Supernus Pharmaceuticals Inc (SUPN)
Healthcare
Drug Manufacturers - Specialty & Generic
44.60 $
-2.1%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Supernus Pharmaceuticals Inc (SUPN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 89.8% of the shares are freely tradable; institutional investors hold 103.9%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
103.9%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
4.5%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
89.8%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
12.9%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
58Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 15.16 | 8,797,254 | +0.7 | 03/31/2026 |
| Vanguard Group Inc | 10.42 | 6,048,496 | +0.1 | 12/31/2025 |
| Millennium Management LLC | 5.71 | 3,315,973 | +25.6 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.58 | 3,238,693 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.25 | 2,467,215 | +0.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 3.97 | 2,307,030 | -14.9 | 03/31/2026 |
| State Street Corp | 3.94 | 2,288,127 | +3.1 | 03/31/2026 |
| Delaware Management Holdings Inc | 3.51 | 2,037,202 | -11.7 | 03/31/2026 |
| Armistice Capital, LLC | 3.27 | 1,895,347 | -31.4 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 5.99 | 3,475,498 | +0.0 | 05/29/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.