Rhenman & Partners Asset Management AB
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 14, 2026), Rhenman & Partners Asset Management AB reported 86 stock positions worth $810.5 million. Its top holding was Boston Scientific (BSX) at 4.8% of the portfolio, followed by Regeneron Pharmaceuticals (REGN, 4.6%) and Eli Lilly (LLY, 3.8%). Compared with Q4 2025, it opened 11 new positions, sold out of 19, added to 30 and reduced 42. The biggest buy was a new position in Stryker (SYK) and the biggest sale Cooper Cos (COO, shares −85%).
- Most Recent 13F
- Q2 2026
- Location
- Stockholm, V7
- CIK
- 0001599882
- Portfolio Value
- $810.5M (Q1 2026)
- SEC Filing
- 0001213900-26-056196 ↗ filed May 14, 2026
Holdings Value
Holdings 86 stocks · $810.5M
| BSX Boston Scientific Corp. | 4.84% | 625,000 | $39.2M | Add +44.9% |
| REGN Regeneron Pharmaceuticals | 4.59% | 48,100 | $37.2M | Reduce -21.7% |
| LLY Eli Lilly & Co. | 3.83% | 33,715 | $31.0M | Reduce -20.1% |
| INSM Insmed Inc. | 3.22% | 159,760 | $26.1M | Add +40.6% |
| CVS CVS Health Corp. | 2.98% | 336,500 | $24.2M | Add +0.3% |
| GILD Gilead Sciences Inc. | 2.88% | 167,750 | $23.4M | Add +33.0% |
| TMO Thermo Fisher Scientific Inc. | 2.51% | 41,340 | $20.3M | Add +22.9% |
| BIIB Biogen Inc. | 2.47% | 109,100 | $20.0M | Add +18.1% |
| VRTX Vertex Pharmaceuticals Inc. | 2.40% | 43,485 | $19.4M | Add +26.9% |
| ALHC Alignment Healthcare Inc. | 2.29% | 1,053,450 | $18.6M | Add +4.4% |
| ISRG Intuitive Surgical Inc. | 2.10% | 36,846 | $17.0M | Reduce -23.2% |
| COR Cencora Inc. | 2.03% | 52,375 | $16.5M | Reduce -17.4% |
| SYK Stryker Corp. | 1.94% | 47,800 | $15.7M | New |
| ABBV Abbvie Inc. | 1.92% | 71,575 | $15.6M | Reduce -35.3% |
| VEEV Veeva Systems Inc. Class A | 1.85% | 85,300 | $15.0M | New |
| MCK McKesson Corp. | 1.80% | 16,850 | $14.6M | Reduce -34.2% |
| JAZZ Jazz Pharmaceuticals PLC | 1.77% | 75,890 | $14.3M | Add +2.5% |
| GH Guardant Health Inc. | 1.65% | 145,000 | $13.4M | Add +81.3% |
| NBIX Neurocrine Biosciences Inc. | 1.64% | 100,841 | $13.3M | Reduce -19.6% |
| EW Edwards Lifesciences Corp. | 1.61% | 163,000 | $13.1M | Reduce -15.8% |
| MDGL Madrigal Pharmaceuticals Inc. | 1.55% | 24,050 | $12.6M | Add +23.0% |
| UNH Unitedhealth Group Inc. | 1.52% | 45,500 | $12.3M | Reduce -17.1% |
| PRCT Procept Biorobotics Corp. | 1.47% | 475,000 | $11.9M | Reduce -22.3% |
| BMRN Biomarin Pharmaceutical Inc. | 1.44% | 207,000 | $11.7M | Reduce -3.7% |
| ABT Abbott Laboratories | 1.42% | 112,000 | $11.5M | New |
| ALNY Alnylam Pharmaceuticals Inc. | 1.41% | 34,465 | $11.4M | Reduce -24.5% |
| RPRX Royalty Pharma PLC Class A | 1.38% | 233,000 | $11.2M | Add +12.8% |
| AXSM Axsome Therapeutics Inc. | 1.33% | 63,800 | $10.8M | Reduce -44.4% |
| NTRA Natera Inc. | 1.27% | 51,600 | $10.3M | Add +27.4% |
| THC Tenet Healthcare Corp. | 1.26% | 54,000 | $10.2M | Reduce -29.4% |
| ADPT Adaptive Biotechnologies | 1.23% | 720,000 | $10.0M | Add +19.0% |
| LIVN Livanova PLC | 1.22% | 155,000 | $9.9M | Reduce -18.4% |
| ELV Elevance Health Inc. | 1.17% | 32,300 | $9.5M | Add +115.3% |
| ARWR Arrowhead Pharmaceuticals Inc. | 1.12% | 144,500 | $9.1M | No change |
| GKOS Glaukos Corp. | 1.12% | 84,000 | $9.0M | Reduce -60.0% |
| IQV Iqvia Holdings Inc. | 1.12% | 53,000 | $9.0M | Add +100.0% |
| SNDX Syndax Pharmaceuticals Inc. | 1.09% | 379,250 | $8.9M | Reduce -22.1% |
| MIRM Mirum Pharmaceuticals Inc. | 1.06% | 92,605 | $8.6M | Reduce -12.8% |
| IDYA Ideaya Biosciences Inc. | 1.05% | 255,500 | $8.5M | Add +2.2% |
| PNTG The Pennant Group Inc. | 1.04% | 275,399 | $8.4M | Reduce -22.9% |
| NUVL Nuvalent Inc. Class A | 1.03% | 81,200 | $8.3M | Reduce -50.3% |
| WAY Waystar Holding Corp. | 1.02% | 342,566 | $8.3M | New |
| AVR Anteris Technologies Global | 0.99% | 1,438,625 | $8.0M | Add +16.1% |
| MDT Medtronic PLC | 0.96% | 90,000 | $7.8M | Reduce -69.6% |
| OSCR Oscar Health Inc. Class A | 0.93% | 660,000 | $7.6M | Add +153.8% |
| IOVA Iovance Biotherapeutics Inc. | 0.89% | 2,055,327 | $7.2M | Add +28.8% |
| MLYS Mineralys Therapeutics Inc. | 0.88% | 263,071 | $7.1M | Add +84.5% |
| IONS Ionis Pharmaceuticals Inc. | 0.86% | 92,900 | $7.0M | Reduce -41.4% |
| DNTH Dianthus Therapeutics Inc. | 0.85% | 81,627 | $6.9M | Reduce -17.2% |
| BBIO Bridgebio Pharma Inc. | 0.83% | 90,600 | $6.7M | Add +11.0% |
| APGE Apogee Therapeutics Inc. | 0.78% | 75,000 | $6.3M | New |
| GPCR Structure Therapeutics Inc. | 0.76% | 128,100 | $6.2M | Reduce -13.2% |
| CAH Cardinal Health Inc. | 0.70% | 27,000 | $5.7M | New |
| EHC Encompass Health Corp. | 0.67% | 56,263 | $5.4M | Reduce -61.5% |
| AMGN Amgen Inc. | 0.66% | 15,200 | $5.3M | Reduce -57.8% |
| VKTX Viking Therapeutics Inc. | 0.64% | 160,000 | $5.2M | Add +92.8% |
| NRIX Nurix Therapeutics Inc. | 0.60% | 313,500 | $4.9M | Reduce -41.7% |
| ALKS Alkermes PLC | 0.58% | 133,250 | $4.7M | No change |
| CRL Charles River Laboratories | 0.55% | 26,000 | $4.5M | Add +18.2% |
| MLTX Moonlake Immunotherapeutics | 0.55% | 239,500 | $4.5M | Reduce -34.2% |
| KRYS Krystal Biotech Inc. | 0.53% | 16,675 | $4.3M | Reduce -33.3% |
| DOCS Doximity Inc. Class A | 0.53% | 183,808 | $4.3M | Reduce -50.7% |
| NKTR Nektar Therapeutics | 0.52% | 59,000 | $4.2M | New |
| DNLI Denali Therapeutics Inc. | 0.47% | 199,000 | $3.8M | Add +99.0% |
| STVN Stevanato Group SPA | 0.47% | 274,676 | $3.8M | Add +86.8% |
| RLAY Relay Therapeutics Inc. | 0.44% | 360,000 | $3.6M | Reduce -21.7% |
| COO The Cooper Cos Inc. | 0.44% | 50,000 | $3.6M | Reduce -84.7% |
| SION Sionna Therapeutics Inc. | 0.43% | 87,500 | $3.5M | New |
| ASND Ascendis Pharma A/S | 0.42% | 15,000 | $3.4M | No change |
| DHR Danaher Corp. | 0.42% | 18,052 | $3.4M | Reduce -81.8% |
| PODD Insulet Corp. | 0.36% | 14,000 | $2.9M | Reduce -77.0% |
| A Agilent Technologies Inc. | 0.35% | 25,000 | $2.8M | Add +25.0% |
| STOK Stoke Therapeutics Inc. | 0.33% | 83,000 | $2.7M | Reduce -61.6% |
| ESPR Esperion Therapeutics Inc. | 0.33% | 985,000 | $2.7M | New |
| IMCR Immunocore Holdings PLC-ADR | 0.32% | 85,724 | $2.6M | Reduce -44.1% |
| OCUL Ocular Therapeutix Inc. | 0.32% | 305,000 | $2.6M | Add +15.1% |
| STE Steris PLC | 0.31% | 11,500 | $2.5M | Add +91.7% |
| VCEL Vericel Corp. | 0.28% | 70,000 | $2.3M | Reduce -40.2% |
| KURA Kura Oncology Inc. | 0.27% | 271,500 | $2.2M | Reduce -68.9% |
| CI The Cigna Group | 0.26% | 8,000 | $2.1M | Reduce -79.3% |
| BTSG Brightspring Health Services | 0.26% | 50,000 | $2.1M | Reduce -74.8% |
| XENE Xenon Pharmaceuticals Inc. | 0.20% | 28,000 | $1.6M | Reduce -79.9% |
| ALGN Align Technology Inc. | 0.16% | 7,500 | $1.3M | Reduce -92.4% |
| NVCR Novocure Ltd. | 0.09% | 70,000 | $763K | New |
| ATEC Alphatec Holdings Inc. | 0.09% | 70,000 | $762K | Add +250.0% |
| CMPX Compass Therapeutics Inc. | 0.08% | 115,113 | $609K | New |
Portfolio Sells Q4 2025 → Q1 2026
| COO The Cooper Cos Inc. | Reduce -84.7% | 0.44% | −2.07 |
| VERA Vera Therapeutics Inc. | Sold out | 0.00% | −1.99 |
| DHR Danaher Corp. | Reduce -81.8% | 0.42% | −1.70 |
| MDT Medtronic PLC | Reduce -69.6% | 0.96% | −1.70 |
| ALGN Align Technology Inc. | Reduce -92.4% | 0.16% | −1.29 |
| PODD Insulet Corp. | Reduce -77.0% | 0.36% | −1.26 |
| GKOS Glaukos Corp. | Reduce -60.0% | 1.12% | −1.10 |
| DOCS Doximity Inc. Class A | Reduce -50.7% | 0.53% | −1.01 |
| PEN Penumbra Inc. | Sold out | 0.00% | −0.92 |
| APLS Apellis Pharmaceuticals Inc. | Sold out | 0.00% | −0.88 |
| ACLX Arcellx Inc. | Sold out | 0.00% | −0.81 |
| EHC Encompass Health Corp. | Reduce -61.5% | 0.67% | −0.78 |
| CI The Cigna Group | Reduce -79.3% | 0.26% | −0.73 |
| BRKR Bruker Corp. | Sold out | 0.00% | −0.65 |
| AXSM Axsome Therapeutics Inc. | Reduce -44.4% | 1.33% | −0.63 |
| KURA Kura Oncology Inc. | Reduce -68.9% | 0.27% | −0.57 |
| NUVL Nuvalent Inc. Class A | Reduce -50.3% | 1.03% | −0.51 |
| ISRG Intuitive Surgical Inc. | Reduce -23.2% | 2.10% | −0.45 |
| AMGN Amgen Inc. | Reduce -57.8% | 0.66% | −0.44 |
| ABBV Abbvie Inc. | Reduce -35.3% | 1.92% | −0.44 |
| BTSG Brightspring Health Services | Reduce -74.8% | 0.26% | −0.43 |
| LLY Eli Lilly & Co. | Reduce -20.1% | 3.83% | −0.41 |
| XENE Xenon Pharmaceuticals Inc. | Reduce -79.9% | 0.20% | −0.38 |
| NRIX Nurix Therapeutics Inc. | Reduce -41.7% | 0.60% | −0.35 |
| RYTM Rhythm Pharmaceuticals Inc. | Sold out | 0.00% | −0.35 |
| PRCT Procept Biorobotics Corp. | Reduce -22.3% | 1.47% | −0.33 |
| RDNT Radnet Inc. | Sold out | 0.00% | −0.31 |
| IONS Ionis Pharmaceuticals Inc. | Reduce -41.4% | 0.86% | −0.31 |
| INSP Inspire Medical Systems Inc. | Sold out | 0.00% | −0.31 |
| STOK Stoke Therapeutics Inc. | Reduce -61.6% | 0.33% | −0.31 |
| JANX Janux Therapeutics Inc. | Sold out | 0.00% | −0.29 |
| ALNY Alnylam Pharmaceuticals Inc. | Reduce -24.5% | 1.41% | −0.29 |
| PRVA Privia Health Group Inc. | Sold out | 0.00% | −0.28 |
| CYTK Cytokinetics Inc. | Sold out | 0.00% | −0.26 |
| XNCR Xencor Inc. | Sold out | 0.00% | −0.24 |
| CNTA Centessa Pharmaceuticals Ltd. | Sold out | 0.00% | −0.23 |
| TGTX TG Therapeutics Inc. | Sold out | 0.00% | −0.20 |
| GPCR Structure Therapeutics Inc. | Reduce -13.2% | 0.76% | −0.20 |
| BNTX Biontech SE-ADR | Sold out | 0.00% | −0.19 |
| WST West Pharmaceutical Services | Sold out | 0.00% | −0.18 |
| IMCR Immunocore Holdings PLC-ADR | Reduce -44.1% | 0.32% | −0.18 |
| CNC Centene Corp. | Sold out | 0.00% | −0.18 |
| QURE Uniqure NV | Sold out | 0.00% | −0.18 |
| UNH Unitedhealth Group Inc. | Reduce -17.1% | 1.52% | −0.17 |
| MCK McKesson Corp. | Reduce -34.2% | 1.80% | −0.16 |
| THC Tenet Healthcare Corp. | Reduce -29.4% | 1.26% | −0.16 |
| IRTC Irhythm Holdings Inc. | Sold out | 0.00% | −0.12 |
| VCEL Vericel Corp. | Reduce -40.2% | 0.28% | −0.12 |
| KRYS Krystal Biotech Inc. | Reduce -33.3% | 0.53% | −0.04 |
| NBIX Neurocrine Biosciences Inc. | Reduce -19.6% | 1.64% | −0.02 |
Portfolio Buys Q4 2025 → Q1 2026
| SYK Stryker Corp. | New | 1.94% | +1.94 |
| VEEV Veeva Systems Inc. Class A | New | 1.85% | +1.85 |
| GILD Gilead Sciences Inc. | Add +33.0% | 2.88% | +1.44 |
| ABT Abbott Laboratories | New | 1.42% | +1.42 |
| INSM Insmed Inc. | Add +40.6% | 3.22% | +1.38 |
| WAY Waystar Holding Corp. | New | 1.02% | +1.02 |
| BSX Boston Scientific Corp. | Add +44.9% | 4.84% | +1.00 |
| BIIB Biogen Inc. | Add +18.1% | 2.47% | +0.95 |
| VRTX Vertex Pharmaceuticals Inc. | Add +26.9% | 2.40% | +0.94 |
| GH Guardant Health Inc. | Add +81.3% | 1.65% | +0.89 |
| APGE Apogee Therapeutics Inc. | New | 0.78% | +0.78 |
| CAH Cardinal Health Inc. | New | 0.70% | +0.70 |
| TMO Thermo Fisher Scientific Inc. | Add +22.9% | 2.51% | +0.69 |
| ELV Elevance Health Inc. | Add +115.3% | 1.17% | +0.68 |
| RPRX Royalty Pharma PLC Class A | Add +12.8% | 1.38% | +0.63 |
| JAZZ Jazz Pharmaceuticals PLC | Add +2.5% | 1.77% | +0.59 |
| OSCR Oscar Health Inc. Class A | Add +153.8% | 0.93% | +0.58 |
| IQV Iqvia Holdings Inc. | Add +100.0% | 1.12% | +0.56 |
| NKTR Nektar Therapeutics | New | 0.52% | +0.52 |
| CVS CVS Health Corp. | Add +0.3% | 2.98% | +0.49 |
| MDGL Madrigal Pharmaceuticals Inc. | Add +23.0% | 1.55% | +0.49 |
| IOVA Iovance Biotherapeutics Inc. | Add +28.8% | 0.89% | +0.48 |
| SION Sionna Therapeutics Inc. | New | 0.43% | +0.43 |
| ALHC Alignment Healthcare Inc. | Add +4.4% | 2.29% | +0.43 |
| AVR Anteris Technologies Global | Add +16.1% | 0.99% | +0.41 |
| NTRA Natera Inc. | Add +27.4% | 1.27% | +0.41 |
| MLYS Mineralys Therapeutics Inc. | Add +84.5% | 0.88% | +0.40 |
| VKTX Viking Therapeutics Inc. | Add +92.8% | 0.64% | +0.37 |
| ESPR Esperion Therapeutics Inc. | New | 0.33% | +0.33 |
| DNLI Denali Therapeutics Inc. | Add +99.0% | 0.47% | +0.32 |
| ADPT Adaptive Biotechnologies | Add +19.0% | 1.23% | +0.31 |
| BBIO Bridgebio Pharma Inc. | Add +11.0% | 0.83% | +0.25 |
| IDYA Ideaya Biosciences Inc. | Add +2.2% | 1.05% | +0.24 |
| STVN Stevanato Group SPA | Add +86.8% | 0.47% | +0.19 |
| STE Steris PLC | Add +91.7% | 0.31% | +0.17 |
| CRL Charles River Laboratories | Add +18.2% | 0.55% | +0.14 |
| A Agilent Technologies Inc. | Add +25.0% | 0.35% | +0.10 |
| NVCR Novocure Ltd. | New | 0.09% | +0.09 |
| CMPX Compass Therapeutics Inc. | New | 0.08% | +0.08 |
| ATEC Alphatec Holdings Inc. | Add +250.0% | 0.09% | +0.05 |
| OCUL Ocular Therapeutix Inc. | Add +15.1% | 0.32% | +0.02 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 99 | $1.1B | UNH, CVS, AZN, MRK, LLY |
| Q1 2026 | 86 | $810.5M | BSX, REGN, LLY, INSM, CVS |
| Q4 2025 | 94 | $1.1B | REGN, LLY, BSX, MDT, ISRG |
| Q3 2025 | 92 | $903.7M | BSX, LLY, ABBV, DHR, ALHC |
| Q2 2025 | 90 | $791.0M | LLY, BSX, VRTX, GKOS, ISRG |
| Q1 2025 | 94 | $870.0M | UNH, LLY, VRTX, MCK, BSX |
| Q4 2024 | 92 | $972.9M | BSX, LLY, PRCT, ISRG, REGN |
| Q3 2024 | 95 | $1.2B | BSX, UNH, LLY, REGN, THC |
| Q2 2024 | 93 | $1.0B | UNH, ELV, BSX, LLY, REGN |
| Q1 2024 | 84 | $1.1B | CI, LLY, THC, BSX, ELV |