SUPN
Supernus Pharmaceuticals, Inc.Company with tickers: SUPN
CIK
1356576
CUSIP
868459108
Shares Outstanding
58,039,721
Price History
Institutional Holders
Short Volume
Short Interest
Fails to Deliver
Financials
SEC Filings
Earnings Calls
Insider Trades
Congressional Trades
Holders: 2
Total Value: $1,202,050
Total Shares: 23,255
Institutional Ownership Trend
Holder Concentration
Across 2 13F filers · Δ vs Dec 31, 2025Top Holder
99.6%
+82.1 pts
Top 5
100.0%
+61.5 pts
Top 10
100.0%
+43.1 pts
HHI
9,926
Highly concentrated
+9,401
Quarterly Activity
vs Dec 31, 2025
New
1
Increased
0
Decreased
0
Sold Out
327
Unchanged
1
Holder count:
-326
Institutional value:
-100.0%
Shares held:
-100.0%
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) |
|---|---|---|
| Mid SEGALL BRYANT & HAMILL, LLC | 23,169 | $1,197,605 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) |
|---|---|---|
| Mega BlackRock, Inc. | 8,735,868 | $434,172,632 |
| Mid ARMISTICE CAPITAL, LLC | 2,764,000 | $137,370,800 |
| Mega DIMENSIONAL FUND ADVISORS LP | 2,712,341 | $134,803,345 |
| Mega MILLENNIUM MANAGEMENT LLC | 2,685,066 | $133,447,780 |
| Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 2,307,639 | $114,689,658 |
| Holder | Value (USD) | % of 13F | Shares | Activity | Type | Discretion | Filed | Action |
|---|---|---|---|---|---|---|---|---|
| Mid SEGALL BRYANT & HAMILL, LLC | $1,197,605 | 99.63% | 23,169 | First | Shares | Sole | 2026-05-22 | View |
| Small Essential Partners LLC | $4,445 | 0.37% | 86 | Held | Shares | Sole | 2026-05-21 | View |
| No holders match your search. | ||||||||