{
 "as_of": "2026-11-08",
 "cmr": "us-cm-kg/NASDAQ/GOSS",
 "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# Gossamer Bio, Inc. (NASDAQ: GOSS) — research page\n\nAs of 2026-11-08 · us-cm-kg · record version 1\n\n## Identity and listing\n\nThe issuer is Gossamer Bio, Inc., listed on NASDAQ under ticker GOSS. Its LEI is 549300ZOC0N2W6PSFR58; the record does not carry a single ISIN, and lists several US ISINs against the LEI. Its security type is Corporate, its sector is 2834 Pharmaceutical Preparations, and its jurisdiction is United States, Delaware. The segment is not on the record. The issuer is listed and not halted.\n\n## The disclosure read\n\nThe record holds 89 filings in the window 2025-11-08 to 2026-11-08, across 44 filing days. The median gap between filing days is 5 days. The median latency from the latest filing to the record date is 2 days, against an exchange median of 5.0 days and a sector median of 4.0 days. The NASDAQ exchange median is 52 filings and 6.0 days cadence; the sector median is 63.0 filings and 6.0 days cadence. The latest filing is dated 2026-11-06 and is of type regulatory_filing.\n\n## Auditor\n\nThe auditor of record is Ernst & Young LLP, located in San Diego, 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, 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 is clear: 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 house was found on the issuer's investor-relations page.\n\n## Open research\n\nNo openly published research note was found on the record.\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. Sealed years that hold the issuer are 2021, 2022, 2023, 2024, 2025 and 2026. The market's earliest sealed date is 2021-01-04. 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://data.sec.gov/submissions/CIK0001728117.json (identity.jurisdiction)\n- https://api.gleif.org/api/v1/lei-records/549300ZOC0N2W6PSFR58 (identity.lei)\n- https://mcp.us-cm-kg.ai/events/NASDAQ/GOSS (the disclosure lines)\n- https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts (the halt flag)\n- https://www.sec.gov/Archives/edgar/data/1728117/000172811726000017/goss-20251231.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/GOSS (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": {
    "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/1728117/000172811726000017/goss-20251231.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/1728117/000172811726000017/goss-20251231.htm",
    "state": "sourced",
    "value": "42"
   },
   "auditor_location": {
    "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/1728117/000172811726000017/goss-20251231.htm",
    "state": "sourced",
    "value": "San Diego, California"
   },
   "changes": []
  },
  "cmr": "us-cm-kg/NASDAQ/GOSS",
  "coverage": {
   "count": 0,
   "houses": [],
   "pages_checked": [
    {
     "page": "https://ir.gossamerbio.com/stock/analyst-coverage",
     "result": "not readable by this rail (403)"
    }
   ],
   "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": 526,
     "median_cadence_gap_days": 6,
     "median_filings": 63,
     "median_latency_days": 4,
     "name": "2834 Pharmaceutical Preparations"
    }
   },
   "by_type": {
    "ad_hoc": 2,
    "agm_egm": 9,
    "corporate_news": 12,
    "director_change": 2,
    "directors_dealings": 31,
    "halt_suspension": 1,
    "prospectus": 1,
    "regulatory_filing": 26,
    "results": 5
   },
   "cadence_median_gap_days": 5,
   "filing_days": 44,
   "filings": 89,
   "latency_days": 2,
   "latest": [
    {
     "category": "SCHEDULE 13G/A",
     "date": "2026-11-06",
     "source": "https://www.sec.gov/Archives/edgar/data/1728117/000149315226050449/xslSCHEDULE_13G_X02/primary_doc.xml",
     "title": "SCHEDULE 13G/A",
     "type": "regulatory_filing"
    },
    {
     "category": "SCHEDULE 13G",
     "date": "2026-11-06",
     "source": "https://www.sec.gov/Archives/edgar/data/1728117/000031506626002941/xslSCHEDULE_13G_X02/primary_doc.xml",
     "title": "SCHEDULE 13G",
     "type": "regulatory_filing"
    },
    {
     "category": "SCHEDULE 13D/A",
     "date": "2026-10-29",
     "source": "https://www.sec.gov/Archives/edgar/data/1728117/000110465926120319/xslSCHEDULE_13D_X02/primary_doc.xml",
     "title": "SCHEDULE 13D/A",
     "type": "regulatory_filing"
    },
    {
     "category": "8-K",
     "date": "2026-10-28",
     "source": "https://www.sec.gov/Archives/edgar/data/1728117/000172811726000109/goss-20261027.htm",
     "title": "8-K — 8-K (items 5.07)",
     "type": "agm_egm"
    },
    {
     "category": "SCHEDULE 13D/A",
     "date": "2026-10-08",
     "source": "https://www.sec.gov/Archives/edgar/data/1728117/000110465926114792/xslSCHEDULE_13D_X02/primary_doc.xml",
     "title": "SCHEDULE 13D/A",
     "type": "regulatory_filing"
    }
   ],
   "latest_filing_date": "2026-11-06",
   "read": "the node's event lines (list_events_since), as get_filings serves them",
   "source": "https://mcp.us-cm-kg.ai/events/NASDAQ/GOSS",
   "window": {
    "from": "2025-11-08",
    "to": "2026-11-08"
   }
  },
  "identity": {
   "exchange": {
    "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": "NASDAQ"
   },
   "isin": {
    "market": "US",
    "reason": "several US ISINs on the LEI: US38341P1021, US38341P1104, US38341P2011, US38341PAA03, US38341PAB85",
    "state": "not_on_record"
   },
   "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/CIK0001728117.json",
    "state": "sourced",
    "value": "United States — Delaware"
   },
   "lei": {
    "read_by": "GLEIF name-exact (jurisdiction US-DE; GLEIF golden copy 2026-09-12)",
    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://api.gleif.org/api/v1/lei-records/549300ZOC0N2W6PSFR58",
    "state": "sourced",
    "value": "549300ZOC0N2W6PSFR58"
   },
   "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/CIK0001728117.json",
    "state": "sourced",
    "value": "Gossamer Bio, 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/CIK0001728117.json",
    "state": "sourced",
    "value": "2834 Pharmaceutical Preparations"
   },
   "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/CIK0001728117.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": "GOSS"
   },
   "website": {
    "market": "US",
    "state": "not_on_record"
   }
  },
  "licensed": {
   "columns": [
    "licensor",
    "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": "sha256:650f23af7eca407ebd0f22aa0290720b93873a48e6b13a106ffc3abfacb682c5",
  "open_research": {
   "read_date": "2026-11-11",
   "rows": [],
   "state": "none_found"
  },
  "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/GOSS",
   "version": 1
  },
  "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"
  }
 },
 "numbers_hash": "sha256:650f23af7eca407ebd0f22aa0290720b93873a48e6b13a106ffc3abfacb682c5",
 "path": "/us/NASDAQ/GOSS",
 "schema": "research-page v0.1 (USR-02, 2026-11-11)",
 "sections": [
  {
   "id": "identity",
   "text": "The issuer is Gossamer Bio, Inc., listed on NASDAQ under ticker GOSS. Its LEI is 549300ZOC0N2W6PSFR58; the record does not carry a single ISIN, and lists several US ISINs against the LEI. Its security type is Corporate, its sector is 2834 Pharmaceutical Preparations, and its jurisdiction is United States, Delaware. The segment is not on the record. The issuer is listed and not halted.",
   "title": "Identity and listing"
  },
  {
   "id": "disclosure",
   "text": "The record holds 89 filings in the window 2025-11-08 to 2026-11-08, across 44 filing days. The median gap between filing days is 5 days. The median latency from the latest filing to the record date is 2 days, against an exchange median of 5.0 days and a sector median of 4.0 days. The NASDAQ exchange median is 52 filings and 6.0 days cadence; the sector median is 63.0 filings and 6.0 days cadence. The latest filing is dated 2026-11-06 and is of type regulatory_filing.",
   "title": "The disclosure read"
  },
  {
   "id": "auditor",
   "text": "The auditor of record is Ernst & Young LLP, located in San Diego, 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, 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 is clear: 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 house was found on the issuer's investor-relations page.",
   "title": "Coverage"
  },
  {
   "id": "open_research",
   "text": "No openly published research note was found on the record.",
   "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. Sealed years that hold the issuer are 2021, 2022, 2023, 2024, 2025 and 2026. The market's earliest sealed date is 2021-01-04. 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.jurisdiction",
   "source": "https://data.sec.gov/submissions/CIK0001728117.json"
  },
  {
   "for": "identity.lei",
   "source": "https://api.gleif.org/api/v1/lei-records/549300ZOC0N2W6PSFR58"
  },
  {
   "for": "the disclosure lines",
   "source": "https://mcp.us-cm-kg.ai/events/NASDAQ/GOSS"
  },
  {
   "for": "the halt flag",
   "source": "https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts"
  },
  {
   "for": "the auditor",
   "source": "https://www.sec.gov/Archives/edgar/data/1728117/000172811726000017/goss-20251231.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/GOSS"
  }
 ],
 "title": "Gossamer Bio, Inc. (GOSS) — research page",
 "writer": {
  "by": "Claude through the platform account, Haiku class; one pass; checked against the numbers",
  "engine": "claude-haiku-5-5"
 }
}