Sharemaestro, Atara Biotherapeutics Inc (ATRA), 2026-08-20, https://sharemaestro.com/evidence/bceb2615-d053-4d52-bc5e-cdb449153e2b/ Record ID: bceb2615-d053-4d52-bc5e-cdb449153e2b Record checksum: 6c82ce1670819f2e10fb25a321fc11896ace79fe4bbad3ff4129e22c2013be75