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. As of December 31, 2024, $494.5 million was recorded as 'Equity method investment' in the consolidated balance sheets.


	(in thousands)
Balance at May 27, 2024	$	524,060
Other comprehensive income related to investment		(22,355	)
Equity in net earnings of affiliate		(7,211	)
Balance at December 31, 2024	$	494,494

Based on the quoted closing price of Technoprobe stock as of December 31, 2024, the fair value of the publicly traded investment was $389.5 million. Evaluation of Technoprobe's financial condition and Teradyne's ability to hold the investment indicate there was no other-than-temporary impairment as of December 31, 2024.

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 equity method basis difference calculated at acquisition attributable to developed technology, customer relationships, trade name, property, plant and equipment, inventory, and deferred tax liability was $200.9 million. The basis differences, net of tax, will be amortized over their 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 consolidated statements of operations. Teradyne includes its share

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