Fund shareholders of X4 PHARMACEUTICALS INC
ISIN US98420X2027 · United States · LEI 549300R0UFVPXWP86U94
- Fund shareholders
- 21
- Of which ETFs
- 2 19 other funds
- Value held
- 66.5M $
- Share of capital
- 16.8 % 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 | 13.8M $ | 0.16 % | 3.42 % | as of Apr 30, 2026 ↗ |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 2,485,887 | 10.3M $ | 0.00 % | 2.51 % | as of Mar 31, 2026 ↗ |
| Inception Portfolio MORGAN STANLEY INSTITUTIONAL FUND INC | 2,333,406 | 9.6M $ | 4.06 % | 2.35 % | as of Mar 31, 2026 ↗ |
| EQ/Morgan Stanley Small Cap Growth Portfolio EQ Advisors Trust | 1,817,124 | 7.5M $ | 1.94 % | 1.83 % | as of Mar 31, 2026 ↗ |
| Fidelity Small Cap Growth K6 Fund Fidelity Securities Fund | 1,689,700 | 6.9M $ | 0.16 % | 1.70 % | as of Apr 30, 2026 ↗ |
| Select Biotechnology Portfolio Fidelity Select Portfolios | 1,685,700 | 5.8M $ | 0.11 % | 1.70 % | as of Feb 28, 2026 ↗ |
| Fidelity Advisor Biotechnology Fund Fidelity Advisor Series VII | 1,341,800 | 5.5M $ | 0.29 % | 1.35 % | as of Apr 30, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 920,083 | 3.8M $ | 0.00 % | 0.93 % | as of Mar 31, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 405,184 | 1.4M $ | 0.00 % | 0.41 % | as of Feb 28, 2026 ↗ |
| Fidelity Total Market Index Fund Fidelity Concord Street Trust | 167,464 | 576.1K $ | 0.00 % | 0.17 % | as of Feb 28, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 139,631 | 480.3K $ | 0.00 % | 0.14 % | as of Feb 28, 2026 ↗ |
| Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST | 66,731 | 271.6K $ | 0.00 % | 0.07 % | as of Apr 30, 2026 ↗ |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 56,741 | 195.2K $ | 0.00 % | 0.06 % | as of Feb 28, 2026 ↗ |
| VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 48,782 | 201.5K $ | 0.00 % | 0.05 % | as of Mar 31, 2026 ↗ |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 42,268 | 174.6K $ | 0.00 % | 0.04 % | as of Mar 31, 2026 ↗ |
| Invesco RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust | 19,956 | 81.2K $ | 0.00 % | 0.02 % | as of Apr 30, 2026 ↗ |
| Victory Extended Market Index Fund Victory Portfolios III | 7,720 | 31.4K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| Total Stock Market Index Trust John Hancock Variable Insurance Trust | 1,453 | 6K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| Knights of Columbus U.S. ALL CAP INDEX FUND ADVISORS' INNER CIRCLE III | 426 | 1.7K $ | 0.00 % | 0.00 % | as of Apr 30, 2026 ↗ |
| ProShares UltraPro Russell2000 ProShares Trust | 1 | 3.4 $ | 0.00 % | as of Feb 28, 2026 ↗ | |
| ProShares Russell 2000 High Income ETF ProShares Trust | 1 | 3.4 $ | 0.00 % | as of Feb 28, 2026 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table counts shares; this one measures what the company weighs inside each fund.
| Fund | Weight in fund | |
|---|---|---|
| Inception Portfolio MORGAN STANLEY INSTITUTIONAL FUND INC | 4.06 % | as of Mar 31, 2026 ↗ |
| EQ/Morgan Stanley Small Cap Growth Portfolio EQ Advisors Trust | 1.94 % | as of Mar 31, 2026 ↗ |
| Fidelity Advisor Biotechnology Fund Fidelity Advisor Series VII | 0.29 % | as of Apr 30, 2026 ↗ |
| Fidelity Small Cap Growth Fund Fidelity Securities Fund | 0.16 % | as of Apr 30, 2026 ↗ |
| Fidelity Small Cap Growth K6 Fund Fidelity Securities Fund | 0.16 % | as of Apr 30, 2026 ↗ |
| Select Biotechnology Portfolio Fidelity Select Portfolios | 0.11 % | as of Feb 28, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 0.00 % | as of Mar 31, 2026 ↗ |
| Victory Extended Market Index Fund Victory Portfolios III | 0.00 % | as of Apr 30, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 0.00 % | as of Feb 28, 2026 ↗ |
| Invesco RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust | 0.00 % | as of Apr 30, 2026 ↗ |
Quarter after quarter
Each SEC quarterly data set, newest first. The change is read against the quarter before it.
| Quarter | Shareholders | Change | Shares | Change |
|---|---|---|---|---|
| 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 25 largest follow.
| 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
1 beneficial ownership filing. These stakes do not add up: an asset manager filing aggregates its own funds, already counted above.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| Perceptive Advisors LLC and 2 others | 7.30 % | 6,889,163 | as of Mar 31, 2026 · SCHEDULE 13G |
Cite this page
Titelia. "Fund shareholders of X4 PHARMACEUTICALS INC". https://titelia.com/en/stocks/x4-pharmaceuticals-inc-US98420X2027