Hedge Funds Similar to Rock Springs

13F Portfolio OverlapQ1 2026Rock Springs portfolio →
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Most similar hedge funds by 13F overlap

Rock Springs Capital Management LP is an institutional investor managing $1.7B across 100 U.S. equity positions as of Q1 2026. Based on the overlap of conviction holdings in their latest 13F filings, the hedge funds with portfolios most similar to Rock Springs are First Turn ,, Avoro Advisors, Bellevue Group AG, with shared positions in $RVMD, $MIRM, $INSM, $XENE, $KYMR, $SRRK. The full ranking of 25 similar funds is below.

Substantial overlap · 12 shared positions
$895M
33 positions
Substantial overlap · 9 shared positions
$10.2B
32 positions
Substantial overlap · 12 shared positions
$4.2B
155 positions
Substantial overlap · 12 shared positions
$2.1B
90 positions
Substantial overlap · 12 shared positions
$10.0B
88 positions
Substantial overlap · 10 shared positions
$572M
28 positions
Substantial overlap · 13 shared positions
$2.0B
66 positions
Substantial overlap · 11 shared positions
$3.6B
90 positions
Notable overlap · 8 shared positions
$17.4B
84 positions
Notable overlap · 11 shared positions
$310M
39 positions
Notable overlap · 8 shared positions
$564M
29 positions
#12Siren, L.L.C.Active
Notable overlap · 11 shared positions
$3.6B
100 positions
Notable overlap · 9 shared positions
$4.9B
35 positions
Notable overlap · 11 shared positions
$315M
114 positions
#15BVF INC/ILActive
Notable overlap · 5 shared positions
$3.1B
41 positions
Notable overlap · 10 shared positions
$193M
56 positions
Notable overlap · 8 shared positions
$515M
82 positions
Notable overlap · 11 shared positions
$654M
51 positions
Notable overlap · 11 shared positions
$1.9B
105 positions
Notable overlap · 11 shared positions
$1.1B
83 positions
Notable overlap · 6 shared positions
$713M
17 positions
Notable overlap · 7 shared positions
$712M
31 positions
#23BRAIDWELL LPPassive
Notable overlap · 11 shared positions
$3.0B
88 positions
Notable overlap · 10 shared positions
$5.0B
112 positions
Notable overlap · 7 shared positions
$121M
24 positions

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Similarity is derived from each fund’s latest 13F-HR filing with the SEC. Funds are ranked by the overlap of distinctive conviction holdings; near-universal mega-cap positions are excluded so the ranking reflects shared strategy, not common index exposure. Data is informational only and not investment advice.