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SEC submissions · retrieved 2026-10-24 · 8022 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-09-16 · 0001628280-26-062552

  2. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001628280-26-054813

  3. 8-K · Current report

    Report date 2026-08-07 · 0001628280-26-054588 · Items 2.02,7.01,9.01

  4. 4 · Ownership change

    Report date 2026-06-26 · 0001628280-26-046597

  5. 8-K · Current report

    Report date 2026-06-25 · 0001628280-26-045745 · Items 5.07

  6. 4 · Ownership change

    Report date 2026-06-17 · 0001398344-26-011119

  7. 4 · Ownership change

    Report date 2026-06-17 · 0001398344-26-011116

  8. 4 · Ownership change

    Report date 2026-06-17 · 0001398344-26-011113

  9. 4 · Ownership change

    Report date 2026-06-17 · 0001398344-26-011108

  10. 4 · Ownership change

    Report date 2026-06-11 · 0001628280-26-043211

  11. 4 · Ownership change

    Report date 2026-05-26 · 0001628280-26-038861

  12. DEF 14A · Proxy statement

    Report date 2025-12-31 · 0001628280-26-035580

  13. 8-K · Current report

    Report date 2026-05-13 · 0001628280-26-035328 · Items 4.01,9.01

  14. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001628280-26-033686

  15. 8-K · Current report

    Report date 2026-05-11 · 0001628280-26-033142 · Items 2.02,9.01

  16. 10-K · Annual report

    Report date 2025-12-31 · 0001628280-26-015693

  17. 8-K · Current report

    Report date 2026-03-06 · 0001628280-26-015465 · Items 2.02,9.01

  18. 8-K · Current report

    Report date 2025-12-02 · 0001679268-25-000046 · Items 1.01,2.01,7.01,9.01

  19. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001679268-25-000039

  20. 8-K · Current report

    Report date 2025-10-31 · 0001679268-25-000036 · Items 2.02,9.01

  21. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001628280-25-039262

  22. 8-K · Current report

    Report date 2025-08-08 · 0001628280-25-039122 · Items 2.02,9.01

  23. 8-K · Current report

    Report date 2025-06-30 · 0001628280-25-034133 · Items 1.01,5.02,9.01

  24. 8-K · Current report

    Report date 2025-06-24 · 0001628280-25-033509 · Items 5.02

  25. 8-K · Current report

    Report date 2025-06-16 · 0001628280-25-032406 · Items 1.01,2.01,2.06,9.01

  26. 8-K · Current report

    Report date 2025-06-11 · 0001628280-25-031000 · Items 5.07

  27. 8-K · Current report

    Report date 2025-05-30 · 0001628280-25-029661 · Items 5.02

  28. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001628280-25-023134

  29. 8-K · Current report

    Report date 2025-05-07 · 0001628280-25-022883 · Items 2.02,7.01,9.01

  30. DEF 14A · Proxy statement

    Report date 2024-12-31 · 0001679268-25-000021

  31. 8-K · Current report

    Report date 2025-04-11 · 0001679268-25-000015 · Items 1.01,2.01,5.02,7.01,9.01

  32. 8-K · Current report

    Report date 2025-03-07 · 0001679268-25-000012 · Items 4.01,9.01

  33. 10-K · Annual report

    Report date 2024-12-31 · 0001679268-25-000009

  34. 8-K · Current report

    Report date 2025-03-07 · 0001679268-25-000005 · Items 2.02,7.01,9.01

  35. 8-K · Current report

    Report date 2025-02-10 · 0001679268-25-000003 · Items 5.02

  36. SC 13G/A · Ownership disclosure

    0000919574-24-006527

  37. 8-K · Current report

    Report date 2024-11-06 · 0001679268-24-000080 · Items 5.02,7.01,9.01

  38. 10-Q · Quarterly report

    Report date 2024-09-30 · 0001679268-24-000077

  39. 8-K · Current report

    Report date 2024-11-01 · 0001679268-24-000074 · Items 2.02,7.01,9.01

  40. 8-K · Current report

    Report date 2024-10-16 · 0001679268-24-000071 · Items 1.01,2.03,7.01,9.01

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: 1 transaction rows1PSale: 0 transaction rows0SGrant / award: 0 transaction rows0AExercise / 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
2026-09-16
2026-09-17
Plaumann Mark LawrenceP · Purchase
Acquired
Common Stock5000.03.0
2026-06-26
2026-07-01
Lancaster PhillipJ · Other (see filing)
Acquired
Common Stock68152.00.0

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 · 0001679268MAMMOTH ENERGY SERVICES, 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 2026-10-23 · 1197 checked identities; 0 unavailable records

Search names and former names

    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$45.60M$48.98M
    2023-12-31$309.49M$342.22M
    2022-12-31$362.09M$416.81M
    2021-12-31$228.96M$284.66M
    2020-12-31$313.08M$407.58M
    2019-12-31$625.01M$823.68M
    2018-12-31$1.69B$2.27B
    2017-12-31$691.50M$950.50M

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

    Explore the CPI history ↗