X0508 4 2024-01-10 0 0000913142 BELDEN INC. BDC 0001585545 Zink Doug 1 NORTH BRENTWOOD BOULEVARD, 15TH FLOOR SAINT LOUIS MO 63105 0 1 0 0 VP and CAO 0 Common Stock 2024-01-10 5 J 0 E 56 66.27 A 6751 D Common Stock 831.6335 I By 401(k) Plan Shares acquired through the Belden Inc. 2021 Employee Stock Purchase Plan (the "Plan"). The Plan is broadly available to employees of Belden Inc. and its subsidiaries. Pursuant to the terms of the Plan, the purchase price is 85% of the lesser of (i) the price at the beginning of the offering period (July 1, 2023) or (ii) the price at the end of the offering period (December 31, 2023). Employees elect their level of participation and the purchases are funded via payroll deductions through the offering period. The resulting shares were delivered to participants on January 10, 2024. Represents the balance of shares of Belden Inc. common stock held in the Belden Retirement Savings Plan as of the date of this filing. /s/ Doug Zink 2024-01-12