A business in context

ARM 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 2026-09-21 · 0001973239-26-000136

  2. 6-K · Current report

    Report date 2026-09-18 · 0001973239-26-000135

  3. 4 · Ownership change

    Report date 2026-09-14 · 0001973239-26-000133

  4. 4 · Ownership change

    Report date 2026-09-09 · 0001973239-26-000130

  5. 6-K · Current report

    Report date 2026-09-10 · 0001973239-26-000128

  6. 4 · Ownership change

    Report date 2026-08-27 · 0001973239-26-000122

  7. 4 · Ownership change

    Report date 2026-08-17 · 0001973239-26-000121

  8. 4 · Ownership change

    Report date 2026-08-07 · 0001973239-26-000119

  9. 6-K · Current report

    Report date 2026-08-10 · 0001973239-26-000117

  10. 6-K · Current report

    Report date 2026-06-30 · 0001973239-26-000114

  11. 6-K · Current report

    Report date 2026-07-29 · 0001973239-26-000113

  12. 4 · Ownership change

    Report date 2026-06-02 · 0001973239-26-000107

  13. 4 · Ownership change

    Report date 2026-06-01 · 0001973239-26-000105

  14. 20-F · Annual report

    Report date 2026-03-31 · 0001973239-26-000097

  15. 6-K · Current report

    Report date 2026-05-06 · 0001973239-26-000062

  16. 6-K · Current report

    Report date 2026-04-21 · 0001973239-26-000059

  17. 6-K · Current report

    Report date 2026-03-24 · 0001973239-26-000052

  18. 6-K · Current report

    Report date 2026-03-24 · 0001973239-26-000050

  19. 6-K · Current report

    Report date 2025-12-31 · 0001973239-26-000006

  20. 6-K · Current report

    Report date 2026-02-04 · 0001973239-26-000005

  21. 6-K · Current report

    Report date 2025-09-30 · 0001973239-25-000043

  22. 6-K · Current report

    Report date 2025-11-05 · 0001973239-25-000042

  23. 6-K · Current report

    Report date 2025-09-18 · 0001973239-25-000035

  24. 6-K · Current report

    Report date 2025-09-10 · 0001973239-25-000033

  25. 6-K · Current report

    Report date 2025-08-11 · 0001973239-25-000027

  26. 6-K · Current report

    Report date 2025-06-30 · 0001973239-25-000024

  27. 6-K · Current report

    Report date 2025-07-30 · 0001973239-25-000023

  28. 20-F · Annual report

    Report date 2025-03-31 · 0001973239-25-000016

  29. 6-K · Current report

    Report date 2025-05-07 · 0001973239-25-000010

  30. 6-K · Current report

    Report date 2024-12-31 · 0001973239-25-000007

  31. 6-K · Current report

    Report date 2025-02-05 · 0001973239-25-000006

  32. 6-K · Current report

    Report date 2024-09-30 · 0001973239-24-000040

  33. 6-K · Current report

    Report date 2024-11-07 · 0001973239-24-000038

  34. 6-K · Current report

    Report date 2024-11-06 · 0001973239-24-000036

  35. 6-K · Current report

    Report date 2024-09-12 · 0001973239-24-000029

  36. 6-K · Current report

    Report date 2024-08-12 · 0001193125-24-199006

  37. 6-K · Current report

    Report date 2024-06-30 · 0001973239-24-000019

  38. 6-K · Current report

    Report date 2024-07-31 · 0001973239-24-000017

  39. 20-F · Annual report

    Report date 2024-03-31 · 0001973239-24-000012

  40. 6-K · Current report

    Report date 2024-05-08 · 0001973239-24-000007

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: 0 transaction rows0PSale: 2 transaction rows2SGrant / award: 3 transaction rows3AExercise / conversion: 4 transaction rows4MTax / exercise payment: 1 transaction rows1FGift: 1 transaction rows1G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

11 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-21
2026-09-23
Child Jason
10b5-1 checkbox reported
S · Sale
Disposed
Ordinary Shares10400.0300.0
2026-09-14
2026-09-16
Abbey WilliamA · Grant / award
Acquired
Restricted Stock Units
Derivative security
17288.00.0
2026-09-09
2026-09-10
Haas Rene A.A · Grant / award
Acquired
Restricted Stock Units
Derivative security
425000.00.0
2026-08-31
2026-09-10
Haas Rene A.A · Grant / award
Acquired
Ordinary Shares64.0108.33
2026-08-27
2026-08-31
Child Jason
10b5-1 checkbox reported
S · Sale
Disposed
Ordinary Shares10400.0255.33
2026-08-17
2026-08-18
Bartels Laura KathleenM · Exercise / conversion
Acquired
Ordinary Shares819.0n/a
2026-08-17
2026-08-18
Bartels Laura KathleenM · Exercise / conversion
Acquired
Ordinary Shares862.0n/a
2026-08-17
2026-08-18
Bartels Laura KathleenF · Tax / exercise payment
Disposed
Ordinary Shares856.0271.43
2026-08-17
2026-08-18
Bartels Laura KathleenM · Exercise / conversion
Disposed
Restricted Stock Units
Derivative security
819.00.0
2026-08-17
2026-08-18
Bartels Laura KathleenM · Exercise / conversion
Disposed
Restricted Stock Units
Derivative security
862.00.0
2026-08-07
2026-08-11
Sine JeffreyG · Gift
Disposed
Ordinary Shares9572.00.0

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 · 0001973239ARM HOLDINGS PLC /UK

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
  • Arm Holdings Ltd · former SEC name · 2023-04-28 to 2023-09-01

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
2025-03-31$4.01B$4.28B
2024-03-31$3.23B$3.55B
2023-03-31$2.68B$3.04B
2022-03-31$2.70B$3.30B

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

Explore the CPI history ↗