The following table presents the changes in goodwill allocated to the Company’s reportable segments (in millions):






	Network and Service Enablement		Optical Security and Performance Products		Total




Balance as of June 29, 2024(1)	$	410.7	$	42.2	$	452.9
Acquisition(2)	129.7		—		129.7
Measurement period adjustment(2)	0.6		—		0.6
Currency translation	12.5		—		12.5

Balance as of June 28, 2025(3)	$	553.5	$	42.2	$	595.7
Acquisition(2)	111.3		—		111.3
Measurement period adjustment(2)	0.2				0.2

Currency translation	(6.5)		—		(6.5)

Balance as of June 27, 2026(4)	$	658.5	$	42.2	$	700.7

(1) Gross goodwill balances for NSE and OSP were $985.2 million and $126.7 million, respectively, as of June 29, 2024. Accumulated impairment for NSE and OSP was $574.5 million and $84.5 million, respectively, as of June 29, 2024.

(2) Goodwill at acquisition date and adjustments. Refer to “Note 5. Acquisitions” for additional information.

(3) Gross goodwill balances for NSE and OSP were $1,128.0 million and $126.7 million, respectively, as of June 28, 2025. Accumulated impairment for NSE and OSP was $574.5 million and $84.5 million, respectively, as of June 28, 2025.

(4) Gross goodwill balances for NSE and OSP were $1,233.0 million and $126.7 million, respectively, as of June 27, 2026. Accumulated impairment for NSE and OSP was $574.5 million and $84.5 million, respectively, as of June 27, 2026.

The Company tests goodwill at the reporting unit level for impairment annually, during the fourth quarter of each fiscal year, or more frequently if events or circumstances indicate that the asset may be impaired. The Company determined that, based on its organizational structure and the financial information that is provided to and reviewed by the Company’s Chief Operating Decision Maker (CODM) during fiscal 2026 and 2025 that its reporting units were NSE and OSP.

No indications of impairment were identified under the qualitative assessment of goodwill impairment for fiscal years ending on June 27, 2026 and June 28, 2025.