Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in MKL held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 711K | $1.36B | -0.1% | 5.679% | 0.02% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 545K | $1.04B | — | 4.351% | 0.03% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 524K | $1.00B | — | 4.189% | 0.05% |
| 4 | PRINCIPAL FINANCIAL GROUP INC | 402K | $769.3M | -24.6% | 3.211% | 0.41% |
| 5 | DAVIS SELECTED ADVISERS | 383K | $734.0M | -7.6% | 3.064% | 3.37% |
| 6 | Select Equity Group, L.P. | 378K | $722.8M | -11.7% | 3.018% | 3.97% |
| 7 | MORGAN STANLEY | 357K | $683.5M | -8.9% | 2.854% | 0.04% |
| 8 | STATE STREET CORP | 307K | $587.6M | +0.7% | 2.453% | 0.02% |
| 9 | Boston Partners | 251K | $480.4M | -4.3% | 2.006% | 0.50% |
| 10 | KEMPEN CAPITAL MANAGEMENT N.V. | 226K | $432.9M | +10.4% | 1.807% | 3.80% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 222K | $423.1M | -1.5% | 1.772% | 0.03% |
| 12 | DAVENPORT & Co LLC | 207K | $395.5M | -1.4% | 1.656% | 2.16% |
| 13 | BAILLIE GIFFORD & CO | 175K | $335.1M | -7.1% | 1.399% | 0.34% |
| 14 | DIMENSIONAL FUND ADVISORS LP | 137K | $262.2M | +4.9% | 1.095% | 0.05% |
| 15 | BANK OF AMERICA CORP /DE/ | 136K | $260.5M | -7.6% | 1.087% | 0.02% |
| 16 | WELLINGTON MANAGEMENT GROUP LLP | 107K | $204.2M | -4.7% | 0.852% | 0.04% |
| 17 | Bank Julius Baer & Co. Ltd, Zurich | 97K | $185.6M | -0.5% | 0.778% | 0.56% |
| 18 | Madison Avenue Partners, LP | 88K | $168.2M | 0.0% | 0.702% | 7.32% |
| 19 | FENIMORE ASSET MANAGEMENT INC | 87K | $165.8M | -1.9% | 0.692% | 3.70% |
| 20 | NORTHERN TRUST CORP | 86K | $164.0M | +1.2% | 0.684% | 0.02% |
| 21 | Douglass Winthrop Advisors, LLC | 80K | $154.1M | -1.8% | 0.643% | 2.82% |
| 22 | Polar Capital Holdings Plc | 80K | $153.1M | +3.9% | 0.639% | 0.54% |
| 23 | FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ | 80K | $152.7M | +0.1% | 0.638% | 0.84% |
| 24 | VANGUARD FIDUCIARY TRUST CO | 78K | $149.3M | — | 0.623% | 0.04% |
| 25 | UBS ASSET MANAGEMENT AMERICAS INC | 78K | $148.9M | +0.2% | 0.622% | 0.03% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in MKL — a direct measure of their conviction.
Filings activity in MKL during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 909 | +1.0% | 75.82% | 11.78 pp | $17.51B | 13% |
| Q4 2025 | 900 | +7.9% | 87.60% | +9.05 pp | $20.24B | +12% |
| Q3 2025 | 834 | +0.0% | 78.55% | 4.53 pp | $18.15B | 5.4% |
| Q2 2025 | 834 | +1.1% | 83.08% | +5.88 pp | $19.19B | +7.6% |
| Q1 2025 | 825 | +3.0% | 77.20% | +8.66 pp | $17.83B | +13% |
| Q4 2024 | 801 | +3.6% | 68.54% | +6.62 pp | $15.83B | +11% |
| Q3 2024 | 773 | 2.8% | 61.92% | 22.89 pp | $14.30B | 27% |
| Q2 2024 | 795 | — | 84.81% | — | $19.59B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Latest Form 4 transactions by company officers and directors. Insider buys are widely viewed as the highest-conviction signal because executives are risking personal capital.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| May 6, 2026 | Leopold Diane | Buy | 100 | $1792.61 | $179K |
| May 1, 2026 | Puckett A. Lynne | Buy | 57 | $1795.53 | $102K |
Quick answers to the most common questions about buying MKL stock.
Based on Q1 2026 13F filings, institutional ownership of Markel Corporation stands at 75.8%, held across 909 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of MKL, with approximately 710,606 shares worth $1.36B as of Q1 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of MKL.
Our composite Smart Money Score for MKL is 28 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
117 institutions opened new positions in MKL during Q1 2026, while 108 fully exited. 127 added to existing positions and 662 trimmed.
MKL institutional ownership fell by 11.78 percentage points quarter-over-quarter, with a net change of +9 holders.
The top 10 institutions account for 44.6% of all reported 13F value in MKL, and the top 25 account for 63.6%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Markel Corporation (MKL) Institutional Ownership