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[4 - Statement of changes in beneficial ownership of securities]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000905148-26-002571/0000905148-26-002571.pdf Wed, 20 May 26 17:27:32 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000905148-26-002571/0000905148-26-002571.pdf <![CDATA[4 - Statement of changes in beneficial ownership of securities]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000905148-26-002570/0000905148-26-002570.pdf Wed, 20 May 26 17:26:35 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000905148-26-002570/0000905148-26-002570.pdf <![CDATA[144 - Report of proposed sale of securities]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000905148-26-002506/0000905148-26-002506.pdf Mon, 18 May 26 16:45:52 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000905148-26-002506/0000905148-26-002506.pdf <![CDATA[144 - Report of proposed sale of securities]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000905148-26-002507/0000905148-26-002507.pdf Mon, 18 May 26 16:45:45 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000905148-26-002507/0000905148-26-002507.pdf <![CDATA[SCHEDULE 13D/A - General Statement of Acquisition of Beneficial Ownership]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001104659-26-061506/0001104659-26-061506.pdf Thu, 14 May 26 21:00:51 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001104659-26-061506/0001104659-26-061506.pdf <![CDATA[SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000919574-26-002914/0000919574-26-002914.pdf Wed, 13 May 26 09:06:41 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0000919574-26-002914/0000919574-26-002914.pdf <![CDATA[424B5 - Prospectus [Rule 424(b)(5)]]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-219518/0001193125-26-219518.pdf Tue, 12 May 26 16:32:04 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-219518/0001193125-26-219518.pdf <![CDATA[10-Q - Quarterly report [Sections 13 or 15(d)]]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-219482/0001193125-26-219482.pdf Tue, 12 May 26 16:27:28 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-219482/0001193125-26-219482.pdf <![CDATA[8-K - Current report]]> https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-219420/0001193125-26-219420.pdf Tue, 12 May 26 16:21:32 -0400 https://investors.atarabio.com/sec-filings/all-sec-filings/content/0001193125-26-219420/0001193125-26-219420.pdf <![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