TotalMarketCap

Sionna Therapeutics

SIONNasdaq United StatesHealth CareBiotechnology: Pharmaceutical Preparations

Market cap

$147.845 M

$3.27 -12.33%

Close of 6 Nov 2026

As of 6 Nov 2026, Sionna Therapeutics (SION) has a market capitalization of $147.8M. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

—

Not reported

Earnings

-$75.3M

Loss-making

Shares outstanding

45,212,399

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Biotechnology: Pharmaceutical Preparations, ranked by market cap

All 498 →
  1. #262Inovio PharmaceuticalsINO$150.4M
  2. #263AN2 TherapeuticsANTX$149.8M
  3. #264Sionna TherapeuticsSION$147.8M
  4. #265Atrium TherapeuticsRNA$143.5M
  5. #266MacrogenicsMGNX$143.3M

What if Sionna Therapeutics were worth as much as…

Open the what-if tool →

Gold $28.2T

$624,538.28

Per share 190,990× higher

Bitcoin $1.53T

$33,792.68

Per share 10,334× higher

Apple $5.02T

$110,938.21

Per share 33,926× higher

Or at a round number

$200.0M$500.0M$1.00B$2.00B

Where these numbers come from

Share counts and financials for Sionna Therapeutics are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.