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 2012383 · View history | $415.70M 8,698,410 shares | 0.01% | -669.48K(-7.10%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $288.88M 6,044,750 shares | 0.00% | -160.51K(-2.60%)Reduced | SEC filing ↗ Nov 7, 2025 | ▾ |
| 03 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $143.46M 3,001,941 shares | 0.03% | -19.27K(-0.60%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 04 | ARMISTICE CAPITAL, LLC CIK 1601086 · View history | $135.53M 2,836,000 shares | 4.25% | -1.98M(-41.10%)Reduced | SEC filing ↗ Nov 17, 2025 | ▾ |
| 05 | MACQUARIE GROUP LTD CIK 1418333 · View history | $120.98M 2,531,537 shares | 0.14% | -230.59K(-8.30%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 06 | STATE STREET CORP CIK 93751 · View history | $104.54M 2,187,560 shares | 0.00% | -21.00K(-1.00%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 07 | Point72 Asset Management, L.P. CIK 1603466 · View history | $84.18M 1,761,484 shares | 0.18% | +1.25M(+246.90%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 08 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $83.18M 1,740,622 shares | 0.11% | +85.30K(+5.20%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 09 | CITADEL ADVISORS LLC CIK 1423053 · View history | $67.71M 1,416,926 shares | 0.05% | +1.24M(+709.10%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 10 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $67.39M 1,410,024 shares | 0.00% | +10.41K(+0.70%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 11 | Stephens Investment Management Group LLC CIK 1314440 · View history | $64.30M 1,345,402 shares | 0.83% | -235.69K(-14.90%)Reduced | SEC filing ↗ Oct 28, 2025 | ▾ |
| 12 | LOOMIS SAYLES & CO L P CIK 312348 · View history | $61.45M 1,285,937 shares | 0.07% | -11.92K(-0.90%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 13 | Woodline Partners LP CIK 1784547 · View history | $60.40M 1,263,811 shares | 0.28% | +490.83K(+63.50%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 14 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $55.58M 1,163,058 shares | 0.01% | +266.67K(+29.70%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 15 | GW&K Investment Management, LLC CIK 1082917 · View history | $51.64M 1,080,538 shares | 0.46% | -184.27K(-14.60%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 16 | D. E. Shaw & Co., Inc. CIK 1009207 · View history | $46.82M 979,604 shares | 0.04% | +380.98K(+63.60%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 17 | BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history | $40.28M 842,890 shares | 0.00% | +338.58K(+67.10%)Added | SEC filing ↗ Feb 3, 2026 | ▾ |
| 18 | MORGAN STANLEY CIK 895421 · Amended · View history | $36.10M 755,317 shares | 0.00% | +61.56K(+8.90%)Added | SEC filing ↗ May 27, 2026 | ▾ |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $35.01M 732,489 shares | 0.01% | -16.15K(-2.20%)Reduced | SEC filing ↗ Nov 10, 2025 | ▾ |
| 20 | NORTHERN TRUST CORP CIK 73124 · View history | $33.62M 703,555 shares | 0.00% | -6.81K(-1.00%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
Showing 20 / 310 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 310 reporting institutions.
This page includes 20 of 310 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 310 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":"2025Q3","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.