VIAV

SEC source: 0000912093-26-000038 · form4.xml · nonDerivative · entry 1

BELLUZZO RICHARD · CIK 0001204925 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,740

F1 · price: This transaction was executed in multiple trades at prices ranging from $53.22 to $53.49. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-26-000036 · form4.xml · nonDerivative · entry 1

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,587,254

F1 · shares: The reported transaction is a charitable donation of 5,600 shares of Viavi stock to Carnegie Mellon University.

SEC source: 0000912093-26-000034 · form4.xml · nonDerivative · entry 1

Siebert Kevin Christopher · CIK 0001634069 · SVP Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,384

SEC source: 0000912093-26-000032 · form4.xml · nonDerivative · entry 1

McNab Paul · CIK 0001619901 · EVP, Chief Mktg & Stgy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,198

SEC source: 0000912093-26-000030 · form4.xml · nonDerivative · entry 1

COLVIN DONALD A · CIK 0001228888 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 147,053

F1 · price: This transaction was executed in multiple trades at prices ranging from $29.20 to $29.29. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-26-000028 · form4.xml · nonDerivative · entry 1

BELLUZZO RICHARD · CIK 0001204925 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 211,850

F1 · price: This transaction was executed in multiple trades at prices ranging from $26.83 to $26.89. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-26-000026 · form4.xml · nonDerivative · entry 1

BELLUZZO RICHARD · CIK 0001204925 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 227,625

SEC source: 0000912093-26-000024 · form4.xml · nonDerivative · entry 1

SCRIVANICH LUKE M · CIK 0001556374 · SVP General Manager OSP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,980

F1 · balance_after: Total includes an exempt purchase of 2,061 shares under the ESPP plan on January 30, 2026.

SEC source: 0000912093-26-000022 · form4.xml · nonDerivative · entry 2

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by reporting person's spouse

Disclosed balance after: 20,238

F2 · price: This transaction was executed in multiple trades at prices ranging from $27.50 to $27.53. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-26-000022 · form4.xml · nonDerivative · entry 1

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,592,854

F1 · price: This transaction was executed in multiple trades at prices ranging from $27.50 to $27.52. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-26-000020 · form4.xml · nonDerivative · entry 1

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,635,621

F1 · price: This transaction was executed in multiple trades at prices ranging from $26.25 to $26.26. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-26-000018 · form4.xml · nonDerivative · entry 2

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,708,871

F1 · price: This transaction was executed in multiple trades at prices ranging from $26.24 to $26.30. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-26-000018 · form4.xml · nonDerivative · entry 1

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,749,550

SEC source: 0000912093-26-000016 · form4.xml · nonDerivative · entry 2

Staley Gary W · CIK 0001698474 · SVP Global Sales NSE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 136,267

SEC source: 0000912093-26-000016 · form4.xml · nonDerivative · entry 1

Staley Gary W · CIK 0001698474 · SVP Global Sales NSE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 159,211

SEC source: 0000912093-26-000014 · form4.xml · nonDerivative · entry 1

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,779,437

SEC source: 0000912093-26-000012 · form4.xml · nonDerivative · entry 1

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,849,437

F1 · price: This transaction was executed in multiple trades at prices ranging from $26.32 to $26.67. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F2 · balance_after: Total includes an exempt purchase of 2,561 shares under the ESPP plan on January 30, 2026.

SEC source: 0000912093-26-000010 · form4.xml · nonDerivative · entry 2

Staley Gary W · CIK 0001698474 · SVP Global Sales NSE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,504

SEC source: 0000912093-26-000010 · form4.xml · nonDerivative · entry 1

Staley Gary W · CIK 0001698474 · SVP Global Sales NSE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 179,342

SEC source: 0000912093-26-000008 · form4.xml · nonDerivative · entry 1

Staley Gary W · CIK 0001698474 · SVP Global Sales NSE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,810

SEC source: 0000912093-26-000006 · form4.xml · nonDerivative · entry 2

Staley Gary W · CIK 0001698474 · SVP Global Sales NSE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 203,552

F2 · price: This transaction was executed in multiple trades at prices ranging from $25.80 to $25.85. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Total includes an exempt purchase of 1,104 and 2,041 shares under the ESPP plan on January 31, 2018 and January 30, 2026 respectively.

SEC source: 0000912093-26-000006 · form4.xml · nonDerivative · entry 1

Staley Gary W · CIK 0001698474 · SVP Global Sales NSE

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 220,690

F1 · price: This transaction was executed in multiple trades at prices ranging from $25.84 to $25.85. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-26-000004 · form4.xml · nonDerivative · entry 1

McNab Paul · CIK 0001619901 · EVP, Chief Mktg & Stgy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,749

F1 · price: This transaction was executed in multiple trades at prices ranging from $25.79 to $25.81. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-26-000002 · form4.xml · nonDerivative · entry 1

Siebert Kevin Christopher · CIK 0001634069 · SVP Gen. Counsel & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,648

F1 · price: This transaction was executed in multiple trades at prices ranging from $25.72 to $25.73. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-25-000223 · form4.xml · nonDerivative · entry 1

Burns Richard John · CIK 0001357050 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,384

F1 · kind: Shares were sold pursuant to a Rule 10b5-1 Stock Trading Plan dated September 10, 2025.

SEC source: 0000912093-25-000221 · form4.xml · nonDerivative · entry 1

Corrales Eugenia · CIK 0001648835 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,384

F1 · kind: Shares were sold pursuant to a Rule 10b5-1 Stock Trading Plan dated September 10, 2025.

SEC source: 0000912093-25-000219 · form4.xml · nonDerivative · entry 1

Siebert Kevin Christopher · CIK 0001634069 · SVP Gen. Counsel & Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 49,225

F1 · kind: Shares were sold pursuant to a Rule 10b5-1 Stock Trading Plan dated September 8, 2025.

F2 · price: This transaction was executed in multiple trades at prices ranging from $18.07 to $18.41. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-25-000217 · form4.xml · nonDerivative · entry 1

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by reporting person's spouse

Disclosed balance after: 40,238

SEC source: 0000912093-25-000215 · form4.xml · nonDerivative · entry 2

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · Held by reporting person's spouse

Disclosed balance after: 80,476

F1 · price: This transaction was executed in multiple trades at prices ranging from $17.60 to $17.62. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-25-000215 · form4.xml · nonDerivative · entry 1

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,921,191

SEC source: 0000912093-25-000211 · form4.xml · nonDerivative · entry 4

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,956,195

F4 · balance_after: Total includes an exempt purchase of 724 shares under the ESPP plan on July 31, 2024.

SEC source: 0000912093-25-000211 · form4.xml · nonDerivative · entry 3

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,966,066

F3 · price: This transaction was executed in multiple trades at prices ranging from $17.76 to $17.80. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-25-000213 · form4.xml · nonDerivative · entry 3

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,132

F3 · price: This transaction was executed in multiple trades at prices ranging from $17.40 to $17.46. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-25-000213 · form4.xml · nonDerivative · entry 2

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,323

F2 · price: This transaction was executed in multiple trades at prices ranging from $17.40 to $17.51. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-25-000213 · form4.xml · nonDerivative · entry 1

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 155,032

F1 · price: This transaction was executed in multiple trades at prices ranging from $17.60 to $17.96. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-25-000211 · form4.xml · nonDerivative · entry 2

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,025,005

F2 · price: This transaction was executed in multiple trades at prices ranging from $17.62 to $17.67. The Price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-25-000211 · form4.xml · nonDerivative · entry 1

KHAYKIN OLEG · CIK 0001278725 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,066,442

F1 · price: This transaction was executed in multiple trades at prices ranging from $17.62 to $17.71. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000912093-25-000207 · form4.xml · derivative · entry 12

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,878

Underlying: Common Stock · 37,879 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_date: Units subject to the Award shall vest annually in three equal installments

F6 · derivative.expiration_date: There are no expiration dates on RSUs.

SEC source: 0000912093-25-000207 · form4.xml · derivative · entry 11

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,886

Underlying: Common Stock · 65,944 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Units subject to the Award shall vest on the four year anniversary of the grant date.

F6 · derivative.expiration_date: There are no expiration dates on RSUs.

SEC source: 0000912093-25-000207 · form4.xml · derivative · entry 10

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,880

Underlying: Common Stock · 35,984 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: Units subject to the Award shall vest annually in three equal installments.

F4 · derivative.expiration_date: There are no expiration dates on MSUs.

SEC source: 0000912093-25-000207 · form4.xml · derivative · entry 9

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,888

Underlying: Common Stock · 62,645 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Units subject to the Award shall vest on the four year anniversary of the grant date.

F4 · derivative.expiration_date: There are no expiration dates on MSUs.

SEC source: 0000912093-25-000207 · form4.xml · nonDerivative · entry 8

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,132

F2 · shares: 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 restricted stock award or performance stock award, as applicable. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0000912093-25-000207 · form4.xml · nonDerivative · entry 7

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 197,216

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Each stock unit converts upon vesting into one share of common stock.

SEC source: 0000912093-25-000207 · form4.xml · nonDerivative · entry 6

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 159,337

F2 · shares: 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 restricted stock award or performance stock award, as applicable. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0000912093-25-000207 · form4.xml · nonDerivative · entry 5

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,078

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Each stock unit converts upon vesting into one share of common stock.

SEC source: 0000912093-25-000207 · form4.xml · nonDerivative · entry 4

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 123,134

F2 · shares: 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 restricted stock award or performance stock award, as applicable. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0000912093-25-000207 · form4.xml · nonDerivative · entry 3

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 139,363

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Each stock unit converts upon vesting into one share of common stock.

SEC source: 0000912093-25-000207 · form4.xml · nonDerivative · entry 2

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,379

F2 · shares: 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 restricted stock award or performance stock award, as applicable. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0000912093-25-000207 · form4.xml · nonDerivative · entry 1

Daskal Ilan · CIK 0001446964 · EVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,632

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Each stock unit converts upon vesting into one share of common stock.

SEC source: 0000912093-25-000209 · form4.xml · nonDerivative · entry 1

McNab Paul · CIK 0001619901 · EVP, Chief Mktg & Stgy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,387