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

Atara Biotherapeutics, Inc. (ATRA) — among the top institutional holders, 3 hedge funds and asset managers reported positions as of Q12026. In Q12026, 0 funds opened a new position, 2 increased their stake, and 0 reduced their holdings. The largest holder is Ubs Group AG with 50.07K shares valued at $ 236.83K.