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 ($2.2m this quarter). Holder counts are more reliable. Shares outstanding: 55.1m as of 2024-07-30, 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 ≈ $26.75. Options: 5 managers hold calls ($1.3m notional), 4 hold puts ($352.4k).
Trends to Q2 2024
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 124 | 106 |
| Q1 2023 | 116 | 126 |
| Q2 2023 | 118 | 129 |
| Q3 2023 | 104 | 126 |
| Q4 2023 | 114 | 111 |
| Q1 2024 | 99 | 126 |
| Q2 2024 | 115 | 114 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $611.3k | $52.4k | 0.09 |
| Q4 2023 | $766.2k | $778.0k | 1.02 |
| Q1 2024 | $3.5m | $2.3m | 0.65 |
| Q2 2024 | $1.3m | $352.4k | 0.27 |
Biggest buyers
| ARMISTICE CAPITAL, LLC | Added | +1.7m |
| Pacer Advisors, Inc. | Added | +1.3m |
| AMERICAN CENTURY COMPANIES INC | Added | +394.7k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +351.9k |
| DIMENSIONAL FUND ADVISORS LP | Added | +310.0k |
| GOLDMAN SACHS GROUP INC | Added | +275.4k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | New | +172.3k |
| D. E. Shaw & Co., Inc. | Added | +160.4k |
| Qube Research & Technologies Ltd | Added | +150.6k |
| SCHRODER INVESTMENT MANAGEMENT GROUP | Added | +150.4k |
Biggest sellers
| Woodline Partners LP | Sold out | -1.3m |
| MORGAN STANLEY | Reduced | -1.3m |
| CONGRESS ASSET MANAGEMENT CO | Reduced | -1.0m |
| Pictet Asset Management Holding SA | Reduced | -444.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -395.2k |
| CW Advisors, LLC | Sold out | -177.8k |
| HSBC HOLDINGS PLC | Reduced | -173.4k |
| Epoch Investment Partners, Inc. | Reduced | -166.4k |
| TWO SIGMA ADVISERS, LP | Reduced | -112.7k |
| Nuveen Asset Management, LLC | Reduced | -93.8k |
Biggest calls
| Caption Management, LLC | Unchanged | $535.0k20.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $462.8k17.3k shares |
| CITADEL ADVISORS LLC | Added | $283.6k10.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $10.0k400 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $211.3k7.9k shares |
| CITADEL ADVISORS LLC | Reduced | $139.1k5.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.0k100 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 Q2 2024
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 |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 2 | $7.3m | — |
| Q4 2022 | 0 | — | 2 | $1.6m | — |
| Q1 2023 | 0 | — | 3 | $2.2m | — |
| 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 | — | — |
None reported in Q2 2024.
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.01% of their portfolio | 10.4m $278.0m | Added +30.3k |
| VANGUARD GROUP INC 0.00% of their portfolio | 6.1m $164.2m | Reduced -69.3k |
| ARMISTICE CAPITAL, LLC 3.69% of their portfolio | 5.3m $141.0m | Added +1.7m |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 2.9m $76.7m | Added +310.0k |
| MACQUARIE GROUP LTD 0.08% of their portfolio | 2.7m $71.7m | Added +10.8k |
| STATE STREET CORP 0.00% of their portfolio | 2.2m $57.9m | Added +125.2k |
| Polar Capital Holdings Plc 0.31% of their portfolio | 1.9m $51.9m | Unchanged |
| Stephens Investment Management Group LLC 0.71% of their portfolio | 1.9m $50.8m | Reduced -3.3k |
| RENAISSANCE TECHNOLOGIES LLC 0.08% of their portfolio | 1.7m $45.1m | Added +351.9k |
| LOOMIS SAYLES & CO L P 0.06% of their portfolio | 1.6m $41.6m | Reduced -41.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.4m $37.7m | Added +100.7k |
| Pacer Advisors, Inc. 0.08% of their portfolio | 1.3m $36.1m | Added +1.3m |
| GW&K Investment Management, LLC 0.32% of their portfolio | 1.3m $34.6m | Reduced -46.1k |
| Aristotle Capital Boston, LLC 1.08% of their portfolio | 1.2m $32.2m | Added +63.3k |
| VICTORY CAPITAL MANAGEMENT INC 0.02% of their portfolio | 735.0k $19.7m | Added +87.2k |
| ASHFORD CAPITAL MANAGEMENT INC 2.57% of their portfolio | 711.9k $19.0m | Reduced -51.6k |
| MORGAN STANLEY 0.00% of their portfolio | 670.6k $17.9m | Reduced -1.3m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 621.0k $16.6m | Added +28.4k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 599.5k $16.0m | Reduced -19.7k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 590.3k $15.8m | Added +275.4k |
| Invesco Ltd. 0.00% of their portfolio | 588.7k $15.7m | Reduced -15.1k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 564.4k $15.1m | Reduced -1.9k |
| Pictet Asset Management Holding SA 0.02% of their portfolio | 545.9k $14.6m | Reduced -444.1k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.01% of their portfolio | 508.1k $13.6m | Added +150.4k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.81% of their portfolio | 502.6k $13.4m | Reduced -14.2k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 501.7k $13.4m | Added +394.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 425.4k $11.4m | Added +2.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 405.6k $10.8m | Added +45.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 360.6k $9.6m | Reduced -33.7k |
| Tributary Capital Management, LLC 0.77% of their portfolio | 345.1k $9.2m | Added +283 |
| SEI INVESTMENTS CO 0.01% of their portfolio | 337.7k $9.0m | Added +7.1k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 290.8k $7.8m | Added +160.4k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.08% of their portfolio | 278.4k $7.4m | Reduced -42.5k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 270.8k $7.2m | Reduced -13.2k |
| SCOUT INVESTMENTS, INC. 0.17% of their portfolio | 242.3k $6.5m | Reduced -23.2k |
| NORGES BANK 0.00% of their portfolio | 208.8k $5.6m | Reduced -23.4k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.16% of their portfolio | 202.3k $5.4m | Reduced -699 |
| THIRD AVENUE MANAGEMENT LLC 0.87% of their portfolio | 189.1k $5.1m | Added +29.4k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 180.3k $4.8m | Added +5.8k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.02% of their portfolio | 172.3k $4.6m | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 161.3k $4.3m | Added +128.7k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 160.2k $4.3m | Added +150.6k |
| Legal & General Group Plc 0.00% of their portfolio | 153.0k $4.1m | Reduced -1.2k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 142.9k $3.8m | Added +55.6k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.00% of their portfolio | 142.4k $3.8m | Reduced -31.2k |
| Candriam S.C.A. 0.02% of their portfolio | 141.9k $3.8m | New |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 136.3k $3.6m | Added +8.5k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 133.2k $3.6m | Reduced -93.8k |
| S&T Bank/PA 0.87% of their portfolio | 127.6k $3.4m | Reduced -47.9k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 120.9k $3.2m | Added +9.0k |
| Phocas Financial Corp. 0.35% of their portfolio | 116.3k $3.1m | Reduced -2.2k |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 116.3k $3.3m | Added +109.1k |
| Swiss National Bank 0.00% of their portfolio | 107.6k $2.9m | Unchanged |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 101.0k $2.7m | Added +5.7k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 100.3k $2.7m | Added +2.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 92.5k $2.5m | Added +41.2k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 87.9k $2.4m | Reduced -600 |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 87.4k $2.3m | Added +6.1k |
| Bridge City Capital, LLC 0.74% of their portfolio | 82.3k $2.2m | Added +1.6k |
| Bruce & Co., Inc. 0.72% of their portfolio | 82.1k $2.2m | Unchanged |
| UBS Group AG 0.00% of their portfolio | 80.1k $2.1m | Added +15.5k |
| Cubist Systematic Strategies, LLC 0.04% of their portfolio | 79.6k $2.1m | Added +39.5k |
| Edgestream Partners, L.P. 0.10% of their portfolio | 75.8k $2.0m | New |
| MARSHALL WACE, LLP 0.00% of their portfolio | 73.5k $2.0m | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 73.0k $2.0m | Reduced -4.9k |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 68.0k $1.8m | Reduced -1.3k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 66.5k $1.8m | Added +12.1k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 59.7k $1.6m | Reduced -2.1k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 59.1k $1.6m | Reduced -29.2k |
| BARCLAYS PLC 0.00% of their portfolio | 57.8k $1.5m | Reduced -22.8k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 57.1k $1.5m | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 55.7k $1.5m | Added +29 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 55.2k $1.5m | Added +6.4k |
| AXIOM INVESTORS LLC /DE 0.01% of their portfolio | 54.9k $1.5m | Added +625 |
| CITIGROUP INC 0.00% of their portfolio | 54.8k $1.5m | Added +9.7k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 53.8k $1.4m | Added +5.9k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 53.5k $1.4m | Reduced -598 |
| Villanova Investment Management Co LLC 1.46% of their portfolio | 51.5k $1.4m | First filing |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 48.6k $1.3m | Added +25.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 47.5k $1.3m | Reduced -395.2k |
| FEDERATED HERMES, INC. 0.00% of their portfolio | 46.1k $1.2m | Reduced -152 |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 45.6k $1.2m | Reduced -1.8k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 44.8k $1.2m | Reduced -629 |
| CAMPBELL NEWMAN ASSET MANAGEMENT INC 0.09% of their portfolio | 43.6k $1.2m | Added +91 |
| Polaris Capital Management, LLC 0.06% of their portfolio | 42.5k $1.1m | Unchanged |
| Hennion & Walsh Asset Management, Inc. 0.06% of their portfolio | 42.4k $1.1m | Added +2.6k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 40.7k $1.1m | Added +3.0k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.00% of their portfolio | 40.0k $1.1m | New |
| MERITAGE PORTFOLIO MANAGEMENT 0.07% of their portfolio | 40.0k $1.1m | Added +315 |
| SIT INVESTMENT ASSOCIATES INC 0.02% of their portfolio | 38.8k $1.0m | Unchanged |
| MARTINGALE ASSET MANAGEMENT L P 0.02% of their portfolio | 36.1k $966.6k | Unchanged |
| Epoch Investment Partners, Inc. 0.00% of their portfolio | 35.9k $959.1k | Reduced -166.4k |
| Allspring Global Investments Holdings, LLC 0.00% of their portfolio | 34.4k $920.4k | Reduced -1.9k |
| NATIXIS ADVISORS, LLC 0.00% of their portfolio | 34.2k $915.0k | Reduced -3.7k |
| Jump Financial, LLC 0.02% of their portfolio | 33.8k $903.3k | New |
| ASSETMARK, INC 0.00% of their portfolio | 32.5k $870.3k | Added +1.4k |
| State of Alaska, Department of Revenue 0.01% of their portfolio | 32.3k $864.0k | Reduced -969 |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 30.6k $818.5k | Reduced -112.7k |
| Illinois Municipal Retirement Fund 0.01% of their portfolio | 29.8k $796.7k | Added +156 |
| MetLife Investment Management, LLC 0.00% of their portfolio | 29.4k $787.2k | Added +3.4k |