Witkowski Mark R

Insider

Chief Financial Officer

Trades at: CNM

30D 90D 1Y

Net shares · 365d

-200.0K

0 buy · 200.0K sell

Net value · 365d

-$12.5M

$0 in · $12.5M out

Sentiment · 365d

Net selling

0% buying · 100% selling

Open-market trades · 365d

0 buy · 200.0K 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

CNM Grant·A
Mar 12, 26

Chief Executive Officer

$0

131.4K sh

Own New
CNM Grant·A
Mar 12, 26

Chief Executive Officer

$0

18.4K sh

Own +56%
CNM Other·F
Mar 11, 26

Chief Executive Officer

$82.8K

1.7K sh · $49.16

Own -5%
CNM Other·F
Mar 10, 26

Chief Executive Officer

$46.3K

937 sh · $49.38

Own -3%
CNM Other·F
Mar 9, 26

Chief Executive Officer

$23.9K

478 sh · $49.96

Own -1%
CNM Exercise·C
Aug 18, 25

Chief Executive Officer · 10b5-1

$0

100.0K sh

Own New
CNM Other·J
Aug 18, 25

Chief Executive Officer · 10b5-1

$0

100.0K sh
CNM Other·J
Aug 18, 25

Chief Executive Officer · 10b5-1

$0

100.0K sh
CNM Exercise·C
Aug 18, 25

Chief Executive Officer · 10b5-1

$0

100.0K sh

Own +279%
CNM Sell·S
Aug 18, 25

Chief Executive Officer · 10b5-1

$6.4M

100.0K sh · $64.08

Own -74%
CNM Other·J
Jul 17, 25

Chief Executive Officer · 10b5-1

$0

100.0K sh
CNM Other·J
Jul 17, 25

Chief Executive Officer · 10b5-1

$0

100.0K sh
CNM Exercise·C
Jul 17, 25

Chief Executive Officer · 10b5-1

$0

100.0K sh

Own New
CNM Exercise·C
Jul 17, 25

Chief Executive Officer · 10b5-1

$0

100.0K sh

Own +279%
CNM Sell·S
Jul 17, 25

Chief Executive Officer · 10b5-1

$1.7M

27.7K sh · $61.63

Own -44%
CNM Sell·S
Jul 17, 25

Chief Executive Officer · 10b5-1

$4.4M

72.3K sh · $61.12

Own -53%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
Mar 12, 2026	CNM	Chief Executive Officer	Grant A	131.4K	New	—	$0
Mar 12, 2026	CNM	Chief Executive Officer	Grant A	18.4K	+56%	—	$0
Mar 11, 2026	CNM	Chief Executive Officer	Other F	1.7K	-5%	$49.16	$82.8K
Mar 10, 2026	CNM	Chief Executive Officer	Other F	937	-3%	$49.38	$46.3K
Mar 9, 2026	CNM	Chief Executive Officer	Other F	478	-1%	$49.96	$23.9K
Aug 18, 2025	CNM	Chief Executive Officer	Exercise C	100.0K	New	—	$0
Aug 18, 2025	CNM	Chief Executive Officer	Other J	100.0K	—	—	$0
Aug 18, 2025	CNM	Chief Executive Officer	Other J	100.0K	—	—	$0
Aug 18, 2025	CNM	Chief Executive Officer	Exercise C	100.0K	+279%	—	$0
Aug 18, 2025	CNM	Chief Executive Officer	Sell S	100.0K	-74%	$64.08	$6.4M
Jul 17, 2025	CNM	Chief Executive Officer	Other J	100.0K	—	—	$0
Jul 17, 2025	CNM	Chief Executive Officer	Other J	100.0K	—	—	$0
Jul 17, 2025	CNM	Chief Executive Officer	Exercise C	100.0K	New	—	$0
Jul 17, 2025	CNM	Chief Executive Officer	Exercise C	100.0K	+279%	—	$0
Jul 17, 2025	CNM	Chief Executive Officer	Sell S	27.7K	-44%	$61.63	$1.7M
Jul 17, 2025	CNM	Chief Executive Officer	Sell S	72.3K	-53%	$61.12	$4.4M

About Witkowski Mark R

This profile aggregates every SEC Form 4 insider transaction reported by Witkowski Mark R 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.