Based on 279 hedge funds · latest filing: 2025 Q4 · updated quarterly
📈
Buying streak — 2 quarters in a row
For 2 consecutive quarters, more hedge funds added GMAB 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.
🏔️
At the ownership peak (100% of max)
100% of all-time peak
279 hedge funds hold GMAB right now — the highest count in 3.0 years. When ownership is this concentrated, any bad news can trigger a chain reaction: one big fund sells, others follow. This is a classic 'crowded trade' — high popularity doesn't equal safety.
🚀
Fast accumulation — +30% more funds vs a year ago
fund count last 6Q
+64 new funds entered over the past year (+30% YoY). That's a rapid rush of institutional money. Fast accumulation often signals a major thesis — but it also means the stock could fall quickly if that thesis breaks.
🟢
More buyers than sellers — 70% buying
194 buying84 selling
Last quarter: 194 funds were net buyers (75 opened a brand new position + 119 added to an existing one). Only 84 were sellers (52 trimmed + 32 sold completely). A clear majority buying is a strong confirmation signal.
📈
More new buyers each quarter (+16 vs last Q)
new funds entering per quarter
Funds opening a new GMAB position: 35 → 33 → 59 → 75. A growing influx of new institutional buyers means the asset is still gathering momentum — the consensus hasn't fully saturated yet.
🔒
47% of holders stayed for 2+ years
■ 47% conviction (2yr+)
■ 20% medium
■ 33% new
130 out of 279 hedge funds have held GMAB 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.
🚀
Acceleration phase — new buyers rushing in
47 → 35 → 33 → 59 → 75 new funds/Q
New funds entering each quarter: 35 → 33 → 59 → 75. The pace of institutional discovery is accelerating sharply. This is the 'hot idea' phase — the thesis is being passed from fund to fund. You are not late — the accumulation wave is still building.
🏛️
Deep conviction — 57% of holders stayed 2+ years
■ 57% veterans
■ 11% 1-2yr
■ 33% new
Of 284 current holders: 161 (57%) 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.
✅
Strong quality — 33% AUM from major funds
33% from top-100 AUM funds
27 of 279 holders rank in the top 100 by AUM, accounting for 33% of total institutional value held. A meaningful share of the ownership value comes from the most well-resourced institutions.
4.3
out of 10
Moderate Exit Risk
Exit risk score 4.3/10 — some crowding factors present, but no critical concentration. Watch ownership trend over the next 1–2 quarters for direction.