X4 Pharmaceuticals, Inc
XFOR- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001501697
In the last 90 days, X4 Pharmaceuticals, Inc insiders filed 0 open-market purchases and 3 sales; 89 institutions reported holding it in 13F filings for Q2 2026, worth $463.0M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by X4 Pharmaceuticals, Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 3 filings
- 3 insiders, $356.5K in total
- Insiders trading
- 3
- Net value
- −$356.5K
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for X4 Pharmaceuticals, Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Volpone John | President | 265,305 | Aug 13, 2026 | 2 |
| Craig Adam R | Executive Chairman | 328,651 | Aug 13, 2026 | 3 |
| Kirske David | Chief Financial Officer | 167,750 | Jul 1, 2026 | 3 |
| Gold Kelly | Director | – | Jul 1, 2026 | 1 |
| Bridger Gary | Director | 4,722 | Jan 7, 2026 | 1 |
| Wyzga Michael S | Director | 5,555 | Jan 5, 2026 | 1 |
| Stewart Murray | Director | 7,883 | Jan 5, 2026 | 1 |
| de Craecker Francoise | Director | 4,722 | Jan 5, 2026 | 1 |
| Thoren Natasha Fay | Chief Legal Officer | 9,462 | Jul 3, 2025 | 0 |
| McGirr David W J | Director | 4,722 | Jun 10, 2025 | 0 |
| Woods Keith | Director | 6,000 | Jun 10, 2025 | 0 |
| Baldry Mark | Chief Commercial Officer | 25,337 | Jun 3, 2025 | 0 |
| Mostafa Adam S. | Chief Financial Officer | 850,000 | Feb 14, 2025 | 0 |
| Ragan Paula | President and CEO | 3,337,386 | Feb 14, 2025 | 0 |
| Arbet-Engels Christophe | Chief Medical Officer | 864,207 | Feb 14, 2025 | 0 |
| DiBiase Mary | Chief Operating Officer | 1,140,980 | Feb 14, 2025 | 0 |
| Taveras Arthur | Chief Scientific Officer | 388,026 | Oct 8, 2024 | 0 |
| Lawton Alison Frances | Director | 96,667 | Jun 11, 2024 | 0 |
| Aliski William | Director | 96,667 | Jun 11, 2024 | 0 |
| Meisner Derek M | Chief Legal Officer | 145,155 | Aug 19, 2022 | 0 |
| Cadavid Diego | Chief Medical Officer | 104,107 | Mar 1, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Feb 15, 2023 (view filing) | Feb 13 | 2 days | Mostafa Adam S.Chief Financial Officer | SSale | −27.7K | $0.93 | −$25.8K | −15.9%146.2K after | |
| Feb 15, 2023 (view filing) | Feb 13 | 2 days | Ragan PaulaPresident and CEO | SSale | −21.7K | $0.93 | −$20.2K | −3.4%613.2K after | |
| Aug 19, 2022 (view filing) | Aug 17 | 2 days | Meisner Derek MChief Legal Officer | SSale | −8.33K | – | – | −5.4%145.2K after | |
| Aug 19, 2022 (view filing) | Aug 17 | 2 days | DiBiase MaryChief Operating Officer | SSale | −1.71K | – | – | −1.0%177.9K after | |
| Aug 19, 2022 (view filing) | Aug 17 | 2 days | Ragan PaulaPresident and CEO | SSale | −13.4K | – | – | −2.1%634.9K after | |
| Aug 19, 2022 (view filing) | Aug 17 | 2 days | Mostafa Adam S.Chief Financial Officer | SSale | −10.8K | – | – | −5.9%173.9K after | |
| Jul 1, 2022 (view filing) | Jun 30 | 1 day | Mostafa Adam S.Chief Financial Officer | SSale | −2.64K | – | – | −1.4%184.8K after | |
| Jul 1, 2022 (view filing) | Jun 30 | 1 day | DiBiase MaryChief Operating Officer | SSale | −1.58K | – | – | −0.9%179.6K after | |
| Jun 27, 2022 (view filing) | Jun 24 | 3 days | Mostafa Adam S.Chief Financial Officer | SSale | −5.42K | – | – | −2.8%187.4K after | |
| Jun 27, 2022 (view filing) | Jun 24 | 3 days | DiBiase MaryChief Operating Officer | SSale | −856 | – | – | −0.5%181.2K after | |
| Jun 27, 2022 (view filing) | Jun 24 | 3 days | Ragan PaulaPresident and CEO | SSale | −6.72K | – | – | −1.0%648.4K after | |
| Jun 27, 2022 (view filing) | Jun 24 | 3 days | Meisner Derek MChief Legal Officer | SSale | −4.17K | – | – | −2.6%153.5K after | |
| Jun 17, 2022 (view filing) | Jun 16 | 1 day | Mostafa Adam S.Chief Financial Officer | SSale | −5.42K | – | – | −2.7%192.8K after | |
| Jun 17, 2022 (view filing) | Jun 16 | 1 day | Ragan PaulaPresident and CEO | SSale | −6.72K | – | – | −1.0%655.1K after | |
| Jun 17, 2022 (view filing) | Jun 16 | 1 day | DiBiase MaryChief Operating Officer | SSale | −856 | – | – | −0.5%182.0K after | |
| Jun 17, 2022 (view filing) | Jun 16 | 1 day | Meisner Derek MChief Legal Officer | SSale | −4.17K | – | – | −2.6%157.7K after | |
| Jun 6, 2022 (view filing) | Jun 3 | 3 days | Ragan PaulaPresident and CEO | SSale | −6.29K | $1.21 | −$7.61K | −0.9%661.8K after | |
| Feb 14, 2022 (view filing) | Feb 11 | 3 days | Mostafa Adam S.Chief Financial Officer | SSale | −27.7K | – | – | −22.9%93.2K after | |
| Feb 14, 2022 (view filing) | Feb 11 | 3 days | Meisner Derek MChief Legal Officer | SSale | −15.9K | – | – | −21.9%56.8K after | |
| Feb 14, 2022 (view filing) | Feb 11 | 3 days | DiBiase MaryChief Operating Officer | SSale | −12.5K | – | – | −13.9%77.9K after | |
| Feb 14, 2022 (view filing) | Feb 11 | 3 days | Ragan PaulaPresident and CEO | SSale | −21.7K | – | – | −4.6%447.3K after | |
| Feb 14, 2022 (view filing) | Feb 11 | 3 days | Cadavid DiegoChief Medical Officer | SSale | −928 | – | – | −11.5%7.11K after | |
| Aug 19, 2021 (view filing) | Aug 17 | 2 days | Mostafa Adam S.Chief Financial Officer | SSale | −10.8K | $5.10 | −$55.2K | −8.2%120.9K after | |
| Aug 19, 2021 (view filing) | Aug 17 | 2 days | Meisner Derek MGeneral Counsel | SSale | −8.33K | $5.10 | −$42.5K | −10.3%72.7K after | |
| Aug 19, 2021 (view filing) | Aug 17 | 2 days | Ragan PaulaPresident and CEO | SSale | −13.4K | $5.10 | −$68.6K | −2.8%469.0K after | |
| Jul 16, 2021 (view filing) | Jul 15 | 1 day | Ragan PaulaPresident and CEO | SSale | −13.4K | $5.78 | −$77.7K | −2.7%482.5K after | |
| Jul 1, 2021 (view filing) | Jun 30 | 1 day | Mostafa Adam S.Chief Financial Officer | SSale | −2.64K | $6.64 | −$17.5K | −2.0%131.8K after |