Shares

48 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q1 2023

May 15, 2023

SELL
$2.8 - $5.46 $1,831 - $3,570
-654 Reduced 11.24%
5,162 $14,000
Q4 2022

Jun 14, 2023

BUY
$2.85 - $5.18 $1,863 - $3,387
654 Added 12.67%
5,816 $19.1 Million
Q4 2022

Mar 30, 2023

BUY
$2.85 - $5.18 $7,398 - $13,447
2,596 Added 80.62%
5,816 $19,000
Q4 2022

Feb 15, 2023

BUY
$2.85 - $5.18 $7,398 - $13,447
2,596 Added 80.62%
5,816 $19,000
Q3 2022

Jun 14, 2023

SELL
$2.85 - $8.73 $5,534 - $16,953
-1,942 Reduced 37.62%
3,220 $12.2 Million
Q3 2022

Mar 30, 2023

SELL
$2.85 - $8.73 $6,971 - $21,353
-2,446 Reduced 43.17%
3,220 $12,000
Q3 2022

Nov 14, 2022

SELL
$2.85 - $8.73 $6,971 - $21,353
-2,446 Reduced 43.17%
3,220 $12,000
Q2 2022

Jun 20, 2023

BUY
$4.69 - $9.84 $2,363 - $4,959
504 Added 9.76%
5,666 $44,000
Q1 2022

Jun 20, 2023

BUY
$8.44 - $16.89 $4,253 - $8,512
504 Added 9.76%
5,666 $52,000
Q1 2022

Mar 30, 2023

SELL
$8.44 - $16.89 $142,889 - $285,947
-16,930 Reduced 74.92%
5,666 $52,000
Q1 2022

May 12, 2022

SELL
$8.44 - $16.89 $142,889 - $285,947
-16,930 Reduced 74.92%
5,666 $53,000
Q4 2021

Jun 21, 2023

BUY
$14.7 - $19.89 $256,279 - $346,762
17,434 Added 337.74%
22,596 $356,000
Q3 2021

Jun 21, 2023

BUY
$11.99 - $17.9 $209,033 - $312,068
17,434 Added 337.74%
22,596 $404,000
Q2 2021

Jun 21, 2023

BUY
$12.89 - $16.58 $224,724 - $289,055
17,434 Added 337.74%
22,596 $351,000
Q2 2021

Mar 30, 2023

BUY
$12.89 - $16.58 $29,105 - $37,437
2,258 Added 11.1%
22,596 $351,000
Q2 2021

Aug 16, 2021

BUY
$12.89 - $16.58 $291,004 - $374,310
22,576 Added 112880.0%
22,596 $351,000
Q1 2021

Jun 26, 2023

BUY
$14.0 - $20.72 $212,464 - $314,446
15,176 Added 293.99%
20,338 $292 Million
Q1 2021

Mar 30, 2023

SELL
$14.0 - $20.72 $14,070 - $20,823
-1,005 Reduced 4.71%
20,338 $292,000
Q1 2021

May 14, 2021

SELL
$14.0 - $20.72 $298,522 - $441,812
-21,323 Reduced 99.91%
20 $292,000
Q4 2020

Jun 22, 2023

BUY
$12.67 - $26.23 $205,013 - $424,427
16,181 Added 313.46%
21,343 $418,000
Q3 2020

Jun 26, 2023

BUY
$11.92 - $15.87 $192,877 - $256,792
16,181 Added 313.46%
21,343 $276,000
Q3 2020

Mar 30, 2023

BUY
$11.92 - $15.87 $31,897 - $42,468
2,676 Added 14.34%
21,343 $276,000
Q3 2020

Nov 13, 2020

BUY
$11.92 - $15.87 $31,897 - $42,468
2,676 Added 14.34%
21,343 $277,000
Q2 2020

Jun 26, 2023

BUY
$7.53 - $14.93 $101,692 - $201,629
13,505 Added 261.62%
18,667 $271,000
Q2 2020

Mar 30, 2023

BUY
$7.53 - $14.93 $25,617 - $50,791
3,402 Added 22.29%
18,667 $271,000
Q2 2020

Aug 14, 2020

BUY
$7.53 - $14.93 $25,617 - $50,791
3,402 Added 22.29%
18,667 $272,000
Q1 2020

Jul 12, 2023

BUY
$5.69 - $17.78 $57,486 - $179,631
10,103 Added 195.72%
15,265 $129,000
Q1 2020

Mar 30, 2023

BUY
$5.69 - $17.78 $3,248 - $10,152
571 Added 3.89%
15,265 $129,000
Q1 2020

May 15, 2020

BUY
$5.69 - $17.78 $3,248 - $10,152
571 Added 3.89%
15,265 $130,000
Q4 2019

Jul 12, 2023

BUY
$10.89 - $16.79 $103,803 - $160,042
9,532 Added 184.66%
14,694 $242,000
Q4 2019

Mar 30, 2023

SELL
$10.89 - $16.79 $10,389 - $16,017
-954 Reduced 6.1%
14,694 $242,000
Q4 2019

Feb 14, 2020

SELL
$10.89 - $16.79 $10,389 - $16,017
-954 Reduced 6.1%
14,694 $242,000
Q3 2019

Jul 12, 2023

BUY
$12.03 - $19.94 $126,146 - $209,090
10,486 Added 203.14%
15,648 $220,000
Q3 2019

Mar 30, 2023

BUY
$12.03 - $19.94 $27,753 - $46,001
2,307 Added 17.29%
15,648 $220,000
Q3 2019

Nov 14, 2019

BUY
$12.03 - $19.94 $27,753 - $46,001
2,307 Added 17.29%
15,648 $221,000
Q2 2019

Jul 12, 2023

BUY
$19.05 - $41.04 $155,809 - $335,666
8,179 Added 158.45%
13,341 $268,000
Q1 2019

Jul 13, 2023

BUY
$28.4 - $41.74 $232,283 - $341,391
8,179 Added 158.45%
13,341 $530,000
Q1 2019

Mar 30, 2023

BUY
$28.4 - $41.74 $213,710 - $314,093
7,525 Added 129.38%
13,341 $530,000
Q1 2019

May 16, 2019

SELL
$28.4 - $41.74 $80,826 - $118,792
-2,846 Reduced 17.58%
13,341 $530,000
Q1 2019

May 15, 2019

BUY
$28.4 - $41.74 $69,125 - $101,595
2,434 Added 17.7%
16,187 $527,000
Q4 2018

Jul 13, 2023

BUY
$30.9 - $42.97 $265,461 - $369,155
8,591 Added 166.43%
13,753 $477,000
Q4 2018

Feb 14, 2019

BUY
$30.9 - $42.97 $334,956 - $465,794
10,840 Added 372.12%
13,753 $478,000
Q3 2018

Jul 13, 2023

BUY
$35.05 - $43.5 $285,342 - $354,133
8,141 Added 157.71%
13,303 $550 Million
Q3 2018

Nov 14, 2018

SELL
$35.05 - $43.5 $364,169 - $451,965
-10,390 Reduced 78.1%
2,913 $120,000
Q2 2018

Aug 15, 2018

BUY
$35.15 - $51.45 $95,432 - $139,686
2,715 Added 25.64%
13,303 $0
Q1 2018

May 15, 2018

BUY
$18.0 - $48.35 $23,490 - $63,096
1,305 Added 14.06%
10,588 $0
Q4 2017

Feb 15, 2018

SELL
$13.2 - $18.1 $111,315 - $152,637
-8,433 Reduced 47.6%
9,283 $168,000
Q2 2017

Aug 14, 2017

BUY
N/A
17,716
17,716 $248,000

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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