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Thomas Gayner

Net selling

Markel Group Inc. — managed by Thomas Gayner; US equity positions disclosed quarterly via SEC 13F

Data as of 2026-06-30 (filed 2026-07-31) · Source: SEC EDGAR

Portfolio value$12.51B (+5%)
Holdings78 (−51)
Top holdingAlphabet Inc
Below band2

New

0

Added

17

Exited

51

By what price implies: 37 demand a demanding growth rate, 11 modest.

13F × valuation

Valuation posture

Of 39 valued US positions, 2 trade below a conservative value band (as of 2026-08-25):

SEC 13F · latest filing

Holdings

Showing top 25 of 78 positions

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Portfolio overview

Markel Group Inc.'s most recent 13F filing, for the quarter ended 2026-06-30, reports 78 positions worth $12.51B. The top 5 holdings represent 29% of that value, a broadly diversified portfolio.

The single largest position is Alphabet Inc at 7.8% of the portfolio, followed by Berkshire Hathaway Inc at 6.7% and Berkshire Hathaway Inc at 6.1%.

Against the prior quarter, Thomas Gayner opened 0 new positions, exited 51, added to 17, and trimmed 2. The most notable sale was the full exit from Comcast Corp.

Across all 8 quarters on file, Alphabet Inc has appeared in every filing, as has Berkshire Hathaway Inc. Alphabet Inc currently ranks first by value.

A 13F is filed roughly 45 days after quarter-end and covers only long positions in US-listed equities, so it is a lagging and partial view of the portfolio. Source: SEC EDGAR.

Thomas Gayner has no positions in the strike zone right now. Browse the whole market by value band

Sources· SEC EDGAR 13F as of 2026-06-30 · filed 2026-07-31

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