PennySignal
INSIDER CLUSTERS

When insiders cluster, that's the signal.

PennySignal is a standalone alert service for penny stocks. It watches every insider transaction under $5/share, and the moment 2+ different insiders buy the same stock in the same short window, you get an alert — company, ticker, and insider count, sent the moment it happens.

See real results →

Every alert this has ever sent is public, including the losers — nothing curated out after the fact.

Try it free for 14 days — then $7.99/month
14-day free trial on monthly plans · Cancel anytime
The alert itself

What every alert looks like

The actual layout every alert uses — illustrative numbers, not a captured historical send.

By email

By notification

9:41●●●●  LTE  🔋
XYZ clustersignal.io now
New BUY alert (PennySignal). Tap to view.
XYZ 3 insiders
Example Corp · $2.14

3 insiders have bought $187K, incl. CEO, CFO 6 days ago.

Insider Signal
Number of insiders3 buyers
Total amount$187K
RolesCEO, CFO, Director
Technical Analysis
RSI (14)34.2 — Low
vs SMA 200d-8.3%
Volume (5d / avg 30d)1.8×
Financial Health
Revenue Growth (YoY)+12.4%
P/E ratio18.2×

Tap the notification to open the full write-up on PennySignal's site — no separate app to install.

Not a real alert — see the actual track record →

Delivery

How you receive it

Real screenshots — not mockups. Pick a channel to see the same alert as it actually arrives.

By email

Real phone screenshot of PennySignal alert emails

A real BUY alert, received by email.

By notification

Real phone screenshot of PennySignal push notifications

The same alert, this time as a push notification through the ClusterSignal app.

How it works

Three inputs. One signal.

An alert lands in your inbox the moment the pattern shows up — nothing to check, nothing to interpret.

1
Watch

Every insider transaction under $5/share, pulled daily from public filings.

2
Detect

2+ different insiders buy the same stock in the same window — that's a cluster.

3
Alert

You get the ticker and insider count — by email, app notification, or both.

An observation, not advice

What the backtested data favors

Not a recommendation to follow, and not part of the alert itself — an example of the profit targets that performed best in testing, scaled by insider count.

InsidersExample target
2 Insiders+15%
3 Insiders+20%
4+ Insiders+25%

Not a rule for any specific position — just what backtesting favored. Exit decisions, including whether and when, are the trader's own call.

Definitions

What "penny stock" means here

The specific thresholds that decide what qualifies as a cluster.

Price range
Under $5/share — the SEC's own penny-stock definition
Detection window
14–21 days for a tight cluster, up to 120 days for a slower-building one
Minimum insiders
2 distinct people, same direction, same window
Minimum size
$50,000+ per qualifying transaction
Proof

Track record

Every alert this has ever sent is on the results page, including the losers — nothing curated out after the fact.

See real results →
Pricing

Simple and transparent

Everything is included in every plan — choose your commitment.

✅
PennySignal only
14 days free
Founding Member
$9.99 / month
$7.99 / month
Founding rate — yours for life if you join before Dec 2
Start free trial

14 days free, then billed monthly · Cancel anytime

Lifetime access †
$249.99 once
One-time payment · no renewal
Get lifetime access

Your data stays private

PennySignal + ClusterSignal

Also trade large/mid-cap stocks? ClusterSignal applies the same insider-cluster detection with a full 5-axis score (technicals, fundamentals, analyst sentiment) instead of just insider count. See ClusterSignal →

14 days free
Combo Monthly
$22.99 / month
$17.99 / month
Founding rate — yours for life if you join before Dec 2
Start free trial

14 days free, then billed monthly · Cancel anytime

Combo Lifetime †
$499.99 once
One-time payment · no renewal
Get lifetime access

Your data stays private

† "Lifetime" access is valid for as long as the product is operating. If the project closes or is suspended, no refund is guaranteed. ClusterSignal/PennySignal reserve the right to change access terms with reasonable notice.

🔒 Join before December 2, 2026 and keep your founding rate for life ($7.99/month, or $17.99/month for the Combo), as long as you stay subscribed. After that date, the price goes up for new members.
FAQ

Questions before you subscribe

The things worth knowing up front — including the parts that aren't flattering.