President and Chief Operating Officer · X4 Pharmaceuticals, Inc (XFOR)

John Volpone

FY2025 is the first fiscal year CompBrief holds for John Volpone as a named executive officer of X4 Pharmaceuticals; the record below is that year, complete. Every figure below is printed as the company filed it and cited to the filing it came from.

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Total disclosed compensation, FY2025

$6,667,487

2nd of 4 named executive officers at X4 Pharmaceuticals by FY2025 total.

4 named officers on file for X4 Pharmaceuticals, FY2025

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What this number hides

The filing gives the total. X4 Pharmaceuticals’s full Executive Compensation Report gives every award, the disclosed peer set and what the total leaves out — the pair adds the board’s.

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Compensation figures as of the proxy filed March 20, 2026 (DEF 14A).

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John Volpone compensation by year

X4 Pharmaceuticals Summary Compensation Table · the one fiscal year held
In US dollars, as X4 Pharmaceuticals reports it. Most recent year shaded. Totals are the company’s disclosed totals.
ComponentFY2025
Salary$176,538
Bonus$0
Stock awards$0
Option awards$6,410,958
Non-equity incentive$75,006
Pension and deferred compensation$0
All other$4,985
Total$6,667,487

Each year as stated in that year's proxy. A dash means the company reported no figure in that column. Source: X4 Pharmaceuticals, Inc DEF 14A filed March 20, 2026, accession 0001501697-26-000031, and prior-year filings. Open the filing on EDGAR.

How this page was built: the X4 Pharmaceuticals, Inc filed document, accession 0001501697-26-000031. Every figure is read from that document and cited to the page and table it appears in. Filed March 20, 2026.

Equity holdings

unvested awards at FY2025 year-end
TypeUnvested unitsValue at year-endExercise price
Option2,329,154—$1.42
Option1,609,873—$1.42
Option529,201—$3.14

Per the Outstanding Equity Awards at Fiscal Year-End table in X4 Pharmaceuticals, Inc's FY2025 proxy; value at the fiscal year-end close, as the company printed it.

X4 Pharmaceuticals’s named executive officers, FY2025

as the company reported each
Named executive officerRoleFY2025 total
Adam CraigExecutive Chairman$6,705,205
John Volpone · this pagePresident and Chief Operating Officer$6,667,487
David KirskeChief Financial Officer, Treasurer and Corporate Secretary$4,599,266
Paula RaganFormer President and Chief Executive Officer$2,640,569

John Volpone's compensation dossier, X4 Pharmaceuticals

You have read John Volpone's totals and holdings. The dossier adds each equity grant X4 Pharmaceuticals disclosed for John Volpone and X4 Pharmaceuticals's own disclosed peer group, where the company discloses them, with every row in a PDF and a CSV cited to its filing.

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The full X4 Pharmaceuticals compensation record

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This page is one person within X4 Pharmaceuticals's record. The company brief lists every named executive, each linking to their own page.

Compensation, the day it’s disclosed

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How this record is built

Every figure on this page is one figure from a public SEC filing, printed as the filing states it and cited to the document. Compensation totals are X4 Pharmaceuticals's own disclosed totals, not summed by Velarion. Insider transactions are read from Form 4 filings and cover every line filed since the most recent proxy. Nothing is estimated by Velarion; where the company does not disclose a value the cell reads "—", and a section appears only where the company discloses the data. Corrections: records@velarion.ai.

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John Volpone's compensation dossier