Teradyne Ownership

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

Recent Insider Transactions

SWX:TER Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
15 Jul 26	SellCHF 344,850	Marilyn Matz	Individual	1,200	CHF 287.37
15 Jul 26	SellCHF 1,149,499	Gregory Smith	Individual	4,000	CHF 287.37
01 Jul 26	SellCHF 62,083	Mercedes Johnson	Individual	167	CHF 371.75
07 May 26	SellCHF 199,748	Ryan Driscoll	Individual	680	CHF 293.75

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
Individual Insiders	160,894	0.103%
State or Government	165,659	0.106%
General Public	2,738,534	1.75%
Institutions	153,275,663	98%

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

Top Shareholders

Top 25 shareholders own 58.97% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
12.4%	BlackRock, Inc.	19,437,021	CHF 6.6b	19.2%	0.09%
7.12%	Vanguard Capital Management, LLC	11,125,072	CHF 3.8b	0.61%	0.07%
5.52%	Vanguard Portfolio Management, LLC	8,633,782	CHF 2.9b	0.36%	0.15%
4.66%	State Street Investment Management	7,290,460	CHF 2.5b	4.59%	0.08%
2.94%	Geode Capital Management, LLC	4,602,292	CHF 1.6b	5.35%	0.08%
2.9%	JP Morgan Asset Management	4,529,599	CHF 1.5b	93.1%	0.15%
2.38%	FMR LLC	3,713,134	CHF 1.3b	10%	0.06%
2.32%	UBS Asset Management AG	3,621,623	CHF 1.2b	17.8%	0.09%
1.82%	Columbia Management Investment Advisers, LLC	2,843,976	CHF 965.3m	-36.7%	0.2%
1.59%	Van Eck Associates Corporation	2,484,365	CHF 843.2m	9.02%	0.51%
1.52%	Alkeon Capital Management, LLC	2,374,162	CHF 805.8m	14.9%	4.79%
1.46%	Point72 Asset Management, L.P.	2,284,718	CHF 775.4m	-18.9%	1.39%
1.36%	AQR Capital Management, LLC	2,119,725	CHF 719.4m	73%	0.34%
1.36%	T. Rowe Price Group, Inc.	2,118,808	CHF 719.1m	-49.6%	0.07%
1.32%	Norges Bank Investment Management	2,060,223	CHF 699.2m	0%	0.04%
1.2%	Lone Pine Capital LLC	1,872,876	CHF 635.7m	0%	4.99%
0.96%	Northern Trust Global Investments	1,503,908	CHF 510.4m	-4.51%	0.07%
0.89%	Invesco Capital Management LLC	1,393,946	CHF 473.1m	-12.5%	0.08%
0.83%	Barclays PLC	1,294,156	CHF 439.2m	-12.1%	0.26%
0.8%	ARK Investment Management LLC	1,245,122	CHF 422.6m	-47.2%	2.82%
0.77%	Amundi Asset Management SAS	1,202,930	CHF 408.3m	-14.1%	0.07%
0.72%	Invesco Ltd.	1,126,638	CHF 382.4m	-17.1%	0.09%
0.71%	Amova Asset Management Co., Ltd.	1,117,097	CHF 379.1m	-34.4%	0.12%
0.71%	Goldman Sachs Asset Management, L.P.	1,110,067	CHF 376.8m	-10.3%	0.08%
0.7%	Legal & General Investment Management Limited	1,094,278	CHF 371.4m	-5.92%	0.08%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2026/08/17 17:19
End of Day Share Price	2026/06/25 00:00
Earnings	2026/06/28
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. 17 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
Robert Mason	Baird
Quinn Fredrickson	Baird