Other Events
As previously disclosed in our Form 10-Q for the fiscal quarter ended March 31, 2015 filed on May 11, 2015, on May 6, 2015, BioAmber Inc. ("BioAmber" or the "Company") completed the initial closingof a follow-on public offering and issued 3,900,000 shares of common stock, at an offering price to the public of $9.00 per share. The completion of this follow-on public offering at a public offering price of $9.00 per share triggered an adjustment to the exercise price of the outstanding warrants to purchase common stock issued in the Company's initial public offering. The exercise price of such warrants was reduced from $11.00 per whole share of common stock to $9.00 per whole share of common stock, pursuant to the terms of such warrants.
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: May 19, 2015
BIOAMBER INC.
By:
/s/Jean-François Huc
Jean-François Huc
President, Chief Executive Officer and Director