Senior insider sale
Chief Financial Officer at X4 PHARMACEUTICALS, INC — senior position signals high conviction
$72.8K
16.96K shares
What this filing means
KIRSKE DAVID plans to sell 16.96K shares of X4 PHARMACEUTICALS, INC valued at approximately $72.8K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 5/12/2026ACC: 0001276750-26-000004
Officer· Chief Financial Officer
Since Aug 2025
16.96K
Shares to sell
$72.8K
Approx. market value
64.42K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months1
Restricted Stock Unit Vesting
Compensation
5/11/2026
64.42KTotal acquired64.42K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
5/11/2026 | Restricted Stock Unit Vesting Compensation | 64.42K | — |
| Total | 64.42K | ||
Planned & Completed Dispositions1
NASDAQPlanned
Units to sell
16.96K
Market value
$72.8K
5/12/2026
Total
Units
16.96K
Value
$72.8K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
5/12/2026 | 16.96K | $72.8K | NASDAQ | Planned |
| Total | 16.96K | $72.8K | ||