Catch insider conviction the moment it clusters.
InsiderClusters parses every SEC Form 4 filing and alerts you when two or more insiders buy the same stock around the same time — the rarest, highest-signal pattern in insider trading.
7-day free trialCancel anytimeStraight from SEC EDGAR
What we count as a cluster
- 2+
- distinct insiders
- Open-market
- code-P buys
- Any size
- market cap
- Real-time
- EDGAR polling
The thesis
Most insider trades are noise. Clusters aren't.
A single executive buying their own stock can mean almost anything — compensation, optics, a routine plan. The signal is easy to over-read in isolation.
But when several independent insiders buy the same company within a short window, that's coordinated conviction that's hard to fake. We surface those events — every figure one click from an official SEC filing.
1 insider
One director buys. Could be anything. We skip it.
3 insiders
Officers + a director, same stock, 9 days. That's a cluster.
How it works
From filing to alert in minutes
A single, automated pipeline — no spreadsheets, no manual EDGAR spelunking.
- 01
We watch EDGAR
Our scraper polls SEC filings continuously and parses every insider open-market purchase the moment it's published.
- 02
We detect clusters
When 2+ distinct insiders buy the same stock inside a rolling window, that's flagged as a cluster.
- 03
You get alerted
Clusters land in your dashboard in real time — plus instant email and Telegram alerts on Pro — before the crowd notices.
Built for signal
Everything you need to act on insider buying
Purpose-built for one job — surfacing clustered insider conviction — and nothing you don't need.
Real-time EDGAR monitoring
We poll SEC EDGAR continuously and parse each Form 4 the second it lands — no delay, no polling schedules to manage.
Cluster detection engine
Rolling detection window, distinct-insider dedupe, and open-market-only filtering applied automatically to every filing.
Source-linked transparency
Every transaction links straight back to the original SEC filing, so you can verify each buy at the source.
Role-weighted conviction
A CEO or CFO buying alongside others outranks a cluster of only directors — we flag the high-conviction ones for you.
Alerts where you work
Get clusters in your dashboard, inbox, and Telegram — instant alerts for Pro members, the moment they form.
Anatomy of a signal
Every cluster, decoded at a glance
No black boxes and no invented scores — just the raw pattern, labeled.
- 1
The company
Ticker and issuer, linked to its full cluster history and every underlying filing.
- 2
Distinct insiders
How many different people bought. Two is the floor — that's what makes it a cluster.
- 3
High-conviction flag
Lights up when a C-suite officer is among the buyers — historically the strongest signal.
- 4
Total bought
Combined open-market dollars, summed straight from each insider's Form 4.
- 5
Rolling window
Every buy lands inside a rolling window, so you see conviction that clusters in time.
Live from EDGAR
Recently detected clusters
3,317 clusters across 2,042 companies since January 2022 — $24.3B of insider buying, every dollar traced to an SEC filing.
Why not do it yourself
You could watch EDGAR by hand. This is faster.
The cluster rule is simple to state and tedious to run — so we run it, continuously, for you.
| InsiderClusters | Manual EDGAR | Generic screener | |
|---|---|---|---|
| Multi-insider cluster detection | Manual | ||
| All market caps, no blind spots | Partial | ||
| Real-time as filings land | Varies | ||
| Every figure linked to its SEC filing | |||
| Role-weighted conviction flag | |||
| Setup time | Seconds | Hours / week | Minutes |
Pricing
Try it free for 7 days. Keep it when the edge pays for itself.
One high-signal feed, real-time on every plan — instant alerts on Pro.
Basic
Every cluster, in real time.
or $86.4/year — save 20%
Start 7-day free trial- Real-time cluster feed — no delay, no caps
- Full multi-year cluster history
- Weekly email digest of the top cluster
- Direct links to the underlying SEC filings
Pro
Most popularHear about it the moment it's detected.
or $182.4/year — save 20%
Start 7-day free trial- Everything in Basic
- Instant email alerts as clusters form
- Instant Telegram alerts as clusters form
- Cancel anytime
Want the details? See full pricing and FAQ →
FAQ
Questions, answered
Everything else you might want to know before you sign up.
What exactly counts as a “cluster”?
Two or more distinct insiders making open-market purchases of the same stock inside a rolling window. We dedupe by person, so one insider filing twice never counts as two.
Where does the data come from?
Directly from SEC EDGAR Form 4 filings, which insiders are legally required to file. We parse every filing ourselves and link each figure back to the original document — nothing is invented or estimated.
How fast are the alerts?
Every plan gets the cluster feed in real time, the moment we detect them. Pro adds instant email and Telegram alerts, so clusters reach you without opening the dashboard; Basic includes a weekly digest of the top cluster.
Do you cover large-caps too, or only small companies?
Every company size. We track clusters from micro-caps to mega-caps — wherever two or more insiders buy on the open market together, it shows up in the feed. No market-cap blind spots.
Do I need a credit card to start?
Signup itself is a single magic link, no card. Both plans then start with a 7-day free trial — you add a card at checkout but aren't charged until the trial ends, and you can cancel anytime before that at no cost.
Is this investment advice?
No. InsiderClusters is an informational tool built on public SEC filings. It surfaces a pattern; what you do with it is your call.
Start tracking insider conviction today
Create your account in seconds, then try any plan free for 7 days.
7-day free trial · Cancel anytime · Data straight from SEC EDGAR.