Director

President and CEO

Teradyne provides testing equipment, including automated test equipment for semiconductors, system testing for hard disk drives, circuit boards, and electronics systems, and wireless testing for devices. The firm entered the industrial automation market in 2015 and sells collaborative and autonomous robots for factory applications. Teradyne serves numerous end markets and geographies, directly and indirectly, through its products, but its most significant exposure is to semiconductor testing. Teradyne serves vertically integrated, fabless, and foundry chipmakers with its equipment.

Institution	Shares	Value	Change
Robeco Institutional Asset Management B.V	430,651	$208M	INCREASED
Mirae Asset Global Investments Co., Ltd	348,243	$168M	INCREASED
Tensor Edge Capital	178,178	$86M	INCREASED
Wealth Enhancement Advisory Services	131,107	$44M	INCREASED
Robeco Schweiz	129,176	$63M	DECREASED

Insider	Type	Shares	Value	Date
Marilyn Matz (Director)	SELL	1,200	$428K	2026-07-15
Gregory Stephen Smith (President and CEO)	SELL	4,000	$1M	2026-07-15
Mercedes Johnson (Director)	SELL	167	$77K	2026-07-01
Peter Herweck (Director)	AWARD	63		2026-06-25
Andrew Chisholm Henry (Director)	AWARD	52		2026-06-25

Member	Type	Amount	Date
Alan Armstrong (Republican)	PURCHASE	$1,001 - $15,000	2026-03-27
Ro Khanna (Democrat)	PURCHASE	$1,001 - $15,000	2026-05-01
Michael McCaul	PURCHASE	$15,001 - $50,000	2026-04-29

Teradyne, Inc. Common Stock (TER) Ownership & Trading Activity

Top Institutional Holders

Recent Insider Trades

Recent Congressional Trades