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SEC submissions · retrieved 2026-09-08 · 8005 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-08-04 · 0001582882-26-000004

  2. 10-Q · Quarterly report

    Report date 2026-06-28 · 0000831641-26-000017

  3. 8-K · Current report

    Report date 2026-07-29 · 0001104659-26-088213 · Items 2.02,8.01,9.01

  4. 4 · Ownership change

    Report date 2026-06-04 · 0001582882-26-000002

  5. 4 · Ownership change

    Report date 2026-05-15 · 0001369458-26-000006

  6. 10-Q · Quarterly report

    Report date 2026-03-29 · 0000831641-26-000011

  7. 8-K · Current report

    Report date 2026-04-29 · 0001104659-26-051486 · Items 2.02,8.01,9.01

  8. 4 · Ownership change

    Report date 2026-04-27 · 0001349767-26-000006

  9. 8-K · Current report

    Report date 2026-03-26 · 0001104659-26-035179 · Items 5.02,8.01,9.01

  10. 4 · Ownership change

    Report date 2026-03-16 · 0001592089-26-000004

  11. 4 · Ownership change

    Report date 2026-02-19 · 0001902712-26-000002

  12. 4 · Ownership change

    Report date 2026-02-19 · 0001721930-26-000003

  13. 8-K · Current report

    Report date 2026-02-19 · 0001104659-26-018205 · Items 5.02,5.07,9.01

  14. 4 · Ownership change

    Report date 2026-02-10 · 0001628280-26-007775

  15. 10-Q · Quarterly report

    Report date 2025-12-28 · 0000831641-26-000005

  16. 8-K · Current report

    Report date 2026-01-28 · 0001104659-26-007481 · Items 2.02,8.01,9.01

  17. DEF 14A · Proxy statement

    Report date 2026-02-19 · 0001104659-26-002458

  18. 8-K · Current report

    Report date 2026-01-06 · 0001104659-26-001352 · Items 5.02,8.01,9.01

  19. 8-K · Current report

    Report date 2025-12-22 · 0001104659-25-123764 · Items 5.02,8.01,9.01

  20. 10-K · Annual report

    Report date 2025-09-28 · 0000831641-25-000032

  21. 8-K · Current report

    Report date 2025-11-12 · 0001104659-25-110537 · Items 2.02,8.01,9.01

  22. 8-K · Current report

    Report date 2025-10-07 · 0001104659-25-097567 · Items 5.02,8.01,9.01

  23. 10-Q · Quarterly report

    Report date 2025-06-29 · 0000831641-25-000023

  24. 8-K · Current report

    Report date 2025-07-30 · 0001104659-25-072237 · Items 2.02,8.01,9.01

  25. 10-Q · Quarterly report

    Report date 2025-03-30 · 0000831641-25-000019

  26. 8-K · Current report

    Report date 2025-05-05 · 0001104659-25-045597 · Items 1.01,2.02,2.03,3.03,8.01,9.01

  27. 8-K · Current report

    Report date 2025-02-24 · 0001104659-25-019107 · Items 5.02,5.07

  28. 10-Q · Quarterly report

    Report date 2024-12-29 · 0000831641-25-000005

  29. 8-K · Current report

    Report date 2025-01-29 · 0001104659-25-007277 · Items 2.02,8.01,9.01

  30. 8-K · Current report

    Report date 2025-01-17 · 0001104659-25-004551 · Items 8.01,9.01

  31. DEF 14A · Proxy statement

    Report date 2025-02-27 · 0001104659-25-004095

  32. SC 13G · Ownership disclosure

    0001193125-24-262938

  33. 10-K · Annual report

    Report date 2024-09-29 · 0000831641-24-000063

  34. 8-K · Current report

    Report date 2024-11-13 · 0001104659-24-117683 · Items 2.02,8.01,9.01

  35. 8-K · Current report

    Report date 2024-09-06 · 0001104659-24-097783 · Items 5.03,9.01

  36. 8-K · Current report

    Report date 2024-07-29 · 0001104659-24-085407 · Items 5.02,8.01,9.01

  37. 10-Q · Quarterly report

    Report date 2024-06-30 · 0000831641-24-000035

  38. 8-K · Current report

    Report date 2024-07-31 · 0001104659-24-084338 · Items 2.02,8.01,9.01

  39. 8-K · Current report

    Report date 2024-05-21 · 0001104659-24-065180 · Items 5.02

  40. 10-Q · Quarterly report

    Report date 2024-03-31 · 0000831641-24-000029

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-09-07 · 2026 Q2: 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: 1 transaction rows1PSale: 0 transaction rows0SGrant / award: 1 transaction rows1AExercise / conversion: 2 transaction rows2MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

4 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-06-04
2026-06-05
Volpi Kirsten MM · Exercise / conversion
Acquired
COMMON STOCK1700.09.59
2026-06-04
2026-06-05
Volpi Kirsten MM · Exercise / conversion
Disposed
STOCK OPTION (RIGHT TO BUY)
Derivative security
1700.00.0
2026-05-15
2026-05-15
Feeler Jeffrey RP · Purchase
Acquired
COMMON STOCK1900.026.41
2026-04-27
2026-04-28
Thornburg Eric WA · Grant / award
Acquired
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)
Derivative security
1259.00.0

Identity & relationships

Wikidata structured data · retrieved 2026-09-07 · 1611 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 · 0000831641TETRA TECH INC
Tetra Tech (Brazil)

Showing 1 of 1 imported Wikidata subsidiary claims. Additional aliases appear below.

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

Legal Entity Identifier
549300UJ1LP7JGJC5P32
GLEIF legal name
TETRA TECH, INC.
Entity / LEI registration status
ACTIVE / ISSUED
Reference data updated
2026-01-29T07:51:28Z

direct-parent: no parent LEI supplied

ultimate-parent: no parent LEI supplied

GLEIF legal entity reference data · retrieved 2026-09-07 · 1177 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • Tetra Tech · alias · wikidata
  • Tetra Tech (United States) · alias · wikidata
  • Tetra Tech (Brazil) · subsidiary · wikidata
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Revenue in constant purchasing power

USD revenue expressed in 2026-07 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
2025-09-28$5.44B$5.68B
2024-09-29$5.20B$5.57B
2023-10-01$4.52B$5.00B
2022-10-02$3.50B$4.06B
2021-10-03$3.21B$4.02B
2020-09-27$2.99B$3.88B
2019-09-29$3.11B$4.08B
2018-09-30$2.96B$3.96B

Bureau of Labor Statistics · retrieved 2026-09-08 · 9 selected series; gaps remain missing

Explore the CPI history ↗