X0609 4 2026-09-22 0000912093 VIAVI SOLUTIONS INC. VIAV 0002069810 Petrucci Anthony Michael false C/O VIAVI SOLUTIONS INC. 1445 SOUTH SPECTRUM BLVD, SUITE 102 CHANDLER AZ 85286 1 SVP, Chief Operations Officer 0 Common Stock 2026-09-22 4 M 0 18490 0 A 40161 D Common Stock 2026-09-22 4 F 0 5012 36.40 D 35149 D Market Stock Units 0 2026-09-22 4 M 0 18490 0 D Common Stock 18490 24655 D Market Stock Units 0 2026-09-22 4 A 0 10954 0 A Common Stock 10954 21909 D Each stock unit converts upon vesting into one share of common stock. These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the market stock award. The amount retained by the Company was not in excess of the amount of the tax liability. Shares reflect the vesting of the 1st tranche of market-leveraged stock units granted on August 28, 2025 at 150.00% of target based on our total stockholder return during the performance periods as stated on the grant agreement. There are no expiration dates on MSUs. Represents the market stock units granted on May 28, 2025, which reflect the satisfaction of performance metrics. The market stock units vest on May 28, 2027, subject to continued service. /s/ Donna T. Rossi, attorney-in-fact 2026-09-23