Who owns Supernus Pharmaceuticals (SUPN)
Which tracked institutional funds hold SUPN, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SUPN company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
49 tracked funds added or opened SUPN while 100 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
SUPN’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes SUPN more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in SUPN divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 303 tracked filers holding SUPN, 157 increased or opened the position and 170 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in SUPN between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 12
- Soleus Capital Management, L.P.$24M
- MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC$9M
- Hillsdale Investment Management Inc.$5M
- Jump Financial, LLC$5M
- ALGERT GLOBAL LLC$4M
- Edgestream Partners, L.P.$3M
Full exits 32
- Point72 Asset Management, L.P.$68M
- GW&K Investment Management, LLC$55M
- SG Americas Securities, LLC$19M
- Krensavage Asset Management, LLC$15M
- Pacer Advisors, Inc.$14M
- Hudson Bay Capital Management LP$5M
Largest adds
- BlackRock, Inc.$117M
- TWO SIGMA INVESTMENTS, LP$41M
- ARMISTICE CAPITAL, LLC$25M
- Qube Research & Technologies Ltd$17M
- Woodline Partners LP$10M
- SCHRODER INVESTMENT MANAGEMENT GROUP$9M
Largest trims
- Assenagon Asset Management S.A.$24M
- DIMENSIONAL FUND ADVISORS LP$23M
- RENAISSANCE TECHNOLOGIES LLC$19M
- Freestone Grove Partners LP$18M
- MetLife Investment Management, LLC$14M
- VANGUARD PORTFOLIO MANAGEMENT LLC$14M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 9,350,046 | $435M | 16.5% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 3,853,212 | $179M | 6.8% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 3,305,429 | $154M | 5.8% | 2026-Q2 |
| ARMISTICE CAPITAL, LLC added | 2,646,201 | $123M | 4.7% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 2,516,721 | $117M | 4.5% | 2026-Q2 |
| STATE STREET CORP added | 2,459,828 | $114M | 4.3% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. added | 2,378,329 | $111M | 4.2% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 2,078,090 | $97M | 3.7% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 1,570,088 | $73M | 2.8% | 2026-Q2 |
| Stephens Investment Management Group LLC added | 1,485,821 | $69M | 2.6% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 1,478,180 | $69M | 2.6% | 2026-Q2 |
| LOOMIS SAYLES & CO L P added | 1,475,192 | $69M | 2.6% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 1,373,982 | $64M | 2.4% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 1,184,378 | $55M | 2.1% | 2026-Q2 |
| Sofinnova Investments, Inc. added | 1,036,328 | $48M | 1.8% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 922,166 | $43M | 1.6% | 2026-Q2 |
| MORGAN STANLEY trimmed | 876,841 | $41M | 1.6% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 819,432 | $38M | 1.4% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 767,668 | $36M | 1.4% | 2026-Q2 |
| NORTHERN TRUST CORP added | 733,374 | $34M | 1.3% | 2026-Q2 |
| Woodline Partners LP added | 708,276 | $33M | 1.3% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 703,552 | $33M | 1.2% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 621,102 | $29M | 1.1% | 2026-Q2 |
| ASHFORD CAPITAL MANAGEMENT INC trimmed | 613,783 | $29M | 1.1% | 2026-Q2 |
| Soleus Capital Management, L.P. new | 520,000 | $24M | 0.9% | 2026-Q2 |
| RICE HALL JAMES & ASSOCIATES, LLC added | 490,221 | $23M | 0.9% | 2026-Q2 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP added | 474,131 | $22M | 0.8% | 2026-Q2 |
| Aberdeen Group plc added | 453,206 | $21M | 0.8% | 2026-Q2 |
| Pictet Asset Management Holding SA trimmed | 432,478 | $20M | 0.8% | 2026-Q2 |
| Invesco Ltd. added | 395,101 | $18M | 0.7% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 391,075 | $18M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 384,828 | $18M | 0.7% | 2026-Q2 |
| Bank of New York Mellon Corp added | 377,402 | $18M | 0.7% | 2026-Q2 |
| SCHRODER INVESTMENT MANAGEMENT GROUP added | 368,017 | $17M | 0.7% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 348,461 | $16M | 0.6% | 2026-Q2 |
| Freestone Grove Partners LP trimmed | 316,398 | $15M | 0.6% | 2026-Q2 |
| FMR LLC added | 309,091 | $14M | 0.5% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 272,329 | $13M | 0.5% | 2026-Q2 |
| Nuveen, LLC added | 262,675 | $12M | 0.5% | 2026-Q2 |
| UBS Group AG added | 220,457 | $10M | 0.4% | 2026-Q2 |
| GLENMEDE TRUST CO NA trimmed | 210,952 | $10M | 0.4% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 199,351 | $9M | 0.4% | 2026-Q2 |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC trimmed | 182,909 | $9M | 0.3% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 171,529 | $8M | 0.3% | 2026-Q2 |
| Aristotle Capital Boston, LLC trimmed | 169,686 | $8M | 0.3% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 160,129 | $7M | 0.3% | 2026-Q2 |
| Man Group plc added | 156,422 | $7M | 0.3% | 2026-Q2 |
| THIRD AVENUE MANAGEMENT LLC | 152,724 | $7M | 0.3% | 2026-Q2 |
| Bruce & Co., Inc. added | 150,000 | $7M | 0.3% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 148,579 | $7M | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 144,789 | $7M | 0.3% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 143,857 | $7M | 0.3% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 140,207 | $7M | 0.2% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 138,346 | $6M | 0.2% | 2026-Q2 |
| Legal & General Group Plc trimmed | 135,434 | $6M | 0.2% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC trimmed | 116,160 | $5M | 0.2% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 115,125 | $5M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 109,800 | $5M | 0.2% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 106,840 | $5M | 0.2% | 2026-Q2 |
| Hillsdale Investment Management Inc. added | 103,680 | $5M | 0.2% | 2026-Q2 |
| Jump Financial, LLC added | 100,602 | $5M | 0.2% | 2026-Q2 |
| AXIOM INVESTORS LLC /DE trimmed | 94,465 | $4M | 0.2% | 2026-Q2 |
| ALGERT GLOBAL LLC added | 91,070 | $4M | 0.2% | 2026-Q2 |
| Hennion & Walsh Asset Management, Inc. added | 90,213 | $4M | 0.2% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 88,756 | $4M | 0.2% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 85,767 | $4M | 0.2% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 85,756 | $4M | 0.2% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 85,289 | $4M | 0.2% | 2026-Q2 |
| Atom Investors LP added | 79,936 | $4M | 0.1% | 2026-Q2 |
| Bridge City Capital, LLC added | 78,167 | $4M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 76,622 | $4M | 0.1% | 2026-Q2 |
| MARTINGALE ASSET MANAGEMENT L P added | 74,348 | $3M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 73,349 | $4M | 0.1% | 2026-Q2 |
| CAPITAL FUND MANAGEMENT S.A. added | 73,219 | $3M | 0.1% | 2026-Q2 |
| Assenagon Asset Management S.A. trimmed | 73,175 | $3M | 0.1% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 71,393 | $3M | 0.1% | 2026-Q2 |
| Elmind Capital, LP added | 70,000 | $3M | 0.1% | 2026-Q2 |
| WEDGE CAPITAL MANAGEMENT L L P/NC trimmed | 68,885 | $3M | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 67,265 | $3M | 0.1% | 2026-Q2 |
| Edgestream Partners, L.P. trimmed | 66,573 | $3M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 63,729 | $3M | 0.1% | 2026-Q2 |
| STIFEL FINANCIAL CORP added | 62,430 | $3M | 0.1% | 2026-Q2 |
| VELA Investment Management, LLC added | 61,703 | $3M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 61,207 | $3M | 0.1% | 2026-Q2 |
| Phocas Financial Corp. trimmed | 60,253 | $3M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 53,628 | $2M | 0.1% | 2026-Q2 |
| NFJ INVESTMENT GROUP, LLC | 52,790 | $2M | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 51,862 | $2M | 0.1% | 2026-Q2 |
| Allworth Financial LP added | 50,669 | $2M | 0.1% | 2026-Q2 |
| XTX Topco Ltd added | 50,151 | $2M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 50,085 | $2M | 0.1% | 2026-Q2 |
| ASSETMARK, INC added | 49,713 | $2M | 0.1% | 2026-Q2 |
| Quantbot Technologies LP added | 47,700 | $2M | 0.1% | 2026-Q2 |
| CAMPBELL NEWMAN ASSET MANAGEMENT INC added | 46,847 | $2M | 0.1% | 2026-Q2 |
| S&T Bank/PA trimmed | 43,888 | $2M | 0.1% | 2026-Q2 |
| CAPTRUST FINANCIAL ADVISORS added | 41,958 | $2M | 0.1% | 2026-Q2 |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 41,593 | $2M | 0.1% | 2026-Q2 |
| EXCHANGE TRADED CONCEPTS, LLC added | 40,971 | $2M | 0.1% | 2026-Q2 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main trimmed | 39,690 | $2M | 0.1% | 2026-Q2 |
| ROYCE & ASSOCIATES LP trimmed | 39,525 | $2M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.