// company-profile
Graham Holdings Co
GHCExchangeNYSESectorServices-Educational ServicesInc.DEFilings100Insiders16
// api This Graham Holdings Co insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
Mixed insider activity over the last 30 days: 0 purchases and 0 sales (0 transactions total).
// 90-day insight
Over the last 90 days, Graham Holdings Co insiders bought $106K across 5 transactions with no open-market sales.
- Most active insider: O'Shaughnessy Laura with 3 transactions totaling $0.
- Largest single purchase: $27K by Davis Christopher C on Apr 1, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Graham Holdings Co as of 2026-03-31
Total reported AUM
$2.56B
QoQ change
+4.0%
Reporting period
2026-03-31
#1
BlackRock, Inc.
CIK 2012383
$263.6M
249K shares
#2
Madison Avenue Partners, LP
CIK 1801265
$259.9M
246K shares
#3
DIMENSIONAL FUND ADVISORS LP
CIK 354204
$243.5M
230K shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 26, 2026 | O'Shaughnessy Laura | GHC | J | 400 | — | — |
| May 26, 2026 | Weymouth Katharine | GHC | J | 6,000 | — | — |
| May 26, 2026 | O'Shaughnessy Laura | GHC | J | 5,600 | — | — |
| May 26, 2026 | O'Shaughnessy Laura | GHC | J | 6,000 | — | — |
| May 26, 2026 | O'Shaughnessy Timothy J | GHC | J | 6,000 | — | — |
45 more transactions hidden
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