Daniel J. Castillo - 02 Mar 2026 Form 4 Insider Report for WESCO INTERNATIONAL INC (WCC)

Role
EVP & GM, EES
Signature
/s/ Michele Nelson, as Attorney-in-Fact
Issuer symbol
WCC
Transactions as of
02 Mar 2026
Net transactions value
$0
Form type
4
Filing time
03 Mar 2026, 20:14:25 UTC
Previous filing
05 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Castillo Daniel J EVP & GM, EES 225 WEST STATION SQUARE DRIVE, SUITE 700, PITTSBURGH /s/ Michele Nelson, as Attorney-in-Fact 03 Mar 2026 0001535412

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WCC Common Stock Award $0 +1,606 +13% $0.000000 13,900 02 Mar 2026 Direct F1

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 Stock Options (Right to Buy) Award $0 +3,827 $0.000000 3,827 02 Mar 2026 Common Stock 3,827 $295.84 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents a grant of RSUs. Each RSU represents a contingent right to acquire one share of Issuer's common stock. The RSUs vest in three equal installments beginning on the first anniversary of the date of grant.
F2 The stock options become exercisable in three equal annual installments beginning on the first anniversary of the date of grant.