Whale Analyzer
Top public holders · 13F and disclosure aggregation

Who owns LEGN? 13F holders and whale ownership

LEGN is tracked across public portfolios in Whale Analyzer. This page answers who owns LEGN, which top funds are buying LEGN, aggregate disclosed value, and recent position changes based on public data. HHLR Advisors is the largest reported holder at $108M; the top five funds control 100.0% of reported ownership; the stock trades above the aggregate whale cost basis of $20.94. Top tracked holders include HHLR Advisors.

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NMS · latest quote
$28.69
+$0.76 (+2.7%)
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1Tracked holders
$108.3MAggregate reported value
2026-05-21Page updated
1 heldRecent changes

Top holders

InvestorReported valueSharesChange
HHLR Advisors 13F portfolio
HHLR Advisors holdings
$108.3M6.0MHeld

Ownership concentration

Reported ownership of LEGN is highly concentrated across tracked institutions.

Whale activity this quarter

Across 1 tracked institutions, 1 held. Net positioning is stable.

Whale cost basis vs current price

The aggregate tracked cost basis is $20.94 versus a current price of $28.69, so LEGN trades above its cost basis (+37.0%). Average unrealized P&L across tracked holders: 34%.

Sector positioning — Health Care

LEGN sits within the Health Care sector alongside 221 other tracked names. Compare whale ownership across peers:

How to use this page

Values are reported public positions from tracked 13F filers and disclosures — not real-time ownership totals. Open the live LEGN dashboard for price charts and cross-investor scans, or read the SEC 13F guide.

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 LEGN stock?

Whale Analyzer tracks 1 public institutional holders of LEGN with a combined reported value of $108.3M. See the holder table above for the largest tracked positions.

Which top funds are buying LEGN?

Tracked institutions were stable last quarter — 1 held. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.

How concentrated is LEGN ownership?

The top five tracked holders report 100.0% of aggregate ownership.

Is LEGN above or below the whale cost basis?

The aggregate tracked cost basis is $20.94 versus a current price of $28.69 (+37.0%).

What does 13F ownership mean for LEGN?

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