Supernus Pharmaceuticals
Develops CNS medicines spanning ADHD, Parkinson’s disease, postpartum depression, and epilepsy.
$44.58
After-hours close+0.82 (+1.87%)
At close$43.76(−0.97%)
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Breakdown13F · Form 4
Institutions 109.88%Insiders 4.34%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 58.04M · Float 54.44M · 93.8% free float
Institutions13F, as of Jun 30, 2026
338 holders · 63.78M shares · 48 new positions · 170 increased · 109 reduced · 42 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 9.35M | 16.11% | +552.8K | Aug 7, 2026 |
| Millennium Management LLC | 3.85M | 6.64% | +537.2K | Aug 14, 2026 |
| Vanguard Portfolio Management LLC | 3.31M | 5.70% | +66.7K | Aug 13, 2026 |
| Armistice Capital, LLC | 2.65M | 4.56% | +750.9K | Aug 14, 2026 |
| Vanguard Capital Management LLC | 2.52M | 4.34% | +49.5K | Aug 13, 2026 |
| State Street Corp | 2.46M | 4.24% | +171.7K | Aug 7, 2026 |
| Macquarie Management Holdings, Inc. | 2.38M | 4.10% | +341.1K | Aug 14, 2026 |
| Dimensional Fund Advisors LP | 2.08M | 3.58% | −228.9K | Aug 11, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 14.70% | 8.20M | 13G | Apr 22, 2025 ↗ |
| Armistice Capital, LLC | 8.58% | 4.81M | 13G | Aug 15, 2025 ↗ |
| Vanguard Portfolio Management | 5.66% | 3.26M | 13G | Apr 29, 2026 ↗ |
| Millennium Management LLC | 5.30% | 3.04M | 13G | Feb 2, 2026 ↗ |
| Vanguard Capital Management | 5.03% | 2.90M | 13G | Apr 30, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Jack A. Khattar | director, officer: President, CEO | 2.22M | 3.82% | Aug 14, 2026 |
| Charles W. Iii Newhall | director | 124.1K | 0.21% | Feb 25, 2026 |
| Frederick M. Hudson | director | 60.4K | 0.10% | Mar 16, 2026 |
| Georges Gemayel | director | 27.3K | 0.05% | Mar 9, 2026 |
| Carrolee Barlow | director | 27.0K | 0.05% | Feb 25, 2026 |
| Frank Mottola | officer: SVP, Chief Tech. Ops. Officer | 19.5K | 0.03% | Aug 14, 2026 |
| Padmanabh P. Bhatt | officer: Sr. VP of IP, CSO | 18.6K | 0.03% | Aug 14, 2026 |
| Jonathan Rubin | officer: SVP, Chief Medical Officer | 14.0K | 0.02% | Aug 14, 2026 |
| Timothy C. Dec | officer: Senior Vice-President & CFO | 9.1K | 0.02% | Aug 14, 2026 |
3 ten-percent owners hold 7.14M shares by Form 4, outside the officers-and-directors figure above · 10 people have not refiled in the last 18 months (652.4K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Mar 17, 2026 | Padmanabh P. Bhattofficer: Sr. VP of IP, CSO | Sale · 2 lots | 50,000 | $50.30 | 17,044 |
| Mar 18, 2026 | Padmanabh P. Bhattofficer: Sr. VP of IP, CSO | Sale · 2 lots | 7,250 | $49.60 | 17,044 |
| Mar 16, 2026 | Padmanabh P. Bhattofficer: Sr. VP of IP, CSO | Sale · 2 lots | 50,000 | $50.28 | 17,044 |
| Mar 12, 2026 | Frederick M. Hudsondirector | Sale | 5,369 | $50.61 | 60,413 |
| Mar 13, 2026 | Jack A. Khattardirector, officer: President, CEO | Sale · 3 lots | 35,000 | $50.37 | 958,100 |
| Mar 10, 2026 | William Todd Horichofficer: SVP, Commercial Operations | Sale | 4,439 | $55.00 | 0 |
| Mar 9, 2026 | William Todd Horichofficer: SVP, Commercial Operations | Sale | 4,438 | $54.00 | 4,439 |
| Mar 9, 2026 | Frank Mottolaofficer: SVP, Chief Tech. Ops. Officer | Sale | 1,623 | $53.65 | 18,440 |
| Mar 6, 2026 | Georges Gemayeldirector | Sale | 8,787 | $53.00 | 27,277 |
| Mar 5, 2026 | Georges Gemayeldirector | Sale | 10,000 | $53.71 | 28,159 |
CongressHouse and Senate disclosures
Not reported.