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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
97210	Teradyne Inc	TER	Instruments For Meas & Testing Of Electricity & Elec Signals (3825)	042272148

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1553425	G. Walter Vahey	2 Ware Road Winchester MA 01890	President, Systems Test Group	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Disposition	2017-02-15	30,000	$29.00	42,993	No	4	S	Direct
Common Stock	Acquisiton	2017-02-15	11,208	$16.56	54,201	No	4	M	Direct
Common Stock	Disposition	2017-02-15	11,208	$29.00	42,993	No	4	S	Direct
Common Stock	Acquisiton	2017-02-15	6,216	$19.16	49,209	No	4	M	Direct
Common Stock	Disposition	2017-02-15	6,216	$29.00	42,993	No	4	S	Direct
Common Stock	Acquisiton	2017-02-15	5,361	$18.10	48,354	No	4	M	Direct
Common Stock	Disposition	2017-02-15	5,361	$29.00	42,993	No	4	S	Direct
Common Stock	Acquisiton	2017-02-15	2,405	$19.43	45,398	No	4	M	Direct
Common Stock	Disposition	2017-02-15	2,405	$29.00	42,993	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Non-qualified Stock Option (Right to Buy)	Disposition	2017-02-15	11,208	$0.00	11,208	$16.56
Common Stock	Non-qualified Stock Option (Right to Buy)	Disposition	2017-02-15	6,216	$0.00	6,216	$19.16
Common Stock	Non-qualified Stock Option (Right to Buy)	Disposition	2017-02-15	5,361	$0.00	5,361	$18.10
Common Stock	Non-qualified Stock Option (Right to Buy)	Disposition	2017-02-15	2,405	$0.00	2,405	$19.43

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2014-01-25	2020-01-25	No	4	M	Direct
2,072	2015-01-24	2021-01-24	No	4	M	Direct
5,362	2016-01-30	2022-01-30	No	4	M	Direct
7,218	2017-01-29	2023-01-29	No	4	M	Direct

Footnotes

This option is granted under Teradyne's 2006 Equity and Cash Compensation Incentive Plan, and is exercisable at the rate of 25% per year, commencing on the date of the first anniversary of the grant, January 25, 2014.
This option is granted under Teradyne's 2006 Equity and Cash Compensation Incentive Plan, and is exercisable at the rate of 25% per year, commencing on the date of the first anniversary of the grant, January 24, 2015.
This option is granted under Teradyne's 2006 Equity and Cash Compensation Incentive Plan, and is exercisable at the rate of 25% per year, commencing on the date of the first anniversary of the grant, January 30, 2016.
This option is granted under Teradyne's 2006 Equity and Cash Compensation Incentive Plan, and is exercisable at the rate of 25% per year, commencing on the date of the first anniversary of the grant, January 29, 2017.