John Engel - Jul 2, 2021 Form 4 Insider Report for WESCO INTERNATIONAL INC (WCC)

Role: Chairman, President & CEO, Director
Signature: /s/ Diane E. Lazzaris, Attorney-In-Fact
Stock symbol: WCC
Transactions as of: Jul 2, 2021
Transactions value $: -$1,693,659
Form type: 4
Date filed: 7/7/2021, 04:51 PM
Previous filing: May 17, 2021
Next filing: Nov 12, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WCC	Common Stock	Options Exercise	$0	+37.3K	+20.57%	$0.00	219K	Jul 2, 2021	Direct	F1
transaction	WCC	Common Stock	Tax liability	-$1.69M	-16.3K	-7.47%	$103.74	202K	Jul 2, 2021	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	WCC	Restricted Stock Units	Options Exercise	$0	-37.3K	-30%	$0.00	87K	Jul 2, 2021	Common Stock	37.3K		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit ("RSU") represents a contingent right to acquire one share of Issuer's common stock.
F2	On July 2, 2020, the Reporting Person was granted 124,301 RSUs that vest as follows: 30% on each of the first and second anniversaries of the grant date and 40% on the third anniversary of the grant date.