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13F-HR filed by Graham Holdings Co Master Retirement Trust

Graham Holdings Co Master Retirement Trust filed this 13F-HR for the quarter ended 2026-06-30, filed 2026-08-14, with 2 holding rows worth $734,087,000.

Accession
0001628280-26-057134
Filed
2026-08-14
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2026

A holdings report, 2 entries on the cover page, a total value of $734,087,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $734,087,000 with VALUE read as thousands, detected and multiplied, 13F file number 028-22321. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
BERKSHIRE HATHAWAY INC DEL084670108CL A829$620,797,000thousands, detected and multiplied
MARKELGROUPINC570535104STOK58,008$113,290,000thousands, detected and multiplied

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001628280-26-057134this filing2026-08-14acceptance time not in the bulk data set