Is InsiderAlpha free?
Yes. The free InsiderAlpha account takes no card, has no trial clock and does not expire. It reads the daily trading plan once its session has closed, with the whole plan archive, the daily email digest, RSS feeds, a watchlist, search across filings and tickers, three months of company price history, and the hosted MCP server so an AI assistant can query it. Recent filings need no account: company pages, insider pages, the filing feeds and the screener are open to anyone, and a free account opens each company's and insider's full filing history. What the paid plans mainly sell is timing: reading each plan before the open.
What does InsiderAlpha cost?
The account itself is free. The paid plans are Basic €9 or $12 a month, Advanced €19 or $24 a month, and paying for a year up front takes 17% off. Prices exclude VAT and sales tax. Where we are required to collect it, tax is added at checkout at your country's rate, and you see the exact total before you pay. A paid plan starts with a 7-day free trial of the tier you pick. A card is required, it is charged when the trial ends unless you cancel first, and there is one trial per customer. Every paid plan has a 14-day refund window with no conditions, and nothing about performance is promised. The current figures are always on the pricing page.
Is InsiderAlpha worth it if OpenInsider is free?
If what you want is a Form 4 screener, no. OpenInsider is a good one, and the InsiderAlpha screener is free too and needs no account, so you can use either without paying anyone. Paying makes sense once the screen is not the problem: when you want the day's purchases ranked with the reasons for each score, Form 144 and 8-K context in the same place, and the daily trading plan before the open rather than once its session has closed.
What are the alternatives to OpenInsider?
OpenInsider, InsiderAlpha, InsiderScreener, Quiver Quantitative, Finviz and SecForm4 all cover SEC insider filings. They differ most on price, on how far past Form 4 the coverage goes, and on whether anything is sent to you or you have to go and look. The tables on this page compare all six on those points, with the source and the date behind every claim.
Which insider trading tool is the cheapest?
OpenInsider, which is entirely free and has no paid tier at all. InsiderAlpha, Finviz and Quiver all have something usable at zero as well, so the more useful question is what each free version leaves out. Ours reads the daily trading plan once its session has closed, and the plan page says so.
Do any of these have an API or work with AI assistants?
Four of the six publish something. InsiderScreener sells an API separately from its subscriptions, on a credit model. Quiver sells one too, but insider trading data is excluded from its cheapest tier and starts a rung up, and neither self-serve tier carries commercial use rights. Finviz includes API access with Elite. InsiderAlpha runs a hosted MCP server that Claude, ChatGPT, Cursor and any other MCP client can query directly, read-only, on a free account. For OpenInsider and SecForm4 we found no API documented on their sites, which is all that cell in the table means.