Company · Ownership research

SUPERNUS PHARMACEUTICALS, INC. SUPN

CIK 0001356576 · CUSIP 868459108

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 868459108 (SUPN), not CUSIP 868459958 (SUPN), CUSIP 868459908 (SUPN), and does not merge CUSIPs.

This page lists the top 20 of 294 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$361.53M 9,997,936 shares	0.01%	-69.00K(-0.70%)Reduced	SEC filing ↗ Feb 7, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$222.41M 6,150,759 shares	0.00%	+22.85K(+0.40%)Added	SEC filing ↗ Feb 11, 2025	▾
03	ARMISTICE CAPITAL, LLC CIK 1601086 · View history	$174.87M 4,836,000 shares	4.07%	-260.00K(-5.10%)Reduced	SEC filing ↗ Feb 14, 2025	▾
04	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$104.09M 2,878,545 shares	0.02%	-3.96K(-0.10%)Reduced	SEC filing ↗ Feb 13, 2025	▾
05	MACQUARIE GROUP LTD CIK 1418333 · View history	$95.06M 2,628,907 shares	0.11%	-2.99K(-0.10%)Reduced	SEC filing ↗ Feb 14, 2025	▾
06	STATE STREET CORP CIK 93751 · View history	$79.13M 2,188,205 shares	0.00%	+31.78K(+1.50%)Added	SEC filing ↗ Feb 14, 2025	▾
07	Stephens Investment Management Group LLC CIK 1314440 · View history	$63.35M 1,752,068 shares	0.85%	-180.14K(-9.30%)Reduced	SEC filing ↗ Jan 28, 2025	▾
08	Polar Capital Holdings Plc CIK 1837309 · View history	$61.04M 1,687,930 shares	0.34%	-250.00K(-12.90%)Reduced	SEC filing ↗ Feb 14, 2025	▾
09	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$57.81M 1,598,722 shares	0.09%	-129.90K(-7.50%)Reduced	SEC filing ↗ Feb 13, 2025	▾
10	Pacer Advisors, Inc. CIK 1616667 · View history	$57.76M 1,597,456 shares	0.13%	-155.43K(-8.90%)Reduced	SEC filing ↗ Jan 22, 2025	▾
11	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$54.63M 1,510,568 shares	0.00%	+28.52K(+1.90%)Added	SEC filing ↗ Feb 12, 2025	▾
12	LOOMIS SAYLES & CO L P CIK 312348 · View history	$53.05M 1,467,027 shares	0.07%	-49.10K(-3.20%)Reduced	SEC filing ↗ Feb 12, 2025	▾
13	GW&K Investment Management, LLC CIK 1082917 · View history	$43.62M 1,206,350 shares	0.37%	-31.66K(-2.60%)Reduced	SEC filing ↗ Feb 5, 2025	▾
14	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$41.25M 1,140,705 shares	0.02%	+95.78K(+9.20%)Added	SEC filing ↗ Feb 11, 2025	▾
15	Aristotle Capital Boston, LLC CIK 1633911 · View history	$38.90M 1,075,868 shares	1.44%	-118.36K(-9.90%)Reduced	SEC filing ↗ Feb 14, 2025	▾
16	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$33.77M 933,952 shares	0.01%	+34.31K(+3.80%)Added	SEC filing ↗ Feb 11, 2025	▾
17	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$27.24M 753,363 shares	0.01%	+40.97K(+5.80%)Added	SEC filing ↗ Feb 6, 2025	▾
18	NORTHERN TRUST CORP CIK 73124 · View history	$25.93M 717,161 shares	0.00%	+110.87K(+18.30%)Added	SEC filing ↗ Feb 14, 2025	▾
19	VICTORY CAPITAL MANAGEMENT INC CIK 1040188 · View history	$25.83M 714,321 shares	0.03%	-28.55K(-3.80%)Reduced	SEC filing ↗ Feb 6, 2025	▾
20	MORGAN STANLEY CIK 895421 · Amended · View history	$24.50M 677,667 shares	0.00%	-48.45K(-6.70%)Reduced	SEC filing ↗ May 15, 2025	▾

Showing 20 / 294 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

294

Cancelled or null records excluded

Disclosed shares

59,507,530

Not deduplicated across managers

Disclosed value

$2.15B

Not market cap or free float

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.

SUPERNUS PHARMACEUTICALS, INC. · Q4 2024

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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.