Mark Chong

Insider

First SEC filing: March 11, 2020 · Latest: March 11, 2020

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 10 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

10 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 9, 2020	CDW	A	24,877	—	—	24,877 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 14, 2020	CDW	M	6,000	$51.70	$310,200	17,997 Direct	+50.01%	Acquired	159.9% (price as of 2026-08-19)
Feb. 14, 2020	CDW	S	6,000	$138.51	$831,060	11,997 Direct	-33.34%	Disposed	-3.0% (price as of 2026-08-19)
Feb. 14, 2020	CDW	M	6,000	—	—	2,607 Direct	-69.71%	Disposed	(price as of 2026-08-19)
Feb. 10, 2020	CDW	A	12,253	—	—	17,310 Direct	+242.30%	Acquired	(price as of 2026-08-19)
Feb. 10, 2020	CDW	F	5,313	$135.97	$722,409	11,997 Direct	-30.69%	Disposed	-1.2% (price as of 2026-08-19)
March 8, 2019	CDW	A	23,590	—	—	23,590 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 12, 2019	CDW	A	5,057	—	—	5,057 Direct	—	Acquired	(price as of 2026-08-19)
March 2, 2018	CDW	A	35,962	—	—	35,962 Direct	—	Acquired	(price as of 2026-08-19)
March 13, 2017	CDW	A	32,597	—	—	32,597 Direct	—	Acquired	(price as of 2026-08-19)
Dec. 1, 2016	CDW	A	8,607	—	—	8,607 Direct	—	Acquired	(price as of 2026-08-19)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
March 9, 2020	CDW	Employee Stock Option (Right to Buy)	Common Stock, par value $0.01 (24,877)	$98.21	March 9, 2030	24,877	Acquired
Feb. 14, 2020	CDW	Employee Stock Option (Right to Buy)	Common Stock, par value $0.01 (6,000)	$51.70	Nov. 28, 2026	6,000	Disposed
March 8, 2019	CDW	Employee Stock Option (Right to Buy)	Employee Stock Option (Right to Buy) (23,590)	$95.57	Feb. 25, 2029	23,590	Acquired
March 2, 2018	CDW	Employee Stock Option (Right to Buy)	Common Stock, par value $0.01 (35,962)	$73.49	Feb. 27, 2028	35,962	Acquired
March 13, 2017	CDW	Employee Stock Option (Right to Buy)	Common Stock, par value $0.01 (32,597)	$58.90	Feb. 28, 2027	32,597	Acquired
Dec. 1, 2016	CDW	Employee Stock Option (Right to Buy)	Common Stock, par value $0.01 (8,607)	$51.70	Nov. 28, 2026	8,607	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).