Based on 19 hedge funds · latest filing: 2026 Q1 · updated quarterly
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Buying streak — 1 quarter in a row
For 1 consecutive quarter, more hedge funds added MBRX than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.
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High ownership — 79% of 2.2Y peak
79% of all-time peak
19 funds currently hold this stock — 79% of the 2.2-year high of 24 funds (reached 2025 Q3). Ownership is elevated but not yet at maximum concentration. Room to grow, but watch if the trend reverses.
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Outflows — 5% fewer funds vs a year ago
fund count last 6Q
1 fewer hedge funds hold MBRX compared to a year ago (-5% decline). When institutions consistently reduce their exposure, it's worth exploring the underlying fundamental reasons driving them away.
🟢
More buyers than sellers — 65% buying
11 buying6 selling
Last quarter: 11 funds were net buyers (7 opened a brand new position + 4 added to an existing one). Only 6 were sellers (2 trimmed + 4 sold completely). A clear majority buying is a strong confirmation signal.
➡️
Steady new buyers — ~7 new funds per quarter
new funds entering per quarter
Funds opening this position for the first time: 5 → 8 → 4 → 7. A stable flow of new institutional buyers suggests ongoing interest without signs of either acceleration or slowdown.
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Mixed — 26% long-term, 53% new
■ 26% conviction (2yr+)
■ 21% medium
■ 53% new
Of the 19 current holders: 5 (26%) held >2 years, 4 held 1–2 years, and 10 entered in the last year. A mixed base — the stock has long-term believers but also recent buyers who haven't been tested by a downturn yet.
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Buying through price weakness — shares +60%, value +10%
Last quarter: funds added +60% more shares while total portfolio value only changed +10%. Institutions were buying while the price was falling — a high-conviction accumulation signal. They're deliberately loading up on the dip.
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Peak discovery — momentum slowing
6 → 5 → 8 → 4 → 7 new funds/Q
New funds entering each quarter: 5 → 8 → 4 → 7. MBRX is well-known in the hedge fund world, but fresh entries are gradually declining. The explosive phase of institutional discovery is likely behind us.
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Mixed cohorts — 0% veterans, 53% new entrants
■ 0% veterans
■ 47% 1-2yr
■ 53% new
Of 19 current holders: 0 (0%) held 2+ years, 9 held 1–2 years, 10 (53%) entered in the past year. Balanced distribution — some institutional memory, some recent momentum buyers.
✅
Strong quality — 24% AUM from major funds
24% from top-100 AUM funds
4 of 19 holders rank in the top 100 by AUM, accounting for 24% of total institutional value held. A meaningful share of the ownership value comes from the most well-resourced institutions.
Exit risk score 3.3/10 — low institutional crowding. Ownership is below peak levels, holder base is relatively sticky, and buying momentum is positive.