TotalMarketCap

X4 Pharmaceuticals

XFORNasdaq United StatesHealth CareBiotechnology: Biological Products (No Diagnostic Substances)

Market cap

$313.999 M

$3.08 -5.09%

Close of 6 Nov 2026

As of 6 Nov 2026, X4 Pharmaceuticals (XFOR) has a market capitalization of $314.0M. 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

$6.50M

#3218 by revenue

Earnings

-$79.2M

Loss-making

Shares outstanding

102,113,554

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Biotechnology: Biological Products (No Diagnostic Substances), ranked by market cap

All 163 →
  1. #79ProkidneyPROK$322.0M
  2. #80Eikon TherapeuticsEIKN$315.8M
  3. #81X4 PharmaceuticalsXFOR$314.0M
  4. #82AlectorALEC$310.6M
  5. #83Scribe TherapeuticsSCTX$293.7M

What if X4 Pharmaceuticals were worth as much as…

Open the what-if tool →

Gold $28.2T

$276,524.25

Per share 89,927× higher

Bitcoin $1.53T

$14,962.25

Per share 4,866× higher

Apple $5.02T

$49,119.66

Per share 15,974× higher

Or at a round number

$500.0M$1.00B$2.00B$5.00B

Where these numbers come from

Share counts and financials for X4 Pharmaceuticals 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.