Sharemaestro, Atara Biotherapeutics Inc (ATRA), 2026-08-15, https://sharemaestro.com/evidence/cbf9e580-1ae4-444a-8d56-42124bfcd6bf/ Record ID: cbf9e580-1ae4-444a-8d56-42124bfcd6bf Record checksum: d85f0f14151c54924ea8d10d619c510548b76a292d117c3825a02a946dd6b886