SUPERNUS PHARMACEUTICALS INC SUPN
COM · Common Stock · CUSIP 868459108 · ISIN US8684591089
Company in Rockville, United States
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersRockville, MD
- Founded2005
- Websitesupernus.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($7.1m this quarter). Holder counts are more reliable. Shares outstanding: 56.0m as of 2025-04-29, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $32.77. Options: 4 managers hold calls ($579.4k notional), 3 hold puts ($222.7k).
Trends to Q1 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 243 |
| Q4 2022 | 263 |
| Q1 2023 | 259 |
| Q2 2023 | 249 |
| Q3 2023 | 239 |
| Q4 2023 | 246 |
| Q1 2024 | 251 |
| Q2 2024 | 245 |
| Q3 2024 | 273 |
| Q4 2024 | 294 |
| Q1 2025 | 296 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2023 | 118 | 129 |
| Q3 2023 | 104 | 126 |
| Q4 2023 | 114 | 111 |
| Q1 2024 | 99 | 126 |
| Q2 2024 | 115 | 114 |
| Q3 2024 | 126 | 114 |
| Q4 2024 | 133 | 119 |
| Q1 2025 | 143 | 127 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $1.3m | $352.4k | 0.27 |
| Q3 2024 | $981.7k | $355.3k | 0.36 |
| Q4 2024 | $994.2k | $235.0k | 0.24 |
| Q1 2025 | $579.4k | $222.7k | 0.38 |
Biggest buyers
| Sofinnova Investments, Inc. | New | +520.7k |
| Krensavage Asset Management, LLC | New | +432.0k |
| ARMISTICE CAPITAL, LLC | Added | +360.0k |
| Point72 Asset Management, L.P. | Added | +292.1k |
| JPMORGAN CHASE & CO | Added | +211.6k |
| GW&K Investment Management, LLC | Added | +176.1k |
| MILLENNIUM MANAGEMENT LLC | Added | +112.9k |
| JANE STREET GROUP, LLC | New | +111.2k |
| BANK OF AMERICA CORP /DE/ | Added | +110.0k |
| Public Sector Pension Investment Board | Added | +82.2k |
Biggest sellers
| Pacer Advisors, Inc. | Reduced | -1.2m |
| Woodline Partners LP | Sold out | -423.8k |
| Polar Capital Holdings Plc | Reduced | -325.6k |
| BlackRock, Inc. | Reduced | -313.4k |
| Aristotle Capital Boston, LLC | Reduced | -203.2k |
| RAYMOND JAMES FINANCIAL INC | Sold out | -189.4k |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | -183.9k |
| HSBC HOLDINGS PLC | Reduced | -180.6k |
| PEREGRINE CAPITAL MANAGEMENT LLC | Sold out | -135.7k |
| GOLDMAN SACHS GROUP INC | Reduced | -109.8k |
Biggest calls
| GROUP ONE TRADING LLC | Added | $288.2k8.8k shares |
| CITADEL ADVISORS LLC | Reduced | $288.2k8.8k shares |
| SIMPLEX TRADING, LLC | Reduced | $3.0k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $206.3k6.3k shares |
| GROUP ONE TRADING LLC | New | $16.4k500 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-04-22 | 14.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.7% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.0% |
Fell to 5% or below in the last year: MILLENNIUM MANAGEMENT LLC (6.6%, 2026-08-06), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), ARMISTICE CAPITAL, LLC (4.8%, 2026-02-17), DIMENSIONAL FUND ADVISORS LP (4.7%, 2026-01-21)
Insider purchases and sales in Q1 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 1 | $421.4k | — |
| Q4 2023 | 0 | — | 3 | $360.4k | — |
| Q1 2024 | 0 | — | 2 | $3.6m | $3.6m |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 1 | $435.0k | — |
| Q4 2024 | 0 | — | 6 | $12.1m | $788.4k |
| Q1 2025 | 0 | — | 2 | $542.2k | $505.9k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-02-21 | Rubin Jonathan SVP, Chief Medical Officer | Sold | $36.3k927 shares |
| 2025-02-04 | Bhatt Padmanabh P. Sr. VP of IP, CSO | Sold plan | $376.2k9.5k shares |
| 2025-01-28 | Bhatt Padmanabh P. Sr. VP of IP, CSO | Sold plan | $27.7k700 shares |
| 2025-01-27 | Bhatt Padmanabh P. Sr. VP of IP, CSO | Sold plan | $101.9k2.6k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 9.7m $317.2m | Reduced -313.4k |
| VANGUARD GROUP INC 0.00% of their portfolio | 6.2m $201.9m | Added +13.1k |
| ARMISTICE CAPITAL, LLC 4.55% of their portfolio | 5.2m $170.2m | Added +360.0k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 2.9m $95.1m | Added +25.2k |
| MACQUARIE GROUP LTD 0.11% of their portfolio | 2.7m $88.4m | Added +70.8k |
| STATE STREET CORP 0.00% of their portfolio | 2.1m $70.3m | Reduced -42.9k |
| Stephens Investment Management Group LLC 0.82% of their portfolio | 1.7m $56.9m | Reduced -13.6k |
| RENAISSANCE TECHNOLOGIES LLC 0.08% of their portfolio | 1.6m $51.9m | Reduced -13.0k |
| LOOMIS SAYLES & CO L P 0.07% of their portfolio | 1.4m $47.2m | Reduced -26.4k |
| GW&K Investment Management, LLC 0.42% of their portfolio | 1.4m $45.3m | Added +176.1k |
| Polar Capital Holdings Plc 0.27% of their portfolio | 1.4m $44.6m | Reduced -325.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.3m $43.5m | Reduced -183.9k |
| AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio | 1.1m $37.2m | Reduced -5.4k |
| Aristotle Capital Boston, LLC 1.43% of their portfolio | 872.7k $28.6m | Reduced -203.2k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 824.2k $27.0m | Reduced -109.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 746.1k $24.4m | Reduced -7.2k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 706.8k $23.1m | Reduced -10.4k |
| VICTORY CAPITAL MANAGEMENT INC 0.02% of their portfolio | 672.5k $22.0m | Reduced -41.8k |
| MORGAN STANLEY 0.00% of their portfolio | 649.8k $21.3m | Reduced -27.8k |
| ASHFORD CAPITAL MANAGEMENT INC 2.39% of their portfolio | 566.6k $18.6m | Added +20.8k |
| Pictet Asset Management Holding SA 0.02% of their portfolio | 543.9k $17.6m | Added +17.7k |
| Invesco Ltd. 0.00% of their portfolio | 530.6k $17.4m | Added +22.6k |
| Sofinnova Investments, Inc. 1.29% of their portfolio | 520.7k $17.1m | New |
| RICE HALL JAMES & ASSOCIATES, LLC 0.99% of their portfolio | 515.9k $16.9m | Reduced -12.5k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 509.4k $16.7m | Added +211.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 483.1k $15.8m | Added +110.0k |
| D. E. Shaw & Co., Inc. 0.02% of their portfolio | 467.9k $15.3m | Reduced -77.8k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 452.7k $14.8m | Added +2.4k |
| Krensavage Asset Management, LLC 7.82% of their portfolio | 432.0k $14.1m | New |
| Pacer Advisors, Inc. 0.03% of their portfolio | 403.6k $13.2m | Reduced -1.2m |
| Bank of New York Mellon Corp 0.00% of their portfolio | 385.5k $12.6m | Reduced -14.1k |
| Tributary Capital Management, LLC 0.95% of their portfolio | 332.0k $10.9m | Reduced -12.0k |
| Point72 Asset Management, L.P. 0.03% of their portfolio | 318.9k $10.4m | Added +292.1k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 306.3k $10.0m | Added +9.6k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.01% of their portfolio | 269.5k $8.7m | Reduced -29.2k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 260.1k $8.5m | First filing |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 256.4k $8.4m | Added +81.5k |
| UBS Group AG 0.00% of their portfolio | 250.3k $8.2m | Added +50.3k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 244.1k $8.0m | Reduced -52.8k |
| Public Sector Pension Investment Board 0.03% of their portfolio | 219.7k $7.2m | Added +82.2k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.08% of their portfolio | 202.0k $6.6m | Reduced -114 |
| THIRD AVENUE MANAGEMENT LLC 1.24% of their portfolio | 189.5k $6.2m | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. 0.02% of their portfolio | 172.3k $5.6m | Reduced -29.3k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.16% of their portfolio | 166.5k $5.5m | Added +53.0k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 165.3k $5.4m | Reduced -7.1k |
| GREAT LAKES ADVISORS, LLC 0.05% of their portfolio | 163.6k $5.4m | Reduced -6.0k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 161.5k $5.3m | Added +67.1k |
| Legal & General Group Plc 0.00% of their portfolio | 152.4k $5.0m | Reduced -19.7k |
| Cubist Systematic Strategies, LLC 0.06% of their portfolio | 149.5k $4.9m | Added +10.0k |
| Trexquant Investment LP 0.06% of their portfolio | 144.5k $4.7m | Added +70.2k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 143.4k $4.7m | Added +112.9k |
| Nuveen, LLC 0.00% of their portfolio | 134.1k $4.4m | First filing |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 119.2k $3.9m | Added +76.4k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 111.2k $3.6m | New |
| S&T Bank/PA 1.19% of their portfolio | 111.1k $3.6m | Reduced -1.1k |
| AXIOM INVESTORS LLC /DE 0.02% of their portfolio | 108.8k $3.6m | Added +38.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 107.8k $3.5m | Added +7.8k |
| Swiss National Bank 0.00% of their portfolio | 107.0k $3.5m | Reduced -1.4k |
| Phocas Financial Corp. 0.51% of their portfolio | 102.5k $3.4m | Reduced -5.9k |
| BARCLAYS PLC 0.00% of their portfolio | 100.0k $3.3m | Reduced -22.8k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 98.1k $3.2m | Added +33.0k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 97.2k $3.2m | Added +72.2k |
| Bridge City Capital, LLC 0.93% of their portfolio | 94.2k $3.1m | Reduced -817 |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 91.1k $3.2m | Added +24.4k |
| GSA CAPITAL PARTNERS LLP 0.27% of their portfolio | 90.5k $3.0m | Added +71.5k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 90.2k $3.0m | Added +51.7k |
| CITIGROUP INC 0.00% of their portfolio | 90.0k $2.9m | Added +9.0k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 85.7k $2.8m | Reduced -6.9k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 85.2k $2.8m | Added +22.2k |
| Bruce & Co., Inc. 0.86% of their portfolio | 82.1k $2.7m | Unchanged |
| Jefferies Financial Group Inc. 0.05% of their portfolio | 81.3k $2.7m | Added +56.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 80.3k $2.6m | Added +49.0k |
| FMR LLC 0.00% of their portfolio | 77.6k $2.5m | Added +7.2k |
| Hennion & Walsh Asset Management, Inc. 0.11% of their portfolio | 77.6k $2.5m | Added +11.3k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 76.3k $2.5m | Reduced -3.4k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 75.0k $2.5m | Reduced -21.4k |
| HRT FINANCIAL LP 0.02% of their portfolio | 74.5k $2.4m | New |
| Squarepoint Ops LLC 0.01% of their portfolio | 73.3k $2.4m | Added +52.8k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 72.3k $2.4m | Added +45.3k |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 71.7k $2.3m | Added +3.7k |
| NORGES BANK 0.00% of their portfolio | 71.0k $2.3m | Reduced -54.6k |
| WEDGE CAPITAL MANAGEMENT L L P/NC 0.04% of their portfolio | 67.3k $2.2m | Added +14.0k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.05% of their portfolio | 66.4k $2.2m | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% of their portfolio | 65.6k $2.1m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 64.7k $2.1m | Added +1.5k |
| Candriam S.C.A. 0.01% of their portfolio | 61.0k $2.0m | Reduced -48.4k |
| BURNEY CO/ 0.07% of their portfolio | 60.9k $2.0m | Reduced -22.3k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 60.3k $2.0m | Added +299 |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 59.2k $1.9m | Added +115 |
| MERITAGE PORTFOLIO MANAGEMENT 0.13% of their portfolio | 58.8k $1.9m | Added +10.6k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 58.6k $1.9m | Reduced -6.3k |
| MARTINGALE ASSET MANAGEMENT L P 0.05% of their portfolio | 57.2k $1.9m | Added +12.6k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 54.1k $1.8m | Reduced -91 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 52.4k $1.7m | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 50.9k $1.7m | Reduced -283 |
| Empowered Funds, LLC 0.02% of their portfolio | 48.0k $1.6m | Added +6.6k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 47.4k $1.5m | Reduced -180.6k |
| Schonfeld Strategic Advisors LLC 0.01% of their portfolio | 46.8k $1.5m | Added +36.1k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 46.8k $1.5m | Reduced -58.8k |
| Epoch Investment Partners, Inc. 0.01% of their portfolio | 44.2k $1.4m | Reduced -41.5k |