What does CUSIP 868459108 represent in this 13F holders report?

CUSIP 868459108 is the security identifier for SUPN - SUPERNUS PHARMACEUTICALS, INC. - Common Stock used to aggregate holder disclosures.

How many institutions held SUPN - SUPERNUS PHARMACEUTICALS, INC. - Common Stock in Q1 2015?

116 institutional investors reported SUPN - SUPERNUS PHARMACEUTICALS, INC. - Common Stock for Q1 2015. Use the holders table for investor-level position and value details.

SUPERNUS PHARMACEUTICALS, INC. - Common Stock (SUPN)

CUSIP: 868459108

Q1 2015 13F Holders as of 31 Mar 2015

Type / Class: Equity / Common Stock
Shares outstanding: 57,671,650
Total 13F shares: 40,418,381
Share change: +3,456,177
Total reported value: $488,565,846
Put/Call ratio: 36%
Price per share: $12.09
Number of holders: 116
Value change: +$44,904,974
Number of buys: 69
Number of sells: 41

Quarterly Holders Quick Answers

What is CUSIP 868459108?
CUSIP 868459108 identifies SUPN - SUPERNUS PHARMACEUTICALS, INC. - Common Stock in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2015
Previous quarter: Q4 2014

Recent filing periods for CUSIP 868459108:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of SUPN - SUPERNUS PHARMACEUTICALS, INC. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
NEA Management Company, LLC	13F	Company	18%	10,650,000	$88,395,000	—	31 Dec 2014	13F
Michael R. Murphy	13F	Individual	5.4%	3,095,589	$25,693,000	—	31 Dec 2014	13F
Abingworth LLP	13F	Company	5%	2,879,328	$23,927,000	—	31 Dec 2014	13F
ARDSLEY ADVISORY PARTNERS LP	13F	Company	3.3%	1,890,000	$15,688,000	—	31 Dec 2014	13F
AMERIPRISE FINANCIAL INC	13F	Company	2.5%	1,466,709	$12,172,000	—	31 Dec 2014	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	2.5%	1,421,832	$11,801,000	—	31 Dec 2014	13F
BlackRock Fund Advisors	13F	Company	2.3%	1,334,515	$11,076,000	—	31 Dec 2014	13F
NORTHPOINTE CAPITAL LLC	13F	Company	1.7%	981,062	$8,143,000	—	31 Dec 2014	13F
VANGUARD GROUP INC	13F	Company	1.4%	821,509	$6,819,000	—	31 Dec 2014	13F
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC	13F	Company	1.3%	761,715	$6,322,000	—	31 Dec 2014	13F
Bruce & Co., Inc.	13F	Company	1.2%	694,581	$5,765,000	—	31 Dec 2014	13F
KOPP INVESTMENT ADVISORS LLC	13F	Company	1%	605,245	$5,024,000	—	31 Dec 2014	13F
ORBIMED ADVISORS LLC	13F	Company	1%	580,000	$4,814,000	—	31 Dec 2014	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.97%	560,058	$4,648,000	—	31 Dec 2014	13F
Iguana Healthcare Management, LLC	13F	Company	0.87%	500,000	$4,150,000	—	31 Dec 2014	13F
AlphaOne Investment Services, LLC	13F	Company	0.82%	471,911	$3,917,000	—	31 Dec 2014	13F
WHITEBOX ADVISORS LLC	13F	Company	0.73%	420,089	$3,487,000	—	31 Dec 2014	13F
ASHFORD CAPITAL MANAGEMENT INC	13F	Company	0.73%	418,400	$3,473,000	—	31 Dec 2014	13F
TFS CAPITAL LLC	13F	Company	0.72%	413,512	$3,432,000	—	31 Dec 2014	13F
Opaleye Management Inc.	13F	Company	0.61%	350,000	$2,905,000	—	31 Dec 2014	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.55%	317,726	$2,637,000	—	31 Dec 2014	13F
STATE STREET CORP	13F	Company	0.52%	301,853	$2,506,000	—	31 Dec 2014	13F
NORTHERN TRUST CORP	13F	Company	0.51%	291,637	$2,420,000	—	31 Dec 2014	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	0.48%	277,133	$2,300,000	—	31 Dec 2014	13F
CITADEL ADVISORS LLC	13F	Company	0.46%	263,716	$2,189,000	—	31 Dec 2014	13F
EVENTIDE ASSET MANAGEMENT, LLC	13F	Company	0.45%	257,000	$2,133,000	—	31 Dec 2014	13F
Rhenman & Partners Asset Management AB	13F	Company	0.43%	250,800	$2,082,000	—	31 Dec 2014	13F
PICTET ASSET MANAGEMENT LTD	13F	Company	0.41%	238,300	$1,978,000	—	31 Dec 2014	13F
Allianz Asset Management GmbH	13F	Company	0.38%	217,838	$1,808,000	—	31 Dec 2014	13F
MORGAN STANLEY	13F	Company	0.33%	189,565	$1,573,000	—	31 Dec 2014	13F
FRANKLIN STREET ADVISORS INC /NC	13F	Company	0.33%	188,975	$1,568,000	—	31 Dec 2014	13F
AQR CAPITAL MANAGEMENT LLC	13F	Company	0.32%	183,171	$1,520,000	—	31 Dec 2014	13F
CREDIT SUISSE AG/	13F	Company	0.28%	161,147	$1,337,000	—	31 Dec 2014	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.27%	157,049	$1,304,000	—	31 Dec 2014	13F
Ranger Investment Management, L.P.	13F	Company	0.26%	148,130	$1,229,000	—	31 Dec 2014	13F
Alyeska Investment Group, L.P.	13F	Company	0.26%	148,001	$1,228,000	—	31 Dec 2014	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.25%	147,020	$1,220,000	—	31 Dec 2014	13F
PANAGORA ASSET MANAGEMENT INC	13F	Company	0.24%	137,985	$1,145,000	—	31 Dec 2014	13F
REINHART PARTNERS, LLC.	13F	Company	0.23%	130,711	$1,085,000	—	31 Dec 2014	13F
C WorldWide Group Holding A/S	13F	Company	0.23%	130,000	$1,079,000	—	31 Dec 2014	13F
KENNEDY CAPITAL MANAGEMENT LLC	13F	Company	0.23%	129,969	$1,079,000	—	31 Dec 2014	13F
Bank of New York Mellon Corp	13F	Company	0.22%	127,692	$1,060,000	—	31 Dec 2014	13F
CADENCE CAPITAL MANAGEMENT LLC	13F	Company	0.19%	109,990	$913,000	—	31 Dec 2014	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.18%	101,689	$844,000	—	31 Dec 2014	13F
Granite Investment Partners, LLC	13F	Company	0.17%	99,166	$823,000	—	31 Dec 2014	13F
Nationwide Fund Advisors	13F	Company	0.17%	98,950	$821,000	—	31 Dec 2014	13F
Spark Investment Management LLC	13F	Company	0.17%	98,500	$818,000	—	31 Dec 2014	13F
ESSEX INVESTMENT MANAGEMENT CO LLC	13F	Company	0.16%	94,710	$786,000	—	31 Dec 2014	13F
MENTA CAPITAL LLC	13F	Company	0.16%	93,401	$775,000	—	31 Dec 2014	13F
BlackRock Investment Management, LLC	13F	Company	0.15%	84,931	$705,000	—	31 Dec 2014	13F

Institutional Holders of SUPERNUS PHARMACEUTICALS, INC. - Common Stock (SUPN) as of Q1 2015

As of 31 Mar 2015, SUPERNUS PHARMACEUTICALS, INC. - Common Stock (SUPN) was held by 116 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 40,418,381 shares. The largest 10 holders included NEA Management Company, LLC, Consonance Capital Management LP, Murphy Michael R, Abingworth LLP, Ameriprise Financial Inc, BlackRock Fund Advisors, NORTHPOINTE CAPITAL LLC, PRICE T ROWE ASSOCIATES INC /MD/, ARDSLEY ADVISORY PARTNERS, and VANGUARD GROUP INC. This page lists 116 institutional shareholders reporting positions in this security for the Q1 2015 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2015 vs Q4 2014 Across Filers

Q4 2014 holders

105

Q1 2015 holders

116

Holder diff

Investor	Q4 2014 Shares	Q1 2015 Shares	Share Diff	Share Chg %	Q4 2014 Value $	Q1 2015 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.