Teradyne Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:TER Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
07 May 26	SellUS$256,768	Ryan Driscoll	Individual		680	US$377.60

Insider Trading Volume

Insider Buying: TER insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of TER?
Owner Type	Number of Shares	Ownership Percentage
State or Government	163,753	0.105%
Individual Insiders	169,445	0.108%
General Public	7,066,312	4.51%
Institutions	149,142,652	95.3%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 54.86% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
10.4%	BlackRock, Inc.	16,296,888	US$5.8b	5.95%	0.07%
6.5%	Vanguard Capital Management, LLC	10,176,191	US$3.6b	28,800%	0.06%
5.5%	Vanguard Portfolio Management, LLC	8,602,918	US$3.1b	17,300%	0.14%
4.45%	State Street Global Advisors, Inc.	6,970,426	US$2.5b	-1.53%	0.07%
2.79%	Geode Capital Management, LLC	4,368,680	US$1.6b	4.93%	0.07%
2.16%	FMR LLC	3,375,105	US$1.2b	50.1%	0.05%
1.96%	UBS Asset Management AG	3,075,442	US$1.1b	6.63%	0.07%
1.82%	Columbia Management Investment Advisers, LLC	2,843,976	US$1.0b	-36.7%	0.19%
1.59%	Van Eck Associates Corporation	2,484,365	US$890.5m	9.02%	0.46%
1.52%	Alkeon Capital Management, LLC	2,374,162	US$851.0m	14.9%	4.17%
1.5%	JP Morgan Asset Management	2,345,757	US$840.8m	-22.4%	0.07%
1.46%	Point72 Asset Management, L.P.	2,284,718	US$818.9m	-18.9%	1.31%
1.35%	AQR Capital Management, LLC	2,119,725	US$759.8m	73%	0.34%
1.35%	T. Rowe Price Group, Inc.	2,118,808	US$759.5m	-49.6%	0.06%
1.32%	Norges Bank Investment Management	2,060,223	US$738.5m	0%	0.04%
1.2%	Lone Pine Capital LLC	1,872,876	US$671.3m	0%	4.48%
1.09%	Amova Asset Management Co., Ltd.	1,703,715	US$610.7m	-24.4%	0.17%
1.01%	Northern Trust Global Investments	1,574,900	US$564.5m	-2.17%	0.06%
0.93%	Assenagon Asset Management S.A.	1,455,143	US$521.6m	59.9%	0.59%
0.89%	Amundi Asset Management SAS	1,401,039	US$502.2m	119%	0.07%
0.89%	Invesco Capital Management LLC	1,393,946	US$499.6m	-12.5%	0.12%
0.83%	Barclays PLC	1,294,156	US$463.9m	-12.1%	0.24%
0.83%	Federated Hermes, Inc.	1,293,867	US$463.8m	-4.34%	0.73%
0.8%	ARK Investment Management LLC	1,245,122	US$446.3m	-47.2%	2.86%
0.73%	Citigroup Inc.	1,144,838	US$410.4m	32.9%	0.2%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/05/26 16:58
End of Day Share Price	2026/05/22 00:00
Earnings	2026/03/29
Annual Earnings	2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Teradyne, Inc. is covered by 35 analysts. 18 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Steven Liu	Aletheia Analyst Network Limited
Quinn Fredrickson	Baird
Robert Mason	Baird