{
 "as_of": "2026-11-08",
 "cmr": "us-cm-kg/NASDAQ/COLB",
 "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# COLUMBIA BANKING SYSTEM, INC. (NASDAQ: COLB) — research page\n\nAs of 2026-11-08 · us-cm-kg · record version 1\n\n## Identity and listing\n\nThe issuer is COLUMBIA BANKING SYSTEM, INC., listed on NASDAQ under ticker COLB, with ISIN US1972361026 and LEI 254900CTRJTQZ3BJ2V17. Its security type is Corporate and its sector is 6022 State Commercial Banks. Its jurisdiction is United States, Washington. Segment is not on the record. Its listing status is listed, not halted.\n\n## The disclosure read\n\nThe record holds 124 filings in the window 2025-11-08 to 2026-11-08, across 50 filing days. The median gap between filing days is 6 days. The median latency from the latest filing to the record date is 3 days, and the latest filing is a results filing dated 2026-11-05. The NASDAQ exchange median cadence gap is 6.0 days and median latency is 5.0 days, with a median of 52 filings. The 6022 State Commercial Banks sector median cadence gap is 5.0 days and median latency is 3.0 days, with a median of 87.5 filings. The window holds 89 directors' dealings filings, 13 regulatory filings, 8 results filings, 8 corporate news filings, 3 AGM/EGM filings and 3 director change filings.\n\n## Auditor\n\nThe auditor of record is not on the record, because the latest annual report cover carries no auditor name tag, and the auditor's location is not on the record. 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, as EDGAR states no dated change of state of incorporation on a filing line. The segment move is not on the record, as the exchanges' tier transfers are not EDGAR filings. The halt flag reads listed, not halted.\n\n## Orderability\n\nThe outcome is not determinable, because the chapter's orderability section carries no client categories and 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 investor-relations pages read, and the count is 0.\n\n## Open research\n\nNo openly published research notes were found, and 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\nIssuer years sealed 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\n8 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://www.sec.gov/data-research/sec-markets-data/fails-deliver-data (identity.isin)\n- https://data.sec.gov/submissions/CIK0000887343.json (identity.jurisdiction)\n- https://api.gleif.org/api/v1/lei-records/254900CTRJTQZ3BJ2V17 (identity.lei)\n- https://mcp.us-cm-kg.ai/events/NASDAQ/COLB (the disclosure lines)\n- https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts (the halt flag)\n- https://mcp.us-cm-kg.ai/book/aio.json (the orderability chapter)\n- https://mcp.us-cm-kg.ai/record/NASDAQ/COLB (the record)\n",
 "market": "US",
 "node": "us-cm-kg",
 "numbers": {
  "as_of_depth": {
   "issuer_years_sealed": [
    "2021",
    "2022",
    "2023",
    "2024",
    "2025",
    "2026"
   ],
   "live_record_began": "2026-09-12",
   "node_history_from": "2021-01-04",
   "node_years_sealed": [
    "2021",
    "2022",
    "2023",
    "2024",
    "2025",
    "2026"
   ],
   "record_version": 1,
   "sealed": true
  },
  "auditor": {
   "auditor": {
    "market": "US",
    "reason": "no dei:AuditorName tag on the latest annual report cover (foreign private issuers and older filings carry none)",
    "state": "not_on_record"
   },
   "auditor_firm_id": {
    "market": "US",
    "state": "not_on_record"
   },
   "auditor_location": {
    "market": "US",
    "state": "not_on_record"
   },
   "changes": []
  },
  "cmr": "us-cm-kg/NASDAQ/COLB",
  "coverage": {
   "count": 0,
   "houses": [],
   "pages_checked": [],
   "read_by": "Perplexity sonar (search) · page read by this rail",
   "read_date": "2026-11-11",
   "since": null,
   "state": "none_found"
  },
  "disclosure": {
   "against": {
    "exchange": {
     "issuers": 4359,
     "median_cadence_gap_days": 6,
     "median_filings": 52,
     "median_latency_days": 5,
     "name": "NASDAQ"
    },
    "sector": {
     "issuers": 214,
     "median_cadence_gap_days": 5,
     "median_filings": 87.5,
     "median_latency_days": 3,
     "name": "6022 State Commercial Banks"
    }
   },
   "by_type": {
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    "corporate_news": 8,
    "director_change": 3,
    "directors_dealings": 89,
    "regulatory_filing": 13,
    "results": 8
   },
   "cadence_median_gap_days": 6,
   "filing_days": 50,
   "filings": 124,
   "latency_days": 3,
   "latest": [
    {
     "category": "10-Q",
     "date": "2026-11-05",
     "source": "https://www.sec.gov/Archives/edgar/data/887343/000088734326000188/colb-20260930.htm",
     "title": "10-Q — 10-Q",
     "type": "results"
    },
    {
     "category": "4",
     "date": "2026-10-30",
     "source": "https://www.sec.gov/Archives/edgar/data/887343/000088734326000185/xslF345X06/wk-form4_1793400498.xml",
     "title": "4 — FORM 4",
     "type": "directors_dealings"
    },
    {
     "category": "144",
     "date": "2026-10-29",
     "source": "https://www.sec.gov/Archives/edgar/data/887343/000195917326007540/xsl144X01/primary_doc.xml",
     "title": "144",
     "type": "regulatory_filing"
    },
    {
     "category": "8-K",
     "date": "2026-10-27",
     "source": "https://www.sec.gov/Archives/edgar/data/887343/000119312526434182/d20029d8k.htm",
     "title": "8-K — 8-K (items 5.02,9.01)",
     "type": "director_change"
    },
    {
     "category": "8-K",
     "date": "2026-10-22",
     "source": "https://www.sec.gov/Archives/edgar/data/887343/000088734326000184/colb-20261022.htm",
     "title": "8-K — 8-K (items 2.02,7.01,9.01)",
     "type": "results"
    }
   ],
   "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/COLB",
   "window": {
    "from": "2025-11-08",
    "to": "2026-11-08"
   }
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  "identity": {
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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"
   },
   "isin": {
    "read_by": "SEC Fails-to-Deliver data (CUSIP for the symbol) · ISIN = US + CUSIP + ISO 6166 check digit",
    "read_date": "2026-09-25",
    "read_date_basis": "last_seen",
    "source": "https://www.sec.gov/data-research/sec-markets-data/fails-deliver-data",
    "state": "sourced",
    "value": "US1972361026"
   },
   "jurisdiction": {
    "read_by": "EDGAR submissions API (issuer header as filed) (stateOfIncorporation)",
    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://data.sec.gov/submissions/CIK0000887343.json",
    "state": "sourced",
    "value": "United States — Washington"
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   "lei": {
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    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://api.gleif.org/api/v1/lei-records/254900CTRJTQZ3BJ2V17",
    "state": "filled",
    "value": "254900CTRJTQZ3BJ2V17"
   },
   "name": {
    "read_by": "EDGAR submissions API (issuer header as filed)",
    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://data.sec.gov/submissions/CIK0000887343.json",
    "state": "sourced",
    "value": "COLUMBIA BANKING SYSTEM, INC."
   },
   "sector": {
    "read_by": "EDGAR submissions API (issuer header as filed) (SIC code as assigned by the SEC)",
    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://data.sec.gov/submissions/CIK0000887343.json",
    "state": "sourced",
    "value": "6022 State Commercial Banks"
   },
   "security_type": {
    "read_by": "EDGAR submissions API (issuer header as filed)",
    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://data.sec.gov/submissions/CIK0000887343.json",
    "state": "sourced",
    "value": "Corporate"
   },
   "segment": {
    "market": "US",
    "state": "not_on_record"
   },
   "ticker": {
    "read_by": "EDGAR company_tickers_exchange.json (SEC list of exchange-listed filers)",
    "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": "COLB"
   },
   "website": {
    "market": "US",
    "state": "not_on_record"
   }
  },
  "licensed": {
   "columns": [
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    "entitlement",
    "title",
    "date",
    "source"
   ],
   "rows": [],
   "rule": "A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded."
  },
  "lifecycle": {
   "delisting": [],
   "domicile_change": {
    "market": "US",
    "reason": "EDGAR states no dated change of state of incorporation on a filing line",
    "state": "not_on_record"
   },
   "listing": [],
   "name_change": [],
   "segment_move": {
    "market": "US",
    "reason": "the exchanges' tier transfers are not EDGAR filings",
    "state": "not_on_record"
   }
  },
  "market": "US",
  "node": "us-cm-kg",
  "numbers_hash": "sha256:b0578fbc1d6fd806bf3196c8d32b13a0bbec45af0da7f2927773e390c34aafb2",
  "open_research": {
   "read_date": "2026-11-11",
   "rows": [],
   "state": "none_found"
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  "orderability": {
   "chapter_as_of": "2026-11-04",
   "client_categories": [],
   "determinable": false,
   "read": {
    "chapter": "https://mcp.us-cm-kg.ai/book/aio.json",
    "door": "https://mcp.us-cm-kg.ai/mcp",
    "tool": "get_orderability"
   },
   "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"
  },
  "record": {
   "as_of": "2026-11-08",
   "url": "https://mcp.us-cm-kg.ai/record/NASDAQ/COLB",
   "version": 1
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  "schema": "research-numbers v0.1 (USR-01, 2026-11-11)",
  "status": {
   "read_date": "2026-11-08",
   "source": "https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts",
   "value": "listed, not halted"
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 },
 "numbers_hash": "sha256:b0578fbc1d6fd806bf3196c8d32b13a0bbec45af0da7f2927773e390c34aafb2",
 "path": "/us/NASDAQ/COLB",
 "schema": "research-page v0.1 (USR-02, 2026-11-11)",
 "sections": [
  {
   "id": "identity",
   "text": "The issuer is COLUMBIA BANKING SYSTEM, INC., listed on NASDAQ under ticker COLB, with ISIN US1972361026 and LEI 254900CTRJTQZ3BJ2V17. Its security type is Corporate and its sector is 6022 State Commercial Banks. Its jurisdiction is United States, Washington. Segment is not on the record. Its listing status is listed, not halted.",
   "title": "Identity and listing"
  },
  {
   "id": "disclosure",
   "text": "The record holds 124 filings in the window 2025-11-08 to 2026-11-08, across 50 filing days. The median gap between filing days is 6 days. The median latency from the latest filing to the record date is 3 days, and the latest filing is a results filing dated 2026-11-05. The NASDAQ exchange median cadence gap is 6.0 days and median latency is 5.0 days, with a median of 52 filings. The 6022 State Commercial Banks sector median cadence gap is 5.0 days and median latency is 3.0 days, with a median of 87.5 filings. The window holds 89 directors' dealings filings, 13 regulatory filings, 8 results filings, 8 corporate news filings, 3 AGM/EGM filings and 3 director change filings.",
   "title": "The disclosure read"
  },
  {
   "id": "auditor",
   "text": "The auditor of record is not on the record, because the latest annual report cover carries no auditor name tag, and the auditor's location is not on the record. 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, as EDGAR states no dated change of state of incorporation on a filing line. The segment move is not on the record, as 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, because the chapter's orderability section carries no client categories and 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 investor-relations pages read, and the count is 0.",
   "title": "Coverage"
  },
  {
   "id": "open_research",
   "text": "No openly published research notes were found, and 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": "Issuer years sealed 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": "8 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://www.sec.gov/data-research/sec-markets-data/fails-deliver-data"
  },
  {
   "for": "identity.jurisdiction",
   "source": "https://data.sec.gov/submissions/CIK0000887343.json"
  },
  {
   "for": "identity.lei",
   "source": "https://api.gleif.org/api/v1/lei-records/254900CTRJTQZ3BJ2V17"
  },
  {
   "for": "the disclosure lines",
   "source": "https://mcp.us-cm-kg.ai/events/NASDAQ/COLB"
  },
  {
   "for": "the halt flag",
   "source": "https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts"
  },
  {
   "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/COLB"
  }
 ],
 "title": "COLUMBIA BANKING SYSTEM, INC. (COLB) — research page",
 "writer": {
  "by": "Claude through the platform account, Haiku class; one pass; checked against the numbers",
  "engine": "claude-haiku-5-5"
 }
}