13F Managers

The managers endpoint exposes institutional investment managers that file Form 13F with the SEC, resolved to canonical entities. Each record carries the manager's CIK, name, and the latest 13F filing on record.

• Base URL: https://api.clous.ai
• Auth: Authorization: Bearer clous_live_...

List / search managers

GET /v1/managers

List and filter Form 13F institutional managers. Results are returned through the standard envelope and are cursor-paginated.

Query parameters

Example request

Search managers by name (citadel), two per page:

curl -s "https://api.clous.ai/v1/managers?q=citadel&limit=2" \
  -H "Authorization: Bearer clous_live_..."

import requests

resp = requests.get(
    "https://api.clous.ai/v1/managers",
    params={"q": "citadel", "limit": 2},
    headers={"Authorization": "Bearer clous_live_..."},
)
resp.raise_for_status()
data = resp.json()

const resp = await fetch(
  "https://api.clous.ai/v1/managers?q=citadel&limit=2",
  {
    headers: { Authorization: "Bearer clous_live_..." },
  },
);
const data = await resp.json();

Example response

{
  "data": [
    {
      "cik": "1811907",
      "manager_name": "Citadel Investment Advisory, Inc.",
      "normalized_name": "citadelinvestmentadvisory",
      "latest_accession": "0001811907-26-000002",
      "form_type": "13F-HR",
      "filed_at": "2026-04-16",
      "period_of_report": null,
      "portfolio_value_usd": 0,
      "holdings_count": 0
    },
    {
      "cik": "1721695",
      "manager_name": "Citadel Securities GP LLC",
      "normalized_name": "citadelsecuritiesgp",
      "latest_accession": "0001104659-26-062481",
      "form_type": "13F-NT",
      "filed_at": "2026-05-15",
      "period_of_report": null,
      "portfolio_value_usd": 0,
      "holdings_count": 0
    }
  ],
  "page": {
    "limit": 2,
    "next_cursor": "MHwxNzIxNjk1",
    "has_more": true
  },
  "as_of": "2026-06-12T04:10:28.851166Z",
  "source": "form_13f",
  "query_echo": {
    "q": "citadel",
    "aum_min": null,
    "limit": 2
  },
  "warnings": []
}

Status codes

Error semantics are documented in Pagination, Errors & Rate limits.

Notes

• Records are institutional investment managers parsed from Form 13F (13F-HR holdings reports and 13F-NT notice filings). The form_type field reflects which kind of 13F filing produced the latest record.
• portfolio_value_usd and holdings_count are populated from the holdings table of 13F-HR filings; for notice filings (13F-NT) and where holdings have not yet been ingested, these may report 0. Likewise period_of_report may be null.
• Use query_echo in the response to confirm exactly which typed parameters Clous applied to your request.
• All data derives from public SEC EDGAR Form 13F filings; Clous is independent of the SEC.
• For paging through large result sets, follow page.next_cursor — see Pagination, Errors & Rate limits.