SUPERNUS PHARMACEUTICALS, INC. SUPN
CIK 0001356576 · CUSIP 868459108
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock Inc. CIK 1364742 · View history | $278.00M 10,392,636 shares | 0.01% | +30.28K(+0.30%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $164.18M 6,137,541 shares | 0.00% | -69.27K(-1.10%)Reduced | SEC filing ↗ Aug 13, 2024 | ▾ |
| 03 | ARMISTICE CAPITAL, LLC CIK 1601086 · View history | $141.03M 5,272,000 shares | 3.69% | +1.70M(+47.60%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 04 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $76.69M 2,866,887 shares | 0.02% | +309.97K(+12.10%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 05 | MACQUARIE GROUP LTD CIK 1418333 · View history | $71.69M 2,679,796 shares | 0.08% | +10.80K(+0.40%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 06 | STATE STREET CORP CIK 93751 · View history | $57.88M 2,163,841 shares | 0.00% | +125.19K(+6.10%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 07 | Polar Capital Holdings Plc CIK 1837309 · View history | $51.91M 1,940,510 shares | 0.31% | 0(0.00%)Unchanged | SEC filing ↗ Aug 14, 2024 | ▾ |
| 08 | Stephens Investment Management Group LLC CIK 1314440 · View history | $50.78M 1,898,499 shares | 0.71% | -3.28K(-0.20%)Reduced | SEC filing ↗ Aug 6, 2024 | ▾ |
| 09 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $45.08M 1,685,122 shares | 0.08% | +351.90K(+26.40%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 10 | LOOMIS SAYLES & CO L P CIK 312348 · View history | $41.63M 1,556,161 shares | 0.06% | -41.26K(-2.60%)Reduced | SEC filing ↗ Aug 13, 2024 | ▾ |
| 11 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $37.66M 1,407,613 shares | 0.00% | +100.66K(+7.70%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 12 | Pacer Advisors, Inc. CIK 1616667 · View history | $36.11M 1,349,854 shares | 0.08% | +1.35M(+100,186.30%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 13 | GW&K Investment Management, LLC CIK 1082917 · View history | $34.60M 1,293,315 shares | 0.32% | -46.13K(-3.40%)Reduced | SEC filing ↗ Aug 12, 2024 | ▾ |
| 14 | Aristotle Capital Boston, LLC CIK 1633911 · View history | $32.18M 1,203,166 shares | 1.08% | +63.32K(+5.60%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 15 | VICTORY CAPITAL MANAGEMENT INC CIK 1040188 · View history | $19.66M 735,038 shares | 0.02% | +87.20K(+13.50%)Added | SEC filing ↗ Aug 5, 2024 | ▾ |
| 16 | ASHFORD CAPITAL MANAGEMENT INC CIK 897070 · View history | $19.04M 711,894 shares | 2.57% | -51.57K(-6.80%)Reduced | SEC filing ↗ Aug 15, 2024 | ▾ |
| 17 | MORGAN STANLEY CIK 895421 · Amended · View history | $17.94M 670,567 shares | 0.00% | +20.34K(+3.10%)Added | SEC filing ↗ May 14, 2025 | ▾ |
| 18 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · Amended · View history | $16.61M 621,041 shares | 0.00% | +28.39K(+4.80%)Added | SEC filing ↗ Aug 12, 2024 | ▾ |
| 19 | NORTHERN TRUST CORP CIK 73124 · View history | $16.04M 599,519 shares | 0.00% | -19.69K(-3.20%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 20 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $15.79M 590,333 shares | 0.00% | +275.44K(+87.50%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
Showing 20 / 245 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 245 reporting institutions.
This page includes 20 of 245 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 245 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"868459108","quarter":"2024Q2","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.