Atara Biotherapeutics, Inc. · NASDAQ:ATRA

EcoR1 Capital, LLC reported a 9.90% stake in Atara Biotherapeutics, Inc. (Schedule 13G/A)

Event Sep 30, 2025 · Filed Nov 14, 2025

EcoR1 Capital, LLC reported a 9.90% stake in Atara Biotherapeutics, Inc., 715,853 shares, as a passive investor on Sep 30, 2025. Filed Nov 14, 2025 (Schedule 13G/A).

Stake
9.90%
Shares
715,853
Intent
Passive
What changed
Stake changed
Filed together
3 holders

The filing in full

HolderStakeShares
EcoR1 Capital, LLC9.90%715,853
Oleg Nodelman9.90%715,853
EcoR1 Capital Fund Qualified, L.P.9.30%667,639

Source

View original at SEC

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