Based on 22 hedge funds · latest filing: 2025 Q4 · updated quarterly
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Buying streak — 3 quarters in a row
For 3 consecutive quarters, more hedge funds added MBIO 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.
🔻
Below peak — only 50% of 3.0Y high
50% of all-time peak
Only 22 funds hold MBIO today versus a peak of 44 funds at 2023 Q1 — just 50% of the maximum. Low institutional ownership can mean the stock is out of favor, but it also means there's a large pool of potential buyers if sentiment turns.
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Outflows — 19% fewer funds vs a year ago
fund count last 6Q
5 fewer hedge funds hold MBIO compared to a year ago (-19% decline). When institutions consistently reduce their exposure, it's worth exploring the underlying fundamental reasons driving them away.
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More buyers than sellers — 67% buying
12 buying6 selling
Last quarter: 12 funds were net buyers (7 opened a brand new position + 5 added to an existing one). Only 6 were sellers (3 trimmed + 3 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: 1 → 3 → 7 → 7. A stable flow of new institutional buyers suggests ongoing interest without signs of either acceleration or slowdown.
🔒
59% of holders stayed for 2+ years
■ 59% conviction (2yr+)
■ 14% medium
■ 27% new
13 out of 22 hedge funds have held MBIO for over 2 years without selling. Long-term investors are generally harder to shake out during market stress, creating a stable ownership base that limits the risk of sudden capitulation.
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Buying through price weakness — shares +97%, value +27%
Last quarter: funds added +97% more shares while total portfolio value only changed +27%. Institutions were buying while the price was falling — a high-conviction accumulation signal. They're deliberately loading up on the dip.
➡️
Steady discovery — ~7 new funds/quarter
9 → 1 → 3 → 7 → 7 new funds/Q
New funds entering each quarter: 1 → 3 → 7 → 7. Consistent flow of new institutional buyers without clear acceleration or slowdown.
🏛️
Deep conviction — 68% of holders stayed 2+ years
■ 68% veterans
■ 14% 1-2yr
■ 18% new
Of 22 current holders: 15 (68%) have held for over 2 years without selling. These are not momentum buyers — they have lived through drawdowns and stayed. A large veteran base acts as a stabilizing force during selloffs.
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Smaller funds dominant — 16% AUM from top-100
16% from top-100 AUM funds
6 of 22 holders rank in the top 100 by AUM, but together hold only 16% of total institutional value. The stock is held primarily by smaller and mid-sized funds.
Exit risk score 1.4/10 — low institutional crowding. Ownership is below peak levels, holder base is relatively sticky, and buying momentum is positive.