Who owns MAR? 13F holders and whale ownership
MAR is tracked across public portfolios in Whale Analyzer. This page answers who owns MAR, which top funds are buying MAR, aggregate disclosed value, and recent position changes based on public data. Terry Smith is the largest reported holder at $1.10B; the top five funds control 100.0% of reported ownership; institutions were net selling last quarter (1 increased, 1 reduced); the stock trades above the aggregate whale cost basis of $150.36. Top tracked holders include Terry Smith and Tom Gayner.
Continue to the live MAR dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Terry Smith 13F portfolio Fundsmith Equity Fund holdings | $1.10B | 3.4M | Reduced |
| Tom Gayner 13F portfolio Markel Group holdings | $30.7M | 93.8K | Increased |
Ownership concentration
Reported ownership of MAR is highly concentrated across tracked institutions.
- Single largest holder: 97.3% of reported ownership
- Top 5 holders: 100.0%
- Top 10 holders: 100.0%
Whale activity this quarter
Across 2 tracked institutions, 1 reduced, 1 increased. Net positioning is net selling.
- Terry Smith — Fundsmith Equity Fund ($1.10B) (▼ 15.3% qoq shares) · avg cost $150.36
- Tom Gayner — Markel Group ($30.7M) (▲ 4.5% qoq shares)
Whale cost basis vs current price
The aggregate tracked cost basis is $150.36 versus a current price of $377.31, so MAR trades above its cost basis (+150.9%). Average unrealized P&L across tracked holders: 146%.
Sector positioning — Consumer Discretionary
MAR sits within the Consumer Discretionary sector alongside 61 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 MAR dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
Related stock holder pages
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- GOOGL whale holders — ALPHABET INC
- PM whale holders — PHILIP MORRIS INTL INC
- IDXX whale holders — IDEXX LABS INC
- ADP whale holders — AUTOMATIC DATA PROCESSING IN
- MSFT whale holders — MICROSOFT CORP
Learn more in Whale Analyzer Academy
Deepen your read on MAR with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns MAR stock?
Whale Analyzer tracks 2 public institutional holders of MAR with a combined reported value of $1.13B. See the holder table above for the largest tracked positions.
Which top funds are buying MAR?
Tracked institutions were net selling last quarter — 1 reduced, 1 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is MAR ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is MAR above or below the whale cost basis?
The aggregate tracked cost basis is $150.36 versus a current price of $377.31 (+150.9%).
What does 13F ownership mean for MAR?
Use the interactive MAR dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.