LYTIR

Company · TER

Teradyne, Inc.

Name as listed on its exchange; filed with the SEC as TERADYNE, INC.

Nasdaq's symbol directory lists TER on Nasdaq as “Teradyne, Inc. - Common Stock”.

In the 12 months to Nov 8, 2026: insiders sold on 17 occasions ($10.1M); 15 planned-sale notices; 1 filing by holders of 5% or more; 1 congressional trade disclosure; 3 company reports (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider purchases and sales, by month (last 12 months)Insider purchases: $0 in total; Insider sales: $10.1M in total.Jun: Insider sales $2.2MJul: Insider sales $1.9MAug: Insider sales $2.3MSep: Insider sales $1.8MOct: Insider sales $1.8MNov: Insider sales $46KDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $0Insider sales below: $10.1M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. Smith Gregory Stephen, President and CEO sold on 5 days all under a 10b5-1 plan latest Oct 15, 2026 sold $7.5M
  2. MATZ MARILYN sold on 7 days all under a 10b5-1 plan latest Oct 21, 2026 sold $2.3M
  3. JOHNSON MERCEDES sold on 5 days all under a 10b5-1 plan latest Nov 2, 2026 sold $306K
Every trade (17)
  1. SELLJOHNSON MERCEDES sold Nov 2, 2026 166 shares 10b5-1 plan (scheduled) filing $46K
  2. SELLMATZ MARILYN sold Oct 21, 2026 400 shares 10b5-1 plan (scheduled) filing $140K
  3. SELLSmith Gregory Stephen, President and CEO sold Oct 15, 2026 4,000 shares 10b5-1 plan (scheduled) filing $1.4M
  4. SELLMATZ MARILYN sold Oct 15, 2026 800 shares 10b5-1 plan (scheduled) filing $273K
  5. SELLJOHNSON MERCEDES sold Oct 1, 2026 167 shares 10b5-1 plan (scheduled) filing $67K
  6. SELLMATZ MARILYN sold Sep 17, 2026 400 shares 10b5-1 plan (scheduled) filing $140K
  7. SELLSmith Gregory Stephen, President and CEO sold Sep 15, 2026 4,000 shares 10b5-1 plan (scheduled) filing $1.4M
  8. SELLMATZ MARILYN sold Sep 15, 2026 800 shares 10b5-1 plan (scheduled) filing $270K
  9. SELLJOHNSON MERCEDES sold Sep 1, 2026 167 shares 10b5-1 plan (scheduled) filing $57K
  10. SELLSmith Gregory Stephen, President and CEO sold Aug 17, 2026 4,000 shares 10b5-1 plan (scheduled) filing $1.7M
  11. SELLMATZ MARILYN sold Aug 17, 2026 1,200 shares 10b5-1 plan (scheduled) filing $510K
  12. SELLJOHNSON MERCEDES sold Aug 3, 2026 166 shares 10b5-1 plan (scheduled) filing $59K
  13. SELLSmith Gregory Stephen, President and CEO sold Jul 15, 2026 4,000 shares 10b5-1 plan (scheduled) filing $1.4M
  14. SELLMATZ MARILYN sold Jul 15, 2026 1,200 shares 10b5-1 plan (scheduled) filing $428K
  15. SELLJOHNSON MERCEDES sold Jul 1, 2026 167 shares 10b5-1 plan (scheduled) filing $77K
  16. SELLSmith Gregory Stephen, President and CEO sold Jun 15, 2026 4,000 shares 10b5-1 plan (scheduled) filing $1.7M
  17. SELLMATZ MARILYN sold Jun 15, 2026 1,200 shares 10b5-1 plan (scheduled) filing $508K

Planned sales · SEC Form 144

Notice given

A Form 144 is filed before an insider sells restricted stock. It states an intent; the sale, if it happens, appears later on a Form 4. Every recent notice

  1. JOHNSON MERCEDES filed Nov 2, 2026 Director 166 shares planned sale date 11/02/2026 filing $46K
  2. MATZ MARILYN filed Oct 21, 2026 Director 400 shares planned sale date 10/21/2026 filing $140K
  3. Smith Gregory Stephen filed Oct 15, 2026 Officer 4,000 shares planned sale date 10/15/2026 filing $1.4M
  4. MATZ MARILYN filed Oct 15, 2026 Director 800 shares planned sale date 10/15/2026 filing $273K
  5. JOHNSON MERCEDES filed Oct 1, 2026 Director 167 shares planned sale date 10/01/2026 filing $67K
  6. MATZ MARILYN filed Sep 17, 2026 Director 400 shares planned sale date 09/17/2026 filing $140K
  7. Smith Gregory Stephen filed Sep 15, 2026 Officer 4,000 shares planned sale date 09/15/2026 filing $1.4M
  8. MATZ MARILYN filed Sep 15, 2026 Director 800 shares planned sale date 09/15/2026 filing $270K
  9. JOHNSON MERCEDES filed Sep 1, 2026 Director 167 shares planned sale date 09/01/2026 filing $57K
  10. Smith Gregory Stephen filed Aug 17, 2026 Officer 4,000 shares planned sale date 08/17/2026 filing $1.7M
  11. MATZ MARILYN filed Aug 17, 2026 Director 1,200 shares planned sale date 08/17/2026 filing $510K
  12. JOHNSON MERCEDES filed Aug 3, 2026 Director 166 shares planned sale date 08/03/2026 filing $59K
  13. Smith Gregory Stephen filed Jul 15, 2026 Officer 4,000 shares planned sale date 07/15/2026 filing $1.4M
  14. MATZ MARILYN filed Jul 15, 2026 Director 1,200 shares planned sale date 07/15/2026 filing $428K
  15. JOHNSON MERCEDES filed Jul 1, 2026 Director 167 shares planned sale date 07/01/2026 filing $77K

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. BlackRock, Inc. filed Jul 30, 2026 Schedule 13G/A passive 17,452,401 shares filing 11.1%

Congress · STOCK Act

The Althing

Periodic transaction reports. Amounts are the ranges members report; the trade date is when it happened, the report can come up to 45 days later.

  1. Alan Armstrong (R-OK): Purchase Mar 27, 2026 reported Jul 21, 2026 one of 703 trades the member reported that day Senate Stock $1,001 - $15,000

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Results of operations and financial condition filing Oct 28, 2026
  2. Entry into a material definitive agreement; Creation of a direct financial obligation filing Aug 10, 2026
  3. Results of operations and financial condition filing Jul 29, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.