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Sionna Therapeutics, Inc.

For the period ended Jun 30, 2025. Filed Aug 11, 2025.

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About this filing

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.

Jun 30, 2025 · Filed Aug 11, 2025

SION$3.70+3.6%Stored close · as of Nov 10, 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)

June 30,2025December 31,2024
Assets
Current assets:
Cash and cash equivalents$40,985$37,788
Marketable securities, current221,586109,750
Prepaid expenses and other current assets4,1753,455
Total current assets266,746150,993
Property and equipment, net2,2462,466
Marketable securities, noncurrent74,69920,505
Restricted cash962962
Operating lease right-of-use asset7,3957,832
Other assets—2,994
Total assets$352,048$185,752
Liabilities, convertible preferred stock and stockholders’ equity (deficit)
Current liabilities:
Accounts payable$914$1,186
Accrued expenses5,4688,162
Operating lease liability, current1,1681,072
Total current liabilities7,55010,420
Operating lease liability, noncurrent8,0698,677
Total liabilities15,61919,097
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 June 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 June 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 June 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 June 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 June 30, 2025 and December 31, 2024, respectively; no shares issued or outstanding as of June 30, 2025 and December 31, 2024——
Common stock, $0.001 par value, 500,000,000 and 55,200,000 shares authorized as of June 30, 2025 and December 31, 2024, respectively; 44,132,338 and 4,798,721 shares issued, 44,132,338 and 4,722,763 shares outstanding as of June 30, 2025 and December 31, 2024, respectively445
Additional paid-in capital551,83817,000
Accumulated other comprehensive income183368
Accumulated deficit(215,636)(181,086)
Total stockholders’ equity (deficit)336,429(163,713)
Total liabilities, convertible preferred stock and stockholders’ equity (deficit)$352,048$185,752
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.