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

  1. 8-K · Current report

    Report date 2026-10-12 · 0001877939-26-000089 · Items 8.01,9.01

  2. 4 · Ownership change

    Report date 2026-10-01 · 0001877939-26-000087

  3. 4 · Ownership change

    Report date 2026-10-01 · 0001877939-26-000086

  4. 4 · Ownership change

    Report date 2026-10-01 · 0001877939-26-000085

  5. 4 · Ownership change

    Report date 2026-10-01 · 0001877939-26-000084

  6. 4 · Ownership change

    Report date 2026-09-09 · 0001877939-26-000079

  7. 8-K · Current report

    Report date 2026-09-09 · 0001877939-26-000078 · Items 8.01,9.01

  8. 8-K · Current report

    Report date 2026-08-31 · 0001877939-26-000075 · Items 8.01,9.01

  9. 8-K · Current report

    Report date 2026-08-06 · 0001877939-26-000073 · Items 2.02,9.01

  10. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001877939-26-000070

  11. 8-K · Current report

    Report date 2026-07-31 · 0001877939-26-000065 · Items 8.01,9.01

  12. 4 · Ownership change

    Report date 2026-07-01 · 0001877939-26-000061

  13. 4 · Ownership change

    Report date 2026-07-01 · 0001877939-26-000060

  14. 4 · Ownership change

    Report date 2026-07-01 · 0001877939-26-000059

  15. 8-K · Current report

    Report date 2026-07-01 · 0001877939-26-000057 · Items 1.01,5.02,9.01

  16. 8-K · Current report

    Report date 2026-06-23 · 0001877939-26-000052 · Items 8.01,9.01

  17. 8-K · Current report

    Report date 2026-06-15 · 0001877939-26-000050 · Items 8.01,9.01

  18. 8-K · Current report

    Report date 2026-05-19 · 0001877939-26-000044 · Items 5.07

  19. 8-K · Current report

    Report date 2026-05-18 · 0001877939-26-000040 · Items 7.01,9.01

  20. 8-K · Current report

    Report date 2026-05-08 · 0001877939-26-000036 · Items 2.02,7.01,9.01

  21. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001877939-26-000033

  22. 8-K · Current report

    Report date 2026-04-23 · 0001877939-26-000028 · Items 8.01,9.01

  23. DEF 14A · Proxy statement

    Report date 2026-04-07 · 0001877939-26-000025

  24. 10-K · Annual report

    Report date 2025-12-31 · 0001877939-26-000016

  25. 8-K · Current report

    Report date 2026-03-04 · 0001877939-26-000012 · Items 2.02,9.01

  26. 8-K · Current report

    Report date 2026-02-17 · 0001877939-26-000009 · Items 8.01,9.01

  27. 8-K · Current report

    Report date 2026-01-07 · 0001877939-26-000007 · Items 8.01,9.01

  28. 8-K · Current report

    Report date 2026-01-01 · 0001877939-26-000004 · Items 5.02,9.01

  29. 8-K · Current report

    Report date 2025-12-08 · 0001877939-25-000126 · Items 5.02,8.01,9.01

  30. 8-K · Current report

    Report date 2025-11-13 · 0001877939-25-000124 · Items 8.01,9.01

  31. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001877939-25-000115

  32. 8-K · Current report

    Report date 2025-11-07 · 0001877939-25-000114 · Items 2.02,9.01

  33. 8-K · Current report

    Report date 2025-10-31 · 0001877939-25-000110 · Items 8.01,9.01

  34. 8-K · Current report

    Report date 2025-10-20 · 0001877939-25-000108 · Items 8.01,9.01

  35. 8-K · Current report

    Report date 2025-10-14 · 0001877939-25-000106 · Items 8.01,9.01

  36. 8-K · Current report

    Report date 2025-08-19 · 0001877939-25-000089 · Items 8.01,9.01

  37. 8-K · Current report

    Report date 2025-08-14 · 0001877939-25-000087 · Items 8.01,9.01

  38. 8-K · Current report

    Report date 2025-08-12 · 0001877939-25-000085 · Items 8.01,9.01

  39. 8-K · Current report

    Report date 2025-08-08 · 0001877939-25-000083 · Items 2.02,9.01

  40. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001877939-25-000082

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: 6 transaction rows6PSale: 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

7 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-09
2026-09-09
Merriman AndrewP · Purchase
Acquired
Common Stock40000.00.62
2026-09-09
2026-09-09
Merriman AndrewP · Purchase
Acquired
Common Stock10000.00.62
2026-07-01
2026-07-02
Merriman AndrewP · Purchase
Acquired
Common Stock1202.00.61
2026-07-01
2026-07-02
Bell David TP · Purchase
Acquired
Common Stock1202.00.61
2026-07-01
2026-07-02
MARTIN TAMMY LP · Purchase
Acquired
Common Stock1202.00.61
2026-07-01
2026-07-02
Ives Glen RP · Purchase
Acquired
Common Stock1262.00.61
2026-07-01
2026-07-02
Ives Glen RA · Grant / award
Acquired
Stock Options
Derivative security
773630.0n/a

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 · 0001877939Castellum, 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

    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$44.76M$48.08M
    2023-12-31$45.24M$50.03M
    2022-12-31$42.19M$48.57M
    2021-12-31$25.07M$31.17M
    2020-12-31$13.34M$17.37M

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

    Explore the CPI history ↗