On May 27, 2024, Teradyne paid 483.1 million Euros, equivalent to $524.1 million, to purchase a combination of previously issued and outstanding shares and shares newly issued by Technoprobe, S.p.A. ("Technoprobe"). The shares purchased represent 10% of the issued and outstanding shares of Technoprobe. Teradyne also received a board seat as part of the purchase. Teradyne accounts for this investment using the equity method as a result of being able to exercise significant influence over the operating and financial decisions of Technoprobe. The carrying value of this equity method investment as of June 29, 2025, was $545.4 million in the condensed consolidated balance sheets.


	(in thousands)
Balance at December 31, 2024	$	494,494
Other comprehensive income related to investment		20,716
Equity in net earnings of affiliate		(5,584	)
Balance at March 30, 2025	$	509,626
Other comprehensive income related to investment		41,715
Equity in net earnings of affiliate		(5,927	)
Balance at June 29, 2025	$	545,414

Based on the quoted closing price of Technoprobe stock as of June 29, 2025, the fair value of the publicly traded investment was $569.9 million.

Teradyne's equity method basis difference was calculated as the difference between the investment and the amount of underlying equity in net assets acquired. The basis differences, net of tax, will be amortized over the estimated useful lives.

Teradyne made an accounting policy election to report its share of Technoprobe's results on a 3-month lag, which is applied consistently from period to period. Teradyne records its share of Technoprobe's net income or loss and the amortization of equity method basis difference, as 'Equity in net earnings of affiliate' in the condensed consolidated statements of operations. Teradyne

includes its share of Technoprobe's other comprehensive income and a cumulative translation adjustment in the condensed consolidated statements of comprehensive income.