Bosco Labs

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What are the top holdings of the ARK Innovation ETF (ARKK)?

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

ARK Innovation ETF reports its holdings to the SEC on Form N-PORT; this input returns its largest positions from the newest filing, with shares, value_usd, portfolio_pct, CUSIP, ISIN and ticker, and the change in shares against the previous report. Each row links the N-PORT filing on EDGAR.

Tool input

{
  "mode": "holdingsNport",
  "fund": "ARKK",
  "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 are the top holdings of the ARK Innovation ETF (ARKK)?

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": "holdingsNport", "fund": "ARKK", "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": "holdingsNport", "fund": "ARKK", "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": "fund_holding",
    "filer_name": "ARK Innovation ETF",
    "filer_cik": "0001579982",
    "period_of_report": "2026-07-31",
    "form": "NPORT-P",
    "accession_number": "0000940400-26-037955",
    "filing_date": "2026-09-22",
    "issuer_name": "TESLA INC",
    "title_of_class": "TESLA INC COM",
    "cusip": "88160R101",
    "ticker": "TSLA",
    "ticker_candidates": [],
    "put_call": null,
    "shares": 1740376,
    "share_type": "SH",
    "value_usd": 541622414.96,
    "portfolio_pct": 9.7374,
    "previous_period": "2026-04-30",
    "previous_shares": 1653653,
    "previous_value_usd": 631083594.39,
    "shares_change": 86723,
    "shares_change_pct": 5.24,
    "change": "increased",
    "series_id": "S000042977",
    "registrant_name": "ARK ETF Trust",
    "fund_net_assets_usd": 5562264980.05,
    "payoff_profile": "Long",
    "isin": "US88160R1014",
    "issuer_lei": "54930043XZGB27CTOV49",
    "asset_category": "EC",
    "currency": "USD",
    "country": "US",
    "filing_url": "https://www.sec.gov/Archives/edgar/data/1579982/000094040026037955/0000940400-26-037955-index.htm",
    "source": "edgar-nport",
    "source_url": "https://www.sec.gov/Archives/edgar/data/1579982/000094040026037955/primary_doc.xml",
    "retrieved_at": "2026-11-06T22:51:09+00:00"
  }
]
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