Atara Biotherapeutics, Inc.
For the period ended Sep 30, 2025. Filed Nov 12, 2025.
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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.
Sep 30, 2025 · Filed Nov 12, 2025
ATRA$8.10-1.0%Stored close · as of Nov 10, 2026
Extracted filing text, with the paragraph anchors used by the comparison.
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Condensed Consolidated Statements of Changes in Stockholders’ Equity (Deficit)
(In thousands)
| Accumulated | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Common · Additional · Other · Total | ||||||||||
| Stock · Paid-in · Comprehensive · Accumulated · Stockholders’ | ||||||||||
| For the Nine Months Ended September 30, 2025 · Shares · Amount · Capital · Income (Loss) · Deficit · Equity (Deficit) | ||||||||||
| Balance as of January 1, 2025 | 5,859 | $1 | $1,957,261 | $8 | $(2,054,553) | $(97,283) | ||||
| RSU settlements, net of shares withheld | 65 | — | — | — | — | — | ||||
| Stock-based compensation expense | — | — | 4,209 | — | — | 4,209 | ||||
| Net (loss) income | — | — | — | — | 38,010 | 38,010 | ||||
| Unrealized gain (loss) on available-for-sale securities | — | — | — | (8) | — | (8) | ||||
| Balance as of March 31, 2025 | 5,924 | $1 | $1,961,470 | $— | $(2,016,543) | $(55,072) | ||||
| Issuance of pre-funded warrants to purchase common stock through an underwritten registered direct offering, net of offering costs of $522 | 834 | — | 14,843 | — | — | 14,843 | ||||
| RSU settlements, net of shares withheld | 220 | — | (1) | — | — | (1) | ||||
| Issuance of common stock pursuant to employee stock awards | — | — | 1 | — | — | 1 | ||||
| Stock-based compensation expense | — | — | 2,801 | — | — | 2,801 | ||||
| Net (loss) income | — | — | — | — | 2,387 | 2,387 | ||||
| Balance as of June 30, 2025 | 6,978 | $1 | $1,979,114 | $— | $(2,014,156) | $(35,041) | ||||
| Issuance of common stock through ATM facilities, net of commissions and offering costs of $48 | 125 | $1,471 | — | — | 1,471 | |||||
| RSU settlements, net of shares withheld | 106 | — | — | — | — | — | ||||
| Issuance of common stock pursuant to employee stock awards | 1 | — | 12 | — | — | 12 | ||||
| Stock-based compensation expense | — | — | 1,225 | — | — | 1,225 | ||||
| Net (loss) income | — | — | — | — | (4,303) | (4,303) | ||||
| Unrealized gain (loss) on available-for-sale securities | — | — | — | 2 | — | 2 | ||||
| Balance as of September 30, 2025 | 7,210 | $1 | $1,981,822 | $2 | $(2,018,459) | $(36,634) | ||||
| Accumulated | |||||||
|---|---|---|---|---|---|---|---|
| Common · Additional · Other · Total | |||||||
| Stock · Paid-in · Comprehensive · Accumulated · Stockholders’ | |||||||
| For the Nine Months Ended September 30, 2024 · Shares · Amount · Capital · Income (Loss) · Deficit · Equity (Deficit) | |||||||
| Balance as of January 1, 2024 | 4,258 | $— | $1,870,123 | $(204) | $(1,969,150) | $(99,231) | |
| Issuance of pre-funded warrants to purchase common stock through a registered direct offering, net of offering costs of $177 | — | $— | $14,823 | $— | $— | $14,823 | |
| Issuance of common stock through ATM facilities, net of commissions and offering costs of $168 | 493 | — | 9,312 | — | — | 9,312 | |
| RSU settlements, net of shares withheld | 63 | — | (6) | — | — | (6) | |
| Stock-based compensation expense | — | — | 8,397 | — | — | 8,397 | |
| Net (loss) income | — | — | — | — | (31,752) | (31,752) | |
| Unrealized gain (loss) on available-for-sale securities | — | — | — | 149 | — | 149 | |
| Balance as of March 31, 2024 | 4,814 | $— | $1,902,649 | $(55) | $(2,000,902) | $(98,308) | |
| RSU settlements, net of shares withheld | 81 | — | (1) | — | — | (1) | |
| Issuance of common stock pursuant to employee stock awards | 9 | — | 113 | — | — | 113 | |
| Stock-based compensation expense | — | — | 6,336 | — | — | 6,336 | |
| Net (loss) income | — | — | — | — | (19,049) | (19,049) | |
| Unrealized gain (loss) on available-for-sale securities | — | — | — | 41 | — | 41 | |
| Balance as of June 30, 2024 | 4,904 | $ | - | $1,909,097 | $(14) | $(2,019,951) | $(110,868) |
| Issuance of common stock and pre-funded warrants to purchase common stock through a registered direct offering, net of offering costs of $220 | 759 | $1 | $35,779 | — | — | 35,780 | |
| RSU settlements, net of shares withheld | 77 | — | — | — | — | — | |
| Stock-based compensation expense | — | — | 6,422 | — | — | 6,422 | |
| Net (loss) income | — | — | — | — | (21,909) | (21,909) | |
| Unrealized gain (loss) on available-for-sale securities | — | — | — | 36 | — | 36 | |
| Balance as of September 30, 2024 | 5,740 | $1 | $1,951,298 | $22 | $(2,041,860) | $(90,539) | |
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