902 filings
DEFA14A
ATRA
Atara Biotherapeutics Inc
26 Apr 24
Additional proxy soliciting materials
4:20pm
DEF 14A
ATRA
Atara Biotherapeutics Inc
Definitive proxy
26 Apr 24
4:15pm
PRE 14A
ATRA
Atara Biotherapeutics Inc
Preliminary proxy
12 Apr 24
4:15pm
4
ATRA
Atara Biotherapeutics Inc
2 Apr 24
Atara Biotherapeutics / Matthew K Fust ownership change
6:13pm
4
ATRA
Atara Biotherapeutics Inc
2 Apr 24
Atara Biotherapeutics / WILLIAM K HEIDEN ownership change
6:12pm
4
Maria Grazia Roncarolo
2 Apr 24
Atara Biotherapeutics / Maria Grazia Roncarolo ownership change
6:12pm
4
ATRA
Atara Biotherapeutics Inc
2 Apr 24
Atara Biotherapeutics / Carol Giltner Gallagher ownership change
6:12pm
4
Ameet Mallik
2 Apr 24
Atara Biotherapeutics / AMEET MALLIK ownership change
6:11pm
8-K
ATRA
Atara Biotherapeutics Inc
29 Mar 24
Departure of Directors or Certain Officers
4:30pm
10-K
2023 FY
ATRA
Atara Biotherapeutics Inc
Annual report
28 Mar 24
8:40am
8-K
ATRA
Atara Biotherapeutics Inc
28 Mar 24
Atara Biotherapeutics Announces Fourth Quarter and Full Year 2023 Financial Results and Operational Progress
8:35am
SC 13G
Citadel Advisors LLC
18 Mar 24
Atara Biotherapeutics / CITADEL ADVISORS ownership change
4:13pm
4
Pascal Touchon
6 Mar 24
Atara Biotherapeutics / Pascal Touchon ownership change
6:19pm
4
AnhCo Nguyen
6 Mar 24
Atara Biotherapeutics / AnhCo Nguyen ownership change
6:18pm
4
ATRA
Atara Biotherapeutics Inc
6 Mar 24
Atara Biotherapeutics / Amar Murugan ownership change
6:18pm
4
ATRA
Atara Biotherapeutics Inc
6 Mar 24
Atara Biotherapeutics / Eric J Hyllengren ownership change
6:17pm
4
ATRA
Atara Biotherapeutics Inc
6 Mar 24
Atara Biotherapeutics / Jill Henrich ownership change
6:16pm
144
Pascal Touchon
4 Mar 24
Notice of proposed sale of securities
8:21pm
144
Jill Henrich
4 Mar 24
Notice of proposed sale of securities
8:19pm
144
Eric J Hyllengren
4 Mar 24
Notice of proposed sale of securities
8:18pm