X0508 4 2024-03-06 0 0000913142 BELDEN INC. BDC 0001781432 Chand Ashish C/O BELDEN INC. 1 N. BRENTWOOD BLVD., 15TH FLOOR SAINT LOUIS MO 63105 1 1 0 0 President and CEO 0 Common Stock 2024-03-06 4 M 0 537 72.57 A 83471 D Common Stock 2024-03-06 4 D 0 493 87.14 D 82978 D Common Stock 977.3295 I By 401(k) Plan Stock Appreciation Rights 72.57 2024-03-06 4 M 0 537 0.00 D 2015-03-04 2024-03-04 Common Stock 537 0 D This represents the difference between the number of SARs exercised (537) and the number of shares issued as a result of the exercise (44). 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 ($87.14) and the exercise price ($72.57). Additional shares are then withheld to satisfy the Company's tax withholding obligations. Represents the balance of shares of Belden Inc. common stock held in the Belden Retirement Savings Plan as of the date of this filing. Per the terms of the grant agreement, as amended, the stock appreciation rights were to be automatically exercised on the expiration date if the fair market value exceeded the grant price. Due to incorrect settings in the administrator's systems, the awards were initially cancelled. Once this was corrected, the exercise was executed on March 6, 2024. /s/ Brian E. Anderson, attorney-in-fact for Ashish Chand 2024-03-08