Spero Therapeutics, Inc.
Balance Sheet
| Line Item | Jun 2026 | Mar 2026 | Dec 2025 | Sep 2025 | Jun 2025 | Mar 2025 | Dec 2024 | Sep 2024 |
|---|---|---|---|---|---|---|---|---|
| Assets | ||||||||
| Cash & Equivalents | $50.8M | $56.1M | $40.3M | $48.6M | $31.2M | $48.9M | $52.9M | $76.3M |
| Accounts Receivable | — | — | — | — | — | — | — | — |
| Inventory | — | — | — | — | — | — | — | — |
| Total Current Assets | $51.6M | $57.6M | $67.3M | $52.3M | $59.4M | $74.7M | $107.3M | $131.6M |
| Property, Plant & Equipment | — | — | — | — | — | — | $0 | $0 |
| Goodwill | — | — | — | — | — | — | — | — |
| Intangible Assets (Excl. Goodwill) | — | — | — | — | — | — | — | — |
| Total Assets | $52.8M | $59.0M | $68.9M | $54.2M | $62.1M | $77.7M | $110.5M | $135.2M |
| Liabilities | ||||||||
| Accounts Payable | $155.0K | $217.0K | $693.0K | $1.4M | $780.0K | $1.8M | $7.3M | $6.1M |
| Total Current Liabilities | $8.4M | $5.5M | $8.9M | $13.6M | $14.9M | $29.2M | $49.1M | $49.1M |
| Long-Term Debt | — | — | — | — | — | — | — | — |
| Total Liabilities | $8.6M | $6.1M | $9.9M | $27.7M | $29.3M | $43.9M | $64.4M | $69.7M |
| Stockholders' Equity | ||||||||
| Retained Earnings | $-467.8M | $-458.3M | $-451.1M | $-482.6M | $-475.2M | $-473.5M | $-459.6M | $-438.8M |
| Total Stockholders' Equity | $44.2M | $52.9M | $59.0M | $26.5M | $32.8M | $33.8M | $46.1M | $65.5M |