Atara Biotherapeutics (ATRA) SEC Filings https://investors.atarabio.com/sec-filings/all-sec-filings/rss Atara Biotherapeutics (ATRA) - All SEC Filings en-us https://d1io3yog0oux5.cloudfront.net/atarabio/files/theme/images/logo-sm.png Atara Biotherapeutics Logo Equisolve Investor Relations Suite <![CDATA[SCHEDULE 13D/A - General Statement of Acquisition of Beneficial Ownership]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-217389/0001193125-26-217389.pdf Mon, 11 May 26 18:49:34 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-217389/0001193125-26-217389.pdf <![CDATA[4 - Statement of changes in beneficial ownership of securities]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-217380/0001193125-26-217380.pdf Mon, 11 May 26 18:45:27 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-217380/0001193125-26-217380.pdf <![CDATA[4 - Statement of changes in beneficial ownership of securities]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000935836-26-000239/0000935836-26-000239.pdf Mon, 11 May 26 17:34:42 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000935836-26-000239/0000935836-26-000239.pdf <![CDATA[3 - Initial statement of beneficial ownership of securities]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000935836-26-000238/0000935836-26-000238.pdf Mon, 11 May 26 17:34:12 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000935836-26-000238/0000935836-26-000238.pdf <![CDATA[SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000919574-26-002802/0000919574-26-002802.pdf Fri, 08 May 26 16:15:46 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000919574-26-002802/0000919574-26-002802.pdf <![CDATA[144 - Report of proposed sale of securities]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-212781/0001193125-26-212781.pdf Thu, 07 May 26 20:30:27 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-212781/0001193125-26-212781.pdf <![CDATA[SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000935836-26-000230/0000935836-26-000230.pdf Thu, 07 May 26 19:27:14 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000935836-26-000230/0000935836-26-000230.pdf <![CDATA[8-K - Current report]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-210413/0001193125-26-210413.pdf Thu, 07 May 26 08:10:50 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-210413/0001193125-26-210413.pdf <![CDATA[8-K - Current report]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-201397/0001193125-26-201397.pdf Fri, 01 May 26 16:06:43 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-201397/0001193125-26-201397.pdf <![CDATA[DEF 14A - Definitive proxy statements]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-177285/0001193125-26-177285.pdf Fri, 24 Apr 26 16:16:00 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-177285/0001193125-26-177285.pdf