A business in context

MPWR research notebook

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

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-22 · 8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-09-28 · 0001214659-26-012375

  2. 8-K · Current report

    Report date 2026-09-10 · 0001628280-26-061318 · Items 8.01,9.01

  3. 4 · Ownership change

    Report date 2026-08-31 · 0001214659-26-011363

  4. 4 · Ownership change

    Report date 2026-08-24 · 0001214659-26-010932

  5. 4 · Ownership change

    Report date 2026-08-24 · 0001214659-26-010853

  6. 4 · Ownership change

    Report date 2026-08-17 · 0001214659-26-010630

  7. 4 · Ownership change

    Report date 2026-08-11 · 0001214659-26-010101

  8. 4 · Ownership change

    Report date 2026-08-04 · 0001214659-26-009744

  9. 4 · Ownership change

    Report date 2026-08-05 · 0001214659-26-009739

  10. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001628280-26-053275

  11. 8-K · Current report

    Report date 2026-07-30 · 0001628280-26-051029 · Items 2.02,9.01

  12. 8-K · Current report

    Report date 2026-06-11 · 0001628280-26-042820 · Items 5.07,8.01,9.01

  13. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001437749-26-014647

  14. 8-K · Current report

    Report date 2026-04-30 · 0001437749-26-014182 · Items 2.02,9.01

  15. DEF 14A · Proxy statement

    Report date 2026-06-11 · 0001437749-26-014084

  16. 10-K · Annual report

    Report date 2025-12-31 · 0001437749-26-006113

  17. 8-K · Current report

    Report date 2026-02-26 · 0001437749-26-006112 · Items 4.02

  18. 8-K · Current report

    Report date 2026-02-03 · 0001437749-26-003191 · Items 2.02,5.02,8.01,9.01

  19. 8-K · Current report

    Report date 2025-12-12 · 0001437749-25-037726 · Items 8.01,9.01

  20. 8-K · Current report

    Report date 2025-11-19 · 0001437749-25-035995 · Items 5.03,9.01

  21. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001437749-25-033332

  22. 8-K · Current report

    Report date 2025-10-30 · 0001437749-25-032411 · Items 2.02,9.01

  23. 8-K · Current report

    Report date 2025-09-11 · 0001437749-25-028841 · Items 8.01,9.01

  24. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001437749-25-024602

  25. 8-K · Current report

    Report date 2025-07-31 · 0001437749-25-024185 · Items 2.02,9.01

  26. 8-K · Current report

    Report date 2025-06-12 · 0001437749-25-020473 · Items 5.03,5.07,8.01,9.01

  27. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001437749-25-014522

  28. 8-K · Current report

    Report date 2025-05-01 · 0001437749-25-014082 · Items 2.02,9.01

  29. DEF 14A · Proxy statement

    Report date 2025-06-12 · 0001437749-25-013745

  30. 8-K · Current report

    Report date 2025-03-26 · 0001437749-25-009324 · Items 5.03,9.01

  31. 8-K · Current report

    Report date 2025-03-20 · 0001437749-25-008519 · Items 7.01,9.01

  32. 10-K · Annual report

    Report date 2024-12-31 · 0001437749-25-005903

  33. 8-K · Current report

    Report date 2025-02-06 · 0001437749-25-003024 · Items 2.02,8.01,9.01

  34. 8-K · Current report

    Report date 2024-12-13 · 0001437749-24-037471 · Items 8.01,9.01

  35. 8-K · Current report

    Report date 2024-11-11 · 0001437749-24-034352 · Items 7.01

  36. SC 13G/A · Ownership disclosure

    0000315066-24-002795

  37. 10-Q · Quarterly report

    Report date 2024-09-30 · 0001437749-24-033608

  38. 8-K · Current report

    Report date 2024-10-30 · 0001437749-24-032609 · Items 2.02,9.01

  39. 8-K · Current report

    Report date 2024-10-21 · 0001437749-24-031789 · Items 5.02

  40. 8-K · Current report

    Report date 2024-09-13 · 0001437749-24-029143 · Items 8.01,9.01

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: 33 transaction rows33SGrant / award: 1 transaction rows1AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 4 transaction rows4G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

39 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-28
2026-09-30
Hsing Michael
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock596.01323.31
2026-09-28
2026-09-30
Hsing Michael
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2121.01328.54
2026-09-28
2026-09-30
Hsing Michael
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1111.01333.34
2026-09-28
2026-09-30
Hsing Michael
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock130.01356.94
2026-09-28
2026-09-30
Hsing Michael
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock5783.01343.76
2026-09-28
2026-09-30
Hsing Michael
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock6343.01347.15
2026-09-28
2026-09-30
Hsing Michael
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock10967.01351.43
2026-09-28
2026-09-30
Hsing Michael
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2949.01338.66
2026-08-31
2026-09-02
Tseng SariaG · Gift
Disposed
Common Stock2000.00.0
2026-08-31
2026-09-02
Tseng SariaG · Gift
Acquired
Common Stock2000.00.0
2026-08-24
2026-08-26
DEAN ROBERT W IIS · Sale
Disposed
Common Stock32.01297.72
2026-08-24
2026-08-26
DEAN ROBERT W IIJ · Other (see filing)
Disposed
Common Stock5.00.0
2026-08-24
2026-08-25
CHANG KUO WEI HERBERTS · Sale
Disposed
Common Stock50.01281.57
2026-08-17
2026-08-19
DEAN ROBERT W IIS · Sale
Disposed
Common Stock6.01413.64
2026-08-11
2026-08-13
CHANG KUO WEI HERBERTS · Sale
Disposed
Common Stock50.01420.0
2026-08-05
2026-08-06
DEAN ROBERT W IIS · Sale
Disposed
Common Stock105.01344.27
2026-08-04
2026-08-06
Sciammas MauriceG · Gift
Acquired
Common Stock25000.00.0
2026-08-04
2026-08-06
Sciammas MauriceG · Gift
Disposed
Common Stock25000.00.0
2026-08-03
2026-08-05
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock30.01343.94
2026-07-25
2026-07-28
DEAN ROBERT W IIA · Grant / award
Acquired
Common Stock1359.00.0
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock240.01369.18
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock472.01375.47
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock418.01378.73
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock410.01384.11
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1864.01344.16
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock213.01396.16
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock117.01400.45
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock110.01405.71
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock527.01314.03
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock274.01318.42
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock409.01323.93
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock464.01329.3
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock776.01334.59
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1460.01339.59
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock50.01359.36
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock5640.01352.95
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1506.01348.91
2026-07-15
2026-07-17
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock50.01388.19
2026-07-01
2026-07-06
Sciammas Maurice
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock30.01351.61

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 · 0001280452MONOLITHIC POWER SYSTEMS, INC.

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

Legal Entity Identifier
529900TB7O85LSZ1XU31
GLEIF legal name
Monolithic Power Systems, Inc.
Entity / LEI registration status
ACTIVE / LAPSED
Reference data updated
2021-07-19T05:07:28Z

direct-parent: no parent LEI supplied

ultimate-parent: no parent LEI supplied

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

Search names and former names

View Wikidata identity and references ↗

  • Monolithic Power Systems · alias · wikidata
  • MONOLITHIC POWER SYSTEMS INC · former SEC name · 2004-07-13 to 2026-07-15
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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$2.21B$2.37B
2023-12-31$1.82B$2.01B
2022-12-31$1.79B$2.07B
2021-12-31$1.21B$1.50B
2020-12-31$844.45M$1.10B
2019-12-31$627.92M$827.51M
2018-12-31$582.38M$781.42M
2017-12-31$470.93M$647.32M

Bureau of Labor Statistics · retrieved 2026-10-22 · 9 selected series; gaps remain missing

Explore the CPI history ↗