Based on 23 hedge funds · latest filing: 2025 Q4 · updated quarterly
📉
Selling streak — 1 quarter in a row
For 1 consecutive quarter, more hedge funds reduced or closed their OSTX positions than added to them. Sustained institutional selling is a meaningful warning sign — these are professionals with deep research teams collectively deciding to exit.
📊
High ownership — 92% of 3.0Y peak
92% of all-time peak
23 funds currently hold this stock — 92% of the 3.0-year high of 25 funds (reached 2025 Q3). Ownership is elevated but not yet at maximum concentration. Room to grow, but watch if the trend reverses.
🚀
Fast accumulation — +360% more funds vs a year ago
fund count last 6Q
+18 new funds entered over the past year (+360% 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.
🟡
Slight buying edge — 54% buying
13 buying11 selling
Last quarter: 13 funds bought or added vs 11 that reduced or exited. It's nearly a 50/50 split — some institutions are convinced, others are taking profits. This mixed picture is normal near price highs.
⚠️
Fewer new buyers each quarter (-8 vs last Q)
new funds entering per quarter
Funds opening this position for the first time: 2 → 7 → 13 → 5. Each quarter fewer new institutions are entering. This usually means most funds that wanted in are already in — the stock is well-known but the pool of potential new buyers is shrinking.
🔄
Mostly new holders — 61% entered in last year
■ 4% conviction (2yr+)
■ 35% medium
■ 61% new
Only 1 funds (4%) have held >2 years. The majority of current holders are relatively new to the position. New holders tend to sell faster when prices drop — a shallow conviction base that could amplify any sell-off.
💎
Buying through price weakness — shares +14%, value -19%
Last quarter: funds added +14% more shares while total portfolio value only changed -19%. Institutions were buying while the price was falling — a high-conviction accumulation signal. They're deliberately loading up on the dip.
➡️
Steady discovery — ~5 new funds/quarter
2 → 2 → 7 → 13 → 5 new funds/Q
New funds entering each quarter: 2 → 7 → 13 → 5. Consistent flow of new institutional buyers without clear acceleration or slowdown.
🌱
Early stage — 78% of holders entered in last year
■ 4% veterans
■ 17% 1-2yr
■ 78% new
Of 23 current holders: 18 (78%) entered in the past year, only 1 (4%) are 2+ year veterans. This is an early-phase institutional idea — still being discovered. High upside potential if the thesis plays out, but thin conviction base.
🏆
Elite ownership — 54% AUM from top-100 funds
54% from top-100 AUM funds
10 of 23 holders are among the 100 largest funds by AUM, controlling 54% of total institutional value in OSTX. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.
6.1
out of 10
Moderate Exit Risk
Exit risk score 6.1/10 — some crowding factors present, but no critical concentration. Watch ownership trend over the next 1–2 quarters for direction.