LOOMIS SAYLES & CO L P

Position in SUPN — Supernus Pharmaceuticals, Inc.

CIK 312348 BOSTON, MA

Back to SUPN Full portfolio

Position in SUPN

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$68,611,179

-$5,087,337 QoQ

Shares Held

1,475,192

+3.5% QoQ

Ownership

2.54%

of shares outstanding

% of Portfolio

0.09%

of 13F equity value

Holder Rank

#12

of 331 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 89% Shared 0% None 11%

Common Shares in SUPN Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Jun 30, 2026

LOOMIS SAYLES & CO L P holds $224,982,288 across 8 Drug Manufacturers - Specialty & Generic names. SUPN ranks #2 (30.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ALKS	Alkermes plc.	1,585,518	$83,081,142
2	SUPN	Supernus Pharmaceuticals, Inc. This page	1,475,192	$68,611,179
3	NBIX	Neurocrine Biosciences Inc	182,514	$30,760,908
4	LNTH	Lantheus Holdings, Inc.	141,424	$15,689,578
5	ANIP	Ani Pharmaceuticals Inc	162,792	$13,475,921
6	COLL	Collegium Pharmaceutical, Inc	364,999	$13,212,963
7	UTHR	UNITED THERAPEUTICS Corp	255	$138,166
8	ZTS	Zoetis Inc.	173	$12,431

All Filings in SUPN

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26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$68,611,179	1,475,192	+3.5%	Shares	Defined	2026-08-14
2026-03-31	$73,698,516	1,425,779	-1.6%	Shares	Defined	2026-05-14
2025-12-31	$72,007,447	1,448,842	+12.7%	Shares	Defined	2026-02-12
2025-09-30	$61,454,928	1,285,937	-0.9%	Shares	Defined	2025-11-13
2025-06-30	$40,908,483	1,297,858	-9.9%	Shares	Defined	2025-08-13
2025-03-31	$47,181,090	1,440,644	-1.8%	Shares	Defined	2025-05-14
2024-12-31	$53,047,696	1,467,027	-3.2%	Shares	Defined	2025-02-12
2024-09-30	$47,272,714	1,516,123	-2.6%	Shares	Defined	2024-11-13
2024-06-30	$41,627,306	1,556,161	-2.6%	Shares	Defined	2024-08-13
2024-03-31	$54,487,893	1,597,417	-2.4%	Shares	Defined	2024-05-14
2023-12-31	$47,360,020	1,636,490	-5.4%	Shares	Defined	2024-02-13
2023-09-30	$47,703,516	1,730,269	+8.6%	Shares	Defined	2023-11-09
2023-06-30	$47,894,748	1,593,305	+2.1%	Shares	Defined	2023-08-11
2023-03-31	$56,521,045	1,560,062	+0.0%	Shares	Defined	2023-05-15
2022-12-31	$55,628,612	1,559,535	-2.6%	Shares	Defined	2023-02-10
2022-09-30	$54,204,106	1,601,303	-0.6%	Shares	Defined	2022-11-14
2022-06-30	$46,589,020	1,610,962	-1.1%	Shares	Defined	2022-08-05
2022-03-31	$52,670,610	1,629,660	-2.5%	Shares	Defined	2022-05-13
2021-12-31	$48,732,600	1,671,214	+1.3%	Shares	Defined	2022-02-14
2021-09-30	$44,020,620	1,650,567	+1.9%	Shares	Defined	2021-11-12
2021-06-30	$49,851,011	1,619,065	+274.5%	Shares	Defined	2021-08-13
2021-03-31	$11,318,215	432,323	+23.5%	Shares	Defined	2021-05-17
2020-12-31	$8,809,220	350,128	-3.3%	Shares	Defined	2021-02-12
2020-09-30	$7,544,121	362,002	-0.4%	Shares	Defined	2020-11-12
2020-06-30	$8,633,172	363,502	-3.3%	Shares	Defined	2020-08-14
2020-03-31	$6,760,120	375,771	—	Shares	Defined	2020-05-15
No filing history on record for this holder in this stock.