Atara Biotherapeutics (ATRA) Shares Outstanding (2013 - 2026)

Atara Biotherapeutics (ATRA) has 14 years of Shares Outstanding (Entity) data on file, last reported at $14.1 million in Q1 2026.

• Quarterly Shares Outstanding (Entity) rose 30.82% year-over-year to $14.1 million in Q1 2026, while the trailing twelve-month figure through Mar 2026 was $14.1 million (up 30.82% YoY) and the FY2025 annual result came in at $12.5 million, up 67.52% from the prior year.
• Shares Outstanding (Entity) advanced to $14.1 million in Q1 2026, from $12.5 million in the prior quarter.
• In the past five years, Shares Outstanding (Entity) ranged from a high of $14.1 million in Q1 2026 to a low of $3.7 million in Q1 2022.
• A 5-year average of $7.1 million and a median of $4.8 million in 2024 frame the typical range for Shares Outstanding (Entity).
• Annual changes were most pronounced in 2023 — Shares Outstanding (Entity) increased 3.35% — and 2025, when it soared 123.64%.
• Tracing ATRA's Shares Outstanding (Entity) over 5 years: stood at $3.8 million in 2022, then climbed by 10.97% to $4.3 million in 2023, then surged by 75.86% to $7.5 million in 2024, then surged by 67.52% to $12.5 million in 2025, then rose by 12.25% to $14.1 million in 2026.
• The last three Shares Outstanding (Entity) figures came in at $14.1 million (Q1 2026), $12.5 million (Q4 2025), and $13.6 million (Q3 2025), per Business Quant data.