A business in context

ECVT research notebook

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

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-20 · 8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-09-10 · 0001708035-26-000099

  2. 4 · Ownership change

    Report date 2026-08-24 · 0001193125-26-368534

  3. 8-K · Current report

    Report date 2026-08-21 · 0001193125-26-361724 · Items 5.02,7.01,9.01

  4. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001708035-26-000090

  5. 8-K · Current report

    Report date 2026-08-05 · 0001708035-26-000087 · Items 2.02,9.01

  6. 8-K · Current report

    Report date 2026-06-30 · 0001193125-26-290479 · Items 1.01,2.03,8.01,9.01

  7. 4 · Ownership change

    Report date 2026-06-02 · 0001708035-26-000079

  8. 4 · Ownership change

    Report date 2026-05-26 · 0001708035-26-000077

  9. 8-K · Current report

    Report date 2026-05-20 · 0001708035-26-000070 · Items 5.07

  10. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001708035-26-000067

  11. 8-K · Current report

    Report date 2026-05-05 · 0001708035-26-000063 · Items 2.02,9.01

  12. 8-K · Current report

    Report date 2026-05-01 · 0001193125-26-202584 · Items 1.01,9.01

  13. DEF 14A · Proxy statement

    Report date 2026-05-20 · 0001140361-26-014838

  14. 4 · Ownership change

    Report date 2026-03-12 · 0001708035-26-000059

  15. 4 · Ownership change

    Report date 2026-03-04 · 0001708035-26-000057

  16. 4 · Ownership change

    Report date 2026-03-04 · 0001708035-26-000056

  17. 10-K · Annual report

    Report date 2025-12-31 · 0001708035-26-000053

  18. 8-K · Current report

    Report date 2026-02-26 · 0001708035-26-000047 · Items 2.02,9.01

  19. 4 · Ownership change

    Report date 2026-02-03 · 0001708035-26-000042

  20. 8-K · Current report

    Report date 2025-12-31 · 0001708035-26-000010 · Items 2.01,2.04,5.02,9.01

  21. 8-K · Current report

    Report date 2025-12-08 · 0001193125-25-317640 · Items 5.02

  22. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001708035-25-000118

  23. 8-K · Current report

    Report date 2025-11-04 · 0001708035-25-000115 · Items 2.02,9.01

  24. 8-K · Current report

    Report date 2025-09-10 · 0001193125-25-201371 · Items 1.01,9.01

  25. 8-K · Current report

    Report date 2025-08-11 · 0001193125-25-177926 · Items 5.02

  26. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001708035-25-000108

  27. 8-K · Current report

    Report date 2025-08-07 · 0001708035-25-000104 · Items 2.02,9.01

  28. 8-K · Current report

    Report date 2025-05-08 · 0001708035-25-000086 · Items 5.07

  29. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001708035-25-000083

  30. 8-K · Current report

    Report date 2025-05-01 · 0001708035-25-000076 · Items 2.02,9.01

  31. 8-K · Current report

    Report date 2025-04-10 · 0001193125-25-078475 · Items 1.01,2.03,9.01

  32. DEF 14A · Proxy statement

    Report date 2025-05-08 · 0001140361-25-012747

  33. 10-K · Annual report

    Report date 2024-12-31 · 0001708035-25-000070

  34. 8-K · Current report

    Report date 2025-02-27 · 0001708035-25-000063 · Items 2.02,9.01

  35. 8-K · Current report

    Report date 2025-01-30 · 0001193125-25-017743 · Items 1.01,2.03,9.01

  36. 8-K · Current report

    Report date 2024-12-10 · 0001708035-24-000120 · Items 5.02

  37. SC 13G/A · Ownership disclosure

    0002012383-24-003991

  38. 10-Q · Quarterly report

    Report date 2024-09-30 · 0001708035-24-000117

  39. 8-K · Current report

    Report date 2024-10-31 · 0001708035-24-000114 · Items 2.02,9.01

  40. SC 13G/A · Ownership disclosure

    0002012383-24-000883

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-15 · 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: 1 transaction rows1PSale: 0 transaction rows0SGrant / award: 1 transaction rows1AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

2 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-10
2026-09-14
Humble Patti A.P · Purchase
Acquired
Common Stock24875.010.05
2026-08-24
2026-08-26
Bergman LaurieA · Grant / award
Acquired
Common Stock43353.00.0

Identity & relationships

Wikidata structured data · retrieved 2026-10-15 · 1663 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 · 0001708035Ecovyst Inc.

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

No verified LEI join available.

GLEIF legal entity reference data · retrieved 2026-10-15 · 1199 checked identities; 0 unavailable records

Search names and former names
  • PQ Group Holdings Inc. · former SEC name · 2017-06-09 to 2021-07-23

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$598.29M$642.63M
2023-12-31$584.85M$646.68M
2022-12-31$820.16M$944.11M
2021-12-31$611.20M$759.88M
2020-12-31$495.92M$645.62M
2019-12-31$532.75M$702.08M
2018-12-31$1.23B$1.65B
2017-12-31$1.47B$2.02B

Bureau of Labor Statistics · retrieved 2026-10-20 · 9 selected series; gaps remain missing

Explore the CPI history ↗