ADVISORY RESEARCH INC

Position in SUPN — Supernus Pharmaceuticals, Inc.

CIK 902584 CHICAGO, IL

Position in SUPN

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$1,012,865

+$20,108 QoQ

Shares Held

19,595

-1.9% QoQ

Ownership

0.034%

of shares outstanding

% of Portfolio

0.14%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2022

17 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

ADVISORY RESEARCH INC holds $1,509,177 across 2 Drug Manufacturers - Specialty & Generic names. SUPN ranks #1 (67.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)	Open
1	SUPN	Supernus Pharmaceuticals, Inc. This page	19,595	$1,012,865
2	AMPH	Amphastar Pharmaceuticals, Inc.	25,335	$496,312

17 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,012,865	19,595	-1.9%	Shares	Sole	2026-05-14
2025-12-31	$992,757	19,975	+4.8%	Shares	Sole	2026-02-13
2025-09-30	$910,590	19,054	+3.6%	Shares	Sole	2025-11-13
2025-06-30	$579,873	18,397	+6.8%	Shares	Sole	2025-08-13
2025-03-31	$564,020	17,222	+0.3%	Shares	Sole	2025-05-14
2024-12-31	$621,192	17,179	+0.5%	Shares	Sole	2025-02-13
2024-09-30	$533,084	17,097	+2.0%	Shares	Sole	2024-11-14
2024-06-30	$448,490	16,766	+6.8%	Shares	Sole	2024-08-13
2024-03-31	$535,424	15,697	-4.9%	Shares	Sole	2024-05-14
2023-12-31	$477,741	16,508	-5.9%	Shares	Sole	2024-02-13
2023-09-30	$483,522	17,538	-3.1%	Shares	Sole	2023-11-13
2023-06-30	$543,845	18,092	+4.1%	Shares	Sole	2023-08-14
2023-03-31	$629,641	17,379	+1.3%	Shares	Sole	2023-05-12
2022-12-31	$612,168	17,162	-35.8%	Shares	Sole	2023-02-13
2022-09-30	$904,607	26,724	+0.3%	Shares	Sole	2022-11-15
2022-06-30	$770,168	26,631	+9.9%	Shares	Sole	2022-08-17
2022-03-31	$783,145	24,231	—	Shares	Sole	2022-05-16
No filing history on record for this holder in this stock.