GHC insider buying and SEC filings, explained
Graham Holdings Co · CIK 104889
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- NYSE
- Industry (SIC)
- Services-Educational Services
- State of incorporation
- DE
- Fiscal year end
- Dec 31
- Former names
- WASHINGTON POST CO
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$7K
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Jul 30, 2025 | Sale | Tony Allen (Director) sold 7 shares at $942.89 ($7K). Holdings down 47% to 8 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 10, 2026 |
31 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
| Filed | Items | Tag | Source |
|---|---|---|---|
| Oct 29, 2026, 8:31 AM ET 8-K | Earnings released (Item 2.02) | SEC filing |
Red flags are objective triggers only: the item or form filed, never an opinion.
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