Fund shareholders of X4 Pharmaceuticals Inc
ISIN US98420X2027 · United States · LEI 549300R0UFVPXWP86U94
- Fund shareholders
- 74
- Of which ETFs
- 7 67 other funds
- Value held
- 96.8M $
- Share of capital
- 22.3 % of 99.1M shares on Jul 31, 2026
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| Fidelity Small Cap Growth Fund Fidelity Securities Fund | 3,386,200 | 13.5M $ | 0.15 % | 3.42 % | as of Jul 31, 2026 ↗ |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 2,599,387 | 12.1M $ | 0.00 % | 2.62 % | as of Jun 30, 2026 ↗ |
| Inception Portfolio MORGAN STANLEY INSTITUTIONAL FUND INC | 2,308,518 | 10.8M $ | 3.82 % | 2.33 % | as of Jun 30, 2026 ↗ |
| iShares Russell 2000 ETF iShares Trust | 1,907,416 | 8.9M $ | 0.01 % | 1.92 % | as of Jun 30, 2026 ↗ |
| EQ/Morgan Stanley Small Cap Growth Portfolio EQ Advisors Trust | 1,817,124 | 8.5M $ | 1.79 % | 1.83 % | as of Jun 30, 2026 ↗ |
| Fidelity Small Cap Growth K6 Fund Fidelity Securities Fund | 1,689,700 | 6.7M $ | 0.15 % | 1.70 % | as of Jul 31, 2026 ↗ |
| Select Biotechnology Portfolio Fidelity Select Portfolios | 1,428,500 | 6.2M $ | 0.12 % | 1.44 % | as of May 31, 2026 ↗ |
| Fidelity Advisor Biotechnology Fund Fidelity Advisor Series VII | 1,341,800 | 5.3M $ | 0.24 % | 1.35 % | as of Jul 31, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 1,032,028 | 4.8M $ | 0.00 % | 1.04 % | as of Jun 30, 2026 ↗ |
| Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 884,763 | 3.5M $ | 0.01 % | 0.89 % | as of Jul 31, 2026 ↗ |
| iShares Russell 2000 Value ETF iShares Trust | 758,220 | 3.5M $ | 0.02 % | 0.76 % | as of Jun 30, 2026 ↗ |
| Fidelity Small Cap Stock Fund Fidelity Concord Street Trust | 504,600 | 2M $ | 0.15 % | 0.51 % | as of Jul 31, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 422,860 | 1.8M $ | 0.00 % | 0.43 % | as of May 31, 2026 ↗ |
| iShares Micro-Cap ETF iShares Trust | 271,214 | 1.3M $ | 0.08 % | 0.27 % | as of Jun 30, 2026 ↗ |
| Schwab Small-Cap Index Fund SCHWAB CAPITAL TRUST | 196,530 | 782.2K $ | 0.01 % | 0.20 % | as of Jul 31, 2026 ↗ |
| Fidelity Total Market Index Fund Fidelity Concord Street Trust | 167,464 | 721.8K $ | 0.00 % | 0.17 % | as of May 31, 2026 ↗ |
| Master Small Cap Index Series Quantitative Master Series LLC | 151,139 | 705.8K $ | 0.01 % | 0.15 % | as of Jun 30, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 124,251 | 535.5K $ | 0.00 % | 0.13 % | as of May 31, 2026 ↗ |
| Fidelity Small Cap Value Index Fund Fidelity Salem Street Trust | 112,837 | 526.9K $ | 0.02 % | 0.11 % | as of Jun 30, 2026 ↗ |
| Nuveen Small Cap Blend Index Fund TIAA-CREF Funds | 107,389 | 427.4K $ | 0.01 % | 0.11 % | as of Jul 31, 2026 ↗ |
| EQ/2000 Managed Volatility Portfolio EQ Advisors Trust | 86,641 | 404.6K $ | 0.01 % | 0.09 % | as of Jun 30, 2026 ↗ |
| U.S. Small Cap Equity Fund RUSSELL INVESTMENT CO | 79,833 | 317.7K $ | 0.03 % | 0.08 % | as of Jul 31, 2026 ↗ |
| Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST | 66,731 | 265.6K $ | 0.00 % | 0.07 % | as of Jul 31, 2026 ↗ |
| LVIP State Street Small-Cap Index Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 59,100 | 276K $ | 0.01 % | 0.06 % | as of Jun 30, 2026 ↗ |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 56,741 | 244.6K $ | 0.00 % | 0.06 % | as of May 31, 2026 ↗ |
| Avantis U.S. Small Cap Equity ETF American Century ETF Trust | 46,744 | 201.5K $ | 0.01 % | 0.05 % | as of May 31, 2026 ↗ |
| VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 42,532 | 198.6K $ | 0.00 % | 0.04 % | as of Jun 30, 2026 ↗ |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 42,268 | 197.4K $ | 0.00 % | 0.04 % | as of Jun 30, 2026 ↗ |
| Small Cap Index Fund Northern Funds | 41,980 | 196K $ | 0.01 % | 0.04 % | as of Jun 30, 2026 ↗ |
| Global X Russell 2000 ETF GLOBAL X FUNDS | 38,483 | 153.2K $ | 0.01 % | 0.04 % | as of Jul 31, 2026 ↗ |
| Invesco RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust | 30,166 | 120.1K $ | 0.00 % | 0.03 % | as of Jul 31, 2026 ↗ |
| STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO STATE STREET INSTITUTIONAL INVESTMENT TRUST | 29,000 | 135.4K $ | 0.00 % | 0.03 % | as of Jun 30, 2026 ↗ |
| MetLife Russell 2000 Index Portfolio Brighthouse Funds Trust II | 27,197 | 127K $ | 0.01 % | 0.03 % | as of Jun 30, 2026 ↗ |
| Small-Cap Index Portfolio PACIFIC SELECT FUND | 23,222 | 108.4K $ | 0.01 % | 0.02 % | as of Jun 30, 2026 ↗ |
| ATM Small Cap Managed Volatility Portfolio EQ Advisors Trust | 22,814 | 106.5K $ | 0.01 % | 0.02 % | as of Jun 30, 2026 ↗ |
| 1290 VT Micro Cap Portfolio EQ Advisors Trust | 18,231 | 85.1K $ | 0.04 % | 0.02 % | as of Jun 30, 2026 ↗ |
| NVIT Small Cap Index Fund Nationwide Variable Insurance Trust | 17,857 | 83.4K $ | 0.01 % | 0.02 % | as of Jun 30, 2026 ↗ |
| Small Cap Index Trust John Hancock Variable Insurance Trust | 16,839 | 78.6K $ | 0.01 % | 0.02 % | as of Jun 30, 2026 ↗ |
| iShares Russell Small/Mid-Cap Index Fund BlackRock Funds | 14,446 | 57.5K $ | 0.00 % | 0.01 % | as of Jul 31, 2026 ↗ |
| DWS Small Cap Index VIP DEUTSCHE DWS INVESTMENTS VIT FUNDS | 12,703 | 59.3K $ | 0.01 % | 0.01 % | as of Jun 30, 2026 ↗ |
| 1290 VT Small Cap Value Portfolio EQ Advisors Trust | 12,524 | 58.5K $ | 0.01 % | 0.01 % | as of Jun 30, 2026 ↗ |
| T. Rowe Price Small-Cap Index Fund T. ROWE PRICE INDEX TRUST, INC. | 12,192 | 56.9K $ | 0.01 % | 0.01 % | as of Jun 30, 2026 ↗ |
| iShares Total U.S. Stock Market Index Fund BlackRock Funds | 11,344 | 45.1K $ | 0.00 % | 0.01 % | as of Jul 31, 2026 ↗ |
| BlackRock Small Cap Index V.I. Fund BlackRock Variable Series Funds, Inc. | 10,917 | 51K $ | 0.01 % | 0.01 % | as of Jun 30, 2026 ↗ |
| Voya RussellTM Small Cap Index Portfolio Voya VARIABLE PORTFOLIOS INC | 10,068 | 47K $ | 0.01 % | 0.01 % | as of Jun 30, 2026 ↗ |
| SA Small Cap Index Portfolio SUNAMERICA SERIES TRUST | 9,468 | 37.7K $ | 0.01 % | 0.01 % | as of Jul 31, 2026 ↗ |
| Victory Extended Market Index Fund Victory Portfolios III | 8,775 | 34.9K $ | 0.00 % | 0.01 % | as of Jul 31, 2026 ↗ |
| Fidelity Small Cap Stock K6 Fund Fidelity Concord Street Trust | 8,308 | 33.1K $ | 0.16 % | 0.01 % | as of Jul 31, 2026 ↗ |
| CVT Russell 2000 Small Cap Index Portfolio Calvert Variable Trust, Inc. | 7,338 | 34.3K $ | 0.01 % | 0.01 % | as of Jun 30, 2026 ↗ |
| Nationwide Small Cap Index Fund Nationwide Mutual Funds | 7,216 | 28.7K $ | 0.01 % | 0.01 % | as of Jul 31, 2026 ↗ |
| Venerable Small Cap Index Fund Venerable Variable Insurance Trust | 6,449 | 30.1K $ | 0.01 % | 0.01 % | as of Jun 30, 2026 ↗ |
| PD Small-Cap Value Index Portfolio PACIFIC SELECT FUND | 6,376 | 29.8K $ | 0.02 % | 0.01 % | as of Jun 30, 2026 ↗ |
| SmallCap Value Fund II Principal Funds, Inc | 6,060 | 24.1K $ | 0.00 % | 0.01 % | as of Jul 31, 2026 ↗ |
| Voya VACS Index Series SC Portfolio Voya VARIABLE PORTFOLIOS INC | 5,770 | 26.9K $ | 0.01 % | 0.01 % | as of Jun 30, 2026 ↗ |
| EQ/AB Small Cap Growth Portfolio EQ Advisors Trust | 4,860 | 22.7K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| EQ/Small Company Index Portfolio EQ Advisors Trust | 4,860 | 22.7K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Small-Cap Equity Portfolio PACIFIC SELECT FUND | 3,666 | 17.1K $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Strategic Equity Allocation Trust John Hancock Variable Insurance Trust | 3,654 | 17.1K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| EQ/Franklin Small Cap Value Managed Volatility Portfolio EQ Advisors Trust | 2,817 | 13.2K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Penn Series Small Cap Index Fund Penn Series Funds Inc | 2,400 | 11.2K $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| State Street Total Return V.I.S. Fund STATE STREET VARIABLE INSURANCE SERIES FUNDS INC | 2,041 | 9.5K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Total Stock Market Index Trust John Hancock Variable Insurance Trust | 1,505 | 7K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| ULTRA SMALL CAP PROFUND ProFunds | 1,041 | 4.1K $ | 0.01 % | 0.00 % | as of Jul 31, 2026 ↗ |
| State Street Balanced Index Fund STATE STREET INSTITUTIONAL INVESTMENT TRUST | 1,031 | 4.8K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Knights of Columbus U.S. ALL CAP INDEX FUND ADVISORS' INNER CIRCLE III | 471 | 1.9K $ | 0.00 % | 0.00 % | as of Jul 31, 2026 ↗ |
| Russell 2000 2x Strategy Fund Rydex Dynamic Funds | 435 | 2K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| PROFUND VP ULTRA SMALL CAP ProFunds | 332 | 1.6K $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| PROFUND VP SMALL CAP ProFunds | 217 | 1K $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Russell 2000 Fund Rydex Series Funds | 200 | 934 $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Russell 2000 1.5x Strategy Fund Rydex Series Funds | 120 | 560.4 $ | 0.01 % | 0.00 % | as of Jun 30, 2026 ↗ |
| SMALL-CAP PROFUND ProFunds | 68 | 270.6 $ | 0.00 % | 0.00 % | as of Jul 31, 2026 ↗ |
| Russell 2000(R) 1.5x Strategy Fund Rydex Variable Trust | 23 | 107.4 $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| ProShares UltraPro Russell2000 ProShares Trust | 1 | 4.3 $ | 0.00 % | as of May 31, 2026 ↗ | |
| ProShares Russell 2000 High Income ETF ProShares Trust | 1 | 4.3 $ | 0.00 % | as of May 31, 2026 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table ranks funds by number of shares. This one ranks them by the weight of the company in each fund.
| Fund | Weight in fund | |
|---|---|---|
| Inception Portfolio MORGAN STANLEY INSTITUTIONAL FUND INC | 3.82 % | as of Jun 30, 2026 ↗ |
| EQ/Morgan Stanley Small Cap Growth Portfolio EQ Advisors Trust | 1.79 % | as of Jun 30, 2026 ↗ |
| Fidelity Advisor Biotechnology Fund Fidelity Advisor Series VII | 0.24 % | as of Jul 31, 2026 ↗ |
| Fidelity Small Cap Stock K6 Fund Fidelity Concord Street Trust | 0.16 % | as of Jul 31, 2026 ↗ |
| Fidelity Small Cap Growth Fund Fidelity Securities Fund | 0.15 % | as of Jul 31, 2026 ↗ |
| Fidelity Small Cap Stock Fund Fidelity Concord Street Trust | 0.15 % | as of Jul 31, 2026 ↗ |
| Fidelity Small Cap Growth K6 Fund Fidelity Securities Fund | 0.15 % | as of Jul 31, 2026 ↗ |
| Select Biotechnology Portfolio Fidelity Select Portfolios | 0.12 % | as of May 31, 2026 ↗ |
| iShares Micro-Cap ETF iShares Trust | 0.08 % | as of Jun 30, 2026 ↗ |
| 1290 VT Micro Cap Portfolio EQ Advisors Trust | 0.04 % | as of Jun 30, 2026 ↗ |
Quarter after quarter
Each row is one quarter of SEC filings, newest first. The change compares each quarter with the one before.
| Quarter | Shareholders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q3 | 74 | +53 | 22,138,016 | +33.2 % |
| 2026Q2 | 21 | +1 | 16,616,258 | +8.0 % |
| 2026Q1 | 20 | +6 | 15,385,163 | +125.9 % |
| 2025Q4 | 14 | -19 | 6,811,409 | +1,424.9 % |
| 2025Q3 | 33 | +21 | 446,689 | +457.5 % |
| 2025Q2 | 12 | 80,128 |
Institutional managers
77 managers declare this company to the SEC (Form 13F). The table shows the 25 largest.
| Manager | Shares | Value | |
|---|---|---|---|
| MORGAN STANLEY | 9,466,992 | 39.1M $ | as of Mar 31, 2026 |
| Empery Asset Management, LP | 8,944,118 | 36.9M $ | as of Mar 31, 2026 |
| FMR LLC | 8,103,400 | 33.5M $ | as of Mar 31, 2026 |
| Bain Capital Life Sciences Investors, LLC | 7,967,454 | 32.9M $ | as of Mar 31, 2026 |
| PERCEPTIVE ADVISORS LLC | 6,737,648 | 27.8M $ | as of Mar 31, 2026 |
| Saturn V Capital Management LP | 6,456,646 | 26.7M $ | as of Mar 31, 2026 |
| Deep Track Capital, LP | 6,339,535 | 26.2M $ | as of Mar 31, 2026 |
| Kalehua Capital Management LLC | 3,722,840 | 15.4M $ | as of Mar 31, 2026 |
| BRAIDWELL LP | 3,272,954 | 13.5M $ | as of Mar 31, 2026 |
| Rosalind Advisors, Inc. | 3,214,766 | 13.3M $ | as of Mar 31, 2026 |
| Blackstone Inc. | 2,681,922 | 11.1M $ | as of Mar 31, 2026 |
| Trails Edge Capital Partners, LP | 2,571,478 | 10.6M $ | as of Mar 31, 2026 |
| Nantahala Capital Management, LLC | 2,449,468 | 10.1M $ | as of Mar 31, 2026 |
| BVF INC/IL | 2,233,742 | 9.2M $ | as of Mar 31, 2026 |
| SAMSARA BIOCAPITAL, LLC | 1,832,566 | 7.6M $ | as of Mar 31, 2026 |
| BlackRock, Inc. | 1,211,794 | 5M $ | as of Mar 31, 2026 |
| MILLENNIUM MANAGEMENT LLC | 1,210,514 | 5M $ | as of Mar 31, 2026 |
| Woodline Partners LP | 1,001,095 | 4.1M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 939,726 | 3.9M $ | as of Mar 31, 2026 |
| GOLDMAN SACHS GROUP INC | 882,134 | 3.6M $ | as of Mar 31, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 856,222 | 3.5M $ | as of Mar 31, 2026 |
| STEMPOINT CAPITAL LP | 850,742 | 3.5M $ | as of Mar 31, 2026 |
| STATE STREET CORP | 403,534 | 1.7M $ | as of Mar 31, 2026 |
| MARSHALL WACE, LLP | 336,834 | 1.4M $ | as of Mar 31, 2026 |
| Stonepine Capital Management, LLC | 335,309 | 1.4M $ | as of Mar 31, 2026 |
Declared shareholders of X4 Pharmaceuticals Inc
There are 4 beneficial ownership filings. These stakes do not add up. An asset manager that files includes its own funds, which already appear among the funds on this page.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| Deep Track Capital, LP and 3 others | 8.33 % | 8,040,894 | as of Jun 30, 2026 · SCHEDULE 13G |
| Perceptive Advisors LLC and 2 others | 8.10 % | 8,085,006 | as of Jun 30, 2026 · SCHEDULE 13G |
| BlackRock, Inc. | 5.90 % | 5,529,573 | as of Jun 30, 2026 · SCHEDULE 13G |
| Venrock Healthcare Capital Partners III, L.P. and 6 others | 5.60 % | 5,555,047 | as of Sep 14, 2026 · SCHEDULE 13G |
Cite this page
Titelia. "Fund shareholders of X4 Pharmaceuticals Inc". https://titelia.com/en/stocks/x4-pharmaceuticals-inc-US98420X2027