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<p style="font-family:Times New Roman, Times, serif;font-size:12pt;margin:0pt;text-align:center;"><b>&nbsp;</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:12pt;margin:0pt;text-align:center;"><b>&nbsp;</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:12pt;margin:0pt;text-align:center;"><b>UNITED STATES</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:12pt;margin:0pt;text-align:center;"><b>SECURITIES AND EXCHANGE COMMISSION</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;font-variant:small-caps;margin:0pt;text-align:center;"><b>WASHINGTON, D.C. </b><font style="font-family:Times New Roman, Times, serif;font-size:10pt;"><b>20549</b></font></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;">&nbsp;</p>

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<p>&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:18pt;margin:0pt;text-align:center;"><b>FORM 8-K</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>CURRENT REPORT</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>June 1</b><font style="font-family:Times New Roman, Times, serif;font-size:10pt;"><b>, 2017</b></font></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;">Date of Report (D<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">ate of earliest event reported)</font></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:24pt;margin:0pt;text-align:center;"><b>Windtree Therapeutics, Inc.</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Exact name of registrant as specified in its charter)</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>Delaware</b></p>
			</td>
			<td style="vertical-align:top;width:34%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>000-26422</b></p>
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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>94-3171943</b></p>
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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;">(State or other jurisdiction of incorporation)</p>
			</td>
			<td style="vertical-align:top;width:34%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Commission File Number)</p>
			</td>
			<td style="vertical-align:top;width:33%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;">(IRS Employer Identification Number)</p>
			</td>
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</table>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>2600 Kelly Road, Suite 100</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>Warrington, Pennsylvania 18976</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Address of principal executive offices)</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>(215) 488-9300</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Registrant&#39;s telephone number, including area code)</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Former name or former address, if changed since last report)</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">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>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#61551;</p>
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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</p>
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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#61551;</p>
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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</p>
			</td>
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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#61551;</p>
			</td>
			<td style="vertical-align:top;width:96.1%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</p>
			</td>
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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#61551;</p>
			</td>
			<td style="vertical-align:top;width:96.1%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</p>
			</td>
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<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;">&nbsp;</p>

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<p>&nbsp;</p>

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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Item 8.01.</b></p>
			</td>
			<td style="vertical-align:top;width:84.6%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Other Events.</b></p>
			</td>
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</table>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:36pt;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:36pt;"><font style="font-family:Times New Roman, Times, serif;font-size:10pt;">On June 1, 2017, Windtree Therapeutics, Inc. (the &ldquo;Company&rdquo;) issued a press release announcing the completion of enrollment in the Company&rsquo;s AEROSURF</font><font style="font-size:7pt;">&reg; </font><font style="font-family:Times New Roman, Times, serif;font-size:10pt;">phase 2b clinical trial evaluating aerosolized KL</font><font style="font-size:7pt;">4</font><font style="font-family:Times New Roman, Times, serif;font-size:10pt;"> surfactant for the treatment of respiratory distress syndrome (RDS) in premature infants, 28 to 32 week gestational age, receiving nasal continuous positive airway pressure (nCPAP) for RDS, a copy of which is attached as Exhibit 99.1 to this Current Report on Form 8-K. In addition, t</font>he Company reaffirms its plan to announce top-line results for the trial in July 2017.</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Item 9.01.</b></p>
			</td>
			<td style="vertical-align:top;width:90.4%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:27pt;margin-right:0pt;margin-top:0pt;text-align:left;"><b>Financial Statements and Exhibits.</b></p>
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<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:0pt;margin-right:58pt;margin-top:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:top;width:9.4%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">(d)</p>
			</td>
			<td style="vertical-align:top;width:76.5%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">Exhibits</p>
			</td>
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			<td style="vertical-align:top;width:14.1%;">&nbsp;</td>
			<td style="vertical-align:top;width:9.4%;">&nbsp;</td>
			<td style="vertical-align:top;width:76.5%;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align:top;width:14.1%;">&nbsp;</td>
			<td style="vertical-align:top;width:9.4%;">
			<p style="background-color:#FFFFFF;font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">99.1</p>
			</td>
			<td style="vertical-align:top;width:76.5%;">
			<p style="background-color:#FFFFFF;font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">Press release dated <font style="font-family:Times New Roman, Times, serif;font-size:10pt;">June 1, 2017</font></p>
			</td>
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</table>

<p style="background-color:#FFFFFF;font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Cautionary Note Regarding Forward-looking Statements:</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;text-indent:36pt;"><font style="font-family:Times New Roman, Times, serif;font-size:10pt;">To the extent that statements in this Current Report on Form 8-K are not strictly historical, including statements as to business strategy, outlook, objectives, future milestones, plans, intentions, goals, future financial conditions, future collaboration agreements, the success of the Company&rsquo;s product development, cash flows, future revenues, the timing of planned clinical trials or otherwise as to future events, such statements are forward-looking, and are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. The forward-looking statements contained in this Current Report are subject to certain risks and uncertainties that could cause actual results to differ materially from the statements made. Such risks and others are further described in the Company&#39;s filings with the Securities and Exchange Commission including the most recent reports on Forms 10-K, 10-Q and 8-K, and any amendments thereto.&nbsp; Any forward-looking statement made by the Company in this Current Report on Form 8-K is based only on information currently available to the Company and speaks only as of the date on which it is made. The Company undertakes no obligation to publicly update any forward-looking statement, whether written or oral, that may be made from time to time, whether as a result of new information, future developments or otherwise.</font></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>SIGNATURES</b></p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family: Times New Roman, Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left; text-indent: 36pt;">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>

<p style="font-family: Times New Roman, Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family: Times New Roman, Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&nbsp;</p>

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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">&nbsp;</font></p>
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			<td style="vertical-align:top;width:5.7%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">&nbsp;</font></p>
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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">&nbsp;</font></p>
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			<td style="vertical-align:top;width:10.7%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">&nbsp;</font></p>
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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">&nbsp;</font></p>
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			<td style="vertical-align:top;width:5.7%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">By</p>
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			<td style="vertical-align:top;border-bottom:solid 1px #000000;;width:33.8%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">/s/ John Tattory</p>
			</td>
			<td style="vertical-align:top;width:10.7%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">&nbsp;</font></p>
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			<td style="vertical-align:top;width:49.8%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">&nbsp;</font></p>
			</td>
			<td style="vertical-align:top;width:5.7%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">Name:</p>
			</td>
			<td style="vertical-align:top;width:33.8%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">John Tattory</p>
			</td>
			<td style="vertical-align:top;width:10.7%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">&nbsp;</font></p>
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			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">&nbsp;</font></p>
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			<td style="vertical-align:top;width:5.7%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">Title:</p>
			</td>
			<td style="vertical-align:top;width:33.8%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">Senior Vice President and<br>
			<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">Chief Financial Officer</font></p>
			</td>
			<td style="vertical-align:top;width:10.7%;">
			<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;<font style="font-family:Times New Roman, Times, serif;font-size:10pt;">&nbsp;</font></p>
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<p style="font-family: Times New Roman, Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family: Times New Roman, Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&nbsp;</p>

<p style="font-family:Times New Roman, Times, serif;font-size:10pt;margin:0pt;text-align:left;">Date: <font style="font-family:Times New Roman, Times, serif;font-size:10pt;">June 2, 2017</font></p>

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wint20170602_8k.htm
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
June 1
, 2017
Date of Report (D
ate of earliest event reported)
Windtree Therapeutics, Inc.
(Exact name of registrant as specified in its charter)
Delaware
000-26422
94-3171943
(State or other jurisdiction of incorporation)
(Commission File Number)
(IRS Employer Identification Number)
2600 Kelly Road, Suite 100
Warrington, Pennsylvania 18976
(Address of principal executive offices)
(215) 488-9300
(Registrant's telephone number, including area code)
(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:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
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Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
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Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
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Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 8.01.
Other Events.
On June 1, 2017, Windtree Therapeutics, Inc. (the "Company") issued a press release announcing the completion of enrollment in the Company's AEROSURF
®
phase 2b clinical trial evaluating aerosolized KL
4
surfactant for the treatment of respiratory distress syndrome (RDS) in premature infants, 28 to 32 week gestational age, receiving nasal continuous positive airway pressure (nCPAP) for RDS, a copy of which is attached as Exhibit 99.1 to this Current Report on Form 8-K. In addition, t
he Company reaffirms its plan to announce top-line results for the trial in July 2017.
Item 9.01.
Financial Statements and Exhibits.
(d)
Exhibits
99.1
Press release dated
June 1, 2017
Cautionary Note Regarding Forward-looking Statements:
To the extent that statements in this Current Report on Form 8-K are not strictly historical, including statements as to business strategy, outlook, objectives, future milestones, plans, intentions, goals, future financial conditions, future collaboration agreements, the success of the Company's product development, cash flows, future revenues, the timing of planned clinical trials or otherwise as to future events, such statements are forward-looking, and are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. The forward-looking statements contained in this Current Report are subject to certain risks and uncertainties that could cause actual results to differ materially from the statements made. Such risks and others are further described in the Company's filings with the Securities and Exchange Commission including the most recent reports on Forms 10-K, 10-Q and 8-K, and any amendments thereto.  Any forward-looking statement made by the Company in this Current Report on Form 8-K is based only on information currently available to the Company and speaks only as of the date on which it is made. The Company undertakes no obligation to publicly update any forward-looking statement, whether written or oral, that may be made from time to time, whether as a result of new information, future developments or otherwise.
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.
By
/s/ John Tattory
Name:
John Tattory
Title:
Senior Vice President and
Chief Financial Officer
Date:
June 2, 2017