Filed: 8/14/2026ACC: 0001628280-26-057130
📋 What this filing means
GRAHAM HOLDINGS CO filed this quarterly 13F‑HR report disclosing 6 equity positions with a total reported market value of $1.08M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
6
Positions
$1.08M
Total AUM (reported)
5.11M
Total Shares
Allocation by class
CAP STK CL C$347.1K32.0%
CL A$316.0K29.2%
CL B NEW$241.1K22.3%
COM$134.3K12.4%
COM CL A$44.6K4.1%
Portfolio Concentration
Top 3$904.2K83.5%
4–10$178.9K16.5%
Top 3 weight
83.5%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 5.11M
Sole
Full voting authority
5.11M
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:
ALPHABET INC
SOLEShares982.25K
TypeSH
Market value$347.1K
32.04%
Sole
982.25K
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares422.00
TypeSH
Market value$316.0K
29.18%
Sole
422.00
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares481.92K
TypeSH
Market value$241.1K
22.26%
Sole
481.92K
Shared
0.00
None
0.00
MARKEL GROUP INC
SOLEShares63.79K
TypeSH
Market value$124.6K
11.50%
Sole
63.79K
Shared
0.00
None
0.00
PUBMATIC INC
SOLEShares3.40M
TypeSH
Market value$44.6K
4.12%
Sole
3.40M
Shared
0.00
None
0.00
CABLE ONE INC
SOLEShares182.44K
TypeSH
Market value$9.7K
0.89%
Sole
182.44K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
ALPHABET INCSOLE | CAP STK CL C | 982.25K | SH | $347.1K 32.04% | 982.25K | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL A | 422.00 | SH | $316.0K 29.18% | 422.00 | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL B NEW | 481.92K | SH | $241.1K 22.26% | 481.92K | 0.00 | 0.00 |
MARKEL GROUP INCSOLE | COM | 63.79K | SH | $124.6K 11.50% | 63.79K | 0.00 | 0.00 |
PUBMATIC INCSOLE | COM CL A | 3.40M | SH | $44.6K 4.12% | 3.40M | 0.00 | 0.00 |
CABLE ONE INCSOLE | COM | 182.44K | SH | $9.7K 0.89% | 182.44K | 0.00 | 0.00 |