Supernus Pharmaceuticals Inc
Ownership
Ownership Structure
Who owns Supernus Pharmaceuticals Inc (SUPN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 88.9% of the shares are freely tradable; institutional investors hold 103.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 16.06 | 9,350,046 | +6.3 | 06/30/2026 |
| Millennium Management LLC | 6.62 | 3,853,212 | +16.2 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 5.68 | 3,305,429 | +2.1 | 06/30/2026 |
| Armistice Capital, LLC | 4.54 | 2,646,201 | +39.6 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.32 | 2,516,721 | +2.0 | 06/30/2026 |
| State Street Corp | 4.22 | 2,459,828 | +7.5 | 06/30/2026 |
| Delaware Management Holdings Inc | 4.08 | 2,378,329 | +16.7 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 3.57 | 2,078,090 | -9.9 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 5.94 | 3,460,493 | +0.0 | 09/30/2026 |
| Nomura Small Cap Core I | 3.29 | 1,917,295 | +0.0 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Khattar Jack A. | President, CEO | 1,258,351 | 35,485,498 $ | Aug 12, 2026 | direct |
| Mottola Frank | SVP, Chief Tech. Ops. Officer | 19,544 | 551,141 $ | Aug 12, 2026 | direct |
| Bhatt Padmanabh P. | Sr. VP of IP, CSO | 18,637 | 525,563 $ | Aug 12, 2026 | direct |
| Rubin Jonathan | SVP, Chief Medical Officer | 13,979 | 394,208 $ | Aug 12, 2026 | direct |
| Dec Timothy C | Senior Vice-President & CFO | 9,129 | 257,438 $ | Aug 12, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 12, 2026 | Rubin Jonathan | SVP, Chief Medical Officer | Other | 363 | 46.57 | 16,905 |
| Aug 12, 2026 | Rubin Jonathan | SVP, Chief Medical Officer | Other | 750 | 0.00 | – |
| Aug 12, 2026 | Mottola Frank | SVP, Chief Tech. Ops. Officer | Other | 797 | 46.57 | 37,116 |
| Aug 12, 2026 | Mottola Frank | SVP, Chief Tech. Ops. Officer | Other | 1,650 | 0.00 | – |
| Aug 12, 2026 | Khattar Jack A. | President, CEO | Other | 12,642 | 46.57 | 588,738 |
| Aug 12, 2026 | Khattar Jack A. | President, CEO | Other | 29,849 | 0.00 | – |
| Aug 12, 2026 | Bhatt Padmanabh P. | Sr. VP of IP, CSO | Other | 1,158 | 46.57 | 53,928 |
| Aug 12, 2026 | Bhatt Padmanabh P. | Sr. VP of IP, CSO | Other | 2,500 | 0.00 | – |
| Aug 12, 2026 | Dec Timothy C | Senior Vice-President & CFO | Other | 604 | 46.57 | 28,128 |
| Aug 12, 2026 | Dec Timothy C | Senior Vice-President & CFO | Other | 1,250 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 3, 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.