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Atara Biotherapeutics, Inc.

ATRA
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001604464

In the last 90 days, Atara Biotherapeutics, Inc. insiders filed 1 open-market purchase and 1 sale; 36 institutions reported holding it in 13F filings for Q2 2026, worth $51.3M in total; no superinvestor holds it.

Q2 2023 vs. Q1 2023

How the institutions holding Atara Biotherapeutics, Inc. changed between Q1 2023 and Q2 2023.

All holders in Q2 2023All holders in Q1 2023

13F holders of ATRA: Q1 2023 compared with Q2 2023
MeasureQ1 2023Q2 2023Change
Holders125118−7
Shares102.7M90.5M−12.2M (−11.9%)
Value$297.8M$145.8M−$152.0M (−51.0%)

New holders (22)

Institutions that held Atara Biotherapeutics, Inc. at the end of Q2 2023 but not at the end of Q1 2023.

Institutions new to ATRA in Q2 2023
InstitutionSharesValue% of portfolio
683 Capital Management, LLC1,000,000$1.61M0.16%
Acadian Asset Management LLC704,694$1.13M0.00%
HRT Financial LP161,929$260.0K0.00%
XTX Topco Ltd136,841$220.3K0.04%
Healthcare of Ontario Pension Plan Trust Fund121,000$194.8K0.00%
Cornercap Investment Counsel Inc116,159$187.0K0.03%
Y-Intercept (Hong Kong) Ltd99,685$160.5K0.02%
Graham Capital Management, L.P.85,672$137.9K0.00%
Private Advisor Group, LLC62,400$100.5K0.00%
Marshall Wace, LLP62,180$100.1K0.00%
Harbor Capital Advisors, Inc.50,076$80.6K0.02%
Qube Research & Technologies Ltd34,908$56.2K0.00%
JustInvest LLC31,423$50.6K0.00%
Centiva Capital, LP29,143$46.9K0.00%
Point72 Middle East FZE25,351$40.8K0.00%
Ergoteles LLC20,326$32.7K0.00%
Pitcairn Co19,363$31.2K0.00%
Two Sigma Investments, LP15,261$24.6K0.00%
Belvedere Trading LLC12,913$20.8K0.01%
Virtu Financial LLC12,250$20.0K0.00%
Quantbot Technologies LP3,900$6.28K0.00%
Cary Street Partner Investment Advisory LLC66$1060.00%

Sold out (29)

Institutions that held Atara Biotherapeutics, Inc. at the end of Q1 2023 and filed for Q2 2023 without it.