Jacob Maas

CIK: 0001655513

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)1 (9.1%)

Derivative conversions

Awards (A)5 (45.5%)

Compensation grants

Other (G, F, J, C, D, …)5 (45.5%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

GHC

Graham Holdings Co

Officer

Discretionary Trading P&L

Holdings

Transaction History (11 total)

GHC
Graham Holdings Co
Jan 16, 2026
Tax Payment(F)
Direct
377 shares at avg. $1150.50$434K
GHC
Graham Holdings Co
Jan 16, 2026
Award(A)
Direct
1K shares-
GHC
Graham Holdings Co
Oct 20, 2025
Award(A)
Direct
1K shares-
GHC
Graham Holdings Co
Oct 20, 2025
Tax Payment(F)
Direct
501 shares at avg. $987.72$495K
GHC
Graham Holdings Co
Aug 19, 2025
Tax Payment(F)
Direct
1.8K shares at avg. $1071.80$1.9M
GHC
Graham Holdings Co
Aug 19, 2025
Exercise(M)
Direct
2K shares at avg. $804.80$1.6M
GHC
Graham Holdings Co
Jan 27, 2025
Award(A)
Direct
1K shares-
GHC
Graham Holdings Co
Jan 27, 2025
Tax Payment(F)
Direct
438 shares at avg. $918.26$402K
GHC
Graham Holdings Co
Jan 2, 2025
Award(A)
Direct
430 shares-
GHC
Graham Holdings Co
Jan 2, 2025
Tax Payment(F)
Direct
257 shares at avg. $871.87$224K
GHC
Graham Holdings Co
Nov 5, 2024
Award(A)
Direct
1K shares-

		Type	Shares	Price		Ownership
Jan 16, 2026	GHC Graham Holdings Co	Tax Payment(F)	377	$1150.50	$433,739	Direct
Jan 16, 2026	GHC Graham Holdings Co	Award(A)	1,000	-	$0	Direct
Oct 20, 2025	GHC Graham Holdings Co	Award(A)	1,000	-	-	Direct
Oct 20, 2025	GHC Graham Holdings Co	Tax Payment(F)	501	$987.72	$494,848	Direct
Aug 19, 2025	GHC Graham Holdings Co	Tax Payment(F)	1,752	$1071.80	$1,877,794	Direct
Aug 19, 2025	GHC Graham Holdings Co	Exercise(M)	2,000	$804.80	$1,609,600	Direct
Jan 27, 2025	GHC Graham Holdings Co	Award(A)	1,000	-	$0	Direct
Jan 27, 2025	GHC Graham Holdings Co	Tax Payment(F)	438	$918.26	$402,198	Direct
Jan 2, 2025	GHC Graham Holdings Co	Award(A)	430	-	$0	Direct
Jan 2, 2025	GHC Graham Holdings Co	Tax Payment(F)	257	$871.87	$224,071	Direct
Nov 5, 2024	GHC Graham Holdings Co	Award(A)	1,000	-	$0	Direct

1-11 of 11 transactions

About Maas, Jacob

Maas, Jacob (SEC CIK 0001655513) files insider reports with the SEC as Executive VP of Graham Holdings Co (GHC).

Signal8 holds 6 ownership filings by Maas, Jacob, all Form 4s, filed between Nov 8, 2024 and Jan 21, 2026. Those filings report 11 transactions, from Nov 5, 2024 to Jan 16, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Maas, Jacob's filings is in ARLINGTON, VA.

Recent filings by Maas, Jacob

Jan 16, 2026: Tax withholding of GHC shares (Form 4, code F).
Jan 16, 2026: Grant or award of GHC shares (Form 4, code A).
Oct 20, 2025: Grant or award of GHC shares (Form 4, code A).
Oct 20, 2025: Tax withholding of GHC shares (Form 4, code F).
Aug 19, 2025: Tax withholding of GHC shares (Form 4, code F).

Other insiders filing for Graham Holdings Co (GHC)

WAGONER G RICHARD JR, Director
MULCAHY ANNE M, Director
Markell Jack A., Director
Davis Christopher C, Director
CONLEY DANIELLE Y., Director
O'Shaughnessy Timothy J, President and CEO

How to read Form 4 transaction codes