Based on 27 hedge funds · latest filing: 2026 Q1 · updated quarterly
📉
Selling streak — 1 quarter in a row
For 1 consecutive quarter, more hedge funds reduced or closed their NEPH 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 — 77% of 3.0Y peak
77% of all-time peak
27 funds currently hold this stock — 77% of the 3.0-year high of 35 funds (reached 2025 Q4). Ownership is elevated but not yet at maximum concentration. Room to grow, but watch if the trend reverses.
🚀
Fast accumulation — +59% more funds vs a year ago
fund count last 6Q
+10 new funds entered over the past year (+59% 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.
🔴
Heavy selling pressure — only 31% buying
9 buying20 selling
Last quarter: 20 funds sold vs only 9 buyers. This is widespread institutional distribution — not a few funds rebalancing, but a broad exit. High conviction bearish signal.
⚠️
Fewer new buyers each quarter (-12 vs last Q)
new funds entering per quarter
Funds opening this position for the first time: 3 → 5 → 15 → 3. 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.
🔒
41% of holders stayed for 2+ years
■ 41% conviction (2yr+)
■ 26% medium
■ 33% new
11 out of 27 hedge funds have held NEPH 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.
💎
Buying through price weakness — shares +1%, value -38%
Last quarter: funds added +1% more shares while total portfolio value only changed -38%. Institutions were buying while the price was falling — a high-conviction accumulation signal. They're deliberately loading up on the dip.
➡️
Steady discovery — ~3 new funds/quarter
1 → 3 → 5 → 15 → 3 new funds/Q
New funds entering each quarter: 3 → 5 → 15 → 3. Consistent flow of new institutional buyers without clear acceleration or slowdown.
🏛️
Veteran-anchored — 52% veterans vs 37% newcomers
■ 52% veterans
■ 11% 1-2yr
■ 37% new
Entry-cohort mix of 27 holders: 14 (52%) are 2+ year veterans, 3 entered 1–2 years ago, and 10 (37%) joined within the past year. A veteran-weighted cap table skews toward institutional memory over fresh momentum.
📋
Smaller funds dominant — 5% AUM from top-100
5% from top-100 AUM funds
9 of 27 holders rank in the top 100 by AUM, but together hold only 5% of total institutional value. The stock is held primarily by smaller and mid-sized funds.
4.8
out of 10
Moderate Exit Risk
Exit risk score 4.8/10 — some crowding factors present, but no critical concentration. Watch ownership trend over the next 1–2 quarters for direction.