Graham Holdings Co Master Retirement Trust - Stock Holdings in 13F Filings (SEC)

Updated on March 15, 2026.

Based on 13F Filings filed with the SEC on February 13, 2026, for the 2025 Q4 period, Graham Holdings Co Master Retirement Trust held in its portfolio 2 assets valued at $750,426 (i.e. $750.43K).

The most valuable assets in the portfolio included: BERKSHIRE HATHAWAY INC DEL ($625.73K), and MARKEL GROUP INC ($124.70K),

The chart below shows the top 2 valuable assets, and the table below shows the top 2 valuable assets.

You can see similar for other investment managers.

Related Topics: SEC Topic List.

Data Source: SEC.

Top Valuable Stocks in Graham Holdings Co Master Retirement Trust Portfolio

BERKSHIRE HATHAWAY INC DEL

MARKEL GROUP INC

Graham Holdings Co Master Retirement Trust - Stock Holdings in 13F Filings (SEC)

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Name of Issuer	No. of Shares	Value ($)	Class
BERKSHIRE HATHAWAY INC DEL	829	625729	CL A
MARKEL GROUP INC	58008	124697	COM