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<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:14pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">CURRENT REPORT </p>
<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;">Pursuant to Section&#160;13 or 15(d) of </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;">the Securities Exchange Act of 1934 </p>
<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;">Date of Report (Date of earliest event reported): September 18, 2015 </p>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:24pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Atara Biotherapeutics, 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;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(IRS Employer Identification No.)</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;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(Zip Code)</p></td>
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<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;">Registrant&#8217;s Telephone Number, Including Area Code: (650) 278-8930 </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 (see General Instructions A.2. below): </p>
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<p style="margin-top:12pt;margin-bottom:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-size:10pt;"><font style="font-family:Times New Roman;">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) </font></p></td></tr></table></div>
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<p style="margin-bottom:0pt;margin-top:0pt;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Item 5.02.</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;font-weight:bold;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;"><a name="_AEIOULastRenderedPageBreakAEIOU2"></a><font style="font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;"></font><font style="font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of </font><font style="font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Certain Officers.</font></p></td></tr></table></div>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">On September 18, 2015, Eckard Weber, M.D. notified Atara Biotherapeutics, Inc. (the &#8220;Company&#8221;) of his decision to resign as a member of the Company&#8217;s Board of Directors, effective immediately.&nbsp;&nbsp;Dr. Weber is a partner with Domain Associates, LLC, a private venture capital management firm.&nbsp;&nbsp;At the time of his resignation, Dr. Weber was a member of the Compensation Committee of the Board of Directors.&nbsp;&nbsp;Dr. Weber&#8217;s decision to resign was not a result of any disagreement with the Company on any matter relating to the Company&#8217;s operations, policies or practices<font style="color:#1F497D;font-size:11pt;font-family:Calibri;">.</font> </p>
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<p style="text-align:center;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;"><a name="_AEIOULastRenderedPageBreakAEIOU3"></a><font style="font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">SIGNATURES </font></p>
<p style="text-align:justify;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 thereunto duly authorized. </p>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> /s/ John F. McGrath, Jr.</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">John F. McGrath, Jr.</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Chief Financial Officer</p></td>
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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;">Date:&nbsp;&nbsp; September 21, 2015 </p>
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atra-8k_20150909.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
Date of Report (Date of earliest event reported): September 18, 2015
Atara Biotherapeutics, Inc.
(Exact name of Registrant as Specified in Its Charter)
Delaware
001-36548
46-0920988
(State or Other Jurisdiction
of Incorporation)
(Commission
File Number)
(IRS Employer Identification No.)
701 Gateway Boulevard, Suite 200
South San Francisco, CA
94080
(Address of Principal Executive Offices)
(Zip Code)
Registrant's Telephone Number, Including Area Code: (650) 278-8930
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 (see General Instructions A.2. below):
¨
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
¨
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
¨
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
¨
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 5.02.
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of
Certain Officers.
On September 18, 2015, Eckard Weber, M.D. notified Atara Biotherapeutics, Inc. (the "Company") of his decision to resign as a member of the Company's Board of Directors, effective immediately.  Dr. Weber is a partner with Domain Associates, LLC, a private venture capital management firm.  At the time of his resignation, Dr. Weber was a member of the Compensation Committee of the Board of Directors.  Dr. Weber's decision to resign was not a result of any disagreement with the Company on any matter relating to the Company's operations, policies or practices
.
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 thereunto duly authorized.
Atara Biotherapeutics, Inc.
By:
/s/ John F. McGrath, Jr.
John F. McGrath, Jr.
Chief Financial Officer
Date:   September 21, 2015