XFORX4 PHARMACEUTICALS INC
CUSIP 98420X202 · Yahoo Finance ↗ · Google Finance ↗
X4 Pharmaceuticals Inc (XFOR) has 82 institutional holders in Filings Flow’s 13F database, together reporting 93.75M shares worth $386M as of Q1 2026. The largest reported holders are Empery Asset Management, LP, FMR LLC, and Bain Capital Life Sciences Investors, LLC.
Institutional Holders
82
Q1 2026
Reported Value
$386M
Ticker
XFOR
Quarters Tracked
3
Ownership Trend
Institutional holders
Total reported value
Holders
Mixed quarters
| Manager | % of Portfolio | Value | Shares | Quarter |
|---|---|---|---|---|
| Kalehua Capital Management LLC$260M AUM | 21.76% | $31M | 7.45M | Q1 2026OLDER |
| Rosalind Advisors, Inc.$249M AUM | 5.33% | $13M | 3.21M | Q1 2026OLDER |
| Saturn V Capital Management LP$552M AUM | 4.83% | $27M | 6.46M | Q1 2026OLDER |
| Bain Capital Life Sciences Investors, LLC$1.1B AUM | 2.97% | $33M | 7.97M | Q1 2026OLDER |
| Trails Edge Capital Partners, LP$437M AUM | 2.43% | $11M | 2.57M | Q1 2026OLDER |
| STEMPOINT CAPITAL LP$1.0B AUM | 1.35% | $7M | 1.70M | Q1 2026OLDER |
| Samsara BioCapital, LLC$1.0B AUM | 0.74% | $8M | 1.83M | Q1 2026OLDER |
| Stonepine Capital Management, LLC$250M AUM | 0.55% | $1M | 335.3K | Q1 2026OLDER |
| PERCEPTIVE ADVISORS LLC$5.1B AUM | 0.54% | $28M | 6.74M | Q1 2026OLDER |
| BRAIDWELL LP$3.0B AUM | 0.45% | $14M | 3.27M | Q1 2026OLDER |
| Deep Track Capital, LP$6.1B AUM | 0.43% | $26M | 6.34M | Q1 2026OLDER |
| KINGDON CAPITAL MANAGEMENT, L.L.C.$911M AUM | 0.40% | $3M | 933.3K | Q3 2025OLDER |
| Nantahala Capital Management, LLC$2.7B AUM | 0.37% | $10M | 2.45M | Q1 2026OLDER |
| BVF INC/IL$3.1B AUM | 0.29% | $9M | 2.23M | Q1 2026OLDER |
| SILVERARC CAPITAL MANAGEMENT, LLC$980M AUM | 0.20% | $1M | 357.4K | Q4 2025OLDER |
| Siren, L.L.C.$3.6B AUM | 0.18% | $6M | 1.50M | Q4 2025OLDER |
| Palumbo Wealth Management LLC$410M AUM | 0.13% | $541,088 | 131.0K | Q1 2026OLDER |
| Dynamic Technology Lab Private Ltd$615M AUM | 0.06% | $384,667 | 36.2K | Q1 2026OLDER |
| Pale Fire Capital SE$1.1B AUM | 0.06% | $692,147 | 167.6K | Q1 2026OLDER |
| Venrock Adviser, LLC$2.7B AUM | 0.05% | $1M | 330.5K | Q1 2026OLDER |
| Blackstone Inc.$25.6B AUM | 0.04% | $11M | 2.68M | Q1 2026OLDER |
| Catalyst Funds Management Pty Ltd$591M AUM | 0.03% | $195,692 | 47.4K | Q1 2026OLDER |
| Diametric Capital, LP$385M AUM | 0.03% | $119,658 | 29.0K | Q1 2026OLDER |
| Affinity Asset Advisors, LLC$1.9B AUM | 0.03% | $598,850 | 145.0K | Q1 2026OLDER |
| BOOTHBAY FUND MANAGEMENT, LLC$7.7B AUM | 0.02% | $1M | 344.0K | Q3 2025OLDER |
| Woodline Partners LP$26.4B AUM | 0.02% | $4M | 1.00M | Q1 2026OLDER |
| Pettinga Financial Advisors LLC$624M AUM | 0.01% | $46,700 | 10.0K | Q2 2026 |
| Susquehanna Portfolio Strategies, LLC$6.7B AUM | 0.01% | $423,734 | 102.6K | Q1 2026OLDER |
| Brevan Howard Capital Management LP$11.3B AUM | 0.00% | $525,836 | 127.3K | Q1 2026OLDER |
| Point72 Asset Management, L.P.$78.1B AUM | 0.00% | $3M | 808.2K | Q4 2025OLDER |
| Indivisible Partners$1.1B AUM | 0.00% | $37,000 | 10.0K | Q1 2026OLDER |
| Lighthouse Investment Partners, LLC$2.9B AUM | 0.00% | $88,800 | 22.2K | Q4 2025OLDER |
| MILLENNIUM MANAGEMENT LLC$240.3B AUM | 0.00% | $5M | 1.21M | Q1 2026OLDER |
| MORGAN STANLEY$1.67T AUM | 0.00% | $33M | 8.21M | Q1 2026OLDER |
| FMR LLC$1.90T AUM | 0.00% | $33M | 8.10M | Q1 2026OLDER |
| Point72 Asia (Singapore) Pte. Ltd.$646M AUM | 0.00% | $9,966 | 2.9K | Q3 2025OLDER |
| WINTON GROUP Ltd$2.9B AUM | 0.00% | $43,778 | 10.6K | Q1 2026OLDER |
| OMERS ADMINISTRATION Corp$15.6B AUM | 0.00% | $236,649 | 57.3K | Q1 2026OLDER |
| SummitTX Capital, L.P.$3.2B AUM | 0.00% | $46,256 | 11.2K | Q1 2026OLDER |
| MARSHALL WACE, LLP$100.4B AUM | 0.00% | $1M | 336.8K | Q1 2026OLDER |
| Qube Research & Technologies Ltd$89.9B AUM | 0.00% | $904,280 | 219.0K | Q1 2026OLDER |
| Hudson Bay Capital Management LP$29.0B AUM | 0.00% | $207,685 | 50.3K | Q1 2026OLDER |
| Jump Financial, LLC$7.5B AUM | 0.00% | $50,869 | 12.3K | Q1 2026OLDER |
| Schonfeld Strategic Advisors LLC$14.2B AUM | 0.00% | $80,592 | 19.5K | Q1 2026OLDER |
| Jefferies Financial Group Inc.$14.6B AUM | 0.00% | $80,428 | 19.5K | Q1 2026OLDER |
| State of Wyoming$844M AUM | 0.00% | $4,398 | 1.1K | Q1 2026OLDER |
| VANGUARD FIDUCIARY TRUST CO$396.1B AUM | 0.00% | $2M | 480.7K | Q1 2026OLDER |
| ExodusPoint Capital Management, LP$12.6B AUM | 0.00% | $60,723 | 14.7K | Q1 2026OLDER |
| Vanguard Personalized Indexing Management, LLC$10.2B AUM | 0.00% | $47,598 | 11.5K | Q1 2026OLDER |
| Bleichroeder LP$579M AUM | 0.00% | $2,457 | 595 | Q1 2026OLDER |
| GOLDMAN SACHS GROUP INC$870.9B AUM | 0.00% | $4M | 882.1K | Q1 2026OLDER |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP$893.3B AUM | 0.00% | $4M | 856.2K | Q1 2026OLDER |
| VANGUARD CAPITAL MANAGEMENT LLC$4.04T AUM | 0.00% | $14M | 3.50M | Q1 2026OLDER |
| BALYASNY ASSET MANAGEMENT L.P.$77.1B AUM | 0.00% | $258,020 | 64.5K | Q4 2025OLDER |
| GEODE CAPITAL MANAGEMENT, LLC$1.61T AUM | 0.00% | $4M | 939.7K | Q1 2026OLDER |
| VANGUARD GROUP INC$6.90T AUM | 0.00% | $14M | 3.42M | Q4 2025OLDER |
| UBS Group AG$666.3B AUM | 0.00% | $1M | 267.3K | Q1 2026OLDER |
| Man Group plc$55.1B AUM | 0.00% | $96,748 | 24.2K | Q4 2025OLDER |
| Fortitude Family Office, LLC$448M AUM | 0.00% | $548 | 137 | Q4 2025OLDER |
| SIGNATUREFD, LLC$6.5B AUM | 0.00% | $8,243 | 2.0K | Q1 2026OLDER |
| NORTHERN TRUST CORP$756.6B AUM | 0.00% | $736,111 | 178.2K | Q1 2026OLDER |
| BlackRock, Inc.$5.72T AUM | 0.00% | $5M | 1.21M | Q1 2026OLDER |
| RENAISSANCE TECHNOLOGIES LLC$63.9B AUM | 0.00% | $65,585 | 19.2K | Q3 2025OLDER |
| STIFEL FINANCIAL CORP$108.8B AUM | 0.00% | $89,989 | 21.8K | Q1 2026OLDER |
| CITADEL ADVISORS LLC$618.5B AUM | 0.00% | $514,700 | 128.7K | Q4 2025OLDER |
| Vanguard Global Advisers, LLC$186.5B AUM | 0.00% | $136,195 | 33.0K | Q1 2026OLDER |
| CITIGROUP INC$234.5B AUM | 0.00% | $147,709 | 35.8K | Q1 2026OLDER |
| STATE STREET CORP$2.90T AUM | 0.00% | $2M | 403.5K | Q1 2026OLDER |
| Squarepoint Ops LLC$85.1B AUM | 0.00% | $50,072 | 12.5K | Q4 2025OLDER |
| TWO SIGMA INVESTMENTS, LP$123.9B AUM | 0.00% | $57,275 | 13.9K | Q1 2026OLDER |
| BANK OF AMERICA CORP /DE/$1.37T AUM | 0.00% | $622,292 | 150.7K | Q1 2026OLDER |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC$654.5B AUM | 0.00% | $275,673 | 66.7K | Q1 2026OLDER |
| Creative Planning$147.4B AUM | 0.00% | $57,072 | 13.8K | Q1 2026OLDER |
| TD Waterhouse Canada Inc.$33.7B AUM | 0.00% | $5,370 | 1.5K | Q3 2025OLDER |
| JANE STREET GROUP, LLC$777.2B AUM | 0.00% | $153,401 | 37.1K | Q1 2026OLDER |
| Tower Research Capital LLC (TRC)$3.8B AUM | 0.00% | $743 | 180 | Q1 2026OLDER |
| QUADRANT CAPITAL GROUP LLC$3.3B AUM | 0.00% | $529 | 128 | Q1 2026OLDER |
| CIBC Private Wealth Group LLC$59.2B AUM | 0.00% | $8,664 | 2.2K | Q4 2025OLDER |
| Farther Finance Advisors, LLC$10.6B AUM | 0.00% | $1,440 | 331 | Q1 2026OLDER |
| Blue Trust, Inc.$8.7B AUM | 0.00% | $1,173 | 284 | Q1 2026OLDER |
| Invesco Ltd.$653.3B AUM | 0.00% | $82,468 | 20.0K | Q1 2026OLDER |
| HighMark Wealth Management LLC$246M AUM | 0.00% | $24 | 6 | Q1 2026OLDER |
| BNP PARIBAS FINANCIAL MARKETS$205.8B AUM | 0.00% | $19,642 | 4.8K | Q1 2026OLDER |
| Parallel Advisors, LLC$5.6B AUM | 0.00% | $479 | 116 | Q2 2026 |
| SBI Securities Co., Ltd.$3.6B AUM | 0.00% | $223 | 54 | Q1 2026OLDER |
| GROUP ONE TRADING LLC$52.2B AUM | 0.00% | $2,941 | 712 | Q1 2026OLDER |
| Allworth Financial LP$24.7B AUM | 0.00% | $1,281 | 310 | Q1 2026OLDER |
| PNC FINANCIAL SERVICES GROUP, INC.$173.2B AUM | 0.00% | $7,265 | 1.8K | Q1 2026OLDER |
| Russell Investments Group, Ltd.$93.1B AUM | 0.00% | $3,011 | 729 | Q1 2026OLDER |
| BARCLAYS PLC$416.3B AUM | 0.00% | $11,622 | 2.8K | Q1 2026OLDER |
| NewEdge Advisors, LLC$27.7B AUM | 0.00% | $132 | 33 | Q4 2025OLDER |
| Rockefeller Capital Management L.P.$56.4B AUM | 0.00% | $136 | 33 | Q1 2026OLDER |
| JONES FINANCIAL COMPANIES LLLP$208.1B AUM | 0.00% | $154 | 38 | Q1 2026OLDER |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$162.4B AUM | 0.00% | $21 | 5 | Q1 2026OLDER |
| JPMORGAN CHASE & CO$1.56T AUM | 0.00% | $132 | 33 | Q1 2026OLDER |
| ROYAL BANK OF CANADA$570.1B AUM | — | $0 | 115 | Q1 2026OLDER |
Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.