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Top public holders · 13F and disclosure aggregation

Who owns NAMSW? 13F holders and whale ownership

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

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4Tracked holders
$615.2MAggregate reported value
2026-05-19Page updated
3 held, 1 increasedRecent changes

Top holders

InvestorReported valueSharesChange
Peter Kolchinsky 13F portfolio
RA Capital Management holdings
$312.4M9.9MHeld
Andreas Halvorsen 13F portfolio
Viking Global Investors holdings
$134.6M4.2MHeld
Stanley Druckenmiller 13F portfolio
Duquesne Family Office holdings
$98.3M3.1MHeld
Lee Ainslie 13F portfolio
Maverick Capital holdings
$70.0M2.2MIncreased

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 NAMSW stock?

Whale Analyzer tracks 4 public institutional holders of NAMSW with a combined reported value of $615.2M. See the holder table above for the largest tracked positions.

Which top funds are buying NAMSW?

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 NAMSW?

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