Insidewell reads every Form 4 from SEC EDGAR about once a minute and returns it as one clean row: ticker, insider, role, buy or sale, shares, price, dollar value, shares owned after, the 10b5-1 flag and the filing link. Filter by ticker, insider, transaction code, minimum value and dates, or ask for cluster buys (2+ insiders buying within 7 days). REST API and a remote MCP server for AI agents.
Who this is for
Quant and retail investors screening insider buying, fintech apps that show insider activity, newsletter writers, and AI agents that answer 'who bought this stock?'.
What the output looks like
Largest open-market insider buys in Form 4s filed 24-29 Sep 2026
| Ticker | Company | Insider | Role | Bought (total) | Trade dates |
|---|---|---|---|---|---|
| LEN | Lennar | Berkshire Hathaway | 10% owner | $136.4M (9 trades) | 23-25 Sep |
| CRBG | Corebridge Financial | Nippon Life Insurance | 10% owner | $32.6M (5 trades) | 22-25 Sep |
| GPI | Group 1 Automotive | Conifer Management | 10% owner | $31.5M (13 trades) | 24-25 Sep |
| ADRX | ADARx Pharmaceuticals | SR One Capital / George Simeon (joint filing) | 10% owner, director | $17.1M | 28 Sep |
| COUR | Coursera | Pale Fire Capital | 10% owner | $11.4M (2 trades) | 25-29 Sep |
| GME | GameStop | Ryan Cohen | CEO and chairman | $10.6M (2 trades) | 29 Sep |
| GSHD | Goosehead Insurance | Durable Capital Partners | 10% owner | $7.1M | 22 Sep |
| CX | CEMEX | Rogelio Zambrano Lozano | Director | $6.9M | 25 Sep |
From the command line:
curl 'https://insidewell-api.cybermaxtools.com/api/trades?code=P&minValue=1000000&days=7'
What it costs compared with the alternatives
Published prices, read on each vendor's own pricing page (2026-09-30):
| Tool | Price | Free tier |
|---|---|---|
| Insidewell API | $5 once for 2,000 calls; $19/month for 10,000 (up to 100 trades each) | 100 calls every day, no key |
| sec-api.io | $55/month ($49/month billed yearly), Insider Trading API in every plan | first 100 API calls |
| Financial Modeling Prep | Starter $19/month billed yearly; insider trades full access from Starter | 250 calls/day, insider trades limited |
| EODHD | insider transactions only in Equity Analyst $59.99/month or All-in-One $99.99/month | 20 calls/day, no insider data |
| Apify: scrapemint SEC Form 4 tracker | $0.025 per filing row (pay per event) | Apify free credit |
Pricing pages: sec-api.io, Financial Modeling Prep, EODHD, Apify: scrapemint SEC Form 4 tracker.
Why this approach
- Entry price at FMP's $19 point and well under sec-api.io's $55 and EODHD's $59.99 for insider data.
- A free tier every day (100 calls), not a one-time trial: build and test on real data before you pay.
- Insider data is the whole product, not one endpoint in a bundle: cluster buys, 10b5-1 flags, role and shares owned after on every row.
- Instant key after Stripe checkout, no account; cancel any time. Same key on the REST API and the MCP server.
FAQ
Is there a free insider trading API?
Yes: Insidewell gives 100 calls a day with no key and no card, each returning up to 100 trades. SEC EDGAR itself is free but returns raw XML filings you have to parse; Insidewell does that for you.
Why not sec-api.io?
sec-api.io is a broad SEC data platform starting at $55/month. If you only need insider trades (Forms 3/4/5), Insidewell covers them for $19/month with a daily free tier. If you need full-text search of every SEC form, sec-api.io does more.
How fresh is the data?
Insidewell polls EDGAR about once a minute, so a Form 4 appears minutes after the SEC publishes it.
Is this investment advice?
No. It is public SEC filing data, reformatted. Information only, not investment advice.
Pricing
Free: 100 calls a day, no key, no card. Start with a $5 pack: 2,000 calls that never expire, no subscription. Plans: Watchlist $19/month for 10,000 calls, Desk $49/month for 50,000, Fund $99/month for 150,000.
See Insidewell plans and try it free
Sample source: SEC EDGAR daily form index 24-29 Sep 2026 (1,447 Form 4/4A filings) parsed with Insidewell's own Form 4 parser on 1 Oct 2026; open-market purchases (code P) only, summed per insider. Information only, not investment advice.
Published automatically by CyberMax. Every number above comes from the linked public data; nothing is estimated.
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