SEC Insider Trading Monitor (Form 4) 📈

Track when corporate insiders buy and sell their own company's stock — straight from official SEC Form 4 filings.

When a director, officer, or 10%+ owner of a US public company trades that company's shares, the SEC requires them to disclose it on a Form 4 within two business days. Those filings are one of the most-watched signals in the market — a CEO buying millions of dollars of their own stock, or dumping it, moves prices and headlines.

This Actor turns that raw filing stream into clean, structured, ready-to-use data. Watch a list of tickers you care about, or monitor every insider trade filed across the entire market.

Data comes exclusively from SEC EDGAR — public, government-mandated disclosures. No login, no personal data beyond what the SEC itself publishes, no gray areas.

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What you can do with it

• 🐋 Follow the smart money — see which executives are buying or selling, and how much.
• 🔔 Build insider-trading alerts — run it on a schedule and pipe results to Slack, email, a Google Sheet, or your app.
• 📊 Feed dashboards & newsletters — power an "insider buys of the week" feed.
• 🤖 Signal for trading models — a normalized dataset of insider buys/sells with dollar values.
• 🔎 Due diligence & research — pull an insider-transaction history for any ticker in seconds.

Features

• ✅ Two modes — Watchlist (specific tickers/CIKs) or Market (every Form 4 filed).
• ✅ Ticker → company resolution built in — just type AAPL, not a CIK number.
• ✅ Buy/sell signal filtering — defaults to open-market purchases (P) and sales (S), the codes that actually matter. Flip on everything if you want grants, options and gifts too.
• ✅ Dollar-value filter — e.g. "only trades over $100,000".
• ✅ Rich output — insider name, role, transaction type, shares, price, total value, shares held after, and a direct link to the filing.
• ✅ Low-maintenance & cheap — official SEC endpoints, no proxy, no browser, tiny memory footprint.

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Input

Field	Description
Mode	watchlist (specific companies) or market (everything filed).
Tickers to watch	e.g. AAPL, TSLA, NVDA. Used in Watchlist mode.
CIKs to watch	SEC CIK numbers for filers without a ticker (optional).
Lookback days	How many days back to scan (1–90).
Transaction types	Which Form 4 codes to keep. Default P, S. Pick ALL for everything.
Minimum transaction value (USD)	Only keep trades worth at least this much.
Include derivatives	Include options/warrants (off by default).
Include amendments	Include Form 4/A amended filings (on by default).
Max results	Cap the number of transactions returned.
Contact email	Sent to SEC in the User-Agent, per their fair-access policy.

Example — watch three companies for big trades

{
  "mode": "watchlist",
  "tickers": ["AAPL", "TSLA", "NVDA"],
  "daysBack": 30,
  "transactionCodes": ["P", "S"],
  "minTransactionValue": 100000,
  "contactEmail": "you@example.com"
}

Example — every large insider buy across the market, last 2 days

{
  "mode": "market",
  "daysBack": 2,
  "transactionCodes": ["P"],
  "minTransactionValue": 250000,
  "contactEmail": "you@example.com"
}

Output

Each row is a single insider transaction:

{
  "issuer_ticker": "AAPL",
  "issuer_name": "Apple Inc.",
  "issuer_cik": "320193",
  "insider_name": "COOK TIMOTHY D",
  "insider_title": "Chief Executive Officer",
  "relationship": "Director, Chief Executive Officer",
  "is_director": true,
  "is_officer": true,
  "is_ten_percent_owner": false,
  "security_title": "Common Stock",
  "transaction_date": "2026-04-01",
  "filing_date": "2026-04-03",
  "transaction_code": "S",
  "transaction_label": "Open-market sale",
  "direction": "sell",
  "acquired_disposed": "D",
  "shares": 50000.0,
  "price_per_share": 190.25,
  "transaction_value": 9512500.0,
  "shares_owned_after": 3200000.0,
  "ownership_type": "D",
  "is_derivative": false,
  "form_type": "4",
  "accession_number": "0000320193-26-000045",
  "filing_url": "https://www.sec.gov/Archives/edgar/data/320193/000032019326000045/0000320193-26-000045-index.htm",
  "document_url": "https://www.sec.gov/Archives/edgar/data/320193/000032019326000045/"
}

Run it on a schedule

Set the Actor to run on a schedule (e.g. every morning) with a short daysBack (2–3) to get a daily digest of new insider activity. Connect an integration (Slack, email, webhook, Google Sheets, Zapier/Make) to get alerts pushed to you automatically.

Transaction codes cheat sheet

Code	Meaning	Signal
P	Open-market purchase	🟢 Strong bullish
S	Open-market sale	🔴 Bearish
A	Grant / award	Neutral (compensation)
M	Option/derivative exercise	Neutral
F	Shares withheld for taxes	Neutral
G	Gift	Neutral
C	Conversion of derivative	Neutral
X	In-the-money option exercise	Neutral

Notes & limitations

• Uses SEC EDGAR's official public endpoints; respects SEC's fair-access rate limits.
• Market mode inspects every Form 4 filed in the window, so it takes longer and returns more — use the value/type filters to focus it.
• This is factual public data, not investment advice. Insiders trade for many reasons; do your own research.

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Keywords

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