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SEC Form 13F · Institutional holdings

Markel Corporation (Tom Gayner) — 13F portfolio holdings

Markel Corporation (Tom Gayner) reported 130 equity positions with a combined reported value of $13.13B in its Q2 2026 Form 13F filing. The ten largest of those positions account for 42.9%of the filing’s reported value.

Most recent period on file: 30 Jun 2026 (Q2 2026) · 9 quarters on file · 13F is due 45 days after quarter end

Reported value
$13.13B
13F positions, Q2 2026
Positions
130
Distinct holdings in the filing
Top 10 share
42.9%
Moderately concentrated
Quarters on file
9
Through Q2 2026

Ten largest reported positions

Top 10 of 130 positions by reported value · Q2 2026
Ten largest reported positions held by Markel Corporation (Tom Gayner) as of 30 Jun 2026
#SecurityCUSIPClassReported valueSharesWeight
1ALPHABET INC02079K107CAP STK CL C$971.6M2.75M7.40%
2BERKSHIRE HATHAWAY INC DEL084670108CL A$834.2M1K6.35%
3BERKSHIRE HATHAWAY INC DEL084670702CL B NEW$766.6M1.53M5.84%
4DEERE & CO244199105COM$556.9M878K4.24%
5BROOKFIELD CORP11271J107CL A LTD VT SH$556.8M13.07M4.24%
6AMAZON COM INC023135106COM$484.0M2.03M3.69%
7ANALOG DEVICES INC032654105COM$397.0M1000K3.02%
8GOLDMAN SACHS GROUP INC38141G104COM$363.4M359K2.77%
9APPLE INC037833100COM$355.1M1.23M2.70%
10CATERPILLAR INC149123101COM$350.0M329K2.67%

The full 130-position filing, quarter-over-quarter position changes, concentration analysis and cross-fund security search are in the Fund Tracker dashboard.

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Filing periods on file

9 quarters

Rock Group holds Markel Corporation (Tom Gayner)’s 13F filings for Q2 2026, Q1 2026, Q4 2025, Q3 2025, Q2 2025, Q1 2025, Q4 2024, Q3 2024, Q2 2024. Period-over-period comparison — positions added, exited and resized — is available in the dashboard.

Other institutions

Browse all 13F filers on file, or read the Fund Tracker documentation for what Form 13F does and does not disclose.

Source. Derived from SEC Form 13F-HR filings retrieved from EDGAR. Rock Group is not affiliated with, endorsed by, or acting on behalf of any institution or fund named on this page.

Timing. A 13F reports holdings as of the quarter end and is due 45 days later, so a position shown here can be several months old. It is a point-in-time snapshot and does not show trades made after the quarter closed. Filers may also amend earlier filings, which restates history — a figure that changes between visits is an amendment, not an error.

Not advice. This page is published for research and informational purposes only. It is not investment advice, not an offer or solicitation to buy or sell any security, and not a recommendation of any institution, fund or strategy. Figures are provided without warranty of accuracy or completeness — verify against the original filing before relying on any of them.