WCC

• Data center sales reached $1.5 billion, up ~45% YOY; total company backlog hit a record, up ~60% YOY.
• Adjusted diluted EPS of $4.57, up 35% YOY; GAAP diluted EPS of $4.23.
• Adjusted EBITDA margin of 7.3%, up 60 basis points YOY; operating margin of 5.7%, up 20 basis points.
• Company is raising its full-year 2026 outlook, citing exceptional first-half results and accelerating momentum.

2.02 Results of Operations and Financial Condition · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits

• Effective June 1, 2026, Schulz entered a consulting services agreement with WESCO as a non-employee consultant until December 31, 2026, unless extended.
• Under the consulting agreement, Schulz receives an hourly fee and his outstanding equity awards continue to vest per their terms until the agreement ends.
• Schulz remains subject to customary non-competition, non-solicitation, non-disparagement, and confidentiality covenants.
• At the May 28, 2026 Annual Meeting, all ten director nominees were elected, and stockholders approved executive compensation and ratified PwC as auditor.

5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 5.07 Submission of Matters to a Vote of Security Holders · 9.01 Financial Statements and Exhibits

• Data center sales reached $1.4 billion, up approximately 70% year-over-year, representing 24% of total sales.
• Adjusted diluted EPS was $3.37, up 52.5% year-over-year; reported diluted EPS was $3.11.
• Adjusted EBITDA margin expanded 60 basis points to 6.4%, and operating margin rose 30 basis points to 4.8%.
• The company raised its full-year 2026 outlook, citing an exceptional start to the year.

2.02 Results of Operations and Financial Condition · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits

• Net proceeds of approximately $1.48B will be used to redeem all outstanding 7.250% senior notes due 2028 and repay part of the ABL facility.
• The notes are unsecured, unsubordinated obligations guaranteed by WESCO International and Anixter Inc.
• Interest on both series is payable semi-annually starting October 15, 2026; maturities are April 15, 2031 and April 15, 2034.
• The notes include make-whole redemption provisions and change-of-control repurchase obligations at 101% of principal.

1.01 Entry into a Material Definitive Agreement · 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement · 9.01 Financial Statements and Exhibits

• WESCO International's subsidiary, WESCO Distribution, priced a private offering of $650 million 5.250% senior notes due 2031 and $850 million 5.500% senior notes due 2034.
• Net proceeds are estimated at approximately $1.48 billion and will be used to redeem all outstanding 7.250% senior notes due 2028 and repay a portion of the ABL Facility.
• The notes are unsecured, unsubordinated obligations guaranteed by WESCO International and Anixter Inc.
• Settlement is scheduled for February 27, 2026, subject to customary closing conditions.

8.01 Other Events · 9.01 Financial Statements and Exhibits

• Indraneel 'Neel' Dev became Executive Vice President and Chief Financial Officer on February 16, 2026.
• The transition date was mutually agreed and previously disclosed in a Form 8-K filed on February 10, 2026.

5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements

• Q4 adjusted EPS was $3.40, up 7.6% year-over-year; full-year adjusted EPS was $12.91, up 5.6%.
• Full-year 2026 outlook: 5-8% reported sales growth, adjusted EBITDA margin ~6.8% at mid-point, adjusted diluted EPS $14.50-$16.50, free cash flow $500-$800 million.
• Company plans to increase annual common stock dividend by over 10% to $2.00 per share.
• Record backlog up 19% year-over-year; data center sales reached $1.2 billion in Q4 and $4.3 billion for full year.

2.02 Results of Operations and Financial Condition · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits

• Indraneel 'Neel' Dev will join as EVP and CFO in February 2026, succeeding Schulz.
• Dev previously served as CFO of Congruex LLC and Lumen Technologies.
• Dev's compensation includes $800,000 base salary, sign-on cash bonus of $500,000, and RSU grants totaling $4.3 million.
• Schulz's retirement is not due to any disagreement with the company.

5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits