§ EQUITY
USDXFOR
X4 PHARMACEUTICALS INC
USD
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
59 increased/new, 15 decreased/exited (13F)
AC 13F Analysis
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| Morgan Stanley | 9.5M | 0.0% | n/a |
| Empery Asset Management, LP | 8.9M | 44.5% | −0% |
| Fidelity Management | 8.1M | 0.0% | −5% |
| Bain Capital Life Sciences Investors, LLC | 8.0M | 3.0% | ±0% |
| PERCEPTIVE ADVISORS LLC | 6.7M | n/a | +7% |
| Saturn V Capital Management LP | 6.5M | 4.8% | +11% |
◇ AC INTELLIGENCE
Top institutional owners for XFOR as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER78.0% · 58 holders
DEALER / BANK10.7% · 12 holders
QUALITY / COMPOUNDER7.6% · 2 holders
PASSIVE / INDEX2.1% · 5 holders
TACTICAL / MACRO1.2% · 2 holders
SYSTEMATIC / QUANT0.3% · 2 holders
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for XFOR in the last 180 days.