Institutional Ownership
X4 Pharmaceuticals Inc
CUSIP 98420X202COM NEWXFORQ1 2026
Institutional Holders
78
13F filers
Shares Held
86.41M
Aggregate institutional
Institutional Value
$357.06M
Q1 2026
Net New Holders
+5
16 new · 11 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions16
Increased22
Decreased21
Sold out11
Institutional Holders
78 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | Morgan Stanley | 9.47M | $39.10M | +1.26M | Added |
| 2 | Empery Asset Management, LP | 8.94M | $36.94M | −7.0K | Reduced |
| 3 | Fmr LLC | 8.10M | $33.47M | −395.7K | Reduced |
| 4 | Bain Capital Life Sciences Investors, LLC | 7.97M | $32.91M | 0 | Held |
| 5 | Perceptive Advisors LLC | 6.74M | $27.83M | +423.2K | Added |
| 6 | Saturn V Capital Management LP | 6.46M | $26.67M | +656.1K | Added |
| 7 | Deep Track Capital, LP | 6.34M | $26.18M | +1.33M | Added |
| 8 | Kalehua Capital Management LLC | 3.72M | $15.38M | 0 | Held |
| 9 | Braidwell LP | 3.27M | $13.52M | −96.0K | Reduced |
| 10 | Rosalind Advisors, Inc. | 3.21M | $13.28M | +608.8K | Added |
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