Shares

21 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q1 2024

May 15, 2024

SELL
$0.44 - $1.22 $135,010 - $374,347
-306,842 Reduced 10.46%
2,625,468 $1.81 Million
Q4 2023

Feb 14, 2024

BUY
$0.23 - $1.74 $480,207 - $3.63 Million
2,087,858 Added 247.24%
2,932,310 $1.5 Million
Q3 2023

Nov 14, 2023

BUY
$1.41 - $2.31 $954,813 - $1.56 Million
677,173 Added 404.82%
844,452 $1.25 Million
Q2 2023

Aug 14, 2023

BUY
$1.5 - $3.04 $174,472 - $353,597
116,315 Added 228.23%
167,279 $269,000
Q1 2023

May 15, 2023

SELL
$2.8 - $5.46 $237,246 - $462,631
-84,731 Reduced 62.44%
50,964 $147,000
Q4 2022

Feb 14, 2023

SELL
$2.85 - $5.18 $1.07 Million - $1.94 Million
-374,474 Reduced 73.4%
135,695 $445,000
Q3 2022

Nov 14, 2022

BUY
$2.85 - $8.73 $1.45 Million - $4.45 Million
510,169 New
510,169 $1.93 Million
Q2 2022

Aug 15, 2022

SELL
$4.69 - $9.84 $156,655 - $328,675
-33,402 Closed
0 $0
Q1 2022

May 16, 2022

BUY
$8.44 - $16.89 $281,912 - $564,159
33,402 New
33,402 $310,000
Q3 2021

Nov 15, 2021

SELL
$11.99 - $17.9 $318,442 - $475,406
-26,559 Closed
0 $0
Q2 2021

Aug 16, 2021

SELL
$12.89 - $16.58 $252,927 - $325,332
-19,622 Reduced 42.49%
26,559 $413,000
Q1 2021

May 17, 2021

BUY
$14.0 - $20.72 $348,488 - $515,762
24,892 Added 116.92%
46,181 $663,000
Q4 2020

Feb 16, 2021

BUY
$12.67 - $26.23 $269,731 - $558,410
21,289 New
21,289 $418,000
Q4 2019

Feb 14, 2020

SELL
$10.89 - $16.79 $122,708 - $189,189
-11,268 Closed
0 $0
Q3 2019

Nov 14, 2019

BUY
$12.03 - $19.94 $135,554 - $224,683
11,268 New
11,268 $159,000
Q2 2019

Aug 14, 2019

SELL
$19.05 - $41.04 $195,986 - $422,219
-10,288 Closed
0 $0
Q1 2019

May 14, 2019

SELL
$28.4 - $41.74 $304,135 - $446,993
-10,709 Reduced 51.0%
10,288 $409,000
Q4 2018

Feb 14, 2019

SELL
$30.9 - $42.97 $18,910 - $26,297
-612 Reduced 2.83%
20,997 $729,000
Q3 2018

Nov 15, 2018

BUY
$35.05 - $43.5 $85,486 - $106,096
2,439 Added 12.72%
21,609 $894,000
Q2 2018

Aug 14, 2018

BUY
$35.15 - $51.45 $415,789 - $608,602
11,829 Added 161.14%
19,170 $704,000
Q1 2018

May 15, 2018

BUY
$18.0 - $48.35 $132,138 - $354,937
7,341 New
7,341 $286,000

Others Institutions Holding ATRA

About Atara Biotherapeutics, Inc.


  • Ticker ATRA
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Biotechnology
  • Shares Outstandng 94,362,304
  • Market Cap $1.08B
  • Description
  • Atara Biotherapeutics, Inc., an off-the-shelf T-cell immunotherapy company, develops treatments for patients with cancer, autoimmune, and viral diseases in the United States. It is developing tabelecleucel, a T-cell immunotherapy that is Phase 3 clinical trials for the treatment of epstein-barr virus (EBV) driven post-transplant lymphoproliferat...
More about ATRA
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