Whale Analyzer
Top public holders · 13F and disclosure aggregation

Who owns ROP? 13F holders and whale ownership

ROP is tracked across public portfolios in Whale Analyzer. This page answers who owns ROP, which top funds are buying ROP, aggregate disclosed value, and recent position changes based on public data. Dodge & Cox is the largest reported holder at $1.18B; the top five funds control 100.0% of reported ownership; institutions were net buying last quarter (2 increased, 0 reduced); the stock trades above the aggregate whale cost basis of $258.99. Top tracked holders include Dodge & Cox and Chuck Akre.

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NMS · latest quote
$338.31
+$8.05 (+2.4%)
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2Tracked holders
$1.63BAggregate reported value
2026-05-21Page updated
1 increased, 1 newRecent changes

Top holders

InvestorReported valueSharesChange
Dodge & Cox 13F portfolio
Dodge & Cox holdings
$1.18B3.3MNew
Chuck Akre 13F portfolio
Akre Capital Management holdings
$444.9M1.3MIncreased

Ownership concentration

Reported ownership of ROP is highly concentrated across tracked institutions.

Whale activity this quarter

Across 2 tracked institutions, 2 increased. Net positioning is net buying.

Whale cost basis vs current price

The aggregate tracked cost basis is $258.99 versus a current price of $338.31, so ROP trades above its cost basis (+30.6%). Average unrealized P&L across tracked holders: 860%.

Sector positioning — Information Technology

ROP sits within the Information Technology sector alongside 131 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 ROP 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 ROP with these Whale Analyzer Academy guides:

Frequently asked questions

Who owns ROP stock?

Whale Analyzer tracks 2 public institutional holders of ROP with a combined reported value of $1.63B. See the holder table above for the largest tracked positions.

Which top funds are buying ROP?

Tracked institutions were net buying last quarter — 2 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.

How concentrated is ROP ownership?

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

Is ROP above or below the whale cost basis?

The aggregate tracked cost basis is $258.99 versus a current price of $338.31 (+30.6%).

What does 13F ownership mean for ROP?

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