Teradyne, Inc. (TER)
Nasdaq: TER · Instruments For Meas & Testing of Electricity & Elec Signals · North Reading, MA · filing with the SEC since 1994
Grade6.4
◀ Past 5.9● Present 6.7▶ Future 6.4
Who owns Teradyne, Inc.
As filed with the SECHolders of 5% or more
3
Blackrock, Inc. holds 11.1% of Common Stock, as its SCHEDULE 13G/A filed Jul 30, 2026 says.
Directors and officers
14
report now, of 30 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 3 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Jul 30, 2026 · Common Stock · 10.1% in Jun 4, 2026
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Fmr LLC
SCHEDULE 13G/A · filed May 12, 2025 · COMMON STOCK · reported falling below 5%, from 7.1% in Feb 12, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%, from 13.1% in Jul 29, 2025
What TER reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Quantifi Photonics
A company bought · acquisition · May 2025 · owns, named in the 10-K filed Feb 19, 2026
Automated Test Equipment Technology and Associated Development Team
A company bought · acquisition · Jan 2025 · owns, named in the 10-K filed Feb 19, 2026
Ist
A company bought · acquisition · owns, named in the 10-K filed Feb 19, 2026
Memory
A company bought · acquisition · owns, named in the 10-K filed Feb 19, 2026
Soc
A company bought · acquisition · owns, named in the 10-K filed Feb 19, 2026
Universal Robots A/C
A company bought · acquisition · owns, named in the 10-K filed Feb 19, 2026
48 subsidiaries in 22 countries, from the list filed with the 10-K filed Feb 19, 2026.
Insider tradesForm 4
34sales
0purchases
33sales on a scheduled plan
6people selling
$15.9Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 5, 2025 to Nov 5, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 5, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window6 of 30 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Smith Gregory Stephen | President and CEO | 8 | $10.9M | 8 | 0 | $0 |
| Matz Marilyn | director | 9 | $2.7M | 9 | 0 | $0 |
| Johnson Mercedes | director | 12 | $1.3M | 12 | 0 | $0 |
| Poulin Shannon John | President, Semiconductor Test | 2 | $600,000 | 2 | 0 | $0 |
| Mills Regan | President, Product Test | 3 | $300,000 | 2 | 0 | $0 |
| Driscoll Ryan | VP, General Counsel, Secretary | 1 | $300,000 | 1 | 0 | $0 |