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$XFOR All transactions

X4 Pharmaceuticals, Inc

A

$ Value

$0

Shares

1,552,769

Price

$0

Filed

Oct 31

Insider

Name

KIRSKE DAVID

Title

Chief Financial Officer

CIK

0001276750

Roles

Officer

Transaction Details

Transaction Date

2025-10-29

Code

A

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

1,552,769

Footnotes

Represents stock options granted to the Reporting Person on August 12, 2025, which were subject to a performance-based vesting condition that was satisfied on October 29, 2025. One third of the shares subject to the option shall vest on August 12, 2026, with the remainder vesting in equal installments each successive month thereafter for a period of 24 months, subject to the Reporting Person continuing to provide services through each such date.

Filing Info

Accession No.

0001276750-25-000004

Form Type

4

Issuer CIK

0001501697

KIRSKE DAVID's History

Date Ticker Type Value
2025-10-29 XFOR A $0
2025-08-14 XFOR A $0
2025-08-14 XFOR A $0
2025-08-12 XFOR A $0

Other Insiders at XFOR (90d)

No other insider activity at this issuer in the last 90 days.