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View AllLatest Rock Springs Capital Management LP Stock Portfolio
$4.06Billion
Equity Portfolio Value
Last Reported on: 14 Feb, 2024
About Rock Springs Capital Management LP and it’s 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 $3.7 Billions as of 30 Sep, 2023.
The top stock holdings of Rock Springs Capital Management LP are HUM, , AGL. The fund has invested 5.7% of it's portfolio in HUMANA INC and 4.1% of portfolio in IMMUNOCORE HLDGS PLC.
The fund managers got completely rid off CONMED CORP (CNMD), CHINOOK THERAPEUTICS INC and GUARDANT HEALTH INC (GH) stocks. They significantly reduced their stock positions in GAMIDA CELL LTD, SPERO THERAPEUTICS INC (SPRO) and BIOMEA FUSION INC (BMEA). Rock Springs Capital Management LP opened new stock positions in IMMUNOVANT INC (IMVT), AMGEN INC (AMGN) and ACUMEN PHARMACEUTICALS INC (ABOS). The fund showed a lot of confidence in some stocks as they added substantially to IMMUNOGEN INC (IMGN), BOSTON SCIENTIFIC CORP (BSX) and GOSSAMER BIO INC (GOSS).
The top stock holdings of Rock Springs Capital Management LP are HUM, , AGL. The fund has invested 5.7% of it's portfolio in HUMANA INC and 4.1% of portfolio in IMMUNOCORE HLDGS PLC.
The fund managers got completely rid off CONMED CORP (CNMD), CHINOOK THERAPEUTICS INC and GUARDANT HEALTH INC (GH) stocks. They significantly reduced their stock positions in GAMIDA CELL LTD, SPERO THERAPEUTICS INC (SPRO) and BIOMEA FUSION INC (BMEA). Rock Springs Capital Management LP opened new stock positions in IMMUNOVANT INC (IMVT), AMGEN INC (AMGN) and ACUMEN PHARMACEUTICALS INC (ABOS). The fund showed a lot of confidence in some stocks as they added substantially to IMMUNOGEN INC (IMGN), BOSTON SCIENTIFIC CORP (BSX) and GOSSAMER BIO INC (GOSS).
New Buys
| Ticker | $ Bought |
|---|---|
| ELI LILLY & CO | 40,512,900 |
| STRUCTURE THERAPEUTICS INC | 11,684,900 |
| OSCAR HEALTH INC | 6,725,250 |
New stocks bought by Rock Springs Capital Management LP
Additions
| Ticker | % Inc. |
|---|---|
| INSPIRE MED SYS INC | 122 |
| CELLDEX THERAPEUTICS INC NEW | 93.89 |
| TRAVERE THERAPEUTICS INC | 53.31 |
| IMMUNOVANT INC | 52.6 |
| WARBY PARKER INC | 28.78 |
| BIOCRYST PHARMACEUTICALS INC | 28.19 |
| PHREESIA INC | 24.22 |
| LIFESTANCE HEALTH GROUP INC | 23.57 |
Additions to existing portfolio by Rock Springs Capital Management LP
Reductions
| Ticker | % Reduced |
|---|---|
| AMYLYX PHARMACEUTICALS INC | -65.37 |
| BIOMARIN PHARMACEUTICAL INC | -43.73 |
| RENEO PHARMACEUTICALS INC | -34.24 |
| WEST PHARMACEUTICAL SVSC INC | -32.05 |
| ASCENDIS PHARMA A/S | -31.84 |
| HUMANA INC | -28.98 |
| MIRATI THERAPEUTICS INC | -26.12 |
| ACLARIS THERAPEUTICS INC | -24.29 |
Rock Springs Capital Management LP reduced stake in above stock
Sold off
| Ticker | $ Sold |
|---|---|
| ABCAM PLC | -28,853,200 |
| AURA BIOSCIENCES INC | -6,484,380 |
| FATE THERAPEUTICS INC | -1,297,900 |
| INVITAE CORP | -354,441 |
| TEMPEST THERAPEUTICS INC | -163,384 |
| DESIGN THERAPEUTICS INC | -1,086,520 |
| THESEUS PHARMACEUTICALS INC | -1,176,420 |
| KINNATE BIOPHARMA INC | -568,135 |
Rock Springs Capital Management LP got rid off the above stocks
Current Stock Holdings of Rock Springs Capital Management LP
Last Reported on: 14 Feb, 2024| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options |
|---|---|---|---|---|---|---|---|
| ABCM | ABCAM PLC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| ABOS | ACUMEN PHARMACEUTICALS INC | 0.22 | 2,300,060 | 8,832,230 | REDUCED | -18.22 | |
| ACCD | ACCOLADE INC | 1.03 | 3,485,000 | 41,854,800 | ADDED | 19.64 | |
| ACHC | ACADIA HEALTHCARE COMPANY IN | 2.06 | 1,073,500 | 83,475,400 | ADDED | 18.23 | |
| ACRS | ACLARIS THERAPEUTICS INC | 0.08 | 2,998,500 | 3,148,420 | REDUCED | -24.29 | |
| ACRX | ACELRX PHARMACEUTICALS INC | 0.01 | 316,460 | 232,598 | UNCHANGED | 0.00 | |
| ADAP | ADAPTIMMUNE THERAPEUTICS PLC | 0.05 | 2,425,470 | 1,923,400 | REDUCED | -13.00 | |
| AGIO | AGIOS PHARMACEUTICALS INC | 1.18 | 2,152,170 | 47,928,900 | REDUCED | -20.59 | |
| AGL | AGILON HEALTH INC | 2.67 | 8,630,000 | 108,306,000 | ADDED | 4.07 | |
| AGLE | AEGLEA BIOTHERAPEUTICS INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| AKRO | AKERO THERAPEUTICS INC | 0.62 | 1,081,060 | 25,242,800 | REDUCED | -23.82 | |
| ALGN | ALIGN TECHNOLOGY INC | 1.48 | 220,000 | 60,280,000 | ADDED | 1.38 | |
| ALNY | ALNYLAM PHARMACEUTICALS INC | 1.11 | 235,000 | 44,981,400 | REDUCED | -15.92 | |
| AMGN | AMGEN INC | 0.53 | 74,500 | 21,457,500 | ADDED | 9.56 | |
| AMLX | AMYLYX PHARMACEUTICALS INC | 0.19 | 535,012 | 7,875,380 | REDUCED | -65.37 | |
| APLT | APPLIED THERAPEUTICS INC | 0.07 | 895,195 | 2,998,900 | ADDED | 10.68 | |
| ARGX | ARGENX SE | 2.15 | 229,250 | 87,213,600 | REDUCED | -11.49 | |
| ASND | ASCENDIS PHARMA A/S | 0.90 | 290,000 | 36,525,500 | REDUCED | -31.84 | |
| AUPH | AURINIA PHARMACEUTICALS INC | 0.09 | 412,570 | 3,709,000 | REDUCED | -13.97 | |
| AURA | AURA BIOSCIENCES INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| AZTA | AZENTA INC | 0.81 | 507,500 | 33,058,600 | ADDED | 6.28 | |
| BCEL | ATRECA INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| BCRX | BIOCRYST PHARMACEUTICALS INC | 0.48 | 3,270,380 | 19,589,600 | ADDED | 28.19 | |
| BEAM | BEAM THERAPEUTICS INC | 0.07 | 111,430 | 3,033,120 | UNCHANGED | 0.00 | |
| BMEA | BIOMEA FUSION INC | 0.06 | 181,147 | 2,630,250 | UNCHANGED | 0.00 | |
| BMRN | BIOMARIN PHARMACEUTICAL INC | 0.35 | 148,832 | 14,350,400 | REDUCED | -43.73 | |
| BPMC | BLUEPRINT MEDICINES CORP | 6.54 | 2,881,570 | 265,796,000 | ADDED | 7.31 | |
| BSX | BOSTON SCIENTIFIC CORP | 1.75 | 1,232,500 | 71,250,800 | ADDED | 6.25 | |
| CERE | CEREVEL THERAPEUTICS HLDNG I | 2.79 | 2,674,240 | 113,388,000 | ADDED | 5.74 | |
| CGEN | COMPUGEN LTD | 0.06 | 1,289,990 | 2,554,180 | UNCHANGED | 0.00 | |
| CLDX | CELLDEX THERAPEUTICS INC NEW | 0.95 | 969,646 | 38,456,200 | ADDED | 93.89 | |
| CMPX | COMPASS THERAPEUTICS INC | 0.21 | 5,513,790 | 8,601,510 | UNCHANGED | 0.00 | |
| COLL | COLLEGIUM PHARMACEUTICAL INC | 0.43 | 562,000 | 17,298,400 | UNCHANGED | 0.00 | |
| CYTK | CYTOKINETICS INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| DSGN | DESIGN THERAPEUTICS INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| DVAX | DYNAVAX TECHNOLOGIES CORP | 0.58 | 1,675,470 | 23,423,100 | REDUCED | -7.62 | |
| DXCM | DEXCOM INC | 1.82 | 596,000 | 73,957,600 | ADDED | 2.05 | |
| EDAP | EDAP TMS S A | 0.18 | 1,386,420 | 7,320,320 | ADDED | 1.94 | |
| EPIX | ESSA PHARMA INC | 0.11 | 677,005 | 4,468,230 | UNCHANGED | 0.00 | |
| EVH | EVOLENT HEALTH INC | 3.22 | 3,960,000 | 130,799,000 | ADDED | 2.46 | |
| EW | EDWARDS LIFESCIENCES CORP | 1.22 | 647,300 | 49,356,600 | UNCHANGED | 0.00 | |
| EXAS | EXACT SCIENCES CORP | 1.86 | 1,019,500 | 75,422,600 | ADDED | 0.12 | |
| FATE | FATE THERAPEUTICS INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| FOLD | AMICUS THERAPEUTICS INC | 0.37 | 1,063,810 | 15,095,400 | UNCHANGED | 0.00 | |
| FRPT | FRESHPET INC | 1.42 | 662,500 | 57,478,500 | UNCHANGED | 0.00 | |
| FULC | FULCRUM THERAPEUTICS INC | 0.12 | 727,673 | 4,911,790 | UNCHANGED | 0.00 | |
| GMDA | GAMIDA CELL LTD | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| GOSS | GOSSAMER BIO INC | 0.09 | 9,573,000 | 3,488,300 | UNCHANGED | 0.00 | |
| GOSS | GOSSAMER BIO INC | 0.07 | 3,266,960 | 2,981,100 | UNCHANGED | 0.00 | |
| HCAT | HEALTH CATALYST INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| HUM | HUMANA INC | 3.49 | 310,000 | 141,921,000 | REDUCED | -28.98 | |
| HZNP | HORIZON THERAPEUTICS PUB L | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| ICVX | ICOSAVAX INC | 0.34 | 868,409 | 13,686,100 | UNCHANGED | 0.00 | |
| IDXX | IDEXX LABS INC | 2.45 | 179,250 | 99,492,700 | REDUCED | -7.84 | |
| IMCR | IMMUNOCORE HLDGS PLC | 4.48 | 2,661,510 | 181,834,000 | REDUCED | -9.59 | |
| IMGN | IMMUNOGEN INC | 0.55 | 759,365 | 22,515,200 | UNCHANGED | 0.00 | |
| IMTX | IMMATICS N.V | 0.49 | 1,875,470 | 19,748,700 | UNCHANGED | 0.00 | |
| IMVT | IMMUNOVANT INC | 1.02 | 983,301 | 41,426,500 | ADDED | 52.6 | |
| INSP | INSPIRE MED SYS INC | 0.50 | 99,000 | 20,139,600 | ADDED | 122 | |
| INZY | INOZYME PHARMA INC | 0.39 | 3,681,170 | 15,681,800 | UNCHANGED | 0.00 | |
| IRTC | IRHYTHM TECHNOLOGIES INC | 0.92 | 350,750 | 37,544,300 | UNCHANGED | 0.00 | |
| ISRG | INTUITIVE SURGICAL INC | 2.48 | 298,500 | 100,702,000 | UNCHANGED | 0.00 | |
| KNTE | KINNATE BIOPHARMA INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| KRTX | KARUNA THERAPEUTICS INC | 4.01 | 515,024 | 163,010,000 | ADDED | 1.9 | |
| KRYS | KRYSTAL BIOTECH INC | 0.32 | 103,969 | 12,898,400 | ADDED | 14.81 | |
| KYMR | KYMERA THERAPEUTICS INC | 0.95 | 1,522,240 | 38,756,200 | ADDED | 1.19 | |
| LEGN | LEGEND BIOTECH CORP | 0.73 | 492,444 | 29,630,400 | ADDED | 7.46 | |
| LFST | LIFESTANCE HEALTH GROUP INC | 0.87 | 4,535,000 | 35,509,000 | ADDED | 23.57 | |
| LLY | ELI LILLY & CO | 1.00 | 69,500 | 40,512,900 | NEW | ||
| LPTX | LEAP THERAPEUTICS INC | 0.09 | 832,937 | 3,452,520 | REDUCED | -22.48 | |
| LUNG | PULMONX CORP | 0.20 | 652,400 | 8,318,100 | UNCHANGED | 0.00 | |
| MDGL | MADRIGAL PHARMACEUTICALS INC | 1.13 | 198,169 | 45,852,300 | ADDED | 0.92 | |
| MGNX | MACROGENICS INC | 0.28 | 1,178,800 | 11,340,000 | UNCHANGED | 0.00 | |
| MIRM | MIRUM PHARMACEUTICALS INC | 1.34 | 1,851,460 | 54,655,200 | ADDED | 1.69 | |
| MREO | MEREO BIOPHARMA GROUP PLC | 0.45 | 7,983,850 | 18,442,700 | ADDED | 4.00 | |
| MRSN | MERSANA THERAPEUTICS INC | 0.17 | 3,046,780 | 7,068,530 | REDUCED | -10.47 | |
| MRTX | MIRATI THERAPEUTICS INC | 1.21 | 835,776 | 49,101,800 | REDUCED | -26.12 | |
| MRUS | MERUS N V | 0.59 | 872,069 | 23,981,900 | ADDED | 4.01 | |
| NBIX | NEUROCRINE BIOSCIENCES INC | 3.88 | 1,196,000 | 157,585,000 | REDUCED | -3.24 | |
| NBIX | NEUROCRINE BIOSCIENCES INC | 0.04 | 1,000,000 | 1,753,490 | UNCHANGED | 0.00 | |
| NKTX | NKARTA INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| NUVB | NUVATION BIO INC | 0.00 | 134,028 | 8,042 | UNCHANGED | 0.00 | |
| NVAX | NOVAVAX INC | 0.06 | 537,625 | 2,580,600 | REDUCED | -16.99 | |
| NVRO | NEVRO CORP | 0.54 | 1,025,000 | 22,058,000 | REDUCED | -15.4 | |
| NVRO | NEVRO CORP | 0.01 | 500,000 | 481,796 | UNCHANGED | 0.00 | |
| NVTA | INVITAE CORP | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| OLK | OLINK HLDG AB | 1.04 | 1,676,500 | 42,164,000 | UNCHANGED | 0.00 | |
| OSCR | OSCAR HEALTH INC | 0.17 | 735,000 | 6,725,250 | NEW | ||
| PCRX | PACIRA BIOSCIENCES INC | 0.88 | 1,055,500 | 35,612,600 | UNCHANGED | 0.00 | |
| PEN | PENUMBRA INC | 3.33 | 537,500 | 135,203,000 | ADDED | 6.7 | |
| PHR | PHREESIA INC | 1.26 | 2,206,700 | 51,085,100 | ADDED | 24.22 | |
| PLRX | PLIANT THERAPEUTICS INC | 0.17 | 384,996 | 6,972,280 | REDUCED | -21.62 | |
| PODD | INSULET CORP | 2.31 | 431,750 | 93,681,100 | ADDED | 13.62 | |
| PRTA | PROTHENA CORP PLC | 0.56 | 625,048 | 22,714,200 | ADDED | 1.75 | |
| RARE | ULTRAGENYX PHARMACEUTICAL IN | 2.06 | 1,754,040 | 83,878,100 | ADDED | 18.8 | |
| RLAY | RELAY THERAPEUTICS INC | 0.18 | 673,966 | 7,420,370 | UNCHANGED | 0.00 | |
| RPHM | RENEO PHARMACEUTICALS INC | 0.03 | 751,730 | 1,202,770 | REDUCED | -34.24 | |
| RVMD | REVOLUTION MEDICINES INC | 0.51 | 725,152 | 20,797,400 | UNCHANGED | 0.00 | |
| RYTM | RHYTHM PHARMACEUTICALS INC | 1.72 | 1,522,890 | 70,007,400 | REDUCED | -4.65 | |
| SGEN | SEAGEN INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| SPRB | SPRUCE BIOSCIENCES INC | 0.19 | 2,609,120 | 7,644,740 | REDUCED | -4.36 | |
| SPRO | SPERO THERAPEUTICS INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| SRPT | SAREPTA THERAPEUTICS INC | 0.78 | 327,600 | 31,590,500 | REDUCED | -16.43 | |
| SWAV | SHOCKWAVE MED INC | 0.56 | 120,000 | 22,867,200 | REDUCED | -18.64 | |
| THRX | THESEUS PHARMACEUTICALS INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| TPST | TEMPEST THERAPEUTICS INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| TVTX | TRAVERE THERAPEUTICS INC | 0.61 | 2,771,450 | 24,915,300 | ADDED | 53.31 | |
| UNH | UNITEDHEALTH GROUP INC | 2.98 | 230,000 | 121,088,000 | UNCHANGED | 0.00 | |
| VIGL | VIGIL NEUROSCIENCE INC | 0.04 | 471,958 | 1,595,220 | UNCHANGED | 0.00 | |
| VINC | VINCERX PHARMA INC | 0.03 | 891,719 | 1,052,230 | UNCHANGED | 0.00 | |
| WRBY | WARBY PARKER INC | 0.70 | 2,028,300 | 28,599,000 | ADDED | 28.78 | |
| WST | WEST PHARMACEUTICAL SVSC INC | 1.19 | 137,250 | 48,328,500 | REDUCED | -32.05 | |
| XENE | XENON PHARMACEUTICALS INC | 1.42 | 1,255,580 | 57,831,900 | ADDED | 6.59 | |
| XLB | SELECT SECTOR SPDR TR | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | |
| XLO | XILIO THERAPEUTICS INC | 0.02 | 1,440,760 | 792,417 | UNCHANGED | 0.00 | |
| ZLAB | ZAI LAB LTD | 0.76 | 1,137,020 | 31,074,800 | REDUCED | -8.08 | |
| DISC MEDICINE INC | 0.52 | 363,468 | 20,993,900 | UNCHANGED | 0.00 | ||
| STRUCTURE THERAPEUTICS INC | 0.29 | 286,676 | 11,684,900 | NEW | |||
| MINERALYS THERAPEUTICS INC | 0.25 | 1,167,490 | 10,040,400 | UNCHANGED | 0.00 | ||
| SAGIMET BIOSCIENCES INC | 0.10 | 738,355 | 4,001,880 | UNCHANGED | 0.00 | ||
| TRAVERE THERAPEUTICS INC | 0.07 | 3,250,000 | 2,767,860 | UNCHANGED | 0.00 | ||
| CERVOMED INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 | ||
| ACELYRIN INC | 0.00 | 0.00 | 0.00 | SOLD OFF | -100 |