WallStSmart
SION

Sionna Therapeutics, Inc. Common Stock

NASDAQ: SION · HEALTHCARE · BIOTECHNOLOGY

$45.95
-6.38% today

Updated 2026-06-05

Market cap
$1.93B
P/E ratio
P/S ratio
EPS (TTM)
$-1.86
Dividend yield
52W range
$15 – $48
Volume
0.4M

Sionna Therapeutics, Inc. Common Stock (SION) Financial statements

SEC filings — annual and quarterly data.

Profit margin
0.00%
Operating margin
0.00%
ROE
-29.69%
ROA
-18.30%
Debt/equity
0.03x

Margin trends — annual

Gross margin Operating margin Profit margin
YearRevenueNet incomeGross marginOp. marginProfit margin
2022$0.00$-40.24M
2023$0.00$-47.26M
2024$0.00$-61.69M
2025$0.00$-75.27M

Frequently asked questions

How much free cash flow does SION generate?

SION produced $-66.67M in free cash flow in its most recent fiscal year. Free cash flow is what is left after running and reinvesting in the business, and it is the cash that actually funds buybacks, dividends, and a stronger balance sheet.

Is SION's balance sheet healthy?

SION holds $58.45M in cash and equivalents against — in long-term debt, on $306.83M of shareholder equity. That debt is best read against the cash flow the business throws off each year.