How many shares of SUPN does LOOMIS SAYLES & CO L P own?

As of 2026-Q1, LOOMIS SAYLES & CO L P holds 1.4M shares of SUPN (SUPERNUS PHARMACEUTICALS).

What is LOOMIS SAYLES & CO L P's SUPN position worth?

As of 2026-Q1, LOOMIS SAYLES & CO L P's SUPN position is worth $73.7M.

In 2026-Q1, LOOMIS SAYLES & CO L P decreased their SUPN position (-1.6% change in shares).

Based on available 13F filings, LOOMIS SAYLES & CO L P first reported a position in SUPN in 2018-Q4. They have held the position across 30 quarters.

Position history for LOOMIS SAYLES & CO L P's holdings in SUPERNUS PHARMACEUTICALS

Current Value

$73.7M

Current Shares

1.4M

Total Value Change

+$58.9M

Total Shares Change

+981,795

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	Decreased	1.4M	-1.6%	$73.7M	0.1%	$54.56	0
2025-Q4	Increased	1.4M	+12.7%	$72M	0.1%	$49.89	33
2025-Q3	Decreased	1.3M	-0.9%	$61.5M	0.1%	$47.60	0
2025-Q2	Decreased	1.3M	-9.9%	$40.9M	0.1%	$31.16	0
2025-Q1	Decreased	1.4M	-1.8%	$47.2M	0.1%	$32.29	0
2024-Q4	Decreased	1.5M	-3.2%	$53M	0.1%	$36.91	0
2024-Q3	Decreased	1.5M	-2.6%	$47.3M	0.1%	$30.75	0
2024-Q2	Decreased	1.6M	-2.6%	$41.6M	0.1%	$26.75	0
2024-Q1	Decreased	1.6M	-2.4%	$54.5M	0.1%	$34.11	0
2023-Q4	Decreased	1.6M	-5.4%	$47.4M	0.1%	$28.94	0
2023-Q3	Increased	1.7M	+8.6%	$47.7M	0.1%	$27.57	32
2023-Q2	Increased	1.6M	+2.1%	$47.9M	0.1%	$29.91	30
2023-Q1	Increased	1.6M	+0.0%	$56.5M	0.1%	$36.27	29
2022-Q4	Decreased	1.6M	-2.6%	$55.6M	0.1%	$35.67	0
2022-Q3	Decreased	1.6M	-0.6%	$54.2M	0.1%	$33.28	0
2022-Q2	Decreased	1.6M	-1.1%	$46.6M	0.1%	$28.50	0
2022-Q1	Decreased	1.6M	-2.5%	$52.7M	0.1%	$32.40	0
2021-Q4	Increased	1.7M	+1.3%	$48.7M	0.1%	$30.03	30
2021-Q3	Increased	1.7M	+1.9%	$44M	0.1%	$26.85	30
2021-Q2	Increased	1.6M	+274.5%	$49.9M	0.1%	$31.63	47
2021-Q1	Increased	432,323	+23.5%	$11.3M	0.0%	$26.17	34
2020-Q4	Decreased	350,128	-3.3%	$8.8M	0.0%	$25.08	0
2020-Q3	Decreased	362,002	-0.4%	$7.5M	0.0%	$20.86	0
2020-Q2	Decreased	363,502	-3.3%	$8.6M	0.0%	$23.27	0
2020-Q1	Decreased	375,771	-40.8%	$6.8M	0.0%	$17.16	0
2019-Q4	Decreased	634,301	-43.2%	$15M	0.0%	$23.35	0
2019-Q3	Increased	1.1M	+11.3%	$30.7M	0.1%	$27.47	32
2019-Q2	Increased	1M	+136.0%	$33.2M	0.1%	$33.09	47
2019-Q1	Decreased	425,128	-4.3%	$14.9M	0.0%	$35.04	0
2018-Q4	New	443,984	-	$14.7M	0.0%	$32.36	39