Filed: 5/15/2026ACC: 0001628280-26-035583
📋 What this filing means
GRAHAM HOLDINGS CO filed this quarterly 13F‑HR report disclosing 6 equity positions with a total reported market value of $966.7K. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
6
Positions
$966.7K
Total AUM (reported)
5.10M
Total Shares
Allocation by class
CL A$303.1K31.3%
CAP STK CL C$282.2K29.2%
CL B NEW$230.9K23.9%
COM$122.7K12.7%
COM CL A$27.8K2.9%
Portfolio Concentration
Top 3$816.2K84.4%
4–10$150.5K15.6%
Top 3 weight
84.4%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 5.10M
Sole
Full voting authority
5.10M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole6
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings6
Rows:
BERKSHIRE HATHAWAY INC DEL
SOLEShares422.00
TypeSH
Market value$303.1K
31.35%
Sole
422.00
Shared
0.00
None
0.00
ALPHABET INC
SOLEShares983.71K
TypeSH
Market value$282.2K
29.19%
Sole
983.71K
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares481.92K
TypeSH
Market value$230.9K
23.89%
Sole
481.92K
Shared
0.00
None
0.00
MARKEL GROUP INC
SOLEShares55.43K
TypeSH
Market value$106.1K
10.97%
Sole
55.43K
Shared
0.00
None
0.00
PUBMATIC INC
SOLEShares3.40M
TypeSH
Market value$27.8K
2.88%
Sole
3.40M
Shared
0.00
None
0.00
CABLE ONE INC
SOLEShares182.44K
TypeSH
Market value$16.6K
1.72%
Sole
182.44K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
BERKSHIRE HATHAWAY INC DELSOLE | CL A | 422.00 | SH | $303.1K 31.35% | 422.00 | 0.00 | 0.00 |
ALPHABET INCSOLE | CAP STK CL C | 983.71K | SH | $282.2K 29.19% | 983.71K | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL B NEW | 481.92K | SH | $230.9K 23.89% | 481.92K | 0.00 | 0.00 |
MARKEL GROUP INCSOLE | COM | 55.43K | SH | $106.1K 10.97% | 55.43K | 0.00 | 0.00 |
PUBMATIC INCSOLE | COM CL A | 3.40M | SH | $27.8K 2.88% | 3.40M | 0.00 | 0.00 |
CABLE ONE INCSOLE | COM | 182.44K | SH | $16.6K 1.72% | 182.44K | 0.00 | 0.00 |