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CIK 0000104889 · Large accelerated filer

Graham Holdings Co

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Ticker
GHC
Exchange
NYSE
Industry
Services-Educational Services
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
530182885
Phone
7033456300
Business address
1812 NORTH MOORE STREET, SUITE 2100, ARLINGTON, VA, 22209
Former names
WASHINGTON POST CO
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-05-26 O'Shaughnessy Laura 10% owner Other disposition −400 27,076
2026-05-26 O'Shaughnessy Laura 10% owner Other acquisition · Class A Common Stock +6,000 11,500
2026-05-26 Weymouth Katharine Director Other acquisition +6,000 7,615
2026-05-26 Weymouth Katharine Director Other disposition · Class A Common Stock −6,000 30,000
2026-05-26 O'Shaughnessy Timothy J President and CEO Other disposition −5,600 0
2026-05-26 O'Shaughnessy Timothy J President and CEO Other disposition −400 27,087
2026-05-26 O'Shaughnessy Timothy J President and CEO Other acquisition · Class A Common Stock +6,000 11,500
2026-04-01 WAGONER G RICHARD JR Director Grant or award +23 $1,061.70 $24K 1,533
2026-04-01 MULCAHY ANNE M Director Grant or award +23 $1,061.70 $24K 737
2026-04-01 Markell Jack A. Director Grant or award +8 $1,061.70 $8K 41
2026-04-01 Davis Christopher C Director Grant or award +25 $1,061.70 $27K 5,591
2026-04-01 CONLEY DANIELLE Y. Director Grant or award +21 $1,061.70 $22K 442
2026-01-16 Maas, Jacob Executive VP Grant or award +1,000 7,034
2026-01-16 Maas, Jacob Executive VP Shares withheld for taxes −377 $1,150.50 $434K 6,657
2026-01-02 WAGONER G RICHARD JR Director Grant or award +22 $1,091.18 $24K 1,510
2026-01-02 MULCAHY ANNE M Director Grant or award +22 $1,091.18 $24K 714
2026-01-02 Markell Jack A. Director Grant or award +8 $1,091.18 $9K 33
2026-01-02 Davis Christopher C Director Grant or award +25 $1,091.18 $27K 5,566
2026-01-02 CONLEY DANIELLE Y. Director Grant or award +20 $1,091.18 $22K 421
2025-12-29 Weymouth Katharine Director Other acquisition · Class A Common Stock +36,000 36,000

Page 2 of 18 · 349 trades