Nelson John Squires III - Jul 1, 2022 Form 4 Insider Report for WESCO INTERNATIONAL INC (WCC)

Role: EVP & GM, E&ES
Signature: /s/ Michele Nelson, as Attorney-in-Fact
Stock symbol: WCC
Transactions as of: Jul 1, 2022
Transactions value $: -$647,997
Form type: 4
Date filed: 7/6/2022, 05:09 PM
Previous filing: Feb 22, 2022
Next filing: Oct 4, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WCC	Common Stock	Options Exercise	$0	+14K	+59%	$0.00	37.7K	Jul 1, 2022	Direct	F1
transaction	WCC	Common Stock	Tax liability	-$648K	-6.12K	-16.25%	$105.83	31.6K	Jul 1, 2022	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	-14K	-42.86%	$0.00	18.6K	Jul 1, 2022	Common Stock	14K		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 46,613 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.