Whale Analyzer
MKL Institutional Holders and 13F Ownership
Compare 8 tracked holders of MKL, their reported positions and disclosed changes. Coverage is limited to the investors tracked by Whale Analyzer; these records do not establish all shareholders or current trades. Available original SEC filings for tracked 13F holders are linked below. Top tracked holders include Davis Advisors, Baillie Gifford & Co, Check Capital Management, and Giverny Capital.
Continue to the live MKL dashboardTop holders
| Investor | Reported value | Shares | Change | Report date |
|---|---|---|---|---|
| Davis Advisors 13F holdings | $794.4M | 406.8K | Increased | 2026-06-30 |
| Baillie Gifford & Co 13F holdings | $308.4M | 157.9K | Reduced | 2026-06-30 |
| Check Capital Management 13F holdings | $154.7M | 79.2K | Increased | 2026-06-30 |
| Giverny Capital 13F holdings | $60.3M | 30.9K | Reduced | 2026-06-30 |
| Greenlea Lane Capital 13F holdings | $39.7M | 20.3K | Reduced | 2026-06-30 |
| Gardner Russo & Quinn 13F holdings | $8.3M | 4.3K | Reduced | 2026-06-30 |
| National Pension Service 13F holdings | $5.0M | 2.6K | Reduced | 2026-06-30 |
| Horizon Kinetics Asset Management 13F holdings | $4.0M | 2.1K | Reduced | 2026-06-30 |
Original SEC filing sources
These recorded filings support the tracked 13F rows included in the aggregate reported values on this page. See each holder profile for source coverage and context for other disclosure types.
- Davis Advisors SEC filing (0001036325-26-000020) · report date 2026-06-30
- Baillie Gifford & Co SEC filing (0001088875-26-000057) · report date 2026-06-30
- Check Capital Management SEC filing (0001032814-26-000007) · report date 2026-06-30
- Giverny Capital SEC filing (0001641864-26-000010) · report date 2026-06-30
- Greenlea Lane Capital SEC filing (0001420506-26-001649) · report date 2026-06-30
- Gardner Russo & Quinn SEC filing (0000860643-26-000005) · report date 2026-06-30
- National Pension Service SEC filing (0001193125-26-347818) · report date 2026-06-30
- Horizon Kinetics Asset Management SEC filing (0001398344-26-014047) · report date 2026-06-30
Tracked-sample concentration
Reported position value for MKL is highly concentrated within this tracked-holder sample. These percentages are not market-wide ownership shares.
- Largest tracked holder: 57.8% of aggregate reported value in this sample
- Top 5 tracked holders: 98.7% of aggregate reported value in this sample
- Top 10 tracked holders: 100.0% of aggregate reported value in this sample
Whale activity this quarter
Across 8 tracked holders, 6 reduced, 2 increased. Net positioning is net selling.
- Davis Advisors ($794.4M) (▲ 6.1% qoq shares)
- Baillie Gifford & Co ($308.4M) (▼ 9.8% qoq shares)
- Check Capital Management ($154.7M) (▲ 3.0% qoq shares)
- Giverny Capital ($60.3M) (▼ 28.1% qoq shares)
- Greenlea Lane Capital ($39.7M) (▼ 10.0% qoq shares)
- Gardner Russo & Quinn ($8.3M) (▼ 13.9% qoq shares)
- National Pension Service ($5.0M) (▼ 87.5% qoq shares)
- Horizon Kinetics Asset Management ($4.0M) (▼ 1.8% qoq shares) · modeled avg cost estimate $965.95
Modeled cost estimate vs current price
The share-weighted modeled cost estimate across 1 covered tracked holders is $965.95 versus a current price of $1939.04, so MKL trades above that estimate (+100.7%). This model does not establish any filer's actual purchase price, unrealized gain, or investment return.
Sector positioning — Other
MKL sits within the Other sector alongside 1558 other tracked names. Compare reported positions across tracked peers:
How to use this page
Values are reported public positions from tracked 13F filers and disclosures — not real-time or market-wide ownership totals. Open the live MKL dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
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Learn more in Whale Analyzer Academy
Deepen your read on MKL with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns MKL stock?
Whale Analyzer tracks 8 public-disclosure holders of MKL with a combined reported value of $1.37B. See the holder table above for the largest tracked positions.
Which top funds are buying MKL?
Tracked holders were net selling last quarter — 6 reduced, 2 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is the tracked MKL sample?
The top five tracked holders account for 98.7% of aggregate reported value in this tracked sample. This is not a market-wide ownership percentage.
How does MKL compare with the modeled cost estimate?
The share-weighted modeled cost estimate across 1 covered tracked holders is $965.95 versus a current price of $1939.04 (+100.7%). It is not an actual purchase price, unrealized gain, or investment return.
What does 13F ownership mean for MKL?
These are historical reported positions from tracked filers, not real-time ownership or a complete shareholder register. Use the interactive MKL dashboard to explore them, or read our 13F Alpha Signals Guide.