Bosco Labs

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What stocks does Pershing Square own, and what did it change last quarter?

Answered bySEC Ownership API: 13F, N-PORT Fund Holdings, 13D/13G, Form 144
Price$0.0018 per row, plus $0.01 per "who holds this stock" search (13F or N-PORT data set)
StatusOn Apify Store

Pershing Square Capital Management reports its US stock positions quarterly on Form 13F-HR. The rows list each holding with shares, value_usd and portfolio_pct, and compare with the previous quarter: change (new, increased, decreased, sold), shares_change and shares_change_pct, with a link to the 13F on EDGAR.

Tool input

{
  "mode": "holdings13f",
  "filer": "Pershing Square Capital Management",
  "maxResults": 25
}

Ask it from an AI agent (MCP)

Add the Apify MCP server with this tool to your MCP client (Claude, Cursor, VS Code, ...); it signs you in with OAuth or Authorization: Bearer <APIFY_TOKEN>.

https://mcp.apify.com?tools=bosco_labs/sec-ownership

Then ask:

Use the bosco_labs/sec-ownership tool to answer: What stocks does Pershing Square own, and what did it change last quarter?

Call the Apify API

Runs the Actor and returns the rows in one request, billed to your Apify account ($0.0018 per row, plus $0.01 per "who holds this stock" search (13F or N-PORT data set)).

curl https://api.apify.com/v2/acts/bosco_labs~sec-ownership/run-sync-get-dataset-items \
  -H "Authorization: Bearer $APIFY_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"mode": "holdings13f", "filer": "Pershing Square Capital Management", "maxResults": 25}'

Call the Bosco Labs HTTP API

Bosco Labs HTTP API (beta): same input and rows, $0.0018 per holding, holder or filing row (one fund or company per call) from prepaid credits. Get a key with a $0.50 free trial, or send the same call without a key and pay per call in USDC via x402 (no account).

curl https://api.boscolabs.dev/v1/sec-ownership \
  -H "Authorization: Bearer $BOSCO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"mode": "holdings13f", "filer": "Pershing Square Capital Management", "maxResults": 25}'

Example output

Snapshot taken 2026-11-06, source links in each row. First 1 of 5 rows (snapshot runs stop at 5 rows); long values shortened.

[
  {
    "schema_version": "1",
    "record_type": "holding",
    "filer_name": "Pershing Square Capital Management, L.P.",
    "filer_cik": "0001336528",
    "period_of_report": "2026-03-31",
    "form": "13F-HR",
    "accession_number": "0001172661-26-002336",
    "filing_date": "2026-05-15",
    "issuer_name": "BROOKFIELD CORP",
    "title_of_class": "CL A LTD VT SH",
    "cusip": "11271J107",
    "ticker": "BN",
    "ticker_candidates": [],
    "put_call": null,
    "shares": 59697208,
    "share_type": "SH",
    "value_usd": 2415946008,
    "portfolio_pct": 17.62,
    "previous_period": "2025-12-31",
    "previous_shares": 61403089,
    "previous_value_usd": 2817787754,
    "shares_change": -1705881,
    "shares_change_pct": -2.78,
    "change": "decreased",
    "filing_url": "https://www.sec.gov/Archives/edgar/data/1336528/000117266126002336/0001172661-26-002336-index.htm",
    "source": "edgar-13f",
    "source_url": "https://www.sec.gov/Archives/edgar/data/1336528/000117266126002336/infotable.xml",
    "retrieved_at": "2026-11-06T22:51:26+00:00"
  }
]
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