ATRA Insider Buying — Atara Biotherapeutics, Inc.

Atara Biotherapeutics, Inc. engages in the development of transformative therapies for patients with cancer and autoimmune disease in the United States and internationally. Its lead product includes Tab-cel (tabelecleucel), a T-cell immunotherapy program that is in Phase 3 clinical trials for the...

22 insider purchases on record · latest filing 2026-05-11.

Insiders have also filed 679 sale transactions at ATRA.