$3.73 Billion is the total value of Rock Springs Capital Management LP's 120 reported holdings in Q3 2023. The portfolio turnover from Q2 2023 to Q3 2023 was 13.8% .
| Value | Shares | ↓ Weighting | ||||||
|---|---|---|---|---|---|---|---|---|
| HUM | Sell | HUMANA INC | $212,365,980 | +1.1% | 436,500 | -7.1% | 5.69% | +13.8% |
| IMCR | Sell | IMMUNOCORE HLDGS PLCads | $152,778,549 | -15.9% | 2,943,710 | -2.8% | 4.09% | -5.3% |
| AGL | Buy | AGILON HEALTH INC | $147,274,800 | +2.5% | 8,292,500 | +0.1% | 3.94% | +15.5% |
| NBIX | Sell | NEUROCRINE BIOSCIENCES INC | $139,050,000 | +15.2% | 1,236,000 | -3.4% | 3.72% | +29.7% |
| BPMC | Buy | BLUEPRINT MEDICINES CORP | $134,855,465 | -2.4% | 2,685,294 | +22.8% | 3.61% | +9.9% |
| ARGX | Sell | ARGENX SEsponsored adr | $127,332,170 | -6.7% | 259,000 | -26.0% | 3.41% | +5.1% |
| PEN | Buy | PENUMBRA INC | $121,862,163 | -3.2% | 503,750 | +37.6% | 3.26% | +8.9% |
| UNH | UNITEDHEALTH GROUP INC | $115,963,700 | +4.9% | 230,000 | 0.0% | 3.11% | +18.1% | |
| EVH | Buy | EVOLENT HEALTH INCcl a | $105,243,950 | -8.7% | 3,865,000 | +1.6% | 2.82% | +2.8% |
| ISRG | INTUITIVE SURGICAL INC | $87,248,565 | -14.5% | 298,500 | 0.0% | 2.34% | -3.7% | |
| KRTX | Buy | KARUNA THERAPEUTICS INC | $85,463,666 | -20.1% | 505,433 | +2.4% | 2.29% | -10.1% |
| IDXX | IDEXX LABS INC | $85,049,015 | -12.9% | 194,500 | 0.0% | 2.28% | -2.0% | |
| SGEN | SEAGEN INC | $84,902,430 | +10.2% | 400,200 | 0.0% | 2.27% | +24.1% | |
| WST | WEST PHARMACEUTICAL SVSC INC | $75,792,420 | -1.9% | 202,000 | 0.0% | 2.03% | +10.4% | |
| AKRO | Sell | AKERO THERAPEUTICS INC | $71,780,607 | -0.9% | 1,419,150 | -8.5% | 1.92% | +11.6% |
| EXAS | Buy | EXACT SCIENCES CORP | $69,465,015 | -21.6% | 1,018,250 | +7.9% | 1.86% | -11.7% |
| AGIO | Buy | AGIOS PHARMACEUTICALS INC | $67,074,010 | -11.8% | 2,710,061 | +0.9% | 1.80% | -0.7% |
| ALGN | ALIGN TECHNOLOGY INC | $66,254,440 | -13.7% | 217,000 | 0.0% | 1.78% | -2.8% | |
| ACHC | ACADIA HEALTHCARE COMPANY IN | $63,841,480 | -11.7% | 908,000 | 0.0% | 1.71% | -0.6% | |
| BSX | Buy | BOSTON SCIENTIFIC CORP | $61,248,000 | +323.3% | 1,160,000 | +333.6% | 1.64% | +377.0% |
| PODD | Sell | INSULET CORP | $60,606,200 | -62.4% | 380,000 | -32.0% | 1.62% | -57.7% |
| MIRM | MIRUM PHARMACEUTICALS INC | $57,535,163 | +22.1% | 1,820,733 | 0.0% | 1.54% | +37.5% | |
| CERE | Buy | CEREVEL THERAPEUTICS HLDNG I | $55,210,602 | -30.9% | 2,529,116 | +0.6% | 1.48% | -22.2% |
| DXCM | Buy | DEXCOM INC | $54,487,200 | -13.6% | 584,000 | +19.1% | 1.46% | -2.7% |
| RARE | Buy | ULTRAGENYX PHARMACEUTICAL IN | $52,635,122 | -17.6% | 1,476,441 | +6.7% | 1.41% | -7.2% |
| ALNY | Sell | ALNYLAM PHARMACEUTICALS INC | $49,499,450 | -24.5% | 279,500 | -19.0% | 1.33% | -14.9% |
| MRTX | Buy | MIRATI THERAPEUTICS INC | $49,275,377 | +21.6% | 1,131,207 | +0.9% | 1.32% | +36.9% |
| SRPT | Sell | SAREPTA THERAPEUTICS INC | $47,518,240 | -2.4% | 392,000 | -7.8% | 1.27% | +9.9% |
| EW | Buy | EDWARDS LIFESCIENCES CORP | $44,844,944 | -26.4% | 647,300 | +0.2% | 1.20% | -17.2% |
| FRPT | FRESHPET INC | $43,645,500 | +0.1% | 662,500 | 0.0% | 1.17% | +12.7% | |
| XENE | XENON PHARMACEUTICALS INC | $40,240,548 | -11.3% | 1,178,002 | 0.0% | 1.08% | -0.1% | |
| ASND | ASCENDIS PHARMA A/Ssponsored adr | $39,843,820 | +4.9% | 425,500 | 0.0% | 1.07% | +18.2% | |
| RYTM | RHYTHM PHARMACEUTICALS INC | $36,614,045 | +39.0% | 1,597,123 | 0.0% | 0.98% | +56.5% | |
| PHR | Buy | PHREESIA INC | $33,182,984 | -18.0% | 1,776,391 | +36.1% | 0.89% | -7.7% |
| IRTC | Buy | IRHYTHM TECHNOLOGIES INC | $33,061,695 | +2.4% | 350,750 | +13.3% | 0.89% | +15.4% |
| PCRX | Buy | PACIRA BIOSCIENCES INC | $32,382,740 | -21.9% | 1,055,500 | +2.0% | 0.87% | -12.2% |
| ACCD | Buy | ACCOLADE INC | $30,819,540 | -18.9% | 2,913,000 | +3.3% | 0.83% | -8.6% |
| LEGN | LEGEND BIOTECH CORPsponsored ads | $30,781,660 | -2.7% | 458,265 | 0.0% | 0.82% | +9.6% | |
| ZLAB | Buy | ZAI LAB LTDadr | $30,072,029 | -11.3% | 1,237,023 | +1.2% | 0.81% | 0.0% |
| PRTA | Sell | PROTHENA CORP PLC | $29,639,879 | -42.4% | 614,298 | -18.5% | 0.79% | -35.1% |
| HZNP | Sell | HORIZON THERAPEUTICS PUB L | $29,558,795 | -41.9% | 255,500 | -48.4% | 0.79% | -34.6% |
| SWAV | Buy | SHOCKWAVE MED INC | $29,367,250 | -10.6% | 147,500 | +28.1% | 0.79% | +0.6% |
| ABCM | Sell | ABCAM PLCads | $28,853,250 | -51.0% | 1,275,000 | -47.0% | 0.77% | -44.8% |
| MDGL | Sell | MADRIGAL PHARMACEUTICALS INC | $28,677,729 | -37.7% | 196,369 | -1.4% | 0.77% | -29.9% |
| Buy | AMYLYX PHARMACEUTICALS INC | $28,289,243 | -15.1% | 1,545,016 | +0.0% | 0.76% | -4.4% | |
| ACRS | Sell | ACLARIS THERAPEUTICS INC | $27,129,076 | -34.0% | 3,960,449 | -0.0% | 0.73% | -25.6% |
| DVAX | DYNAVAX TECHNOLOGIES CORP | $26,789,206 | +14.3% | 1,813,758 | 0.0% | 0.72% | +28.7% | |
| XLV | SELECT SECTOR SPDR TRsbi healthcare | $25,748,000 | -3.0% | 200,000 | 0.0% | 0.69% | +9.2% | |
| LFST | Buy | LIFESTANCE HEALTH GROUP INC | $25,212,900 | -4.8% | 3,670,000 | +26.6% | 0.68% | +7.1% |
| IMVT | New | IMMUNOVANT INC | $24,736,366 | – | 644,344 | +100.0% | 0.66% | – |
| OLK | Buy | OLINK HLDG ABsponsored ads | $24,728,375 | -20.3% | 1,676,500 | +1.4% | 0.66% | -10.3% |
| BRKS | Buy | AZENTA INC | $23,965,725 | +9.3% | 477,500 | +1.6% | 0.64% | +23.0% |
| BMRN | BIOMARIN PHARMACEUTICAL INC | $23,402,960 | +2.1% | 264,500 | 0.0% | 0.63% | +15.0% | |
| NVRO | Buy | NEVRO CORP | $23,286,952 | -24.4% | 1,211,600 | +0.0% | 0.62% | -14.9% |
| IMTX | Sell | IMMATICS N.V | $21,717,896 | -25.8% | 1,875,466 | -26.1% | 0.58% | -16.4% |
| KYMR | Buy | KYMERA THERAPEUTICS INC | $20,910,479 | -38.9% | 1,504,351 | +1.1% | 0.56% | -31.2% |
| Buy | WARBY PARKER INC | $20,727,000 | +33.8% | 1,575,000 | +18.9% | 0.56% | +50.4% | |
| RVMD | Buy | REVOLUTION MEDICINES INC | $20,072,207 | +6.8% | 725,152 | +3.2% | 0.54% | +20.4% |
| MRUS | Buy | MERUS N V | $19,770,132 | +56.9% | 838,428 | +75.2% | 0.53% | +76.7% |
| AMGN | New | AMGEN INC | $18,275,680 | – | 68,000 | +100.0% | 0.49% | – |
| BCRX | Buy | BIOCRYST PHARMACEUTICALS INC | $18,062,680 | +2.7% | 2,551,226 | +2.2% | 0.48% | +15.8% |
| DISC MEDICINE INC | $17,075,727 | +5.8% | 363,468 | 0.0% | 0.46% | +19.0% | ||
| TVTX | Buy | TRAVERE THERAPEUTICS INC | $16,161,213 | -31.1% | 1,807,742 | +18.3% | 0.43% | -22.4% |
| INZY | Buy | INOZYME PHARMA INC | $15,460,931 | -19.0% | 3,681,174 | +7.4% | 0.41% | -8.8% |
| CLDX | Buy | CELLDEX THERAPEUTICS INC NEW | $13,762,780 | -3.8% | 500,101 | +18.6% | 0.37% | +8.5% |
| FOLD | AMICUS THERAPEUTICS INC | $12,935,881 | -3.2% | 1,063,806 | 0.0% | 0.35% | +9.1% | |
| COLL | Sell | COLLEGIUM PHARMACEUTICAL INC | $12,560,700 | -10.1% | 562,000 | -13.5% | 0.34% | +1.2% |
| IMGN | Buy | IMMUNOGEN INC | $12,051,123 | +467.1% | 759,365 | +574.3% | 0.32% | +533.3% |
| ABOS | New | ACUMEN PHARMACEUTICALS INC | $11,672,203 | – | 2,812,579 | +100.0% | 0.31% | – |
| MINERALYS THERAPEUTICS INC | $11,102,849 | -44.2% | 1,167,492 | 0.0% | 0.30% | -37.3% | ||
| CMPX | COMPASS THERAPEUTICS INC | $10,862,162 | -38.1% | 5,513,788 | 0.0% | 0.29% | -30.2% | |
| KRYS | Buy | KRYSTAL BIOTECH INC | $10,504,960 | +156.4% | 90,560 | +159.5% | 0.28% | +189.7% |
| MREO | Buy | MEREO BIOPHARMA GROUP PLCspon ads | $9,902,660 | +6.5% | 7,676,481 | +9.0% | 0.26% | +19.9% |
| EDAP | Buy | EDAP TMS S Asponsored adr | $9,547,200 | -12.7% | 1,360,000 | +14.6% | 0.26% | -1.5% |
| INSP | New | INSPIRE MED SYS INC | $8,830,580 | – | 44,500 | +100.0% | 0.24% | – |
| RPHM | RENEO PHARMACEUTICALS INC | $8,705,354 | +16.1% | 1,143,185 | 0.0% | 0.23% | +30.9% | |
| PLRX | PLIANT THERAPEUTICS INC | $8,517,772 | -4.3% | 491,221 | 0.0% | 0.23% | +7.5% | |
| LUNG | PULMONX CORP | $6,739,292 | -21.2% | 652,400 | 0.0% | 0.18% | -10.8% | |
| ICOSAVAX INC | $6,730,170 | -22.0% | 868,409 | 0.0% | 0.18% | -12.2% | ||
| New | SAGIMET BIOSCIENCES INC | $6,497,524 | – | 738,355 | +100.0% | 0.17% | – | |
| Sell | AURA BIOSCIENCES INC | $6,484,377 | -48.5% | 722,896 | -29.1% | 0.17% | -42.0% | |
| SPRB | SPRUCE BIOSCIENCES INC | $6,165,563 | +5.1% | 2,728,125 | 0.0% | 0.16% | +17.9% | |
| RLAY | RELAY THERAPEUTICS INC | $5,668,054 | -33.0% | 673,966 | 0.0% | 0.15% | -24.4% | |
| MGNX | Buy | MACROGENICS INC | $5,493,189 | -8.6% | 1,178,796 | +5.0% | 0.15% | +2.8% |
| NVAX | Buy | NOVAVAX INC | $4,689,348 | +17.6% | 647,700 | +20.7% | 0.13% | +32.6% |
| MRSN | MERSANA THERAPEUTICS INC | $4,321,979 | -61.4% | 3,403,133 | 0.0% | 0.12% | -56.4% | |
| CYTK | Sell | CYTOKINETICS INC | $3,955,064 | -72.9% | 134,252 | -70.0% | 0.11% | -69.5% |
| AUPH | AURINIA PHARMACEUTICALS INC | $3,726,026 | -19.7% | 479,540 | 0.0% | 0.10% | -9.1% | |
| GOSSAMER BIO INCnote 5.000% 6/0 | $3,707,987 | +28.3% | 9,573,000 | 0.0% | 0.10% | +43.5% | ||
| FULC | FULCRUM THERAPEUTICS INC | $3,230,868 | +34.5% | 727,673 | 0.0% | 0.09% | +52.6% | |
| HCAT | Sell | HEALTH CATALYST INC | $3,111,900 | -73.2% | 307,500 | -66.9% | 0.08% | -70.0% |
| XILIO THERAPEUTICS INC | $3,040,001 | -19.5% | 1,440,759 | 0.0% | 0.08% | -10.0% | ||
| GOSS | Buy | GOSSAMER BIO INC | $2,720,724 | +106.1% | 3,266,960 | +196.9% | 0.07% | +135.5% |
| BEAM | BEAM THERAPEUTICS INC | $2,679,892 | -24.7% | 111,430 | 0.0% | 0.07% | -15.3% | |
| TRAVERE THERAPEUTICS INCnote 2.500% 9/1 | $2,677,483 | -6.3% | 3,250,000 | 0.0% | 0.07% | +5.9% | ||
| VIGIL NEUROSCIENCE INC | $2,543,854 | -42.7% | 471,958 | 0.0% | 0.07% | -35.8% | ||
| BMEA | Sell | BIOMEA FUSION INC | $2,492,583 | -86.4% | 181,147 | -78.4% | 0.07% | -84.7% |
| ADAP | ADAPTIMMUNE THERAPEUTICS PLCsponds adr | $2,174,519 | -15.7% | 2,787,845 | 0.0% | 0.06% | -4.9% | |
| EPIX | Buy | ESSA PHARMA INC | $2,091,945 | +16.8% | 677,005 | +2.1% | 0.06% | +30.2% |
| APLT | Buy | APPLIED THERAPEUTICS INC | $2,013,934 | +101.5% | 808,809 | +3.6% | 0.05% | +125.0% |
| New | AEGLEA BIOTHERAPEUTICS INC | $1,672,811 | – | 136,556 | +100.0% | 0.04% | – | |
| LEAP THERAPEUTICS INC | $1,482,833 | -55.9% | 1,074,517 | 0.0% | 0.04% | -50.0% | ||
| NEUROCRINE BIOSCIENCES INCnote 2.250% 5/1 | $1,497,950 | +17.4% | 1,000,000 | 0.0% | 0.04% | +33.3% | ||
| ACELYRIN INC | $1,442,879 | -51.3% | 141,876 | 0.0% | 0.04% | -45.1% | ||
| FATE | FATE THERAPEUTICS INC | $1,297,896 | -55.5% | 612,215 | 0.0% | 0.04% | -49.3% | |
| THESEUS PHARMACEUTICALS INC | $1,176,415 | -71.2% | 437,329 | 0.0% | 0.03% | -67.0% | ||
| CGEN | COMPUGEN LTDord | $1,199,691 | -18.4% | 1,289,990 | 0.0% | 0.03% | -8.6% | |
| DSGN | DESIGN THERAPEUTICS INC | $1,086,523 | -62.5% | 460,391 | 0.0% | 0.03% | -58.0% | |
| VINC | VINCERX PHARMA INC | $900,636 | -22.3% | 891,719 | 0.0% | 0.02% | -14.3% | |
| KNTE | Sell | KINNATE BIOPHARMA INC | $568,135 | -74.9% | 405,811 | -45.7% | 0.02% | -72.2% |
| NEVRO CORPnote 2.750% 4/0 | $472,128 | +2.1% | 500,000 | 0.0% | 0.01% | +18.2% | ||
| NKTX | NKARTA INC | $460,884 | -36.5% | 331,571 | 0.0% | 0.01% | -29.4% | |
| New | CERVOMED INC | $369,752 | – | 80,033 | +100.0% | 0.01% | – | |
| NVTA | Sell | INVITAE CORP | $354,441 | -81.0% | 585,659 | -64.5% | 0.01% | -79.5% |
| ACELRX PHARMACEUTICALS INC | $183,547 | -47.7% | 316,460 | 0.0% | 0.01% | -37.5% | ||
| TPST | TEMPEST THERAPEUTICS INC | $163,384 | -76.0% | 536,214 | 0.0% | 0.00% | -75.0% | |
| BCEL | ATRECA INC | $94,620 | -73.4% | 362,530 | 0.0% | 0.00% | -62.5% | |
| SPRO | Sell | SPERO THERAPEUTICS INC | $69,421 | -92.8% | 57,373 | -91.4% | 0.00% | -91.3% |
| GMDA | Sell | GAMIDA CELL LTD | $53,575 | -96.1% | 52,015 | -92.7% | 0.00% | -97.0% |
| NUVBWS | NUVATION BIO INC*w exp 07/07/202 | $13,403 | -39.5% | 134,028 | 0.0% | 0.00% | -100.0% | |
| ALT | Exit | ALTIMMUNE INC | $0 | – | -223,255 | -100.0% | -0.02% | – |
| AGLE | Exit | AEGLEA BIOTHERAPEUTICS INC | $0 | – | -3,413,906 | -100.0% | -0.04% | – |
| BDTX | Exit | BLACK DIAMOND THERAPEUTICS I | $0 | – | -563,233 | -100.0% | -0.07% | – |
| PRTK | Exit | PARATEK PHARMACEUTICALS INC | $0 | – | -1,734,037 | -100.0% | -0.09% | – |
| NVCR | Exit | NOVOCURE LTD | $0 | – | -125,000 | -100.0% | -0.12% | – |
| ANAB | Exit | ANAPTYSBIO INC | $0 | – | -341,637 | -100.0% | -0.16% | – |
| GH | Exit | GUARDANT HEALTH INC | $0 | – | -200,000 | -100.0% | -0.17% | – |
| Exit | BIOHAVEN LTD | $0 | – | -401,624 | -100.0% | -0.23% | – | |
| KDNY | Exit | CHINOOK THERAPEUTICS INC | $0 | – | -396,280 | -100.0% | -0.36% | – |
| CNMD | Exit | CONMED CORP | $0 | – | -205,000 | -100.0% | -0.66% | – |
Original filings
The following EDGAR filing(s) were analyzed to create this report:
- View 13F-HR filed 2023-11-14
Top long-term holdings
| Name | Quarters owned | Latest quarter owned | Max weighting |
|---|---|---|---|
| INTUITIVE SURGICAL INC | 40 | Q3 2023 | 3.4% |
| NEUROCRINE BIOSCIENCES INC | 39 | Q3 2023 | 4.8% |
| PACIRA PHARMACEUTICALS INC | 39 | Q3 2023 | 2.6% |
| ULTRAGENYX PHARMACEUTICAL IN | 39 | Q3 2023 | 1.9% |
| ACADIA HEALTHCARE COMPANY IN | 38 | Q3 2023 | 4.4% |
| ASCENDIS PHARMA A/S | 35 | Q3 2023 | 1.3% |
| INVITAE CORP | 35 | Q3 2023 | 1.8% |
| BIOMARIN PHARMACEUTICAL INC | 35 | Q3 2023 | 1.3% |
| MACROGENICS INC | 35 | Q3 2023 | 0.5% |
| COLLEGIUM PHARMACEUTICAL INC | 34 | Q3 2023 | 2.1% |
View Rock Springs Capital Management LP's complete holdings history.
Latest significant ownerships (13-D/G)
| Filed | Shares | Percentage | |
|---|---|---|---|
| Aeglea BioTherapeutics, Inc. | February 14, 2023 | 3,413,906 | 5.6% |
| Compass Therapeutics, Inc. | February 14, 2023 | 5,333,188 | 4.2% |
| Mirum Pharmaceuticals, Inc. | February 14, 2023 | 1,795,733 | 4.9% |
| PhaseBio Pharmaceuticals IncSold out | February 14, 2023 | 0 | 0.0% |
| Sierra Oncology, Inc.Sold out | February 14, 2023 | 0 | 0.0% |
| ARDELYX, INC.Sold out | February 15, 2022 | 0 | 0.0% |
| CHIASMA, INCSold out | February 15, 2022 | 0 | 0.0% |
| FIVE PRIME THERAPEUTICS, INC.Sold out | February 15, 2022 | 0 | 0.0% |
| F-star Therapeutics, Inc. | February 15, 2022 | 751,889 | 3.6% |
| Protara Therapeutics, Inc.Sold out | February 15, 2022 | 0 | 0.0% |
View Rock Springs Capital Management LP's complete significant-ownership history.
Latest filings
| Type | Filed |
|---|---|
| SC 13G/A | 2024-04-05 |
| 13F-HR | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
View Rock Springs Capital Management LP's complete filings history.
All filings
- Holdings (13F-HR)
- Significant ownership (13-D/G)
- Insider transactions (4, 5, 6)
- Events (8-K)
- Shareholder votes (proxy)
View complete filings history.