Sionna Therapeutics, Inc.
For the period ended Sep 30, 2025. Filed Nov 5, 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 5, 2025
SION$3.57+8.8%Stored close · as of Nov 9, 2026
Extracted filing text, with the paragraph anchors used by the comparison.
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Condensed Consolidated Balance Sheets
(in thousands, except share and per share data) (Unaudited)
| September 30,2025 | December 31,2024 | |
|---|---|---|
| Assets | ||
| Current assets: | ||
| Cash and cash equivalents | $50,831 | $37,788 |
| Marketable securities, current | 197,498 | 109,750 |
| Prepaid expenses and other current assets | 3,999 | 3,455 |
| Total current assets | 252,328 | 150,993 |
| Property and equipment, net | 2,144 | 2,466 |
| Marketable securities, noncurrent | 76,671 | 20,505 |
| Restricted cash | 962 | 962 |
| Operating lease right-of-use asset | 7,165 | 7,832 |
| Other assets | — | 2,994 |
| Total assets | $339,270 | $185,752 |
| Liabilities, convertible preferred stock and stockholders’ equity (deficit) | ||
| Current liabilities: | ||
| Accounts payable | $1,481 | $1,186 |
| Accrued expenses | 6,929 | 8,162 |
| Operating lease liability, current | 1,217 | 1,072 |
| Other current liabilities | 224 | — |
| Total current liabilities | 9,851 | 10,420 |
| Operating lease liability, noncurrent | 7,751 | 8,677 |
| Total liabilities | 17,602 | 19,097 |
| Commitments and contingencies (Note 7) | ||
| Series Seed convertible preferred stock, $0.001 par value, no shares and 3,963,963 shares authorized, issued and outstanding as of September 30, 2025 and December 31, 2024, respectively | — | 13,014 |
| Series A convertible preferred stock, $0.001 par value, no shares and 5,704,161 shares authorized, issued and outstanding as of September 30, 2025 and December 31, 2024, respectively | — | 25,235 |
| Series B convertible preferred stock, $0.001 par value, no shares and 11,370,621 shares authorized, issued and outstanding as of September 30, 2025 and December 31, 2024, respectively | — | 110,791 |
| Series C convertible preferred stock, $0.001 par value, no shares and 18,628,970 shares authorized, issued and outstanding as of September 30, 2025 and December 31, 2024, respectively | — | 181,328 |
| Total convertible preferred stock | — | 330,368 |
| Stockholders’ equity (deficit): | ||
| Preferred stock, $0.001 par value, 10,000,000 and no shares authorized as of September 30, 2025 and December 31, 2024, respectively; no shares issued or outstanding as of September 30, 2025 and December 31, 2024 | — | — |
| Common stock, $0.001 par value, 500,000,000 and 55,200,000 shares authorized as of September 30, 2025 and December 31, 2024, respectively; 44,463,527 and 4,798,721 shares issued, 44,463,527 and 4,722,763 shares outstanding as of September 30, 2025 and December 31, 2024, respectively | 44 | 5 |
| Additional paid-in capital | 557,118 | 17,000 |
| Accumulated other comprehensive income | 420 | 368 |
| Accumulated deficit | (235,914) | (181,086) |
| Total stockholders’ equity (deficit) | 321,668 | (163,713) |
| Total liabilities, convertible preferred stock and stockholders’ equity (deficit) | $339,270 | $185,752 |
The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.