Company · Ownership research

X4 Pharmaceuticals, Inc XFOR

CIK 0001501697

Form 4 transactions dated Sep 1, 2023 to Sep 25, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through 2026-08-13.

Insider purchases & sales

Purchased: $269.25K
Sold: $1.54M

Sep 1, 2023 – Aug 13, 2026
Available records · partial months are marked ·

20256 of 6 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2025-10-23	Craig Adam R Executive Chairman · Director	Purchase	$250.00K 86,206 shares bought	29.74% added Direct holding	▾
2025-01-24	Ragan Paula President and CEO · Director	Sale10b5-1 footnote	$34.72K 76,473 shares sold	6.57% sold Direct holding	▾
2025-01-24	Mostafa Adam S. Chief Financial Officer	Sale10b5-1 footnote	$33.95K 74,773 shares sold	100.00% sold Direct holding	▾
2025-01-24	Baldry Mark Chief Commercial Officer	Sale10b5-1 footnote	$13.24K 29,159 shares sold	23.65% sold Direct holding	▾
2025-01-24	DiBiase Mary Chief Operating Officer	Sale10b5-1 footnote	$10.09K 22,258 shares sold	4.34% sold Direct holding	▾
2025-01-24	Arbet-Engels Christophe Chief Medical Officer	Sale10b5-1 footnote	$5.28K 11,624 shares sold	45.00% sold Direct holding	▾

Showing 6 / 6 record groups in 2025. The complete set is available through the API.

X4 Pharmaceuticals, Inc · XFOR

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{"ticker":"XFOR","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.