Free Trial

Atara Biotherapeutics (ATRA) SEC Filings & 10K Form

Atara Biotherapeutics logo
$8.82 +0.11 (+1.26%)
Closing price 04:00 PM Eastern
Extended Trading
$8.80 -0.03 (-0.28%)
As of 04:04 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.

Recent Atara Biotherapeutics SEC Filings

DateFilerForm TypeView
06/12/2025
7:38 PM
Atara Biotherapeutics (Issuer)
MALLIK AMEET (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2025
7:39 PM
Atara Biotherapeutics (Issuer)
Roncarolo Maria Grazia (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2025
7:39 PM
Atara Biotherapeutics (Issuer)
Touchon Pascal (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2025
7:39 PM
Atara Biotherapeutics (Issuer)
Fust Matthew K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2025
7:39 PM
Atara Biotherapeutics (Issuer)
Gallagher Carol Giltner (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2025
7:36 PM
Atara Biotherapeutics (Issuer)
HEIDEN WILLIAM K (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/11/2025
3:15 PM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/23/2025
3:05 PM
Atara Biotherapeutics (Subject)
Redmile Group, LLC (Filed by)
Form SCHEDULE 13D
05/21/2025
5:00 PM
Atara Biotherapeutics (Subject)
Panacea Innovation Ltd (Filed by)
Form SCHEDULE 13D
05/21/2025
5:00 PM
Atara Biotherapeutics (Issuer)
Huang James (Reporting)
Panacea Innovation Ltd (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
05/16/2025
6:27 PM
Atara Biotherapeutics (Subject)
Grant-Huerta Yanina (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/16/2025
6:32 PM
Atara Biotherapeutics (Subject)
Nguyen AnhCo (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/16/2025
5:26 PM
Adiumentum Capital Fund I GP LLC (Reporting)
Adiumentum Capital Fund I LP (Reporting)
Atara Biotherapeutics (Issuer)
Ciongoli Gregory Austin (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
05/16/2025
5:28 PM
Adiumentum Capital Fund I LP (Filed by)
Atara Biotherapeutics (Subject)
Form SCHEDULE 13D/A
05/16/2025
4:26 PM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/15/2025
8:00 PM
Atara Biotherapeutics (Subject)
Redmile Group, LLC (Filed by)
Form SCHEDULE 13G/A
05/15/2025
7:41 AM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/15/2025
7:45 AM
Atara Biotherapeutics (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
04/28/2025
3:15 PM
Atara Biotherapeutics (Filer)
Form DEF 14A
04/10/2025
6:14 PM
Atara Biotherapeutics (Issuer)
Grant-Huerta Yanina (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
04/02/2025
6:54 PM
Atara Biotherapeutics (Issuer)
Hyllengren Eric J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/05/2025
4:16 PM
Atara Biotherapeutics (Issuer)
Henrich Jill (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/05/2025
4:17 PM
Atara Biotherapeutics (Issuer)
Hyllengren Eric J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/05/2025
4:17 PM
Atara Biotherapeutics (Issuer)
Nguyen AnhCo (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2025
5:29 PM
Atara Biotherapeutics (Subject)
Hyllengren Eric J (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/03/2025
5:30 PM
Atara Biotherapeutics (Subject)
Nguyen AnhCo (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/03/2025
5:27 PM
Atara Biotherapeutics (Subject)
Henrich Jill (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/06/2025
5:34 PM
Atara Biotherapeutics (Subject)
Panacea Innovation Ltd (Filed by)
Form SCHEDULE 13G
01/29/2025
3:52 PM
Atara Biotherapeutics (Issuer)
Hyllengren Eric J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/27/2025
3:30 PM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/21/2025
6:36 AM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/16/2025
3:05 PM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/23/2024
3:00 PM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/20/2024
5:04 PM
Atara Biotherapeutics (Issuer)
Nguyen AnhCo (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
11/20/2024
5:04 PM
Atara Biotherapeutics (Issuer)
Hyllengren Eric J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
11/20/2024
5:05 PM
Atara Biotherapeutics (Issuer)
Henrich Jill (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
11/18/2024
4:54 PM
Atara Biotherapeutics (Subject)
Henrich Jill (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/18/2024
4:55 PM
Atara Biotherapeutics (Subject)
Hyllengren Eric J (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/18/2024
4:56 PM
Atara Biotherapeutics (Subject)
Murugan Amar (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/18/2024
4:58 PM
Atara Biotherapeutics (Subject)
Nguyen AnhCo (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/14/2024
5:10 PM
Atara Biotherapeutics (Subject)
EcoR1 Capital, LLC (Filed by)
Form SC 13G/A
Elon’s BIGGEST warning yet? (Ad)

Tesla's About to Prove Everyone Wrong... Again Back in 2018, when Jeff Brown told everyone to buy Tesla… The "experts" said Elon was finished and Tesla was headed for bankruptcy. Now they're saying the same thing, but Jeff has uncovered Tesla's next breakthrough.

Click here to see why Tesla's about to prove everyone wrong... again.
11/12/2024
12:29 PM
Atara Biotherapeutics (Subject)
VANGUARD GROUP INC (Filed by)
Form SC 13G/A
11/04/2024
10:24 AM
Atara Biotherapeutics (Subject)
VANGUARD GROUP INC (Filed by)
Form SC 13G/A
10/15/2024
3:05 PM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/11/2024
4:03 PM
Atara Biotherapeutics (Issuer)
Nguyen AnhCo (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/05/2024
5:42 PM
Adiumentum Capital Fund I GP LLC (Reporting)
Adiumentum Capital Fund I LP (Reporting)
Atara Biotherapeutics (Issuer)
Ciongoli Gregory Austin (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
09/05/2024
3:07 PM
Adiumentum Capital Fund I LP (Filed by)
Atara Biotherapeutics (Subject)
Form SC 13D/A
09/04/2024
3:42 PM
Atara Biotherapeutics (Filer)
Form 424B5
09/03/2024
4:05 PM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/20/2024
5:26 PM
Atara Biotherapeutics (Issuer)
Henrich Jill (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
08/20/2024
5:27 PM
Atara Biotherapeutics (Issuer)
Hyllengren Eric J (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
08/20/2024
5:27 PM
Atara Biotherapeutics (Issuer)
Murugan Amar (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
08/20/2024
5:27 PM
Atara Biotherapeutics (Issuer)
Nguyen AnhCo (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
08/20/2024
5:27 PM
Atara Biotherapeutics (Issuer)
Touchon Pascal (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
08/14/2024
5:00 PM
Atara Biotherapeutics (Issuer)
Touchon Pascal (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
08/12/2024
4:10 PM
Atara Biotherapeutics (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
08/12/2024
4:05 PM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/17/2024
3:16 PM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/08/2024
3:32 PM
Atara Biotherapeutics (Subject)
BlackRock Inc. (Filed by)
Form SC 13G/A
06/20/2024
4:04 PM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/17/2024
7:30 AM
Atara Biotherapeutics (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
(Data available from 1/1/2016 forward)


Related Companies and Tools


This page (NASDAQ:ATRA) was last updated on 6/13/2025 by MarketBeat.com Staff
From Our Partners