David Kirske - Chief Financial Officer at X4 Pharmaceuticals, Inc

Issuer-level insider activity

Identity Names, identifiers, and filing context for this profile. 1 identity field
Entity type
Individual
Source evidence Original filing metadata and source links for verification. 1 source field
Source filing history
Open source filing history

Past-year transaction volume for David Kirske in X4 Pharmaceuticals, Inc

Buys

Open market
Shares
Avg price
Total value

Sells

Open market
Shares
-25,504
Avg price
$4.28
Total value
-$109,249

Net

Past year
Shares
-25,504
Share %
-100%
Total value
-$109,249

Reported holdings for David Kirske in X4 Pharmaceuticals, Inc

Form 4 holding Chief Financial Officer

X4 Pharmaceuticals, Inc

Security class
Stock Option (right to buy)
Shares / value
1,552,769
Estimated value
Report date
29 Oct 2025
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount

Transaction history for David Kirske in X4 Pharmaceuticals, Inc

Sym Class Transaction % SEC-reported value SEC-reported price Shares Shares after Date Ownership
* marks a reported price that did not pass the local price check.
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