Rock Springs Capital Management LP

CIK

1595725

City

Baltimore

State / Country

Stock

ASND — Ascendis Pharma A/S

Top Portfolio Positions

98 positions · $1,690,777,301 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
RVMD	Revolution Medicines, Inc. Healthcare	1,209,465	$117,620,471	6.96%
LLY	ELI LILLY & Co Healthcare	98,700	$90,781,299	5.37%
MDGL	Madrigal Pharmaceuticals, Inc. Healthcare	170,999	$89,512,846	5.29%
MIRM	Mirum Pharmaceuticals, Inc. Healthcare	811,294	$74,947,339	4.43%
ARGX	Argenx SE Healthcare	98,500	$71,929,625	4.25%
RYTM	Rhythm Pharmaceuticals, Inc. Healthcare	689,748	$59,987,383	3.55%
INSM	INSMED Inc Healthcare	314,300	$51,394,336	3.04%
ASND	Ascendis Pharma A/S Healthcare	194,000	$44,373,620	2.62%
XENE	Xenon Pharmaceuticals Inc. Healthcare	763,020	$44,369,613	2.62%
TVTX	Travere Therapeutics, Inc. Healthcare	1,477,954	$43,910,013	2.60%

25 quarters · across all stocks

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25 of 25 shown

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$44,373,620	194,000	-4.7%	Shares	Sole	2026-05-15
2025-12-31	$43,394,340	203,500	-5.1%	Shares	Sole	2026-02-17
2025-09-30	$42,644,745	214,500	-1.2%	Shares	Sole	2025-11-14
2025-06-30	$37,454,200	217,000	+0.5%	Shares	Sole	2025-08-14
2025-03-31	$33,665,760	216,000	-29.2%	Shares	Sole	2025-05-15
2024-12-31	$41,989,350	305,000	-6.2%	Shares	Sole	2025-02-14
2024-09-30	$48,525,750	325,000	+12.1%	Shares	Sole	2024-11-14
2024-06-30	$39,550,200	290,000	0.0%	Shares	Sole	2024-08-14
2024-03-31	$43,839,300	290,000	0.0%	Shares	Sole	2024-05-15
2023-12-31	$36,525,500	290,000	-31.8%	Shares	Sole	2024-02-14
2023-09-30	$39,843,820	425,500	0.0%	Shares	Sole	2023-11-14
2023-06-30	$37,975,875	425,500	0.0%	Shares	Sole	2023-08-14
2023-03-31	$45,622,110	425,500	0.0%	Shares	Sole	2023-05-15
2022-12-31	$51,966,315	425,500	0.0%	Shares	Sole	2023-02-14
2022-09-30	$43,937,130	425,500	0.0%	Shares	Sole	2022-11-14
2022-06-30	$39,554,480	425,500	+1.9%	Shares	Sole	2022-08-15
2022-03-31	$48,997,800	417,500	+4.4%	Shares	Sole	2022-05-16
2021-12-31	$53,812,000	400,000	0.0%	Shares	Sole	2022-02-14
2021-09-30	$63,756,000	400,000	+71.3%	Shares	Sole	2021-11-15
2021-06-30	$30,716,925	233,500	0.0%	Shares	Sole	2021-08-16
2021-03-31	$30,093,480	233,500	0.0%	Shares	Sole	2021-05-17
2020-12-31	$38,943,130	233,500	0.0%	Shares	Sole	2021-02-16
2020-09-30	$36,033,720	233,500	+9.4%	Shares	Sole	2020-11-16
2020-06-30	$31,576,650	213,500	0.0%	Shares	Sole	2020-08-14
2020-03-31	$24,042,235	213,500	—	Shares	Sole	2020-05-15
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