IPO prospectus

X4 Pharmaceuticals, Inc.’s initial public offering: where it stands and what the registration statement says.

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Latest 10-Q

What changed in X4 Pharmaceuticals, Inc.'s latest quarterly report, compared with the one before.

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Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.

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13F holders

Funds that report this stock, checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.

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Lobbying

What X4 Pharmaceuticals, Inc. and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.

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Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

About the company

The basics from the company’s SEC registration.

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$3.12−$0.05 (−1.58%) Nov 13 close
Oct 13, 2026: $2.60Oct 14, 2026: $2.45Oct 15, 2026: $2.64Oct 16, 2026: $2.59Oct 19, 2026: $2.75Oct 20, 2026: $3.02Oct 21, 2026: $3.01Oct 22, 2026: $3.20Oct 23, 2026: $3.24Oct 26, 2026: $3.25Oct 27, 2026: $3.25Oct 28, 2026: $3.35Oct 29, 2026: $3.36Oct 30, 2026: $3.35Nov 2, 2026: $3.35Nov 3, 2026: $3.17Nov 4, 2026: $3.24Nov 5, 2026: $3.07Nov 6, 2026: $3.18Nov 9, 2026: $3.33Nov 10, 2026: $3.25Nov 11, 2026: $3.23Nov 12, 2026: $3.17Nov 13, 2026: $3.12
Oct 13, 2026Low $2.45 · High $3.36Nov 13, 2026
Aug 13, 2026: $4.29Aug 14, 2026: $4.22Aug 17, 2026: $4.30Aug 18, 2026: $4.21Aug 19, 2026: $4.16Aug 20, 2026: $4.03Aug 21, 2026: $4.04Aug 24, 2026: $4.05Aug 25, 2026: $4.16Aug 26, 2026: $4.17Aug 27, 2026: $4.23Aug 28, 2026: $4.04Aug 31, 2026: $4.04Sep 1, 2026: $4.07Sep 2, 2026: $4.04Sep 3, 2026: $4.04Sep 4, 2026: $4.04Sep 8, 2026: $3.51Sep 9, 2026: $3.60Sep 10, 2026: $3.40Sep 11, 2026: $3.50Sep 14, 2026: $3.62Sep 15, 2026: $3.62Sep 16, 2026: $3.51Sep 17, 2026: $3.50Sep 18, 2026: $3.58Sep 21, 2026: $3.50Sep 22, 2026: $3.43Sep 23, 2026: $3.11Sep 24, 2026: $3.00Sep 25, 2026: $3.01Sep 28, 2026: $3.02Sep 29, 2026: $2.90Sep 30, 2026: $2.90Oct 1, 2026: $2.83Oct 2, 2026: $2.83Oct 5, 2026: $2.90Oct 6, 2026: $2.77Oct 7, 2026: $2.81Oct 8, 2026: $2.79Oct 9, 2026: $2.91Oct 12, 2026: $2.82Oct 13, 2026: $2.60Oct 14, 2026: $2.45Oct 15, 2026: $2.64Oct 16, 2026: $2.59Oct 19, 2026: $2.75Oct 20, 2026: $3.02Oct 21, 2026: $3.01Oct 22, 2026: $3.20Oct 23, 2026: $3.24Oct 26, 2026: $3.25Oct 27, 2026: $3.25Oct 28, 2026: $3.35Oct 29, 2026: $3.36Oct 30, 2026: $3.35Nov 2, 2026: $3.35Nov 3, 2026: $3.17Nov 4, 2026: $3.24Nov 5, 2026: $3.07Nov 6, 2026: $3.18Nov 9, 2026: $3.33Nov 10, 2026: $3.25Nov 11, 2026: $3.23Nov 12, 2026: $3.17Nov 13, 2026: $3.12
Aug 13, 2026Low $2.45 · High $4.30Nov 13, 2026
Nov 13, 2025: $3.73Nov 14, 2025: $3.66Nov 17, 2025: $3.66Nov 18, 2025: $3.60Nov 19, 2025: $3.65Nov 20, 2025: $3.70Nov 21, 2025: $3.75Nov 24, 2025: $3.80Nov 25, 2025: $3.80Nov 26, 2025: $3.64Nov 28, 2025: $3.64Dec 1, 2025: $3.15Dec 2, 2025: $3.20Dec 3, 2025: $3.25Dec 4, 2025: $3.80Dec 5, 2025: $3.98Dec 8, 2025: $3.84Dec 9, 2025: $3.64Dec 10, 2025: $3.89Dec 11, 2025: $3.88Dec 12, 2025: $3.91Dec 15, 2025: $3.76Dec 16, 2025: $3.71Dec 17, 2025: $3.51Dec 18, 2025: $3.66Dec 19, 2025: $3.60Dec 22, 2025: $4.10Dec 23, 2025: $4.12Dec 24, 2025: $4.42Dec 26, 2025: $4.50Dec 29, 2025: $4.30Dec 30, 2025: $4.16Dec 31, 2025: $4.00Jan 2, 2026: $3.89Jan 5, 2026: $3.84Jan 6, 2026: $3.96Jan 7, 2026: $4.00Jan 8, 2026: $4.04Jan 9, 2026: $4.00Jan 12, 2026: $3.90Jan 13, 2026: $3.87Jan 14, 2026: $3.77Jan 15, 2026: $3.62Jan 16, 2026: $3.70Jan 20, 2026: $3.67Jan 21, 2026: $3.75Jan 22, 2026: $3.76Jan 23, 2026: $3.70Jan 26, 2026: $3.63Jan 27, 2026: $3.70Jan 28, 2026: $3.62Jan 29, 2026: $3.69Jan 30, 2026: $3.70Feb 2, 2026: $3.98Feb 3, 2026: $4.00Feb 4, 2026: $3.85Feb 5, 2026: $3.66Feb 6, 2026: $3.56Feb 9, 2026: $3.55Feb 10, 2026: $3.71Feb 11, 2026: $3.43Feb 12, 2026: $3.37Feb 13, 2026: $3.41Feb 17, 2026: $3.10Feb 18, 2026: $2.99Feb 19, 2026: $3.10Feb 20, 2026: $3.16Feb 23, 2026: $3.16Feb 24, 2026: $3.39Feb 25, 2026: $3.44Feb 26, 2026: $3.25Feb 27, 2026: $3.44Mar 2, 2026: $3.40Mar 3, 2026: $3.33Mar 4, 2026: $3.50Mar 5, 2026: $3.70Mar 6, 2026: $3.76Mar 9, 2026: $4.15Mar 10, 2026: $4.66Mar 11, 2026: $4.33Mar 12, 2026: $3.88Mar 13, 2026: $3.69Mar 16, 2026: $3.56Mar 17, 2026: $4.23Mar 18, 2026: $4.05Mar 19, 2026: $4.17Mar 20, 2026: $4.28Mar 23, 2026: $4.07Mar 24, 2026: $3.82Mar 25, 2026: $4.09Mar 26, 2026: $4.31Mar 27, 2026: $4.04Mar 30, 2026: $3.99Mar 31, 2026: $4.13Apr 1, 2026: $4.35Apr 2, 2026: $4.24Apr 6, 2026: $4.07Apr 7, 2026: $3.73Apr 8, 2026: $4.05Apr 9, 2026: $4.07Apr 10, 2026: $4.10Apr 13, 2026: $4.13Apr 14, 2026: $4.20Apr 15, 2026: $4.33Apr 16, 2026: $4.14Apr 17, 2026: $4.29Apr 20, 2026: $4.19Apr 21, 2026: $4.17Apr 22, 2026: $4.42Apr 23, 2026: $4.28Apr 24, 2026: $4.11Apr 27, 2026: $4.21Apr 28, 2026: $4.12Apr 29, 2026: $4.10Apr 30, 2026: $4.07May 1, 2026: $4.19May 4, 2026: $4.21May 5, 2026: $4.20May 6, 2026: $4.38May 7, 2026: $4.29May 8, 2026: $4.43May 11, 2026: $4.50May 12, 2026: $4.34May 13, 2026: $4.23May 14, 2026: $4.00May 15, 2026: $3.94May 18, 2026: $3.68May 19, 2026: $3.64May 20, 2026: $3.77May 21, 2026: $4.04May 22, 2026: $4.04May 26, 2026: $4.00May 27, 2026: $4.03May 28, 2026: $4.14May 29, 2026: $4.31Jun 1, 2026: $4.11Jun 2, 2026: $4.04Jun 3, 2026: $3.97Jun 4, 2026: $4.01Jun 5, 2026: $3.83Jun 8, 2026: $3.71Jun 9, 2026: $3.85Jun 10, 2026: $3.73Jun 11, 2026: $3.88Jun 12, 2026: $4.00Jun 15, 2026: $4.08Jun 16, 2026: $4.04Jun 17, 2026: $4.05Jun 18, 2026: $4.22Jun 22, 2026: $4.12Jun 23, 2026: $4.00Jun 24, 2026: $4.09Jun 25, 2026: $3.99Jun 26, 2026: $4.02Jun 29, 2026: $4.23Jun 30, 2026: $4.67Jul 1, 2026: $4.09Jul 2, 2026: $4.13Jul 6, 2026: $4.03Jul 7, 2026: $3.94Jul 8, 2026: $3.96Jul 9, 2026: $3.96Jul 10, 2026: $4.41Jul 13, 2026: $4.05Jul 14, 2026: $4.02Jul 15, 2026: $3.90Jul 16, 2026: $3.83Jul 17, 2026: $3.82Jul 20, 2026: $3.68Jul 21, 2026: $3.69Jul 22, 2026: $3.70Jul 23, 2026: $3.99Jul 24, 2026: $3.85Jul 27, 2026: $3.94Jul 28, 2026: $3.93Jul 29, 2026: $4.00Jul 30, 2026: $4.00Jul 31, 2026: $3.98Aug 3, 2026: $4.09Aug 4, 2026: $4.29Aug 5, 2026: $4.15Aug 6, 2026: $4.17Aug 7, 2026: $4.64Aug 10, 2026: $4.25Aug 11, 2026: $4.28Aug 12, 2026: $4.29Aug 13, 2026: $4.29Aug 14, 2026: $4.22Aug 17, 2026: $4.30Aug 18, 2026: $4.21Aug 19, 2026: $4.16Aug 20, 2026: $4.03Aug 21, 2026: $4.04Aug 24, 2026: $4.05Aug 25, 2026: $4.16Aug 26, 2026: $4.17Aug 27, 2026: $4.23Aug 28, 2026: $4.04Aug 31, 2026: $4.04Sep 1, 2026: $4.07Sep 2, 2026: $4.04Sep 3, 2026: $4.04Sep 4, 2026: $4.04Sep 8, 2026: $3.51Sep 9, 2026: $3.60Sep 10, 2026: $3.40Sep 11, 2026: $3.50Sep 14, 2026: $3.62Sep 15, 2026: $3.62Sep 16, 2026: $3.51Sep 17, 2026: $3.50Sep 18, 2026: $3.58Sep 21, 2026: $3.50Sep 22, 2026: $3.43Sep 23, 2026: $3.11Sep 24, 2026: $3.00Sep 25, 2026: $3.01Sep 28, 2026: $3.02Sep 29, 2026: $2.90Sep 30, 2026: $2.90Oct 1, 2026: $2.83Oct 2, 2026: $2.83Oct 5, 2026: $2.90Oct 6, 2026: $2.77Oct 7, 2026: $2.81Oct 8, 2026: $2.79Oct 9, 2026: $2.91Oct 12, 2026: $2.82Oct 13, 2026: $2.60Oct 14, 2026: $2.45Oct 15, 2026: $2.64Oct 16, 2026: $2.59Oct 19, 2026: $2.75Oct 20, 2026: $3.02Oct 21, 2026: $3.01Oct 22, 2026: $3.20Oct 23, 2026: $3.24Oct 26, 2026: $3.25Oct 27, 2026: $3.25Oct 28, 2026: $3.35Oct 29, 2026: $3.36Oct 30, 2026: $3.35Nov 2, 2026: $3.35Nov 3, 2026: $3.17Nov 4, 2026: $3.24Nov 5, 2026: $3.07Nov 6, 2026: $3.18Nov 9, 2026: $3.33Nov 10, 2026: $3.25Nov 11, 2026: $3.23Nov 12, 2026: $3.17Nov 13, 2026: $3.12
Nov 13, 2025Low $2.45 · High $4.67Nov 13, 2026
Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. Where prices come from.

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