Item 15. Exhibits and Financial Statement Schedule .

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15(a)(1) Financial Statements

The following consolidated financial statements are included in Item 8:


	Page
Report of Independent Registered Public Accounting Firm		46
Consolidated Balance Sheets as of December 31, 2020 and 2019		49
Consolidated Statements of Operations for the years ended December 31, 2020, 2019 and 2018		50
Consolidated Statements of Comprehensive Income for the years ended December 31, 2020, 2019 and 2018		51
Consolidated Statements of Convertible Common Shares and Shareholders’ Equity for the years ended December 31, 2020, 2019 and 2018		52
Consolidated Statements of Cash Flows for the years ended December 31, 2020, 2019 and 2018		53

15(a)(2) Financial Statement Schedule

The following consolidated financial statement schedule is included in Item 15(c):

Schedule II—Valuation and Qualifying Accounts

Schedules other than those listed above have been omitted since they are either not required or information is otherwise included.

15(a)(3) Listing of Exhibits

The Exhibits which are filed with this report or which are incorporated by reference herein are set forth in the Exhibit Index.

15(c) Financial Statement Schedules

TERADYNE, INC.

SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS


Column A	Column B		Column C		Column D		Column E		Column F
Description	Balance at Beginning of Period		Additions Charged to Cost and Expenses		Other		Deductions		Balance at End of Period
	(in thousands)
Valuation reserve deducted in the balance sheet from the asset to which it applies:
Accounts receivable:
2020 Allowance for doubtful account	$	1,736	$	356	$	32	$	90	$	2,034

2019 Allowance for doubtful account	$	1,673	$	87	$	28	$	52	$	1,736

2018 Allowance for doubtful account	$	2,219	$	—	$	20	$	566	$	1,673


Column A	Column B		Column C		Column D			Column E		Column F
Description	Balance at Beginning of Period		Additions Charged to Cost and Expenses		Other			Deductions		Balance at End of Period
	(in thousands)
Valuation reserve deducted in the balance sheet from the asset to which it applies:
Inventory:
2020 Inventory reserve	$	103,556	$	17,534	$	(521	)	$	9,982	$	110,587

2019 Inventory reserve	$	100,779	$	15,244	$	(85	)	$	12,382	$	103,556

2018 Inventory reserve	$	102,896	$	11,242	$	368		$	13,727	$	100,779


Column A	Column B		Column C		Column D		Column E		Column F
Description	Balance at Beginning of Period		Additions Charged to Cost and Expenses		Other		Deductions		Balance at End of Period
	(in thousands)
Valuation reserve deducted in the balance sheet from the asset to which it applies:
Deferred taxes:
2020 Valuation allowance	$	77,177	$	7,785	$	—	$	—	$	84,962

2019 Valuation allowance	$	69,852	$	7,325	$	—	$	—	$	77,177

2018 Valuation allowance	$	63,919	$	6,333	$	—	$	400	$	69,852