Dudediligence.

Sionna Therapeutics, Inc

SIONNASDAQ · Pharmaceutical Preparations
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Financing

SEC filings to 2026-10-05 · every row opens its filing

Shares on issue

45.2M

on 2026-06-30, from 4.72M on 2024-12-31 10-Q ↗

a raise that quarter, at its price

Newest

No limit

S-3ASR of 2026-03-02. An automatic shelf: the form sets no dollar limit. Sales under the at-the-market programme filed with it are not stated apart. S-3ASR ↗

$250.0M

Leerink Partners, agreement of 2026-03-02. No at-the-market sales statement read from a 10-Q or 10-K. S-3ASR ↗

Warrants

The 10-Q filed 2026-08-06 is not read yet.

Cash

3.3 quarters

$63.3M on 2026-06-30 ÷ $19.0M a quarter of operating cash used, the average of four quarters. 10-Q ↗

Raised
DateWhatSharesPriceGrossFiling
2025-02-07Public offering10,588,233$18.00not read424B4 ↗