David Kirske Insider Trades & Stock Holdings

Chief Financial Officer · X4 Pharmaceuticals, Inc · Latest filing Oct 1, 2026

David Kirske, Chief Financial Officer at X4 Pharmaceuticals, Inc has 1 Form 4 trade on file since Oct 1, 2026. Open-market activity: 0 purchases ($0) and 1 sale ($33.66K), net -$33.66K. Latest filing: disposed of 11.77K shares of $XFOR on Oct 1, 2026 at $2.86.

Trades on file

1

Open-market bought

$0

Open-market sold

$33.66K

Net open-market

-$33.66K

Latest filing

Oct 1, 2026

All insider trades by David Kirske

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Oct 1, 2026	$XFOR	Sell (Open-market sale)	11.77K	$2.86	$33.66K						Chief Financial Officer		—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks David Kirske traded

• $XFOR

Frequently asked questions

Has David Kirske been buying or selling stock?

David Kirske has 0 open-market purchases and 1 open-market sale on file, net -$33.66K. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was David Kirske's latest insider trade?

disposed of 11.77K shares of $XFOR on Oct 1, 2026 at $2.86.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.