X0508 4 2024-02-15 0 0000913142 BELDEN INC. BDC 0001967061 Lieser Brian C/O BELDEN INC. 1 N. BRENTWOOD BLVD., 15TH FLOOR SAINT LOUIS MO 63105 0 1 0 0 EVP, Indust. Automation Solut. 0 Common Stock 2024-02-15 4 M 0 570 72.57 A 17901 D Common Stock 2024-02-15 4 D 0 528 84.535 D 17373 D Common Stock 2024-02-16 4 F 0 653 84.185 D 16720 D Common Stock 205.2373 I By 401(k) Plan Stock Appreciation Rights 72.57 2024-02-15 4 M 0 570 0.00 D 2015-03-04 2024-03-04 Common Stock 570 0 D This represents the difference between the number of SARs exercised (570) and the number of shares issued as a result of the exercise (42). The number of shares to be issued under a SAR exercise is determined by multiplying the number of SARs being exercised by the difference between the FMV on the date of exercise ($84.535) and the exercise price ($72.57). Additional shares are then withheld to satisfy the Company's tax withholding obligations. Shares withheld for tax purposes related to February 16, 2021 restricted stock unit grant that vested on February 16, 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/ Brian E. Anderson, attorney-in-fact for Brian Lieser 2024-02-20