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 ($475.6k this quarter). Holder counts are more reliable. Shares outstanding: 54.6m as of 2023-11-01, 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 ≈ $27.58. Options: 5 managers hold calls ($611.3k notional), 2 hold puts ($52.4k).
Trends to Q3 2023
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 |
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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2022 | $980.6k | $7.1k | 0.01 |
| Q1 2023 | $2.9m | $90.6k | 0.03 |
| Q2 2023 | $2.5m | $342.7k | 0.14 |
| Q3 2023 | $611.3k | $52.4k | 0.09 |
Biggest buyers
| CITADEL ADVISORS LLC | Added | +286.8k |
| MACQUARIE GROUP LTD | Added | +247.4k |
| BlackRock Inc. | Added | +219.5k |
| Polar Capital Holdings Plc | Added | +150.0k |
| CONGRESS ASSET MANAGEMENT CO | Added | +147.1k |
| Integral Health Asset Management, LLC | Added | +145.0k |
| LOOMIS SAYLES & CO L P | Added | +137.0k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Added | +71.7k |
| ARMISTICE CAPITAL, LLC | Added | +56.0k |
| VICTORY CAPITAL MANAGEMENT INC | Added | +52.5k |
Biggest sellers
| Pacer Advisors, Inc. | Reduced | -448.7k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -190.2k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -116.1k |
| BURNEY CO/ | Reduced | -114.6k |
| INTERNATIONAL BIOTECHNOLOGY TRUST PLC | Reduced | -97.0k |
| Epoch Investment Partners, Inc. | Reduced | -88.4k |
| TWO SIGMA ADVISERS, LP | Reduced | -83.3k |
| Bellevue Group AG | Reduced | -69.7k |
| Invesco Ltd. | Reduced | -64.8k |
| Schonfeld Strategic Advisors LLC | Reduced | -61.7k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $443.9k16.1k shares |
| CITADEL ADVISORS LLC | Reduced | $162.7k5.9k shares |
| GROUP ONE TRADING LLC | New | $2.8k100 shares |
| SIMPLEX TRADING, LLC | Unchanged | $2.0k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $52.4k1.9k 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 Q3 2023
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 |
|---|---|---|---|---|---|
| Q4 2021 | 0 | — | 0 | — | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 0 | — | 0 | — | — |
| 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 | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-08-30 | Martin Tami Tillotson Sr. V.P., Regulatory Affairs | Sold | $259.2k8.1k shares |
| 2023-08-25 | Martin Tami Tillotson Sr. V.P., Regulatory Affairs | Sold | $162.2k5.1k 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, Q3 2023
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.01% of their portfolio | 10.2m $280.7m | Added +219.5k |
| VANGUARD GROUP INC 0.00% of their portfolio | 6.1m $167.4m | Added +28.7k |
| ARMISTICE CAPITAL, LLC 4.17% of their portfolio | 5.1m $140.4m | Added +56.0k |
| MACQUARIE GROUP LTD 0.09% of their portfolio | 2.8m $75.8m | Added +247.4k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 2.3m $63.8m | Reduced -116.1k |
| STATE STREET CORP 0.00% of their portfolio | 1.9m $52.9m | Added +47.7k |
| LOOMIS SAYLES & CO L P 0.08% of their portfolio | 1.7m $47.7m | Added +137.0k |
| Stephens Investment Management Group LLC 0.77% of their portfolio | 1.7m $47.0m | Added +4.0k |
| Polar Capital Holdings Plc 0.34% of their portfolio | 1.7m $45.6m | Added +150.0k |
| RENAISSANCE TECHNOLOGIES LLC 0.07% of their portfolio | 1.4m $39.7m | Reduced -57.9k |
| GW&K Investment Management, LLC 0.39% of their portfolio | 1.4m $38.8m | Added +6.9k |
| Aristotle Capital Boston, LLC 1.06% of their portfolio | 1.2m $32.8m | Added +26.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.1m $30.1m | Added +39.0k |
| Pictet Asset Management Holding SA 0.03% of their portfolio | 920.6k $25.4m | First filing |
| CONGRESS ASSET MANAGEMENT CO 0.22% of their portfolio | 917.2k $25.3m | Added +147.1k |
| ASHFORD CAPITAL MANAGEMENT INC 3.72% of their portfolio | 916.7k $25.3m | Reduced -9.4k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 734.1k $20.2m | Reduced -1.4k |
| VICTORY CAPITAL MANAGEMENT INC 0.02% of their portfolio | 711.2k $19.6m | Added +52.5k |
| Invesco Ltd. 0.01% of their portfolio | 682.7k $18.8m | Reduced -64.8k |
| Bellevue Group AG 0.26% of their portfolio | 580.6k $16.0m | Reduced -69.7k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 569.0k $15.7m | Reduced -26.2k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.95% of their portfolio | 544.5k $15.0m | Reduced -10.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 531.2k $14.6m | Reduced -11.3k |
| MORGAN STANLEY 0.00% of their portfolio | 528.6k $14.6m | Reduced -27.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 477.4k $13.2m | Reduced -35.6k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 455.9k $12.6m | Reduced -2.1k |
| INTERNATIONAL BIOTECHNOLOGY TRUST PLC 3.96% of their portfolio | 426.5k $11.8m | Reduced -97.0k |
| Epoch Investment Partners, Inc. 0.07% of their portfolio | 387.7k $10.7m | Reduced -88.4k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 375.8k $10.4m | Added +286.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 355.0k $9.8m | Added +52.3k |
| Tributary Capital Management, LLC 0.92% of their portfolio | 352.4k $9.7m | Added +4.2k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.12% of their portfolio | 346.1k $9.5m | Reduced -1.8k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 303.8k $8.4m | Reduced -13.8k |
| NORGES BANK 0.00% of their portfolio | 297.3k $8.2m | Reduced -43.4k |
| SCOUT INVESTMENTS, INC. 0.18% of their portfolio | 286.8k $7.8m | Reduced -8.3k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 267.3k $7.4m | Reduced -1.5k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 230.6k $6.4m | Reduced -57.7k |
| Integral Health Asset Management, LLC 0.86% of their portfolio | 220.0k $6.1m | Added +145.0k |
| S&T Bank/PA 1.15% of their portfolio | 215.6k $5.9m | Reduced -5.7k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.06% of their portfolio | 200.7k $5.5m | Reduced -2.0k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 196.1k $5.4m | Reduced -83.3k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 166.5k $4.6m | Added +2.0k |
| CW Advisors, LLC 0.09% of their portfolio | 159.1k $4.4m | Added +6.5k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 157.3k $4.3m | Reduced -33.9k |
| Phocas Financial Corp. 0.63% of their portfolio | 157.1k $4.3m | Reduced -150 |
| Legal & General Group Plc 0.00% of their portfolio | 151.0k $4.2m | Reduced -3.2k |
| Parkman Healthcare Partners LLC 0.70% of their portfolio | 138.2k $3.8m | Reduced -52.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 133.8k $3.7m | Reduced -7.9k |
| Swiss National Bank 0.00% of their portfolio | 119.7k $3.3m | Added +1.3k |
| THIRD AVENUE MANAGEMENT LLC 0.55% of their portfolio | 116.5k $3.3m | Added +49.5k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.01% of their portfolio | 102.5k $2.8m | Added +71.7k |
| HUSSMAN STRATEGIC ADVISORS, INC. 0.49% of their portfolio | 93.6k $2.6m | Unchanged |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 88.5k $2.4m | Reduced -500 |
| Bruce & Co., Inc. 0.77% of their portfolio | 82.1k $2.3m | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 80.6k $2.2m | Added +24.4k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 79.5k $2.2m | Reduced -4.1k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 78.2k $2.2m | Reduced -55.3k |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 78.1k $2.2m | Added +5.9k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 76.5k $2.1m | Added +3.9k |
| BURNEY CO/ 0.09% of their portfolio | 71.7k $2.0m | Reduced -114.6k |
| Public Sector Pension Investment Board 0.01% of their portfolio | 67.5k $1.9m | Reduced -29.2k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 67.0k $1.8m | Reduced -190.2k |
| Bridge City Capital, LLC 0.91% of their portfolio | 65.3k $1.8m | Added +2.5k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 65.0k $1.8m | Reduced -3.3k |
| FEDERATED HERMES, INC. 0.00% of their portfolio | 64.7k $1.8m | Added +9.8k |
| ISTHMUS PARTNERS, LLC 0.26% of their portfolio | 64.5k $1.8m | Added +1.9k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 62.8k $1.7m | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 61.0k $1.7m | Added +123 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 59.0k $1.6m | Reduced -5.2k |
| HRT FINANCIAL LP 0.02% of their portfolio | 56.7k $1.6m | Added +35.1k |
| BARCLAYS PLC 0.00% of their portfolio | 54.8k $1.5m | Added +1.0k |
| Retirement Planning Co of New England, Inc. 0.79% of their portfolio | 51.6k $1.4m | Added +23.7k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 51.2k $1.4m | Added +16.4k |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 51.1k $1.4m | Added +9.9k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 50.7k $1.4m | Reduced -2.9k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 49.9k $1.4m | Reduced -2.2k |
| MARTINGALE ASSET MANAGEMENT L P 0.03% of their portfolio | 48.1k $1.3m | Unchanged |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 47.7k $1.3m | Reduced -7.8k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 47.0k $1.3m | Reduced -14.8k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 46.9k $1.3m | Added +227 |
| TEXAS PERMANENT SCHOOL FUND CORP 0.01% of their portfolio | 46.4k $1.3m | Reduced -1.6k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 46.2k $1.3m | Reduced -1.4k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 44.0k $1.2m | Reduced -6.0k |
| Polaris Capital Management, LLC 0.06% of their portfolio | 42.5k $1.2m | Unchanged |
| CAMPBELL NEWMAN ASSET MANAGEMENT INC 0.11% of their portfolio | 42.4k $1.2m | Added +16.5k |
| EXCHANGE TRADED CONCEPTS, LLC 0.03% of their portfolio | 41.9k $1.2m | Added +26.4k |
| Allspring Global Investments Holdings, LLC 0.00% of their portfolio | 39.6k $1.1m | Reduced -15.6k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 39.3k $1.1m | Added +25.8k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 37.5k $1.0m | Added +13.5k |
| Schonfeld Strategic Advisors LLC 0.01% of their portfolio | 37.2k $1.0m | Reduced -61.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 36.8k $1.0m | Reduced -9.9k |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.01% of their portfolio | 36.5k $1.0m | Reduced -25.1k |
| MERITAGE PORTFOLIO MANAGEMENT 0.07% of their portfolio | 36.1k $994.0k | Added +19.4k |
| NATIXIS ADVISORS, LLC 0.00% of their portfolio | 35.7k $984.0k | Added +1.6k |
| CHARTWELL INVESTMENT PARTNERS, LLC 0.04% of their portfolio | 35.1k $969.0k | Unchanged |
| State of Alaska, Department of Revenue 0.01% of their portfolio | 34.0k $937.0k | Reduced -1.9k |
| DekaBank Deutsche Girozentrale 0.00% of their portfolio | 31.8k $888.0k | Added +9.6k |
| Illinois Municipal Retirement Fund 0.02% of their portfolio | 31.1k $858.0k | New |
| Trexquant Investment LP 0.02% of their portfolio | 30.0k $827.3k | Added +17.4k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 29.9k $824.2k | Reduced -20.6k |