A business in context

TER research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-23 · 8022 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-10-21 · 0000904454-26-000526

  2. 4 · Ownership change

    Report date 2026-10-15 · 0000904454-26-000521

  3. 4 · Ownership change

    Report date 2026-10-15 · 0000904454-26-000519

  4. 4 · Ownership change

    Report date 2026-10-01 · 0000904454-26-000502

  5. 4 · Ownership change

    Report date 2026-09-24 · 0000904454-26-000498

  6. 4 · Ownership change

    Report date 2026-09-24 · 0000904454-26-000496

  7. 4 · Ownership change

    Report date 2026-09-25 · 0000904454-26-000494

  8. 4 · Ownership change

    Report date 2026-09-24 · 0000904454-26-000492

  9. 8-K · Current report

    Report date 2026-08-07 · 0001193125-26-342367 · Items 1.01,2.03,9.01

  10. 10-Q · Quarterly report

    Report date 2026-06-28 · 0001193125-26-327715

  11. 8-K · Current report

    Report date 2026-07-28 · 0001193125-26-321933 · Items 2.02,9.01

  12. 8-K · Current report

    Report date 2026-05-08 · 0001193125-26-215848 · Items 5.07

  13. 10-Q · Quarterly report

    Report date 2026-03-29 · 0001193125-26-201058

  14. 8-K · Current report

    Report date 2026-04-28 · 0001193125-26-188706 · Items 2.02,9.01

  15. DEF 14A · Proxy statement

    Report date 2026-03-25 · 0001193125-26-127504

  16. 10-K · Annual report

    Report date 2025-12-31 · 0001193125-26-059002

  17. 8-K · Current report

    Report date 2026-02-02 · 0001193125-26-034348 · Items 2.02,9.01

  18. 10-Q · Quarterly report

    Report date 2025-09-28 · 0001193125-25-258477

  19. 8-K · Current report

    Report date 2025-10-28 · 0001193125-25-254602 · Items 2.02,9.01

  20. 8-K · Current report

    Report date 2025-10-28 · 0001193125-25-253857 · Items 5.02,7.01,9.01

  21. 8-K · Current report

    Report date 2025-08-29 · 0001193125-25-194047 · Items 5.02

  22. 10-Q · Quarterly report

    Report date 2025-06-29 · 0000950170-25-101248

  23. 8-K · Current report

    Report date 2025-07-29 · 0000950170-25-099876 · Items 2.02,9.01

  24. 8-K · Current report

    Report date 2025-06-26 · 0001193125-25-148926 · Items 5.02,7.01,9.01

  25. 8-K · Current report

    Report date 2025-06-20 · 0001193125-25-143662 · Items 3.03,5.03,8.01,9.01

  26. 8-K/A · Current report

    Report date 2025-05-09 · 0001193125-25-117810 · Items 5.02,5.07

  27. 8-K · Current report

    Report date 2025-05-09 · 0001193125-25-117351 · Items 5.02,5.07

  28. 10-Q · Quarterly report

    Report date 2025-03-30 · 0000950170-25-062503

  29. 8-K · Current report

    Report date 2025-04-28 · 0000950170-25-059568 · Items 2.02,9.01

  30. DEF 14A · Proxy statement

    Report date 2025-03-27 · 0000950170-25-046345

  31. 8-K · Current report

    Report date 2025-03-05 · 0001193125-25-047878 · Items 5.02,9.01

  32. 8-K · Current report

    Report date 2025-02-25 · 0001193125-25-035258 · Items 8.01,9.01

  33. 10-K · Annual report

    Report date 2024-12-31 · 0000950170-25-023784

  34. 8-K · Current report

    Report date 2025-01-29 · 0000950170-25-010781 · Items 2.02,9.01

  35. 8-K · Current report

    Report date 2025-01-02 · 0001193125-25-003526 · Items 5.02,9.01

  36. 10-Q · Quarterly report

    Report date 2024-09-29 · 0000950170-24-119923

  37. 8-K · Current report

    Report date 2024-10-23 · 0000950170-24-116845 · Items 2.02,9.01

  38. 10-Q · Quarterly report

    Report date 2024-06-30 · 0000950170-24-089858

  39. 8-K · Current report

    Report date 2024-07-24 · 0000950170-24-086252 · Items 2.02,9.01

  40. SC 13G/A · Ownership disclosure

    0000315066-24-001824

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-23 · 2026 Q3: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 10 transaction rows10SGrant / award: 3 transaction rows3AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

16 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-25
2026-09-28
Herweck PeterJ · Other (see filing)
Acquired
Common Stock4.00.0
2026-09-25
2026-09-28
TUFANO PAUL JJ · Other (see filing)
Acquired
Common Stock19.00.0
2026-09-25
2026-09-28
MADDOCK ERNEST EJ · Other (see filing)
Acquired
Common Stock2.00.0
2026-09-24
2026-09-28
Herweck PeterA · Grant / award
Acquired
Common Stock77.00.0
2026-09-24
2026-09-28
TUFANO PAUL JA · Grant / award
Acquired
Common Stock141.00.0
2026-09-24
2026-09-28
Henry Andrew ChisholmA · Grant / award
Acquired
Common Stock64.00.0
2026-09-17
2026-09-18
MATZ MARILYN
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock400.0351.11
2026-09-15
2026-09-16
Smith Gregory Stephen
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock4000.0337.83
2026-09-15
2026-09-16
MATZ MARILYN
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock800.0337.83
2026-09-01
2026-09-02
JOHNSON MERCEDES
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock167.0341.3
2026-08-17
2026-08-18
Smith Gregory Stephen
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock4000.0425.0
2026-08-17
2026-08-18
MATZ MARILYN
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1200.0425.0
2026-08-03
2026-08-04
JOHNSON MERCEDES
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock166.0358.15
2026-07-15
2026-07-16
Smith Gregory Stephen
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock4000.0356.31
2026-07-15
2026-07-16
MATZ MARILYN
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1200.0356.31
2026-07-01
2026-07-02
JOHNSON MERCEDES
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock167.0460.0

Identity & relationships

Wikidata structured data · retrieved 2026-10-23 · 1658 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0000097210TERADYNE, INC

No parent relationship is available in this import; this is not proof of independence.

Legal Entity Identifier
C3X4YJ278QNZHRJULN75
GLEIF legal name
TERADYNE, INC.
Entity / LEI registration status
ACTIVE / ISSUED
Reference data updated
2026-06-25T11:06:37Z

direct-parent: no parent LEI supplied

ultimate-parent: no parent LEI supplied

GLEIF legal entity reference data · retrieved 2026-10-23 · 1197 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • Teradyne · alias · wikidata
  • TERADYNE INC · former SEC name · 1994-05-06 to 2006-10-11
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Revenue in constant purchasing power

USD revenue expressed in 2026-09 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year endedReported USD revenueCPI-adjusted USD revenue
2024-12-31$2.82B$3.03B
2023-12-31$2.68B$2.96B
2022-12-31$3.16B$3.63B
2021-12-31$3.70B$4.60B
2020-12-31$3.12B$4.06B
2019-12-31$2.29B$3.02B
2018-12-31$2.10B$2.82B
2017-12-31$2.14B$2.94B

Bureau of Labor Statistics · retrieved 2026-10-23 · 9 selected series; gaps remain missing

Explore the CPI history ↗