Three directors resign from Atara Biotherapeutics board; Ciongoli named Chair

Atara Biotherapeutics, Inc.

Directors Ameet Mallik, Pascal Touchon, and Maria Grazia Roncarolo resigned voluntarily effective Sept 2, 2025.
Board size reduced from 10 to 7 directors as of the same date.
Gregory A. Ciongoli appointed as Chair to succeed Pascal Touchon.

item 5.02

Source: SEC EDGAR

accession 0000950170-25-112898

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