Is InsiderAlpha free?
Yes, there is a free InsiderAlpha account. It takes no card, has no trial clock and does not expire. It carries the daily trading plan one trading day late plus the whole plan archive, the daily email digest and the RSS feeds, watchlists, search across filings and tickers, three months of company price history, and the hosted MCP server so an AI assistant can query it. Separately, the filing corpus itself needs no account at all: company pages, insider pages, the filing feeds and the screener are open. What the paid tiers sell is same-day recency, not access to the data.
What does InsiderAlpha cost?
The account itself is free. Paying gets you Basic €9 or $12 a month, Advanced €19 or $24 a month, net of VAT or sales tax, which is added at checkout where we are required to collect it and shown in full before you pay, and paying for a year up front takes 17% off. A paid plan starts with a seven calendar day trial of the tier you picked: a card is required and it is charged when the trial ends unless you cancel first, once per customer ever. Every paid plan has a fourteen day, no questions refund window, and there is no performance guarantee. 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, and OpenInsider is a good one. The InsiderAlpha screener is free too and needs no account, so you can use either without paying anyone. The case for paying starts where the screen ends: when you want the day's filings ranked rather than listed, want the insider's track record beside the buy, want Form 144 and 8-K context in the same place, or want the signal to reach you the day it lands instead of a day later.
What are the alternatives to OpenInsider?
OpenInsider, InsiderAlpha, InsiderScreener, Quiver Quantitative, Finviz and SecForm4 all cover SEC insider filings. They differ most on three axes: price, how far past Form 4 the coverage goes, and whether anything is delivered to you rather than waiting to be looked at. The table on this page compares all six on those axes, 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 honest framing is not which is cheapest but what the free version of each will not do. Ours is deliberately a trading day behind; that is stated on the plan itself rather than left to be discovered.
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 what that cell in the table means and not more than that.