Atara Biotherapeutics (ATRA) Shares Outstanding (Diluted Average) (2020 - 2026)

Atara Biotherapeutics has reported Shares Outstanding (Diluted Average) for 7 years, with the latest figure at $14.1 million in Q1 2026.

• For the quarter ending Q1 2026, Shares Outstanding (Diluted Average) rose 29.77% year-over-year to $14.1 million; the trailing twelve-month figure through Mar 2026 stood at $14.1 million (up 29.77% YoY), and the FY2025 full-year result was $12.7 million, up 69.85% from the prior year.
• Shares Outstanding (Diluted Average) for Q1 2026 stood at $14.1 million, up from $12.7 million in the prior quarter.
• The five-year high for Shares Outstanding (Diluted Average) was $104.0 million in Q1 2023, with the low at $4.2 million in Q2 2023.
• Historically, Shares Outstanding (Diluted Average) has averaged $35.9 million across 5 years, with a median of $12.3 million in 2025.
• Annual changes were most pronounced in 2023 — Shares Outstanding (Diluted Average) slumped 95.86% — and 2025, when it jumped 111.47%.
• Atara Biotherapeutics' Shares Outstanding (Diluted Average) stood at $102.0 million in 2022, then sank by 95.85% to $4.2 million in 2023, then soared by 76.77% to $7.5 million in 2024, then jumped by 69.85% to $12.7 million in 2025, then increased by 10.72% to $14.1 million in 2026.
• The last three Shares Outstanding (Diluted Average) figures came in at $14.1 million (Q1 2026), $12.7 million (Q4 2025), and $13.6 million (Q3 2025), per Business Quant data.