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X4 Pharmaceuticals XFOR · USD

Health Care · US listing · 🇺🇸 United States

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3.33

+4.72%

Close of 9 Nov 2026, in USD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
Empery Asset Management, L.P.9m21.16%+6.6m31 Dec 2025
Fidelity Management & Research Company LLC8.5m20.10%—31 Dec 2025
Morgan Stanley Investment Management Inc. (US)8.2m19.40%+8.2m31 Dec 2025
Perceptive Advisors LLC6.3m14.93%+401.3k31 Dec 2025
Saturn V Capital Management LP5.8m13.72%−633k31 Dec 2025
Deep Track Capital LP5m11.85%+3.9m31 Dec 2025
Kalehua Capital Management LLC3.7m8.80%+3.7m31 Dec 2025
The Vanguard Group, Inc.3.4m8.10%+3m31 Dec 2025
Braidwell LP3.4m7.97%+3.4m31 Dec 2025
New Enterprise Associates (NEA)3.2m7.65%−131 Dec 2025
Blackstone Alternative Asset Management, L.P.2.7m6.34%+2.7m31 Dec 2025
Rosalind Advisors, Inc.2.6m6.16%+1.1m31 Dec 2025
Trails Edge Capital Partners LP2.6m6.08%+1m31 Dec 2025
Nantahala Capital Management, LLC2.4m5.79%+221.1k31 Dec 2025
BVF Partners L.P.2.2m5.28%—31 Dec 2025

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

7.5m

-1.3% on the period before. 12.5 days to cover.

Short volume

Share of the day's trading sold short, 4 Nov 2026

46.1%

Last 60 trading days.

Failed deliveries

Shares not delivered on settlement, from the SEC

  • 30 Sept 20261,021 shares
  • 18 Sept 20261,663 shares
  • 16 Sept 2026298,075 shares
  • 15 Sept 2026294 shares
  • 11 Sept 202611,061 shares

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.