Rhenman & Partners Asset Management AB

RIA/Wealth

Rhenman & Partners Asset Management AB is a RIA/Wealth based in Colorado Springs, CO led by William Eddy Roark, managing $903.7M across 92 long positions as of Q3 2025 with 98% Healthcare concentration.

Managing PartnerWilliam Eddy Roark

Portfolio Value: $903.7M
Positions: 92
Top Holding: BSX at 4.73%
Last Reported: Q3 2025

Address660 Southpointe Court, Suite 312, Colorado Springs, CO, 80906, United States

Top Holdings

Largest long holdings in Rhenman & Partners Asset Management AB's portfolio (30.1% of total portfolio)

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Holding	Sector	Position	Weight	Traded	Ownership	Owned Since
1 Boston Scientific BSX	Medical - Devices Healthcare	$42.8M	4.73%	+$13.9M Bought	0.03% 438.0K shares	Q3 2017 Held for 8y 2m
2 Eli Lilly LLY	Drug Manufacturers - General Healthcare	$40.8M	4.51%	-$3.4M Sold	0.01% 53.4K shares	Q4 2013 Held for 11y 11m
3 AbbVie ABBV	Drug Manufacturers - General Healthcare	$30.2M	3.34%	+$14.1M Bought	0.01% 130.4K shares	Q1 2014 Held for 11y 8m
4 Danaher DHR	Medical - Diagnostics & Research Healthcare	$26.7M	2.95%	+$2.6M Bought	0.02% 134.5K shares	Q4 2021 Held for 3y 11m
5 Alignment Healthcare ALHC	Medical - Healthcare Plans Healthcare	$25.8M	2.86%	+$3.4M Bought	0.75% 1.5M shares	Q3 2022 Held for 3y 2m
6 Intuitive Surgical ISRG	Medical - Instruments & Supplies Healthcare	$21.7M	2.40%	+$1.9M Bought	0.01% 48.5K shares	Q4 2019 Held for 5y 11m
7 UnitedHealth Group UNH	Medical - Healthcare Plans Healthcare	$21.6M	2.39%	+$11.1M Bought	0.01% 62.5K shares	Q4 2013 Held for 11y 11m
8 Axsome Therapeutics AXSM	Biotechnology Healthcare	$21.0M	2.32%	+$10.0M Bought	0.35% 172.8K shares	Q1 2023 Held for 2y 8m
9 CVS Health CVS	Medical - Healthcare Plans Healthcare	$20.9M	2.31%	-$1.4M Sold	0.02% 277.4K shares	Q3 2024 Held for 1y 2m
10 McKesson MCK	Medical - Distribution Healthcare	$20.5M	2.27%	-$862.9K Sold	0.02% 26.6K shares	Q1 2021 Held for 4y 8m

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Changes

Portfolio activity, position movements, and quarter-over-quarter changes in Rhenman & Partners Asset Management AB's latest filing

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Market Value

$903.7M

Prior: $791.0M

Q/Q Change

+14.24%

+$112.7M

Net Flows % of MV

+7.55%

Turnover Ratio

21.7%

New Purchases

10 stocks

$34.8M

Added To

46 stocks

+$188.6M

Sold Out Of

11 stocks

$68.5M

Reduced Holdings

23 stocks

-$86.6M

Increased Positions

Position	Shares Δ	Change
1 Adaptive Biotechnologies ADPT	New	0 → 495.0K +$7.4M
2 Mineralys Therapeutics, Inc. MLYS	New	0 → 165.0K +$6.3M
3 Stoke Therapeutics, Inc. STOK	New	0 → 250.0K +$5.9M
4 Vera Therapeutics VERA	New	0 → 130.0K +$3.8M
5 Rhythm Pharmaceuticals, Inc. RYTM	New	0 → 35.0K +$3.5M

Decreased Positions

Position	Shares Δ	Change
1 DexCom DXCM	Sold	159.5K → 0 −$13.9M
2 HCA Healthcare HCA	Sold	29.8K → 0 −$11.4M
3 VRNA Verona Pharma VRNA	Sold	106.5K → 0 −$10.1M
4 Oscar Health OSCR	Sold	312.1K → 0 −$6.7M
5 Molina Healthcare MOH	Sold	22.2K → 0 −$6.6M