Form4insider filings, from the source

Company · CIK 0001501697 · SIC 2836 — Biological Products, (No Diagnostic Substances) · Nasdaq

X4 Pharmaceuticals, Inc · XFOR

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $356k · 3net −$356k
$10k$10k$100k$100k$1M$1MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 13Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 12, 2026 SForm 4 →Aug 13, 4:13 pm EDTJohn VolponePresident24,576$4.44$109,228265,305−8.48%
Aug 12, 2026 SForm 4 →Aug 13, 4:10 pm EDTAdam R CraigExecutive Chairman, Director47,436$4.44$210,829328,651−12.6%
Jun 30, 2026 SForm 4 →Jul 1, 4:23 pm EDTDavid KirskeChief Financial Officer8,543$4.26$36,428167,750−4.85%

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jul 1, 2026 AForm 4 →Jul 1, 4:20 pm EDTKelly GoldDirector110,000——110,000—