Spero Therapeutics, Inc.
For the period ended Dec 31, 2025. Filed Mar 26, 2026.
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FY2025 · Filed Mar 26, 2026
SPRO$1.01-5.6%Stored close · as of Nov 10, 2026
Extracted filing text, with the paragraph anchors used by the comparison.
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Consolidated Statements of Operations and Comprehensive Income (Loss)
(In thousands, except share and per share data)
| Year Ended December 31, | ||
|---|---|---|
| 2025 | 2024 | |
| Revenues: | ||
| Grant revenue | $7,183 | $20,581 |
| Collaboration revenue - related party | 47,033 | 27,025 |
| Collaboration revenue | 12,586 | 371 |
| Total revenues | 66,802 | 47,977 |
| Operating expenses: | ||
| Research and development | 38,467 | 96,757 |
| General and administrative | 21,176 | 23,704 |
| Impairment charges | 587 | — |
| Restructuring | 258 | 877 |
| Total operating expenses | 60,488 | 121,338 |
| Income (loss) from operations | 6,314 | (73,361) |
| Other income: | ||
| Interest income | 2,512 | 4,735 |
| Other income (expense), net | 7 | 60 |
| Total other income, net | 2,519 | 4,795 |
| Net income (loss) before income taxes | 8,833 | (68,566) |
| Income tax expense | (261) | — |
| Net income (loss) and comprehensive income (loss) | $8,572 | $(68,566) |
| Net income (loss) per share attributable to common stockholders, basic | $0.15 | $(1.27) |
| Net income (loss) per share attributable to common stockholders, diluted | $0.15 | $(1.27) |
| Weighted average common shares outstanding, basic: | 56,020,363 | 54,037,917 |
| Weighted average common shares outstanding, diluted: | 59,039,225 | 54,037,917 |
CONSOLIDATED STATEMENTS OF
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