Atara Biotherapeutics, Inc. - ATRA

Sector: Healthcare · Industry: Biological Products, (No Diagnostic Substances)
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Company profile

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Quarter snapshot

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Q3 2026 · Q2 2026
Value (USD)
Total reported value ($000)
$49.77M
QoQ value delta ($000)
-$1.508M (-2.94%)
Implied price effect (QoQ)
-1.82%
Shares
Total shares
4,417,283
QoQ shares delta
-50,899 (-1.14%)
Total shares held by funds (by quarter)
Shares (left)

Fund holders include prior positions carried forward until a new 13F confirms a change. Reported holders have reported a position in this security for that quarter; this is not the total number of 13F filers.

Market chart (ATRA)

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Top holders (Q3 2026)

Top 25 only Full list
Partial Q3 2026 data: 9 holders have filed so far. Prior holders are carried forward until their next 13F confirms a change.
Manager Value ($000) Shares % of 13F
EcoR1 Capital, LLC 17,816 1,552,000 0.87%
ADAGE CAPITAL PARTNERS GP, L.L.C. 9,758 850,000 0.01%
Point72 Asset Management, L.P. 7,895 687,718 0.01%
Redmile Group, LLC 5,070 441,701 0.34%
VANGUARD CAPITAL MANAGEMENT LLC 2,836 247,047 0.0%
MACKENZIE FINANCIAL CORP 1,502 176,758 0.0%
BlackRock, Inc. 969 84,455 0.0%
GEODE CAPITAL MANAGEMENT, LLC 688 80,950 0.0%
VANGUARD FIDUCIARY TRUST CO 494 43,036 0.0%
ACADIAN ASSET MANAGEMENT LLC 444 38,845 0.0%
STALEY CAPITAL ADVISERS INC 425 50,000 0.02%
JANE STREET GROUP, LLC 348 30,345 0.0%
STATE STREET CORP 303 26,453 0.0%
NORTHERN TRUST CORP 190 16,591 0.0%
FMR LLC 186 16,238 0.0%
XTX Topco Ltd 175 15,303 0.0%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 160 14,000 0.0%
MILLENNIUM MANAGEMENT LLC 145 12,680 0.0%
CITADEL ADVISORS LLC 116 10,159 0.0%
MORGAN STANLEY 105 9,178 0.0%
ROYAL BANK OF CANADA 55 4,743 0.0%
UBS Group AG 45 3,979 0.0%
Vanguard Global Advisers, LLC 16 1,456 0.0%
SBI Securities Co., Ltd. 11 1,404 0.0%
JONES FINANCIAL COMPANIES LLLP 8 803 0.0%