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Rhenman & Partners Asset Management AB

Diversified strategySector-focusedMomentum follower

Total reported value

$810.5M

Reporting period: 2026-03-31 · Number of holdings: 86

Rhenman & Partners Asset Management AB disclosed 86 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $810.5M and a quarterly turnover rate of 57.1%.

Personality snowflake

Concentration
7.7
Portfolio Stability
57.13
Momentum/Contrarian
100
Sector conviction
100
Diversification
100
Sizing Uniformity
91.86

Recent moves

  • Trim COO

    -84.7%　-$23.3M

  • Trim MDT

    -69.6%　-$20.6M

  • Trim DHR

    -81.8%　-$19.3M

  • Add GILD

    +33.0%　$7.9M

  • Add INSM

    +40.7%　$6.4M

  • Trim ALGN

    -92.4%　-$14.2M

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

#TickerIssuerAsset SubclassWeightWeight ChangeShares Change4Q Trend
1BSXBoston Scientific CORPStock-Healthcare4.84%—+44.94%
2REGNRegeneron PharmaceuticalsStock-Healthcare4.59%+0.16%-21.66%
3LLYEli Lilly & CoStock-Healthcare3.83%-0.41%-20.14%
4INSMInsmed INCStock-Healthcare3.22%+1.37%+40.65%
5CVSCvs Health CORPStock-Healthcare2.98%—+0.30%
6GILDGilead Sciences INCStock-Healthcare2.88%+1.43%+32.98%
7TMOThermo Fisher Scientific INCStock-Healthcare2.51%—+22.89%
8BIIBBiogen INCStock-Healthcare2.47%+0.95%+18.14%
9VRTXVertex Pharmaceuticals INCStock-Healthcare2.40%+0.95%+26.95%
10ALHCAlignment Healthcare INCStock-Other2.29%—+4.36%
11ISRGIntuitive Surgical INCStock-Healthcare2.10%-0.44%-23.24%
12CORCencora INCStock-Healthcare2.03%+0.03%-17.36%
13SYKStryker CORPStock-Healthcare1.94%+1.94%NEW
14ABBVAbbvie INCStock-Healthcare1.92%-0.44%-35.27%
15VEEVVeeva Systems Inc-class AStock-Healthcare1.85%+1.85%NEW
16MCKMckesson CORPStock-Healthcare1.80%-0.16%-34.18%
17JAZZJazz Pharmaceuticals plcStock-Healthcare1.77%—+2.51%
18GHGuardant Health INCStock-Healthcare1.65%+0.89%+81.25%
19NBIXNeurocrine Biosciences INCStock-Healthcare1.64%-0.02%-19.64%
20EWEdwards Lifesciences CORPStock-Healthcare1.61%—-15.76%
21MDGLMadrigal Pharmaceuticals INCStock-Healthcare1.55%—+23.02%
22UNHUnitedhealth Group INCStock-Healthcare1.52%-0.17%-17.12%
23PRCTProcept Biorobotics CORPStock-Other1.47%-0.33%-22.26%
24BMRNBiomarin Pharmaceutical INCStock-Healthcare1.44%—-3.72%
25ABTAbbott LaboratoriesStock-Healthcare1.42%+1.42%NEW
26ALNYAlnylam Pharmaceuticals INCStock-Healthcare1.41%-0.29%-24.54%
27RPRXRoyalty Pharma plcStock-Healthcare1.38%—+12.83%
28AXSMAxsome Therapeutics INCStock-Healthcare1.33%-0.63%-44.43%
29NTRANatera INCStock-Healthcare1.27%—+27.41%
30THCTenet Healthcare CORPStock-Healthcare1.26%-0.16%-29.42%
31ADPTAdaptive BiotechnologiesStock-Other1.23%—+19.01%
32LIVNLivaNova PLCStock-Other1.22%—-18.42%
33ELVElevance Health INCStock-Healthcare1.17%+0.68%+115.33%
34ARWRArrowhead Pharmaceuticals InStock-Healthcare1.12%——
35GKOSGlaukos CORPStock-Healthcare1.12%-1.10%-60.00%
36IQVIqvia Holdings INCStock-Healthcare1.12%—+100.00%
37SNDXSyndax Pharmaceuticals INCStock-Other1.09%—-22.13%
38MIRMMirum Pharmaceuticals INCStock-Other1.06%—-12.85%
39IDYAIdeaya Biosciences INCStock-Other1.05%—+2.20%
40PNTGPennant Group Inc/theStock-Other1.04%—-22.93%
41NUVLNuvalent Inc-aStock-Other1.03%-0.51%-50.29%
42WAYWaystar Holding CORPStock-Other1.02%+1.02%NEW
43AVRAnteris Technologies GlobalStock-Other0.99%—+16.15%
44MDTMedtronic plcStock-Healthcare0.96%-1.70%-69.59%
45OSCROscar Health INC - Class AStock-Healthcare0.93%+0.58%+153.85%
46IOVAIovance Biotherapeutics INCStock-Other0.89%—+28.83%
47MLYSMineralys Therapeutics INCStock-Other0.88%—+84.52%
48IONSIonis Pharmaceuticals INCStock-Healthcare0.86%-0.31%-41.39%
49DNTHDianthus Therapeutics INCStock-Other0.85%—-17.24%
50BBIOBridgebio Pharma INCStock-Healthcare0.83%—+11.03%
1–50 of 86

Holding changes this quarter

Rhenman & Partners Asset Management AB's most significant position changes for 2026-03-31: Sold out: Vera Therapeutics INC (VERA); New buy: Stryker CORP (SYK); New buy: Veeva Systems Inc-class A (VEEV); New buy: Abbott Laboratories (ABT); Sold out: Penumbra INC (PEN).

Position changes disclosed by Rhenman & Partners Asset Management AB for the quarter ending 2026-03-31, including ticker, issuer, weight change, shares change, and action
#TickerIssuerWeight ChangeShares ChangeAction
1GILDGilead Sciences INC+1.4%+32.98%Add
2INSMInsmed INC+1.4%+40.65%Add
3VRTXVertex Pharmaceuticals INC+1%+26.95%Add
4BIIBBiogen INC+1%+18.14%Add
5GHGuardant Health INC+0.9%+81.25%Add
6ELVElevance Health INC+0.7%+115.33%Add
7OSCROscar Health INC - Class A+0.6%+153.85%Add
8REGNRegeneron Pharmaceuticals+0.2%-21.66%Trim
9CORCencora INC0%-17.36%Trim
10NBIXNeurocrine Biosciences INC0%-19.64%Trim
11MCKMckesson CORP-0.2%-34.18%Trim
12THCTenet Healthcare CORP-0.2%-29.42%Trim
13UNHUnitedhealth Group INC-0.2%-17.12%Trim
14GPCRStructure Therapeutics INC-0.2%-13.21%Trim
15ALNYAlnylam Pharmaceuticals INC-0.3%-24.54%Trim
16IONSIonis Pharmaceuticals INC-0.3%-41.39%Trim
17STOKStoke Therapeutics INC-0.3%-61.57%Trim
18PRCTProcept Biorobotics CORP-0.3%-22.26%Trim
19NRIXNurix Therapeutics INC-0.4%-41.67%Trim
20XENEXenon Pharmaceuticals INC-0.4%-79.86%Trim
21LLYEli Lilly & Co-0.4%-20.14%Trim
22BTSGBrightspring Health Services-0.4%-74.75%Trim
23ISRGIntuitive Surgical INC-0.4%-23.24%Trim
24ABBVAbbvie INC-0.4%-35.27%Trim
25AMGNAmgen INC-0.4%-57.78%Trim
26NUVLNuvalent Inc-a-0.5%-50.29%Trim
27KURAKura Oncology INC-0.6%-68.86%Trim
28AXSMAxsome Therapeutics INC-0.6%-44.43%Trim
29CITHE Cigna Group-0.7%-79.30%Trim
30EHCEncompass Health CORP-0.8%-61.53%Trim
31DOCSDoximity Inc-class A-1%-50.69%Trim
32GKOSGlaukos CORP-1.1%-60.00%Trim
33PODDInsulet CORP-1.3%-77.05%Trim
34ALGNAlign Technology INC-1.3%-92.42%Trim
35MDTMedtronic plc-1.7%-69.59%Trim
36DHRDanaher CORP-1.7%-81.78%Trim
37COOCooper Cos Inc/the-2.1%-84.73%Trim
38VERAVera Therapeutics INC—EXITSold out
39SYKStryker CORP—NEWNew buy
40VEEVVeeva Systems Inc-class A—NEWNew buy
41ABTAbbott Laboratories—NEWNew buy
42PENPenumbra INC—EXITSold out
43APLSUSDApellis Pharmaceuticals INC—EXITSold out
44ACLXGBXArcellx INC—EXITSold out
45WAYWaystar Holding CORP—NEWNew buy
46BRKRBruker CORP—EXITSold out
47APGEApogee Therapeutics INC—NEWNew buy
48CAHCardinal Health INC—NEWNew buy
49NKTRNektar Therapeutics—NEWNew buy
50RYTMRhythm Pharmaceuticals INC—EXITSold out

FAQ

What is Rhenman & Partners Asset Management AB and what type of investor is it?
Rhenman & Partners Asset Management AB is a investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-03-31), the firm manages a tracked equity portfolio valued at approximately $810.5M, spread across 86 disclosed positions.
What are Rhenman & Partners Asset Management AB's largest equity positions?
Based on the latest 13F filing, Rhenman & Partners Asset Management AB's top holdings by market value are: 1. Boston Scientific CORP (BSX) — $39.2M (4.8%) 2. Regeneron Pharmaceuticals (REGN) — $37.2M (4.6%) 3. Eli Lilly & Co (LLY) — $31.0M (3.8%) 4. Insmed INC (INSM) — $26.1M (3.2%) 5. Cvs Health CORP (CVS) — $24.2M (3.0%)
What changes did Rhenman & Partners Asset Management AB make in its most recent portfolio filing?
In the latest reported quarter, Rhenman & Partners Asset Management AB made 50 notable position adjustments: 7 new positions were initiated, 7 existing holdings were added to, 30 positions were partially reduced, and 6 were completely exited. The largest of these moves: Sold out: Vera Therapeutics INC (VERA); New buy: Stryker CORP (SYK); New buy: Veeva Systems Inc-class A (VEEV); New buy: Abbott Laboratories (ABT); Sold out: Penumbra INC (PEN)
What sectors does Rhenman & Partners Asset Management AB focus on?
Rhenman & Partners Asset Management AB is concentrated in the following sectors based on its current disclosed equity portfolio: • Health Care: 100.0%