Graham Holdings Co Master Retirement Trust

Institutional

CIK 0001912699

$706,369

Reported AUM

Positions

Q1 2026

Period

2026-05-15

Filed

The Brief · Graham Holdings Co Master Retirement Trust · Q1 2026

AI · grounded in 13F

Graham Holdings Co Master Retirement Trust reported no changes to its 13F holdings for 2026-03-31 relative to 2025-12-31.

Portfolio · Q1 2026

Top holdings

#	Stock	Issuer	Price	Day %	1Y Gr.	5Y Gr.	Value	% of book	Δ shares (QoQ)	Status
1	BRK/A	BERKSHIRE HATHAWAY INC DEL	—	—	—	—	$595K	84.28%	—	HELD
2	MKL	MARKEL GROUP INC	$2015.00	-1.19%	4.41%	58.63%	$111K	15.72%	—	HELD

Source: SEC EDGAR · accession 0001628280-26-035588. 13F discloses long positions only — shorts, foreign equities, and options are excluded.