Mark W Begor

Insider

CEO

Trades at: EFX

30D 90D 1Y

Net shares · 90d

-37.8K

0 buy · 37.8K sell

Net value · 90d

-$6.5M

$0 in · $6.5M out

Sentiment · 90d

Net selling

0% buying · 100% selling

Open-market trades · 90d

0 buy · 37.8K sell

Net buy / sell volume (all companies)

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Show open-market only

EFX Exercise·M
Apr 24, 26

CEO · 10b5-1

$4.2M

37.8K sh · $112.46

Own +100%
EFX Sell·S
Apr 24, 26

CEO · 10b5-1

$3.5M

20.5K sh · $172.46

Own -7%
EFX Sell·S
Apr 24, 26

CEO · 10b5-1

$1.9M

10.9K sh · $171.57

Own -4%
EFX Sell·S
Apr 24, 26

CEO · 10b5-1

$807.8K

4.7K sh · $173.39

Own -2%
EFX Sell·S
Apr 24, 26

CEO · 10b5-1

$299.3K

1.7K sh · $174.32

Own -1%
EFX Exercise·M
Apr 24, 26

CEO · 10b5-1

$4.2M

37.8K sh · $112.46

Own +14%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
Apr 24, 2026	EFX	CEO	Exercise M	37.8K	+100%	$112.46	$4.2M
Apr 24, 2026	EFX	CEO	Sell S	20.5K	-7%	$172.46	$3.5M
Apr 24, 2026	EFX	CEO	Sell S	10.9K	-4%	$171.57	$1.9M
Apr 24, 2026	EFX	CEO	Sell S	4.7K	-2%	$173.39	$807.8K
Apr 24, 2026	EFX	CEO	Sell S	1.7K	-1%	$174.32	$299.3K
Apr 24, 2026	EFX	CEO	Exercise M	37.8K	+14%	$112.46	$4.2M

About Mark W Begor

This profile aggregates every SEC Form 4 insider transaction reported by Mark W Begor across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.