Atara Biotherapeutics, Inc. (ATRA) — Institutional Ownership     Insider Trades

Atara Biotherapeutics, Inc. (ATRA) — among the top institutional holders, 18 hedge funds and asset managers reported positions as of Q12026. In Q12026, 2 funds opened a new position, 8 increased their stake, and 3 reduced their holdings. The largest holder is Redmile Group, LLC with 441.7K shares valued at $ 2.09M.