Hedge Funds Similar to WILLIAM JOHN SEMPOLINSKI

13F Portfolio OverlapQ3 2026WILLIAM JOHN SEMPOLINSKI portfolio →
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Most similar hedge funds by 13F overlap

WILLIAM JOHN SEMPOLINSKI is an institutional investor managing $259M across 104 U.S. equity positions as of Q3 2026. Based on the overlap of conviction holdings in their latest 13F filings, the hedge funds with portfolios most similar to WILLIAM JOHN SEMPOLINSKI are Dilation, UNICOM Systems, BERKSHIRE, with shared positions in $SHW, $RKLB, $ASML, $SPCX, $GLW, $STX. The full ranking of 25 similar funds is below.

Some overlap · 4 shared positions
$200M
22 positions
Some overlap · 5 shared positions
$1.5B
39 positions
Some overlap · 6 shared positions
$462M
122 positions
Some overlap · 6 shared positions
$332M
299 positions
Some overlap · 4 shared positions
$763M
98 positions
Some overlap · 5 shared positions
$417M
213 positions
$352M
85 positions
Some overlap · 3 shared positions
$2.0B
636 positions
Some overlap · 3 shared positions
$63M
54 positions
Some overlap · 3 shared positions
$1.2B
278 positions
Some overlap · 5 shared positions
$332M
179 positions
Some overlap · 3 shared positions
$575M
320 positions
Some overlap · 4 shared positions
$446M
329 positions
Some overlap · 3 shared positions
$306M
100 positions
Some overlap · 3 shared positions
$175M
89 positions
Some overlap · 3 shared positions
$252M
155 positions
Some overlap · 3 shared positions
$461M
218 positions
Some overlap · 3 shared positions
$1.2B
54 positions
Some overlap · 3 shared positions
$167M
168 positions
Some overlap · 3 shared positions
$616M
1,040 positions
Some overlap · 3 shared positions
$562M
973 positions
Some overlap · 3 shared positions
$120M
67 positions
Some overlap · 3 shared positions
$553M
365 positions
Some overlap · 3 shared positions
$466M
186 positions
Some overlap · 3 shared positions
$476M
253 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.