GHC · Insider Trading

GRAHAM HOLDINGS COMPANY

Every open-market purchase and sale reported by GHC officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
1
code S
Reporting Insiders
16
current holders
GHC — Recent Form 4 Transactions (latest 2026-10-02)
FiledInsiderRole TypeSharesValue
2026-10-02 Jack A. Markell Director A +7 +$7.97K
2026-10-02 Anne M Mulcahy Director A +21 +$23.92K
2026-10-02 G Richard Wagoner Jr Director A +21 +$23.92K
2026-10-02 Danielle Y. Conley Director A +19 +$21.64K
2026-10-02 Christopher C Davis Director A +24 +$27.34K
2026-08-31 Jacob Maas Executive VP MIXED +499 −$580.77K
2026-08-14 Donald Graham Director J −12,633 deriv. —
2026-08-14 Timothy J O'Shaughnessy President and CEO J −4,211 —
2026-08-14 Laura O'Shaughnessy 10%+ Owner J −4,211 —
2026-07-06 Jack A. Markell Director A +7 +$8.13K
2026-07-06 Christopher C Davis Director A +23 +$26.71K
2026-07-06 Anne M Mulcahy Director A +21 +$24.38K
2026-07-06 Danielle Y. Conley Director A +19 +$22.06K
2026-07-06 G Richard Wagoner Jr Director A +21 +$24.38K
2026-05-28 Timothy J O'Shaughnessy President and CEO J −6,000 —
2026-05-28 Katharine Weymouth Director J +6,000 —
2026-05-28 Laura O'Shaughnessy 10%+ Owner J −6,000 —
2026-04-02 Danielle Y. Conley Director A +21 +$22.30K
2026-04-02 Christopher C Davis Director A +25 +$26.54K
2026-04-02 Jack A. Markell Director A +8 +$8.49K
2026-04-02 Anne M Mulcahy Director A +23 +$24.42K
2026-04-02 G Richard Wagoner Jr Director A +23 +$24.42K
2026-03-10 Tony Allen Director Sell −7 −$6.60K
2026-01-21 Jacob Maas Executive VP MIXED +623 −$433.74K
2026-01-05 Danielle Y. Conley Director A +20 +$21.82K
2026-01-05 Christopher C Davis Director A +25 +$27.28K
2026-01-05 Jack A. Markell Director A +8 +$8.73K
2026-01-05 Anne M Mulcahy Director A +22 +$24.01K
2026-01-05 G Richard Wagoner Jr Director A +22 +$24.01K
2025-12-29 Katharine Weymouth Director J — —
2025-11-13 Timothy J O'Shaughnessy President and CEO MIXED +743 −$810.72K
2025-11-13 Laura O'Shaughnessy 10%+ Owner MIXED +743 −$810.72K
2025-10-22 Jacob Maas Executive VP MIXED +499 −$494.85K
2025-10-09 Laura O'Shaughnessy 10%+ Owner J −2,800 —
2025-10-09 Timothy J O'Shaughnessy President and CEO J −2,800 —
2025-10-02 Danielle Y. Conley Director A +19 +$22.14K
2025-10-02 Christopher C Davis Director A +23 +$26.80K
2025-10-02 Jack A. Markell Director A +7 +$8.16K
2025-10-02 Anne M Mulcahy Director A +21 +$24.47K
2025-10-02 G Richard Wagoner Jr Director A +21 +$24.47K
2025-09-30 Timothy J O'Shaughnessy President and CEO MIXED +1,012 −$1.21M
2025-09-30 Laura O'Shaughnessy 10%+ Owner MIXED +1,012 −$1.21M
2025-08-22 Laura O'Shaughnessy 10%+ Owner MIXED +702 −$755.33K
2025-08-22 Timothy J O'Shaughnessy President and CEO MIXED +702 −$755.33K
2025-08-21 Jacob Maas Executive VP MIXED +248 −$268.19K
2025-07-02 Jack A. Markell Director A +9 +$8.59K
2025-07-02 Christopher C Davis Director A +28 +$26.73K
2025-07-02 G Richard Wagoner Jr Director A +26 +$24.82K
2025-07-02 Danielle Y. Conley Director A +23 +$21.95K
2025-07-02 Anne M Mulcahy Director A +26 +$24.82K
GHC — Current Insider Holders
InsiderRole Shares HeldValue
Andrew Stephen Rosen Executive Vice President 40,773 $47.64M
Timothy J O'Shaughnessy President and CEO 22,878 $26.73M
Laura O'Shaughnessy 10%+ Owner 22,878 $26.73M
Katharine Weymouth Director 7,615 $8.90M
Jacob Maas Executive VP 7,156 $8.36M
Christopher C Davis Director 5,638 $6.59M
Nicole Marie Maddrey Sr. VP-GC & Secretary 4,223 $4.93M
Wallace R. Cooney Chief Financial Officer 3,746 $4.38M
G Richard Wagoner Jr Director 2,704 $3.16M
Sandra M. Stonesifer VP, Chief HR Officer 1,322 $1.54M
Anne M Mulcahy Director 1,026 $1.20M
Marcel A. Snyman VP-Chief Accounting Officer 685 $800.43K
Danielle Y. Conley Director 480 $560.88K
Jack A. Markell Director 165 $192.80K
Donald Graham Director 60 $70.11K
Tony Allen Director 8 $9.35K
GHC Insider Trading FAQ
Who are the insiders at GHC?
16 officers, directors and 10%+ beneficial owners currently report holdings in GHC via SEC Form 4.
Are GHC insiders buying or selling?
Across the 50 most recent Form 4 filings for GHC, 0 were open-market purchases (code P) and 1 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is GHC insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent GHC filing is dated 2026-10-02.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the GHC quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.