InsiderTrades

Form 4 for GHC Graham Holdings Co

Accepted 2026-08-14 16:18:16 ET · period of report 2026-08-13 · accession 0000950157-26-000904 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-08-14 16:18 2026-08-13 GHC O'Shaughnessy Timothy J Pres, CEO, Dir J - Other — -4,211 22.9K -16% —
DMI 2026-08-14 16:18 2026-08-13 GHC O'Shaughnessy Timothy J Pres, CEO, Dir J - Other — +8,422 19.9K +73% —

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Class B Common Stock 2026-08-13 J D 4,211 — 22,878 D — — (F1) Disposition of Class B shares in an exchange transaction for the equivalent number of Class A shares. (F3) N/A (F2) Includes 13 shares of Class B Common Stock held by the reporting person in his Graham Holdings Company 401(k) plan account.
2 Derivative Class A Common Stock 2026-08-13 J A 4,211 — 15,711 I Spouse — · — to — 4,211 Class B Common Stock (F4) Shares of Class A Common Stock are convertible into shares of Class B Common Stock at any time on a one-for-one basis and have no expiration date. (F5) Acquisition of Class A shares by the spouse of the reporting person in an exchange transaction for the equivalent number of Class B shares. (F3) N/A (F4) Shares of Class A Common Stock are convertible into shares of Class B Common Stock at any time on a one-for-one basis and have no expiration date. (F4) Shares of Class A Common Stock are convertible into shares of Class B Common Stock at any time on a one-for-one basis and have no expiration date.
3 Derivative Class A Common Stock 2026-08-13 J A 4,211 — 19,922 I Spouse — · — to — 4,211 Class B Common Stock (F4) Shares of Class A Common Stock are convertible into shares of Class B Common Stock at any time on a one-for-one basis and have no expiration date. (F6) Acquisition of Class A shares by the spouse of the reporting person from a distribution pursuant to the terms of a trust. (F3) N/A (F4) Shares of Class A Common Stock are convertible into shares of Class B Common Stock at any time on a one-for-one basis and have no expiration date. (F4) Shares of Class A Common Stock are convertible into shares of Class B Common Stock at any time on a one-for-one basis and have no expiration date.