You do not need an expensive terminal to see SEC filings as they post. The data is public. The real question is how much work you want to do to turn it into something you will actually notice. Here are the practical options, from raw feeds to a scored signal, and where each one falls short.

EDGAR feeds, straight from the source

The SEC publishes filings through EDGAR, which offers RSS and Atom feeds for the latest filings, including per-company feeds. It is free and it is the primary source, so nothing is faster or more authoritative. The catch is that a raw feed is just a list. You get every 8-K and every Form 4, routine or not, with no ranking and no context. For one or two companies that is fine. For a watchlist of fifty it is a firehose.

EDGAR full-text search and the JSON APIs

EDGAR also has full-text search and a set of free JSON endpoints that let you pull a company’s filing history programmatically. This is the right layer if you are building something yourself. You will need to respect the SEC’s fair-access rules, send a descriptive User-Agent, and stay within the rate limit. You also have to build the parsing, the deduplication, and the alerting on top, because the API gives you filings, not judgments.

Third-party alert tools

Plenty of tools sit on top of EDGAR and email or message you when a company files. They save you the plumbing. Quality varies: some just forward every filing, which is the same firehose in your inbox, and few tell you which filings actually matter. Check whether a tool scores or filters, or whether it simply relays.

A signal layer

The step most tools skip is judgment. A material 8-K is not the same as a routine one, and a cluster of insider buys is not the same as a single scheduled sale. A signal layer reads the filing, scores how material or unusual it is, links it to the company and the people involved, and keeps the source attached. That is the approach we take with QuantConomy: the filing still comes from EDGAR, but what reaches you is a ranked, source-linked signal instead of a raw document.

Which one should you use

  • Watching one or two tickers: an EDGAR per-company feed is enough.
  • Building your own tool: use EDGAR full-text search and the JSON APIs, and respect the rate limits.
  • Want filtered alerts without building anything: a third-party tool, but check whether it ranks or just relays.
  • Want the few filings that matter across a real watchlist: a scored signal layer.

Whichever you pick, the rule is the same: keep a link back to the original filing. An alert you cannot verify is just a rumor with better formatting.