Whale Analyzer
Top public holders · 13F and disclosure aggregation

Who owns ARWR? 13F holders and whale ownership

ARWR is tracked across public portfolios in Whale Analyzer. This page answers who owns ARWR, which top funds are buying ARWR, aggregate disclosed value, and recent position changes based on public data. Baker Bros. Advisors is the largest reported holder at $125M; the top five funds control 100.0% of reported ownership; institutions were net selling last quarter (0 increased, 1 reduced); the stock trades above the aggregate whale cost basis of $16.48. Top tracked holders include Baker Bros. Advisors and Edgewood Management.

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NMS · latest quote
$78.89
-$2.93 (-3.6%)
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2Tracked holders
$126.5MAggregate reported value
2026-05-21Page updated
1 held, 1 reducedRecent changes

Top holders

InvestorReported valueSharesChange
Baker Bros. Advisors 13F portfolio
Baker Bros. Advisors holdings
$124.9M2.0MReduced
Edgewood Management 13F portfolio
Edgewood Management LLC holdings
$1.6M25.0KHeld

Ownership concentration

Reported ownership of ARWR is highly concentrated across tracked institutions.

Whale activity this quarter

Across 2 tracked institutions, 1 reduced, 1 held. Net positioning is net selling.

Whale cost basis vs current price

The aggregate tracked cost basis is $16.48 versus a current price of $78.89, so ARWR trades above its cost basis (+378.6%). Average unrealized P&L across tracked holders: 498%.

Sector positioning — Health Care

ARWR 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 ARWR 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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Learn more in Whale Analyzer Academy

Deepen your read on ARWR with these Whale Analyzer Academy guides:

Frequently asked questions

Who owns ARWR stock?

Whale Analyzer tracks 2 public institutional holders of ARWR with a combined reported value of $126.5M. See the holder table above for the largest tracked positions.

Which top funds are buying ARWR?

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

How concentrated is ARWR ownership?

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

Is ARWR above or below the whale cost basis?

The aggregate tracked cost basis is $16.48 versus a current price of $78.89 (+378.6%).

What does 13F ownership mean for ARWR?

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