{
 "as_of": "2026-11-08",
 "cmr": "us-cm-kg/NASDAQ/MPWR",
 "fence": "The page is the record's research on the issuer — no analyst, no rating, no view.",
 "markdown": "The page is the record's research on the issuer — no analyst, no rating, no view.\n\n# MONOLITHIC POWER SYSTEMS, INC. (NASDAQ: MPWR) — research page\n\nAs of 2026-11-08 · us-cm-kg · record version 1\n\n## Identity and listing\n\nThe issuer is MONOLITHIC POWER SYSTEMS, INC., listed on NASDAQ under ticker MPWR. Its ISIN is US6098391054 and its LEI is 529900TB7O85LSZ1XU31. Its security type is Corporate, its segment is not on the record, and its sector is 3674 Semiconductors & Related Devices. Its jurisdiction is United States, Delaware. Its listing status is listed, not halted.\n\n## The disclosure read\n\nThe record holds 155 filings in the window 2025-11-08 to 2026-11-08, across 82 filing days. The median gap between filing days is 2 days. The latest filing is dated 2026-11-05, 3 days before the record date of 2026-11-08, and is of type directors_dealings. By type, the record holds 76 directors_dealings, 64 regulatory_filing, 8 results, 3 agm_egm, 2 ad_hoc and 2 corporate_news. The NASDAQ exchange median is 52 filings, a median cadence gap of 6.0 days and a median latency of 5.0 days. The sector median for 3674 Semiconductors & Related Devices is 96.0 filings, a median cadence gap of 4.0 days and a median latency of 4.0 days.\n\n## Auditor\n\nThe auditor of record is Ernst & Young LLP, located in San Jose, California. The record holds no auditor changes.\n\n## Events and halts\n\nThe record holds no listing, delisting or name change lines. The domicile change is not on the record, since EDGAR states no dated change of state of incorporation on a filing line. The segment move is not on the record, since the exchanges' tier transfers are not EDGAR filings. The halt flag reads listed, not halted.\n\n## Orderability\n\nThe outcome is not determinable. The chapter's orderability section carries no client categories, so the outcome cannot name its client category. The rule version is acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1, and the chapter is as of 2026-11-04.\n\n## Coverage\n\nNo research houses were found on the issuer's investor-relations pages read. The count is 0.\n\n## Open research\n\nNo openly published research notes were found on the record. The count is 0.\n\n## Licensed\n\nLicensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded.\n\n## As-of depth\n\nThe vintage is sealed. The issuer's sealed years are 2021, 2022, 2023, 2024, 2025 and 2026. The market's earliest sealed date is 2021-01-04, and the live record began on 2026-09-12.\n\n## Sources\n\n9 source pages are named on this page; every value above carries its own source page and read date in the numbers.\n\n- https://www.sec.gov/files/company_tickers_exchange.json (identity.exchange)\n- https://mapping.gleif.org/api/v2/isin-lei/latest (identity.isin)\n- https://data.sec.gov/submissions/CIK0001280452.json (identity.jurisdiction)\n- https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei)\n- https://mcp.us-cm-kg.ai/events/NASDAQ/MPWR (the disclosure lines)\n- https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts (the halt flag)\n- https://www.sec.gov/Archives/edgar/data/1280452/000143774926006113/mpwr20251231_10k.htm (the auditor)\n- https://mcp.us-cm-kg.ai/book/aio.json (the orderability chapter)\n- https://mcp.us-cm-kg.ai/record/NASDAQ/MPWR (the record)\n",
 "market": "US",
 "node": "us-cm-kg",
 "numbers": {
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   "live_record_began": "2026-09-12",
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   "sealed": true
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   "auditor": {
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    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://www.sec.gov/Archives/edgar/data/1280452/000143774926006113/mpwr20251231_10k.htm",
    "state": "sourced",
    "value": "Ernst & Young LLP"
   },
   "auditor_firm_id": {
    "read_by": "EDGAR 10-K cover page iXBRL tag (dei:AuditorName, dei:AuditorLocation, dei:AuditorFirmId, dei:DocumentPeriodEndDate)",
    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://www.sec.gov/Archives/edgar/data/1280452/000143774926006113/mpwr20251231_10k.htm",
    "state": "sourced",
    "value": "42"
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   "auditor_location": {
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    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://www.sec.gov/Archives/edgar/data/1280452/000143774926006113/mpwr20251231_10k.htm",
    "state": "sourced",
    "value": "San Jose, California"
   },
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  "cmr": "us-cm-kg/NASDAQ/MPWR",
  "coverage": {
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   "pages_checked": [],
   "read_by": "Perplexity sonar (search) · page read by this rail",
   "read_date": "2026-11-11",
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     "name": "NASDAQ"
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     "median_latency_days": 4,
     "name": "3674 Semiconductors & Related Devices"
    }
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    "results": 8
   },
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   "filings": 155,
   "latency_days": 3,
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     "category": "4",
     "date": "2026-11-05",
     "source": "https://www.sec.gov/Archives/edgar/data/1280452/000121465926013798/xslF345X06/marketforms-74235.xml",
     "title": "4 — PRIMARY DOCUMENT",
     "type": "directors_dealings"
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    {
     "category": "SCHEDULE 13G/A",
     "date": "2026-11-05",
     "source": "https://www.sec.gov/Archives/edgar/data/1280452/000031506626002809/xslSCHEDULE_13G_X02/primary_doc.xml",
     "title": "SCHEDULE 13G/A",
     "type": "regulatory_filing"
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    {
     "category": "10-Q",
     "date": "2026-11-03",
     "source": "https://www.sec.gov/Archives/edgar/data/1280452/000162828026069440/mpwr-20260930.htm",
     "title": "10-Q — 10-Q",
     "type": "results"
    },
    {
     "category": "8-K",
     "date": "2026-10-29",
     "source": "https://www.sec.gov/Archives/edgar/data/1280452/000162828026068202/mpwr-20261027.htm",
     "title": "8-K — 8-K (items 2.02,5.02,9.01)",
     "type": "results"
    },
    {
     "category": "3",
     "date": "2026-10-29",
     "source": "https://www.sec.gov/Archives/edgar/data/1280452/000121465926013445/xslF345X06/marketforms-74124.xml",
     "title": "3 — PRIMARY DOCUMENT",
     "type": "directors_dealings"
    }
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   "latest_filing_date": "2026-11-05",
   "read": "the node's event lines (list_events_since), as get_filings serves them",
   "source": "https://mcp.us-cm-kg.ai/events/NASDAQ/MPWR",
   "window": {
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    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://www.sec.gov/files/company_tickers_exchange.json",
    "state": "sourced",
    "value": "NASDAQ"
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    "read_date_basis": "the record version as_of",
    "source": "https://mapping.gleif.org/api/v2/isin-lei/latest",
    "state": "sourced",
    "value": "US6098391054"
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    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://data.sec.gov/submissions/CIK0001280452.json",
    "state": "sourced",
    "value": "United States — Delaware"
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    "source": "https://mapping.gleif.org/api/v2/isin-lei/latest/download (ISIN US6098391054)",
    "state": "sourced",
    "value": "529900TB7O85LSZ1XU31"
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   "name": {
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    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://data.sec.gov/submissions/CIK0001280452.json",
    "state": "sourced",
    "value": "MONOLITHIC POWER SYSTEMS, INC."
   },
   "sector": {
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    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://data.sec.gov/submissions/CIK0001280452.json",
    "state": "sourced",
    "value": "3674 Semiconductors & Related Devices"
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   "security_type": {
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    "read_date_basis": "the record version as_of",
    "source": "https://data.sec.gov/submissions/CIK0001280452.json",
    "state": "sourced",
    "value": "Corporate"
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   "segment": {
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    "state": "not_on_record"
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    "source": "https://www.sec.gov/files/company_tickers_exchange.json",
    "state": "sourced",
    "value": "MPWR"
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   "rows": [],
   "rule": "A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded."
  },
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   "domicile_change": {
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    "reason": "EDGAR states no dated change of state of incorporation on a filing line",
    "state": "not_on_record"
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   "listing": [],
   "name_change": [],
   "segment_move": {
    "market": "US",
    "reason": "the exchanges' tier transfers are not EDGAR filings",
    "state": "not_on_record"
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  "node": "us-cm-kg",
  "numbers_hash": "sha256:a64799cc0e9f9b01b58aff6b38329ad67c1f204d257f408eeb398e9375e41d21",
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  "orderability": {
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   "client_categories": [],
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    "door": "https://mcp.us-cm-kg.ai/mcp",
    "tool": "get_orderability"
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   "reason": "the chapter's orderability section carries no client_categories: the outcome cannot name its client category",
   "rule_version": "acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1",
   "section": "us.aio.v8"
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  "record": {
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   "url": "https://mcp.us-cm-kg.ai/record/NASDAQ/MPWR",
   "version": 1
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  "status": {
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   "source": "https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts",
   "value": "listed, not halted"
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 "path": "/us/NASDAQ/MPWR",
 "schema": "research-page v0.1 (USR-02, 2026-11-11)",
 "sections": [
  {
   "id": "identity",
   "text": "The issuer is MONOLITHIC POWER SYSTEMS, INC., listed on NASDAQ under ticker MPWR. Its ISIN is US6098391054 and its LEI is 529900TB7O85LSZ1XU31. Its security type is Corporate, its segment is not on the record, and its sector is 3674 Semiconductors & Related Devices. Its jurisdiction is United States, Delaware. Its listing status is listed, not halted.",
   "title": "Identity and listing"
  },
  {
   "id": "disclosure",
   "text": "The record holds 155 filings in the window 2025-11-08 to 2026-11-08, across 82 filing days. The median gap between filing days is 2 days. The latest filing is dated 2026-11-05, 3 days before the record date of 2026-11-08, and is of type directors_dealings. By type, the record holds 76 directors_dealings, 64 regulatory_filing, 8 results, 3 agm_egm, 2 ad_hoc and 2 corporate_news. The NASDAQ exchange median is 52 filings, a median cadence gap of 6.0 days and a median latency of 5.0 days. The sector median for 3674 Semiconductors & Related Devices is 96.0 filings, a median cadence gap of 4.0 days and a median latency of 4.0 days.",
   "title": "The disclosure read"
  },
  {
   "id": "auditor",
   "text": "The auditor of record is Ernst & Young LLP, located in San Jose, California. The record holds no auditor changes.",
   "title": "Auditor"
  },
  {
   "id": "events",
   "text": "The record holds no listing, delisting or name change lines. The domicile change is not on the record, since EDGAR states no dated change of state of incorporation on a filing line. The segment move is not on the record, since the exchanges' tier transfers are not EDGAR filings. The halt flag reads listed, not halted.",
   "title": "Events and halts"
  },
  {
   "id": "orderability",
   "text": "The outcome is not determinable. The chapter's orderability section carries no client categories, so the outcome cannot name its client category. The rule version is acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1, and the chapter is as of 2026-11-04.",
   "title": "Orderability"
  },
  {
   "id": "coverage",
   "text": "No research houses were found on the issuer's investor-relations pages read. The count is 0.",
   "title": "Coverage"
  },
  {
   "id": "open_research",
   "text": "No openly published research notes were found on the record. The count is 0.",
   "title": "Open research"
  },
  {
   "id": "licensed",
   "text": "Licensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded.",
   "title": "Licensed"
  },
  {
   "id": "depth",
   "text": "The vintage is sealed. The issuer's sealed years are 2021, 2022, 2023, 2024, 2025 and 2026. The market's earliest sealed date is 2021-01-04, and the live record began on 2026-09-12.",
   "title": "As-of depth"
  },
  {
   "id": "sources",
   "text": "9 source pages are named on this page; every value above carries its own source page and read date in the numbers.",
   "title": "Sources"
  }
 ],
 "sources": [
  {
   "for": "identity.exchange",
   "source": "https://www.sec.gov/files/company_tickers_exchange.json"
  },
  {
   "for": "identity.isin",
   "source": "https://mapping.gleif.org/api/v2/isin-lei/latest"
  },
  {
   "for": "identity.jurisdiction",
   "source": "https://data.sec.gov/submissions/CIK0001280452.json"
  },
  {
   "for": "identity.lei",
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  },
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   "source": "https://mcp.us-cm-kg.ai/events/NASDAQ/MPWR"
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   "for": "the halt flag",
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  },
  {
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   "source": "https://www.sec.gov/Archives/edgar/data/1280452/000143774926006113/mpwr20251231_10k.htm"
  },
  {
   "for": "the orderability chapter",
   "source": "https://mcp.us-cm-kg.ai/book/aio.json"
  },
  {
   "for": "the record",
   "source": "https://mcp.us-cm-kg.ai/record/NASDAQ/MPWR"
  }
 ],
 "title": "MONOLITHIC POWER SYSTEMS, INC. (MPWR) — research page",
 "writer": {
  "by": "Claude through the platform account, Haiku class; one pass; checked against the numbers",
  "engine": "claude-haiku-5-5"
 }
}