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

Role: EVP & GM, Util & Broadband
Signature: /s/ Diane E. Lazzaris, Attorney-In-Fact
Stock symbol: WCC
Transactions as of: Jul 2, 2021
Transactions value $: -$336,429
Form type: 4
Date filed: 7/7/2021, 04:53 PM
Next filing: Aug 16, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WCC	Common Stock	Options Exercise	$0	+7.46K	+124.59%	$0.00	13.4K	Jul 2, 2021	Direct	F1
transaction	WCC	Common Stock	Tax liability	-$336K	-3.24K	-24.12%	$103.74	10.2K	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	-7.46K	-30%	$0.00	17.4K	Jul 2, 2021	Common Stock	7.46K		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 24,860 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.