John Volpone

President, X4 Pharmaceuticals, Inc.

Companies

X4 Pharmaceuticals, IncPresident Aug 14, 2025 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

X4 Pharmaceuticals, Inc XFOR265,305 shares²$680.5K at $2.56Aug 12, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

Aug 12, 2026Sold 24,576 shares at $4.44 of X4 Pharmaceuticals, Inc²
Aug 14, 2025Granted 289,881 shares of X4 Pharmaceuticals, Inc³

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARX4 Pharmaceuticals, Inc, President
2
SEC EDGARX4 Pharmaceuticals, Inc shares after the filing of Aug 12, 2026
3
SEC EDGARForm 4 filed Aug 14, 2025