Institutional shares held 85 Million
18.4K calls
51.3K puts
Total value of holdings $33.2M
$7K calls
$20K puts
Market Cap $36.8M
94,362,304 Shares Out.
Institutional ownership 90.1%
# of Institutions 87


Latest Institutional Activity in ATRA

Top Purchases

Q1 2024
Bank Of America Corp Shares Held: 6.58M ($2.57M)
Q1 2024
Citadel Advisors LLC Shares Held: 6.51M ($2.54M)
Q1 2024
Price T Rowe Associates Inc Shares Held: 4.96M ($1.93M)
Q1 2024
Boxer Capital, LLC Shares Held: 4.15M ($1.62M)
Q1 2024
Vestal Point Capital, LP Shares Held: 2.8M ($1.09M)

Top Sells

Q1 2024
Ubs Group Ag Shares Held: 106K ($41.5K)
Q1 2024
Millennium Management LLC Shares Held: 361K ($141K)
Q1 2024
Vanguard Group Inc Shares Held: 5.01M ($1.96M)
Q1 2024
Jpmorgan Chase & CO Shares Held: 1.35M ($527K)
Q1 2024
Morgan Stanley Shares Held: 1.35M ($525K)

About ATRA

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 lymphoproliferative disease, as well as hematologic and solid tumors, including nasopharyngeal carcinoma. The company is also developing next-generation CAR T immunotherapies for patients with hematologic malignancies and solid tumors, including ATA2271 and ATA3271 for mesothelin; and ATA2431 and ATA3219 for B-cell malignancies, as well as ATA188 for the treatment of multiple sclerosis. In addition, it develops ATA368 program for patients with human papillomavirus associated cancers. Atara Biotherapeutics, Inc. has a license agreement with Memorial Sloan Kettering Cancer Center; license, and research and development collaboration agreement with QIMR Berghofer Medical Research Institute; and strategic collaboration with H. Lee Moffitt Cancer Center, as well as Bayer AG for mesothelin-targeted CAR T-cell therapies for solid tumors. The company was incorporated in 2012 and is headquartered in South San Francisco, California.


Insider Transactions at ATRA

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
4.92M Shares
From 13 Insiders
Grant, award, or other acquisition 4.11M shares
Open market or private purchase 817K shares
Sell / Disposition
420K Shares
From 6 Insiders
Open market or private sale 420K shares

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