Whale Analyzer
Top public holders · 13F and disclosure aggregation

Who owns MLYS? 13F holders and whale ownership

MLYS is tracked across public portfolios in Whale Analyzer. This page answers who owns MLYS, which top funds are buying MLYS, aggregate disclosed value, and recent position changes based on public data.

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2Tracked holders
$264.0MAggregate reported value
2026-05-19Page updated
2 increasedRecent changes

Top holders

InvestorReported valueSharesChange
Peter Kolchinsky 13F portfolio
RA Capital Management holdings
$208.4M7.7MIncreased
Samuel Isaly 13F portfolio
OrbiMed Advisors holdings
$55.6M2.1MIncreased

How to read this page

Values are reported public positions from tracked investors and institutions. They are not real-time ownership totals for the company.

This page is generated from public filings and public disclosures. It is for research and education only and is not investment advice.

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Frequently asked questions

Who owns MLYS stock?

Whale Analyzer tracks 2 public institutional holders of MLYS with a combined reported value of $264.0M. See the holder table above for the largest tracked positions.

Which top funds are buying MLYS?

Check the "Change" column in the holders table above. "New" means a fresh position was initiated, "Added" means an existing position was increased, and "Reduced" or "Sold" indicates trimming.

What does 13F ownership mean for MLYS?

Use the interactive MLYS dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.