Latest Rock Springs Capital Management LP Stock Portfolio
Rock Springs Capital Management LP Performance:
2024 Q4: -3.99%YTD: -2.82%2023: 0.59%
Performance for 2024 Q4 is -3.99%, and YTD is -2.82%, and 2023 is 0.59%.
About Rock Springs Capital Management LP and 13F Hedge Fund Stock Holdings
Rock Springs Capital Management LP is a hedge fund based in BALTIMORE, MD. On 31-Mar-2023, the fund reported that it had an AUM (Regulated Assets under Management) of $5.7 Billions. In it's latest 13F Holdings report, Rock Springs Capital Management LP reported an equity portfolio of $2.6 Billions as of 31 Dec, 2024.
The top stock holdings of Rock Springs Capital Management LP are , ISRG, LLY. The fund has invested 5.4% of it's portfolio in ARGENX SE and 4.3% of portfolio in INTUITIVE SURGICAL INC.
The fund managers got completely rid off HUMANA INC (HUM), ALIGN TECHNOLOGY INC (ALGN) and NOVO-NORDISK A S stocks. They significantly reduced their stock positions in EXACT SCIENCES CORP (EXAS), UNITEDHEALTH GROUP INC (UNH) and WARBY PARKER INC (WRBY). Rock Springs Capital Management LP opened new stock positions in SCHOLAR ROCK HLDG CORP (SRRK), TENET HEALTHCARE CORP (THC) and JANUX THERAPEUTICS INC (JANX). The fund showed a lot of confidence in some stocks as they added substantially to ACLARIS THERAPEUTICS INC (ACRS), NEWAMSTERDAM PHARMA COMPANY (NAMS) and AMICUS THERAPEUTICS INC (FOLD).
The top stock holdings of Rock Springs Capital Management LP are , ISRG, LLY. The fund has invested 5.4% of it's portfolio in ARGENX SE and 4.3% of portfolio in INTUITIVE SURGICAL INC.
The fund managers got completely rid off HUMANA INC (HUM), ALIGN TECHNOLOGY INC (ALGN) and NOVO-NORDISK A S stocks. They significantly reduced their stock positions in EXACT SCIENCES CORP (EXAS), UNITEDHEALTH GROUP INC (UNH) and WARBY PARKER INC (WRBY). Rock Springs Capital Management LP opened new stock positions in SCHOLAR ROCK HLDG CORP (SRRK), TENET HEALTHCARE CORP (THC) and JANUX THERAPEUTICS INC (JANX). The fund showed a lot of confidence in some stocks as they added substantially to ACLARIS THERAPEUTICS INC (ACRS), NEWAMSTERDAM PHARMA COMPANY (NAMS) and AMICUS THERAPEUTICS INC (FOLD).
Rock Springs Capital Management LP Annual Return Estimates Vs S&P 500
Our best estimate is that Rock Springs Capital Management LP made a return of -3.99% in the last quarter. In trailing 12 months, it's portfolio return was -2.82%.
New Buys
| Ticker | $ Bought |
|---|---|
| scholar rock hldg corp | 30,979,300 |
| tenet healthcare corp | 16,308,900 |
| janux therapeutics inc | 10,947,100 |
| ardelyx inc | 7,420,600 |
| tarsus pharmaceuticals inc | 6,139,920 |
| soleno therapeutics inc | 5,578,070 |
| 89bio inc | 4,322,440 |
| neurogene inc | 2,181,000 |
New stocks bought by Rock Springs Capital Management LP
Additions
| Ticker | % Inc. |
|---|---|
| aclaris therapeutics inc | 125 |
| newamsterdam pharma company | 117 |
| amicus therapeutics inc | 107 |
| springworks therapeutics inc | 64.57 |
| blueprint medicines corp | 42.68 |
| vera therapeutics inc | 27.22 |
| revolution medicines inc | 20.13 |
| nevro corp | 19.3 |
Additions to existing portfolio by Rock Springs Capital Management LP
Reductions
| Ticker | % Reduced |
|---|---|
| exact sciences corp | -60.78 |
| unitedhealth group inc | -40.19 |
| warby parker inc | -36.07 |
| agios pharmaceuticals inc | -32.64 |
| dexcom inc | -32.63 |
| acadia healthcare company in | -28.4 |
| freshpet inc | -26.65 |
| biocryst pharmaceuticals inc | -26.07 |
Rock Springs Capital Management LP reduced stake in above stock
Sold off
| Ticker | $ Sold |
|---|---|
| aurinia pharmaceuticals inc | -8,647,490 |
| essa pharma inc | -4,102,650 |
| dynavax technologies corp | -6,739,840 |
| pacira biosciences inc | -6,020,000 |
| cytokinetics inc | -10,882,500 |
| accolade inc | -616,835 |
| biomarin pharmaceutical inc | -10,613,800 |
| humana inc | -46,877,500 |
Rock Springs Capital Management LP got rid off the above stocks
Sector Distribution
Rock Springs Capital Management LP has about 86.8% of it's holdings in Healthcare sector.
| Sector | % |
|---|---|
| Healthcare | 86.8 |
| Others | 11.4 |
| Consumer Defensive | 1.9 |
Market Cap. Distribution
Rock Springs Capital Management LP has about 31.2% of it's portfolio invested in the large-cap and mega-cap stocks.
| Category | % |
|---|---|
| MID-CAP | 37.6 |
| LARGE-CAP | 23.5 |
| SMALL-CAP | 15.3 |
| UNALLOCATED | 13.5 |
| MEGA-CAP | 7.7 |
| MICRO-CAP | 2.3 |
Stocks belong to which Index?
About 61.4% of the stocks held by Rock Springs Capital Management LP either belong to S&P 500 or RUSSELL 2000 index.
| Index | % |
|---|---|
| RUSSELL 2000 | 42 |
| Others | 38.6 |
| S&P 500 | 19.4 |
Rock Springs Capital Management LP Holdings Map
This heatmap illustrates the top 50 positions within the fund's portfolio.
Current Stock Holdings of Rock Springs Capital Management LP
Rock Springs Capital Management LP has 105 stocks in it's portfolio. About 36.4% of the portfolio is in top 10 stocks. EVH proved to be the most loss making stock for the portfolio. MDGL was the most profitable stock for Rock Springs Capital Management LP last quarter.
Last Reported on: 14 Feb, 2025| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options | |
|---|---|---|---|---|---|---|---|---|
| ABOS | acumen pharmaceuticals inc | 0.12 | 1,838,920 | 3,162,940 | reduced | -20.05 | ||
| ACCD | accolade inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ACHC | acadia healthcare company in | 0.88 | 583,500 | 23,135,800 | reduced | -28.4 | ||
| ACRS | aclaris therapeutics inc | 0.59 | 6,204,310 | 15,386,700 | added | 125 | ||
| ACRX | talphera inc | 0.01 | 316,460 | 165,857 | unchanged | 0.00 | ||
| ADAP | adaptimmune therapeutics plc | 0.05 | 2,483,470 | 1,337,840 | added | 2.39 | ||
| AGIO | agios pharmaceuticals inc | 0.59 | 471,086 | 15,479,900 | reduced | -32.64 | ||
| AGL | agilon health inc | 0.54 | 7,463,300 | 14,180,300 | reduced | -17.96 | ||
| AKRO | akero therapeutics inc | 1.00 | 946,499 | 26,331,600 | added | 1.4 | ||
| ALGN | align technology inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ALLK | allakos inc | 0.05 | 1,100,410 | 1,331,500 | reduced | -8.33 | ||
| ALNY | alnylam pharmaceuticals inc | 2.30 | 256,200 | 60,286,400 | added | 2.48 | ||
| APLS | apellis pharmaceuticals inc | 0.10 | 80,000 | 2,552,800 | unchanged | 0.00 | ||
| APLT | applied therapeutics inc | 0.06 | 1,917,190 | 1,641,500 | added | 9.78 | ||
| ARDX | ardelyx inc | 0.28 | 1,463,630 | 7,420,600 | new | |||
| ATEC | alphatec hldgs inc | 0.07 | 200,000 | 1,836,000 | new | |||
| AUPH | aurinia pharmaceuticals inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| AUTL | autolus therapeutics plc | 0.09 | 1,032,990 | 2,427,520 | unchanged | 0.00 | ||
| AZTA | azenta inc | 0.90 | 475,000 | 23,750,000 | reduced | -10.8 | ||
| BCRX | biocryst pharmaceuticals inc | 0.77 | 2,678,000 | 20,138,500 | reduced | -26.07 | ||