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Graham Holdings Co

CIK 104889 · last filed 2015-07-01

Graham Holdings Co is a corporate insider who has filed 1 SEC Form 4 insider transactions across 1 company since 2015. The most recent filing, for CABO, was dated Jul 1, 2015. The firm reports its address in Arlington, VA. 170 SEC filings were submitted jointly with DONALD GRAHAM.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$0

Companies

1

Total Filings

1

Lifetime Open-Market Net

$0

Filer Profile

Reported Address
1812 NORTH MOORE STREET
SUITE 2100
ARLINGTON, VA 22209
Phone
(703) 345-6300
State of Incorporation
DE
Formerly Known As
WASHINGTON POST CO (1994–2013)
Related Filers
DONALD GRAHAM — 170 joint filings, latest 2026-08-14
Timothy J O'Shaughnessy — 28 joint filings, latest 2026-08-14
ANN MCDANIEL — 27 joint filings, latest 2015-03-04
Katharine Weymouth — 21 joint filings, latest 2026-05-28
ANNE M MULCAHY — 20 joint filings, latest 2026-07-06
JOHN B MORSE JR — 19 joint filings, latest 2008-02-13
Andrew Stephen Rosen — 19 joint filings, latest 2025-01-06
G RICHARD WAGONER JR — 19 joint filings, latest 2026-07-06
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
CABO 10%+ Owner 0 $25.47 $0 $0 1 2015-07-01

Recent Filings

1 filing
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2015-07-01 CABO Other (J) −1,000 $0 EDGAR
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.