Diane Lazzaris - Aug 26, 2025 Form 4 Insider Report for WESCO INTERNATIONAL INC (WCC)

Role
EVP and General Counsel
Signature
/s/ Michele Nelson, as Attorney-in-Fact
Stock symbol
WCC
Transactions as of
Aug 26, 2025
Transactions value $
-$2,426,134
Form type
4
Date filed
8/28/2025, 04:44 PM
Previous filing
Jul 2, 2025
Next filing
Oct 2, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Lazzaris Diane EVP and General Counsel 225 WEST STATION SQUARE DRIVE, SUITE 700, PITTSBURGH /s/ Michele Nelson, as Attorney-in-Fact 2025-08-28 0001428491

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WCC Common Stock Sale -$469K -2.08K -3.7% $225.89 54K Aug 26, 2025 Direct F1
transaction WCC Common Stock Sale -$228K -1.01K -1.86% $226.92 53K Aug 26, 2025 Direct F2
transaction WCC Common Stock Sale -$17.8K -78 -0.15% $227.83 52.9K Aug 26, 2025 Direct F3
transaction WCC Common Stock Options Exercise $542K +9.93K +18.76% $54.64 62.8K Aug 27, 2025 Direct
transaction WCC Common Stock Disposed to Issuer -$543K -2.39K -3.8% $227.19 60.5K Aug 27, 2025 Direct
transaction WCC Common Stock Tax liability -$745K -3.28K -5.42% $227.19 57.2K Aug 27, 2025 Direct
transaction WCC Common Stock Sale -$523K -2.31K -4.04% $226.39 54.9K Aug 28, 2025 Direct F4
transaction WCC Common Stock Sale -$444K -1.95K -3.56% $227.23 52.9K Aug 28, 2025 Direct F5

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 Appreciation Rights Options Exercise $0 -9.93K -100% $0.00 0 Aug 27, 2025 Common Stock 9.93K $54.64 Direct F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents weighted average sale price. These shares were sold in multiple transactions at prices ranging from $225.40 - $226.26. Upon request by the SEC, the Issuer or a stockholder of the Issuer, complete information regarding the number of shares sold at each price within the range will be provided.
F2 Represents weighted average sale price. These shares were sold in multiple transactions at prices ranging from $226.46 - $227.40. Upon request by the SEC, the Issuer or a stockholder of the Issuer, complete information regarding the number of shares sold at each price within the range will be provided.
F3 Represents weighted average sale price. These shares were sold in multiple transactions at prices ranging from $227.81 - $227.85. Upon request by the SEC, the Issuer or a stockholder of the Issuer, complete information regarding the number of shares sold at each price within the range will be provided.
F4 Represents weighted average sale price. These shares were sold in multiple transactions at prices ranging from $225.86 - $226.83. Upon request by the SEC, the Issuer or a stockholder of the Issuer, complete information regarding the number of shares sold at each price within the range will be provided.
F5 Represents weighted average sale price. These shares were sold in multiple transactions at prices ranging from $226.88 - 227.71. Upon request by the SEC, the Issuer or a stockholder of the Issuer, complete information regarding the number of shares sold at each price within the range will be provided.
F6 The Stock Appreciation Rights became exercisable in three (3) equal, annual installments beginning on the first anniversary of the February 13, 2019 grant date.