How to monitor SEC filings and get an alert when one lands

Start with EDGAR, because most people need nothing else

Almost every article about monitoring SEC filings is selling a tool, so almost none of them open with this: the SEC gives you the monitoring for free, and for a large share of the people searching this phrase it is enough.

Three surfaces do the work. EDGAR full-text search covers the full text of electronic filings since 2001 and filters by form type, date, company, person and location. The Latest Filings page lists submissions as they are disseminated, filterable by form type, and can include, exclude or isolate the ownership forms 3, 4 and 5. Both can be subscribed to as RSS, and the link sits directly above the results list. The EDGAR APIs return the same data as JSON if you would rather write ten lines of code than run a feed reader.

If your requirement is "tell me when this company files an 8-K", that is a company RSS feed and you are done. If it is "tell me when any filing anywhere mentions this phrase", that is a saved full-text search. Neither costs anything, and neither needs a vendor.

We sell a monitoring tool and we are telling you to try the free thing first. That is not modesty. A tool bought for a job the source already does gets cancelled in month two, and the gaps below are real enough that we would rather you arrive at them honestly.

The filing deadlines that decide how often to check

Check frequency should follow the filing deadline, not a vague preference for speed. A form with a two-business-day clock rewards a fast schedule. A quarterly one does not, and checking it every five minutes buys nothing but noise.

These are the deadlines that matter most, each taken from the SEC's own rule or release rather than from the many summaries that still quote the pre-2024 numbers.

The 13D line is the one worth reading twice. The SEC cut the initial deadline from ten days to five business days and set amendments at two business days, with the amended 13G deadlines applying from 30 September 2024 and structured data required from 18 December 2024. Guidance written before that is still circulating and still says ten days. If a tool, a checklist or a colleague quotes ten, it predates the change.

Where EDGAR stops, and a page monitor starts

EDGAR indexes filings. A great deal of what moves a position, or creates an obligation, is never a filing.

An investor relations page posts a press release before the 8-K is disseminated. A company newsroom announces a leadership change in a post that never becomes a filing at all. A regulator publishes an enforcement action, a no-action letter, or a guidance update on a web page with no feed. A portfolio company quietly edits its pricing page, or its terms, or the sub-processor list your vendor risk file depends on. None of that is in EDGAR, and no EDGAR feed will ever tell you about it.

This is the honest division of labour. Filings: use EDGAR, free. Everything around the filings: use a page monitor, because there is no index to subscribe to and the only way to know is to have been watching the page.

• Investor relations and newsroom pages, which often publish before the filing is disseminated
• Regulator enforcement and guidance pages, which rarely have a usable feed
• Executive and board pages, where a departure appears before any 8-K
• Pricing, product and terms pages at companies you hold or compete with
• Any page where you may later need to prove what it said on a date

The part EDGAR cannot do: prove what a page said on a date

An alert is not evidence. An RSS item tells you something appeared; it does not preserve what the page looked like, and it does not help six months later when someone asks what a company was claiming in March.

This is the difference that matters for compliance and research files. Every check we run saves a timestamped snapshot, so the record is not only that a page changed but what it said on any date since you started watching. A filing is immutable once disseminated and EDGAR keeps it. A web page is not, and nobody keeps it for you.

Start watching before you need the record. There is no retrospective fix: a monitor started today cannot tell you what a page said last quarter, and that is the moment most people discover the gap.

How to set up SEC filing monitoring

In order, cheapest first. Steps one and two cost nothing and cover most requirements.

1. 1Subscribe to the company's EDGAR feed. Search the company on EDGAR, filter to the form types you care about, and take the RSS link above the results. Repeat per company. This is the whole job for most filing monitoring.
2. 2Save a full-text search for phrases that cut across companies. Terms like a product name, a drug name or a legal phrase, filtered by form type and date, subscribed as a feed. This catches the filing you did not know to look for.
3. 3List the pages EDGAR will never index. The IR page, the newsroom, the regulator page, the leadership page. This list is usually shorter than people expect and you can name every entry on it.
4. 4Put those pages under a monitor and describe what deserves an alert in plain English rather than picking a CSS selector, so a cookie banner or a rotating testimonial does not wake anyone.
5. 5Match the schedule to the deadline from the table above. Hourly for the two-day and five-day forms and the pages around them; daily for quarterly material.
6. 6Route the alert to where the team already works, then decide what happens to it. An alert nobody owns is an alert nobody reads.

What happens after the alert fires

Detection is the easy half. The expensive half is that a filing alert lands in a shared inbox at 07:40, and someone has to decide whether it matters, who owns it, and what the reply is.

Alerts can go to email, Slack, a webhook, Microsoft Teams or Google Sheets, which covers routing to a channel. If the destination is a shared mailbox and the work after the alert is triage rather than a notification, that is a different job than monitoring.

InboxPilot, at inboxpilot.co, is built for that half. It is an AI workspace for the high-volume operational email a team shares, on Gmail and Outlook, and it classifies incoming mail, applies rules, routes on sender or request type or urgency, and drafts replies grounded in your own documents, with human approval as the default. It is our other product, so weigh that, but if filing alerts are arriving in a shared inbox and being triaged by hand, the workflow rather than the alert is where your time is going.

Mistakes that make filing monitoring useless

Four failures account for most abandoned setups, and none of them are about the tool.

• Watching the whole page. An EDGAR results page carries counters and timestamps that change constantly. Narrow to the results table, or describe the change worth an alert, or every check fires.
• Confusing filing date with event date. A Form 4 filed Thursday can report a Tuesday trade. The alert tells you when the document appeared, not when the thing happened.
• Believing a monitor that has gone quiet. A page is redesigned, the element you pinned no longer exists, and the monitor silently stops. Silence reads identically to nothing happened. Prefer a tool that fails loudly when its selector stops matching.
• Trusting a stale deadline. The 13D clock changed in 2024. Anything built against ten calendar days is now wrong by five business days, which on an activist position is the whole story.

Free or paid: which one you actually need

Match the row to your situation rather than buying up the table.

Our own plans start at 5 dollars a month for 5 pages on daily checks, rising by page count and check frequency, with a 14-day trial. If the first three rows are your whole requirement, use EDGAR and keep the money.