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.
13F holders, Q3 2025
Institutional positions in X4 Pharmaceuticals, Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 42
- −10 vs. Q2 2025
- Shares held
- 16.2M
- +13.4M (+476.2%) vs. Q2 2025
- Total value
- $55.3M
- +$49.9M (+937.2%) vs. Q2 2025
- New holders
- 11
- 11 more added
- Sold out
- 21
- 10 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting XFOR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 89 | $463.0M |
| Q1 2026 | 84 | $388.1M |
| Q4 2025 | 79 | $357.7M |
| Q3 2025 | 42 | $55.3M |
| Q2 2025 | 52 | $5.33M |
| Q1 2025 | 94 | $23.3M |
| Q4 2024 | 90 | $73.2M |
| Q3 2024 | 98 | $67.3M |
| Q2 2024 | 99 | $58.9M |
| Q1 2024 | 98 | $143.2M |
| Q4 2023 | 93 | $81.2M |
| Q3 2023 | 91 | $122.6M |
| Q2 2023 | 96 | $219.1M |
| Q1 2023 | 59 | $53.6M |
| Q4 2022 | 54 | $60.2M |
| Q3 2022 | 59 | $66.9M |
| Q2 2022 | 51 | $15.5M |
| Q1 2022 | 56 | $28.6M |
| Q4 2021 | 52 | $40.2M |
| Q3 2021 | 52 | $85.7M |
| Q2 2021 | 63 | $107.8M |
| Q1 2021 | 61 | $138.7M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding X4 Pharmaceuticals, Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| HighMark Wealth Management LLC | 6 | $21 | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 32 | $109 | 0.00% | −730−95.8% | Reduced |
| JPMorgan Chase & Co | 33 | $113 | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 33 | $113 | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 33 | $113 | 0.00% | +33 | New |
| Jones Financial Companies LLLP | 38 | $131 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 216 | $739 | 0.00% | 00.0% | Unchanged |
| Ronald Blue Trust, Inc. | 284 | $971 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 554 | $1.90K | 0.00% | −82−12.9% | Reduced |
| Bleichroeder LP | 595 | $2.04K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 729 | $2.49K | 0.00% | −8,998−92.5% | Reduced |
| TD Waterhouse Canada Inc. | 1,500 | $5.37K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 1,759 | $6.02K | 0.00% | −34−1.9% | Reduced |
| CIBC Private Wealth Group, LLC | 2,166 | $7.41K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 2,533 | $9.00K | 0.00% | −552−17.9% | Reduced |
| Point72 Asia (Singapore) Pte. Ltd. | 2,914 | $9.97K | 0.00% | +2,914 | New |
| Morgan Stanley | 3,728 | $12.8K | 0.00% | −7,196−65.9% | Reduced |
| Group One Trading, L.P. | 3,998 | $13.7K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 10,679 | $36.5K | 0.00% | +5,476+105.2% | Added |
| Two Sigma Investments, LP | 13,868 | $47.4K | 0.00% | +13,868 | New |
| Renaissance Technologies LLC | 19,177 | $65.6K | 0.00% | +1,811+10.4% | Added |
| Bank of America Corp | 19,304 | $66.0K | 0.00% | −61,012−76.0% | Reduced |
| Point72 Asset Management, L.P. | 21,666 | $74.1K | 0.00% | −10.0% | Reduced |
| State Street Corp | 38,734 | $132.5K | 0.00% | +23,200+149.3% | Added |
| BlackRock, Inc. | 61,934 | $211.8K | 0.00% | −117,294−65.4% | Reduced |
| Millennium Management LLC | 64,795 | $221.6K | 0.00% | −13,266−17.0% | Reduced |
| Geode Capital Management, LLC | 79,658 | $272.5K | 0.00% | +30,512+62.1% | Added |
| Palumbo Wealth Management LLC | 95,327 | $326.0K | 0.10% | +95,327 | New |
| UBS Group AG | 159,835 | $546.6K | 0.00% | +49,876+45.4% | Added |
| Pale Fire Capital SE | 180,851 | $618.5K | 0.07% | +120,800+201.2% | Added |
| Acorn Capital Advisors, LLC | 273,349 | $934.9K | 0.47% | +119,619+77.8% | Added |
| Boothbay Fund Management, LLC | 343,963 | $1.18M | 0.03% | +343,963 | New |
| Vanguard Group Inc | 410,485 | $1.40M | 0.00% | +178,593+77.0% | Added |
| StemPoint Capital LP | 555,411 | $1.90M | 0.38% | +555,411 | New |
| Kingdon Capital Management, L.L.C. | 933,332 | $3.19M | 0.50% | +700,000+300.0% | Added |
| Stonepine Capital Management, LLC | 1,056,338 | $3.61M | 2.94% | +1,056,338 | New |
| Deep Track Capital, LP | 1,122,484 | $3.84M | 0.11% | +1,122,484 | New |
| Rosalind Advisors, Inc. | 1,544,607 | $5.28M | 1.92% | +1,544,607 | New |
| Nantahala Capital Management, LLC | 2,228,350 | $7.62M | 0.47% | +2,228,350 | New |
| BVF Inc | 2,233,742 | $7.64M | 0.31% | +2,233,742 | New |
| NEA Management Company, LLC | 2,233,743 | $7.64M | 0.42% | +1,734,184+347.1% | Added |
| Bain Capital Life Sciences Investors, LLC | 2,436,588 | $8.33M | 0.55% | +1,872,729+332.1% | Added |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −132,724−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −97,344−100.0% | Sold out |
| UBS Oconnor LLC | 0 | $0 | 0.00% | −80,000−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −38,982−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −34,821−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −26,382−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −18,864−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −12,587−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −11,261−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −10,548−100.0% | Sold out |
| CWM, LLC | 0 | $0 | 0.00% | −2,414−100.0% | Sold out |
| FMR LLC | 0 | $0 | 0.00% | −1,697−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −1,120−100.0% | Sold out |
| Wells Fargo & Company | 0 | $0 | 0.00% | −348−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −149−100.0% | Sold out |
| Nisa Investment Advisors, LLC | 0 | $0 | 0.00% | −139−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −66−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −64−100.0% | Sold out |
| IFP Advisors, Inc | 0 | $0 | 0.00% | 0 | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −23−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |