Rock Springs Capital Management LP

Business address
650 South Exeter Street, Suite 1070, Baltimore, MD, 21202
Top holdings (ownership)
THRX, VERV, XLO, and TPST
Top securities (13F)
ARGX, LLY, RYTM, MDGL, RVMD, MRUS, MIRM, INSM, TVTX, ASND, IRTC, AGIO, RARE, ISRG, BSX, XENE, ALNY, EXAS, PEN, and AKRO
State of incorporation
DE
Fiscal year end
31 December
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Rock Springs Capital Management LP has filed 167 SEC EDGAR filings since 14 Feb 2014

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
13F-HR Open Document Open Filing 14 Nov 2025 30 Sep 2025 028-16048
SCHEDULE 13G Open Document Open Filing 12 Sep 2025
N-PX Open Document Open Filing 22 Aug 2025 30 Jun 2025 028-16048
13F-HR Open Document Open Filing 14 Aug 2025 30 Jun 2025 028-16048
SCHEDULE 13G/A Open Document Open Filing 13 Aug 2025
SCHEDULE 13G/A Open Document Open Filing 13 Aug 2025
SCHEDULE 13G/A Open Document Open Filing 15 May 2025
SCHEDULE 13G/A Open Document Open Filing 15 May 2025
SCHEDULE 13G/A Open Document Open Filing 15 May 2025
SCHEDULE 13G/A Open Document Open Filing 15 May 2025
13F-HR Open Document Open Filing 15 May 2025 31 Mar 2025 028-16048
SCHEDULE 13G/A Open Document Open Filing 14 Feb 2025
13F-HR Open Document Open Filing 14 Feb 2025 31 Dec 2024 028-16048
SC 13G Open Document Open Filing 22 Nov 2024
13F-HR Open Document Open Filing 14 Nov 2024 30 Sep 2024 028-16048
SC 13G/A Open Document Open Filing 12 Nov 2024
SC 13G/A Open Document Open Filing 12 Nov 2024
SC 13G/A Open Document Open Filing 12 Nov 2024
N-PX Open Document Open Filing 30 Aug 2024 30 Jun 2024 028-16048
13F-HR Open Document Open Filing 14 Aug 2024 30 Jun 2024 028-16048
13F-HR Open Document Open Filing 15 May 2024 31 Mar 2024 028-16048
SC 13G Open Document Open Filing 01 May 2024
SC 13G/A Open Document Open Filing 05 Apr 2024
SC 13G Open Document Open Filing 14 Feb 2024
SC 13G/A Open Document Open Filing 14 Feb 2024
SC 13G/A Open Document Open Filing 14 Feb 2024
SC 13G/A Open Document Open Filing 14 Feb 2024
SC 13G/A Open Document Open Filing 14 Feb 2024
SC 13G/A Open Document Open Filing 14 Feb 2024
SC 13G/A Open Document Open Filing 14 Feb 2024
SC 13G/A Open Document Open Filing 14 Feb 2024
SC 13G/A Open Document Open Filing 14 Feb 2024
SC 13G/A Open Document Open Filing 14 Feb 2024
SC 13G/A Open Document Open Filing 14 Feb 2024
13F-HR Open Document Open Filing 14 Feb 2024 31 Dec 2023 028-16048
13F-HR Open Document Open Filing 14 Nov 2023 30 Sep 2023 028-16048
13F-HR Open Document Open Filing 14 Aug 2023 30 Jun 2023 028-16048
13F-HR Open Document Open Filing 15 May 2023 31 Mar 2023 028-16048
SC 13G/A Open Document Open Filing 14 Feb 2023
SC 13G/A Open Document Open Filing 14 Feb 2023
SC 13G/A Open Document Open Filing 14 Feb 2023
SC 13G/A Open Document Open Filing 14 Feb 2023
SC 13G/A Open Document Open Filing 14 Feb 2023
SC 13G/A Open Document Open Filing 14 Feb 2023
SC 13G/A Open Document Open Filing 14 Feb 2023
SC 13G/A Open Document Open Filing 14 Feb 2023
SC 13G/A Open Document Open Filing 14 Feb 2023
SC 13G Open Document Open Filing 14 Feb 2023
SC 13G Open Document Open Filing 14 Feb 2023
SC 13G/A Open Document Open Filing 14 Feb 2023
13F-HR Open Document Open Filing 14 Feb 2023 31 Dec 2022 028-16048
13F-HR Open Document Open Filing 14 Nov 2022 30 Sep 2022 028-16048
13F-HR Open Document Open Filing 15 Aug 2022 30 Jun 2022 028-16048
13F-HR Open Document Open Filing 16 May 2022 31 Mar 2022 028-16048
SC 13G Open Document Open Filing 25 Apr 2022
SC 13G Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
SC 13G/A Open Document Open Filing 15 Feb 2022
13F-HR Open Document Open Filing 14 Feb 2022 31 Dec 2021 028-16048
3 Open Document Open Filing FORM 3 10 Jan 2022 30 Dec 2021 001-35890
SC 13G Open Document Open Filing 03 Jan 2022
SC 13G Open Document Open Filing 30 Dec 2021
13F-HR Open Document Open Filing 15 Nov 2021 30 Sep 2021 028-16048
4 Open Document Open Filing OWNERSHIP DOCUMENT 26 Oct 2021 26 Oct 2021 001-40925
3 Open Document Open Filing OWNERSHIP DOCUMENT 21 Oct 2021 21 Oct 2021 001-40925
4 Open Document Open Filing FORM 4 SUBMISSION 14 Oct 2021 12 Oct 2021 001-40869
3 Open Document Open Filing FORM 3 SUBMISSION 06 Oct 2021 06 Oct 2021 001-40869
13F-HR Open Document Open Filing 16 Aug 2021 30 Jun 2021 028-16048
SC 13G/A Open Document Open Filing 15 Jul 2021
SC 13G Open Document Open Filing 08 Jul 2021
SC 13G Open Document Open Filing 24 Jun 2021
4 Open Document Open Filing FORM 4 SUBMISSION 22 Jun 2021 21 Jun 2021 001-40489
3 Open Document Open Filing FORM 3 SUBMISSION 16 Jun 2021 16 Jun 2021 001-40489
SC 13G Open Document Open Filing 17 May 2021
13F-HR Open Document Open Filing 17 May 2021 31 Mar 2021 028-16048
SC 13G Open Document Open Filing 19 Apr 2021
SC 13G Open Document Open Filing 01 Mar 2021
SC 13G/A Open Document Open Filing 16 Feb 2021
SC 13G/A Open Document Open Filing 16 Feb 2021
SC 13G/A Open Document Open Filing 16 Feb 2021
SC 13G/A Open Document Open Filing 16 Feb 2021
SC 13G/A Open Document Open Filing 16 Feb 2021
SC 13G/A Open Document Open Filing 16 Feb 2021
SC 13G/A Open Document Open Filing 16 Feb 2021
13F-HR Open Document Open Filing 16 Feb 2021 31 Dec 2020 028-16048
SC 13G Open Document Open Filing 16 Nov 2020
13F-HR Open Document Open Filing 16 Nov 2020 30 Sep 2020 028-16048
4 Open Document Open Filing FORM 4 SUBMISSION 04 Nov 2020 03 Nov 2020 001-39661
3 Open Document Open Filing FORM 3 SUBMISSION 29 Oct 2020 29 Oct 2020 001-39661
SC 13G Open Document Open Filing 26 Oct 2020
SC 13G Open Document Open Filing 19 Oct 2020
SC 13G Open Document Open Filing 19 Oct 2020
SC 13G Open Document Open Filing 02 Oct 2020
13F-HR Open Document Open Filing 14 Aug 2020 30 Jun 2020 028-16048
4 Open Document Open Filing FORM 4 SUBMISSION 28 Jul 2020 28 Jul 2020 001-39397
3 Open Document Open Filing FORM 3 SUBMISSION 23 Jul 2020 23 Jul 2020 001-39397
13F-HR Open Document Open Filing 15 May 2020 31 Mar 2020 028-16048
4 Open Document Open Filing FORM 4 SUBMISSION 16 Mar 2020 16 Mar 2020 001-39247
3 Open Document Open Filing FORM 3 SUBMISSION 11 Mar 2020 11 Mar 2020 001-39247
SC 13G/A Open Document Open Filing 14 Feb 2020
SC 13G/A Open Document Open Filing 14 Feb 2020
SC 13G/A Open Document Open Filing 14 Feb 2020
SC 13G/A Open Document Open Filing 14 Feb 2020
SC 13G/A Open Document Open Filing 14 Feb 2020
13F-HR Open Document Open Filing 14 Feb 2020 31 Dec 2019 028-16048
SC 13G Open Document Open Filing SCHEDULE 13G 16 Dec 2019
13F-HR Open Document Open Filing 14 Nov 2019 30 Sep 2019 028-16048
SC 13G Open Document Open Filing SCHEDULE 13G HOLDINGS REPORT 11 Oct 2019
SC 13G Open Document Open Filing SCHEDULE 13G HOLDINGS REPORT 07 Oct 2019
SC 13G Open Document Open Filing 27 Sep 2019
13F-HR Open Document Open Filing 14 Aug 2019 30 Jun 2019 028-16048
SC 13G Open Document Open Filing 29 Jul 2019
13F-HR Open Document Open Filing 15 May 2019 31 Mar 2019 028-16048
SC 13G Open Document Open Filing SCHEDULE 13G HOLDINGS REPORT 22 Apr 2019
13F-HR Open Document Open Filing 14 Feb 2019 31 Dec 2018 028-16048
SC 13G/A Open Document Open Filing SCHEDULE 13G HOLDINGS REPORT AMENDMENT 14 Feb 2019
SC 13G/A Open Document Open Filing SCHEDULE 13G HOLDINGS REPORT AMENDMENT 14 Feb 2019
SC 13G/A Open Document Open Filing SCHEDULE 13G HOLDINGS REPORT AMENDMENT 14 Feb 2019
13F-HR Open Document Open Filing 14 Nov 2018 30 Sep 2018 028-16048
13F-HR Open Document Open Filing 14 Aug 2018 30 Jun 2018 028-16048
13F-HR Open Document Open Filing 15 May 2018 31 Mar 2018 028-16048
4 Open Document Open Filing FORM 4 SUBMISSION 04 Apr 2018 02 Apr 2018 001-38433
3 Open Document Open Filing FORM 3 SUBMISSION 27 Mar 2018 27 Mar 2018 001-38433
SC 13G/A Open Document Open Filing 13G/A 14 Feb 2018
SC 13G/A Open Document Open Filing 13G/A 14 Feb 2018
SC 13G/A Open Document Open Filing 13G/A 14 Feb 2018
13F-HR Open Document Open Filing 14 Feb 2018 31 Dec 2017 028-16048
13F-HR Open Document Open Filing 14 Nov 2017 30 Sep 2017 028-16048
SC 13G Open Document Open Filing 13G 02 Nov 2017
13F-HR Open Document Open Filing 14 Aug 2017 30 Jun 2017 028-16048
SC 13G Open Document Open Filing 13G 07 Jul 2017
13F-HR Open Document Open Filing 15 May 2017 31 Mar 2017 028-16048
13F-HR Open Document Open Filing 14 Feb 2017 31 Dec 2016 028-16048
SC 13G/A Open Document Open Filing 13G/A 14 Feb 2017
SC 13G/A Open Document Open Filing 13G/A 14 Feb 2017
SC 13G/A Open Document Open Filing 13G/A 14 Feb 2017
13F-HR Open Document Open Filing 14 Nov 2016 30 Sep 2016 028-16048
13F-HR Open Document Open Filing 15 Aug 2016 30 Jun 2016 028-16048
SC 13G Open Document Open Filing SCHEDULE 13G 10 Jun 2016
13F-HR Open Document Open Filing 16 May 2016 31 Mar 2016 028-16048
SC 13G Open Document Open Filing SCHEDULE 13G 16 May 2016
13F-HR Open Document Open Filing 16 Feb 2016 31 Dec 2015 028-16048
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 16 Feb 2016
13F-HR Open Document Open Filing 16 Nov 2015 30 Sep 2015 028-16048
13F-HR Open Document Open Filing 14 Aug 2015 30 Jun 2015 028-16048
SC 13G Open Document Open Filing SCHEDULE 13G HOLDINGS REPORT 04 Aug 2015
4 Open Document Open Filing FORM 4 SUBMISSION 24 Jun 2015 22 Jun 2015 001-37449
3 Open Document Open Filing FORM 3 SUBMISSION 17 Jun 2015 16 Jun 2015 001-37449
13F-HR Open Document Open Filing 15 May 2015 31 Mar 2015 028-16048
SC 13G Open Document Open Filing BIODEL 13G 23 Apr 2015
13F-HR Open Document Open Filing 17 Feb 2015 31 Dec 2014 028-16048
13F-HR Open Document Open Filing 14 Nov 2014 30 Sep 2014 028-16048
13F-HR Open Document Open Filing 14 Aug 2014 30 Jun 2014 028-16048
13F-HR Open Document Open Filing 15 May 2014 31 Mar 2014 028-16048
4 Open Document Open Filing FORM 4 SUBMISSION 15 Apr 2014 15 Apr 2014 001-36395
3 Open Document Open Filing FORM 3 SUBMISSION 10 Apr 2014 10 Apr 2014 001-36395
13F-HR Open Document Open Filing 14 Feb 2014 31 Dec 2013 028-16048