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TER · Teradyne, Inc

Technology · −5.3% on Oct 16

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Updated Oct 17 · 6 feeds behind: Insider filings, 2 days, and 5 more · Every feed →

On this page

The market view

Price chart

The interactive TER chart (by TradingView) loads here.

Our take

1 rule fired on TER

In short: none of these rules has solid or some evidence yet, so they show no clear lean on TER.

How each did in past tests, against similar stocks over 3 months. Past results don't predict future ones.

The 0–100 score for TER
Members see one number for how strongly these rules agree on TER, and the day each rule fired. Better-tested rules count more, and so do different kinds of filings that point the same way.
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Compare with this company’s history

Is disclosure activity unusual?

See how many different insiders or members of Congress reported purchases or sales of TER. Each bar covers 28 days, by disclosure date. Several trades by one person count once in each group and period.

Latest period: Sep 21, 2026–Oct 18, 2026 · UTC dates · today is excluded

Congress purchases

Sparse history

Only 2 of 12 earlier periods had activity. That is too little recurring activity to label this count unusual.

Latest 28 days
0
Earlier median
0
Earlier range
0–1
Distinct filers per 28 daysScale: 0–1
Oct 20, 2025Oct 18, 2026
Earlier periodsLatest 28 daysEarlier median 0

Who appears in the latest period?

No named filers on file for this period.

Up to three filers; one example disclosure each.

Inspect this period’s filings

The history behind this view

First stored company disclosure: Mar 6, 2025. Newest disclosure across this feed: Oct 15, 2026.

Earlier periods in the comparison: 12. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.

Exact counts, dates and filings for all four categories
Insider purchases · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 0; range: 0–0.

Insider purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 20260Partial; excluded
Jun 29, 2026–Jul 26, 20260Within stored history
Jul 27, 2026–Aug 23, 20260Within stored history
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
Insider sales · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 3; range: 3–3.

Insider sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 2025—Unavailable
Nov 17, 2025–Dec 14, 2025—Unavailable
Dec 15, 2025–Jan 11, 2026—Unavailable
Jan 12, 2026–Feb 8, 2026—Unavailable
Feb 9, 2026–Mar 8, 2026—Unavailable
Mar 9, 2026–Apr 5, 2026—Unavailable
Apr 6, 2026–May 3, 2026—Unavailable
May 4, 2026–May 31, 2026—Unavailable
Jun 1, 2026–Jun 28, 20262Partial; excluded
Jun 29, 2026–Jul 26, 20263Within stored history
Jul 27, 2026–Aug 23, 20263Within stored history
Aug 24, 2026–Sep 20, 20263Within stored history
Sep 21, 2026–Oct 18, 2026Latest period1Within stored history
Congress purchases · Sparse history

Only 2 of 12 earlier periods had activity. That is too little recurring activity to label this count unusual. Earlier median: 0; range: 0–1.

Congress purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 20251Within stored history
Nov 17, 2025–Dec 14, 20250Within stored history
Dec 15, 2025–Jan 11, 20260Within stored history
Jan 12, 2026–Feb 8, 20260Within stored history
Feb 9, 2026–Mar 8, 20260Within stored history
Mar 9, 2026–Apr 5, 20260Within stored history
Apr 6, 2026–May 3, 20260Within stored history
May 4, 2026–May 31, 20260Within stored history
Jun 1, 2026–Jun 28, 20260Within stored history
Jun 29, 2026–Jul 26, 20261Within stored history
Jul 27, 2026–Aug 23, 20260Within stored history
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
Congress sales · Sparse history

Only 2 of 12 earlier periods had activity. That is too little recurring activity to label this count unusual. Earlier median: 0; range: 0–1.

Congress sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 20, 2025–Nov 16, 20251Within stored history
Nov 17, 2025–Dec 14, 20250Within stored history
Dec 15, 2025–Jan 11, 20260Within stored history
Jan 12, 2026–Feb 8, 20260Within stored history
Feb 9, 2026–Mar 8, 20260Within stored history
Mar 9, 2026–Apr 5, 20260Within stored history
Apr 6, 2026–May 3, 20260Within stored history
May 4, 2026–May 31, 20260Within stored history
Jun 1, 2026–Jun 28, 20260Within stored history
Jun 29, 2026–Jul 26, 20260Within stored history
Jul 27, 2026–Aug 23, 20261Within stored history
Aug 24, 2026–Sep 20, 20260Within stored history
Sep 21, 2026–Oct 18, 2026Latest period0Within stored history
How to read this comparison

The median is the middle count in up to 12 earlier, non-overlapping 28-day periods; the range runs from the smallest to the largest count. The latest period is excluded from both. A comparison needs at least 6 earlier periods, including 3 with activity. The feed’s latest disclosure must be within 7 days of the current period’s end. This freshness check does not verify complete collection.

Insiders include individuals and reporting entities; only purchase and sale codes enter this view. Congress counts reporting members, including their disclosed family transactions. The same filer can appear in purchases and sales, so these categories should not be added into a net count.

These are stored disclosures, not a complete measure of trading. Reporting delays and collection gaps can change the comparison. More activity does not identify a motive or predict a stock’s return.

Company timeline

What has been happening?

May 1, 2026–Oct 16, 2026. Select a month in a category to inspect its records.

Company filings

Insiders

Public officials

Insiders · Oct 2026

  1. Filed
  2. Filed
  3. Disclosed
    Mercedes Johnson · Sale

    Transaction dated Oct 1, 2026

  4. Filed
All 25 records in this snapshot
  1. Filed
  2. Filed
  3. Disclosed
    Mercedes Johnson · Sale

    Transaction dated Oct 1, 2026

  4. Filed
  5. Disclosed
    Marilyn Matz · Sale

    Transaction dated Sep 17, 2026

  6. Filed
  7. Disclosed
    Gregory Stephen Smith · Sale

    Transaction dated Sep 15, 2026

  8. Disclosed
    Marilyn Matz · Sale

    Transaction dated Sep 15, 2026

  9. Filed
  10. Disclosed
    Mercedes Johnson · Sale

    Transaction dated Sep 1, 2026

  11. Disclosed
    Gregory Stephen Smith · Sale

    Transaction dated Aug 17, 2026

  12. Disclosed
    Marilyn Matz · Sale

    Transaction dated Aug 17, 2026

  13. Filed
  14. Filed
  15. Filed
  16. Disclosed
    Tommy Tuberville · Sale

    Transaction dated May 3, 2024

  17. Disclosed
    Mercedes Johnson · Sale

    Transaction dated Aug 3, 2026

  18. Filed
  19. Filed
  20. Disclosed
    Alan Armstrong · Purchase

    Transaction dated Mar 27, 2026

  21. Disclosed
    Gregory Stephen Smith · Sale

    Transaction dated Jul 15, 2026

  22. Disclosed
    Marilyn Matz · Sale

    Transaction dated Jul 15, 2026

  23. Disclosed
    Mercedes Johnson · Sale

    Transaction dated Jul 1, 2026

  24. Disclosed
    Gregory Stephen Smith · Sale

    Transaction dated Jun 15, 2026

  25. Disclosed
    Marilyn Matz · Sale

    Transaction dated Jun 15, 2026

Month counts include every record on file. The lists show the newest records on this page. A dash means none on file that month. Trades use disclosure dates; contract dates follow the source record. Nearby events do not establish the cause of a price move.

Who's buying and selling · last 90 days

Congress

1 member bought, 1 sold · 2 Rep

  1. ▼ SELLTommy Tuberville Rep · Senate · ALTER Teradyne, Inc$1K–$15Kdisclosed Aug 5 · filed 824 days after the trade · late
  2. ▲ BUYAlan Armstrong Rep · Senate · OKTER Teradyne, Inc$1K–$15Kdisclosed Jul 21 · filed 116 days after the trade · late 1 rule fired
See every Congress trade on TER →

Company insiders

0 buys · 8 sells · $4.2M sold

  1. ▼ SELLMercedes Johnson DirectorTER Teradyne, Inc$67.3Kdisclosed Oct 2 · filed 1 day after the trade
  2. ▼ SELLMarilyn Matz DirectorTER Teradyne, Inc$140Kdisclosed Sep 18 · filed 1 day after the trade
  3. ▼ SELLGregory Stephen Smith President and CEOTER Teradyne, Inc$1.4Mdisclosed Sep 16 · filed 1 day after the trade
  4. ▼ SELLMarilyn Matz DirectorTER Teradyne, Inc$270Kdisclosed Sep 16 · filed 1 day after the trade
  5. ▼ SELLMercedes Johnson DirectorTER Teradyne, Inc$57Kdisclosed Sep 2 · filed 1 day after the trade
  6. ▼ SELLMarilyn Matz DirectorTER Teradyne, Inc$510Kdisclosed Aug 18 · filed 1 day after the trade
  7. ▼ SELLGregory Stephen Smith President and CEOTER Teradyne, Inc$1.7Mdisclosed Aug 18 · filed 1 day after the trade
  8. ▼ SELLMercedes Johnson DirectorTER Teradyne, Inc$59.5Kdisclosed Aug 4 · filed 1 day after the trade
See every insider trade on TER →

Filings & events

Company filings (8-K) 52

Events the company must report to the SEC within days — results, deals, departures, restatements.

What it files 8-Ks about

  • Quarterly or yearly results · item 2.0210
  • Directors or officers joined, left or got new pay · item 5.026
  • Shared information with investors · item 7.014
  • Changed its charter or bylaws · item 5.033
  • Signed a major agreement · item 1.012
  • Took on new debt · item 2.032

Filing red flags 6

Warning signs in the company's own SEC filings — going-concern doubts, control weaknesses, staff comment letters, late filings, restatements, Wells notices, clinical holds, dividend cuts.

Lobbying 21

Lobbying reports filed with the Senate for the company.

$1.4M across 21 reports

Issues named in the most reports

  • Trade (domestic/foreign) 19
  • Computer Industry 6
  • Manufacturing 3
  • Tariff (miscellaneous tariff bills) 1
  • Taxation/Internal Revenue Code 1

Planned insider sales (Form 144) 89

Notices insiders file before they sell certain shares, such as ones they got straight from the company.

10 in the last 90 days · 89 notices on file

The notices on file don't give the sale's size; each sale shows up under company insiders once it is reported.

5% owners (13D / 13G) 2

Investors who reported owning 5% or more — 13D for owners who may push for changes, 13G for owners who just hold.

Push for changes, or just hold?

  • 13G, just holds: 2 filings

Filed by Vanguard Capital Management LLC · Vanguard Portfolio Management LLC

Biggest named funds (13F)

The largest TER holdings among the well-known funds whose quarterly 13F filings we read — opens here.

Every disclosed trade on TER

  1. ▼ SELLMercedes Johnson DirectorTER Teradyne, Inc$67.3Kdisclosed Oct 2 · filed 1 day after the trade
  2. ▼ SELLMarilyn Matz DirectorTER Teradyne, Inc$140Kdisclosed Sep 18 · filed 1 day after the trade
  3. ▼ SELLGregory Stephen Smith President and CEOTER Teradyne, Inc$1.4Mdisclosed Sep 16 · filed 1 day after the trade
  4. ▼ SELLMarilyn Matz DirectorTER Teradyne, Inc$270Kdisclosed Sep 16 · filed 1 day after the trade
  5. ▼ SELLMercedes Johnson DirectorTER Teradyne, Inc$57Kdisclosed Sep 2 · filed 1 day after the trade
  6. ▼ SELLMarilyn Matz DirectorTER Teradyne, Inc$510Kdisclosed Aug 18 · filed 1 day after the trade
  7. ▼ SELLGregory Stephen Smith President and CEOTER Teradyne, Inc$1.7Mdisclosed Aug 18 · filed 1 day after the trade
  8. ▼ SELLTommy Tuberville Rep · Senate · ALTER Teradyne, Inc$1K–$15Kdisclosed Aug 5 · filed 824 days after the trade · late
  9. ▼ SELLMercedes Johnson DirectorTER Teradyne, Inc$59.5Kdisclosed Aug 4 · filed 1 day after the trade
  10. ▲ BUYAlan Armstrong Rep · Senate · OKTER Teradyne, Inc$1K–$15Kdisclosed Jul 21 · filed 116 days after the trade · late 1 rule fired
  11. ▼ SELLGregory Stephen Smith President and CEOTER Teradyne, Inc$1.4Mdisclosed Jul 16 · filed 1 day after the trade
  12. ▼ SELLMarilyn Matz DirectorTER Teradyne, Inc$428Kdisclosed Jul 16 · filed 1 day after the trade
  13. ▼ SELLMercedes Johnson DirectorTER Teradyne, Inc$76.8Kdisclosed Jul 2 · filed 1 day after the trade
  14. ▼ SELLGregory Stephen Smith President and CEOTER Teradyne, Inc$1.7Mdisclosed Jun 16 · filed 1 day after the trade
  15. ▼ SELLMarilyn Matz DirectorTER Teradyne, Inc$508Kdisclosed Jun 16 · filed 1 day after the trade
  16. ▲ BUYLisa C. McClain Rep · House · MITER Teradyne, Inc$1K–$15Kdisclosed Nov 1, 2025 · filed 2 days after the trade
  17. ▼ SELLLisa C. McClain Rep · House · MITER Teradyne, Inc$1K–$15Kdisclosed Nov 1, 2025 · filed 1 day after the trade
  18. ▼ SELLLisa C. McClain Rep · House · MITER Teradyne, Inc$1K–$15Kdisclosed Nov 1, 2025 · filed 2 days after the trade
  19. ▲ BUYLisa C. McClain Rep · House · MITER Teradyne, Inc$1K–$15Kdisclosed Aug 13, 2025 · filed 57 days after the trade · late
  20. ▼ SELLJulie Johnson Dem · House · TXTER Teradyne, Inc$1K–$15Kdisclosed May 6, 2025 · filed 35 days after the trade
  21. ▼ SELLJulie Johnson Dem · House · TXTER Teradyne, Inc$1K–$15Kdisclosed Apr 8, 2025 · filed 36 days after the trade
  22. ▲ BUYJulie Johnson Dem · House · TXTER Teradyne, Inc$1K–$15Kdisclosed Mar 6, 2025 · filed 22 days after the trade
See the trades on TER in the feed →
People & votes

Which members of Congress traded TER, sponsored bills that touch it and voted on them — opens here.