Insider Cluster Buys
Beta
Track verified open-market purchases by CEOs, CFOs, and Directors. Filter out 10b5-1 planned sales to find high-conviction stock signals.
Identify multiple insiders buying simultaneously
Market Activity (Mar 02)
Scope: SEC Form 4 filings reported on the selected date. Includes Open Market transactions and Option Exercises; excludes Grants, Gifts, and Private Transfers.
Scope: SEC Form 4 filings reported on the selected date. Includes Open Market transactions and Option Exercises; excludes Grants, Gifts, and Private Transfers.
168 Insider Companies
High
Activity Level: Based on the number of active companies vs. the 30-day moving average.
88% Sells
Purchases: $145.87 M
Sells: $1.02 B
Transaction Breakdown (Count):
Strong Buy: Direct open market purchases (Transaction Code P).
69
Purchases
Direct Sale: Pure liquidation of shares (Transaction Code S).
93
Sells
Option Action: Sales resulting from option exercises (Code M).
54
Exercises
High Conviction Signals (24h)
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Cluster (5)Cluster Buy: 2 unique insiders purchased shares within a 7-day window.· Avg $16.00Weighted Avg Price: Calculated based on total value / total shares bought by the cluster.-23.9%Signal Return: Stock performance since the transaction date.Return
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Cluster (4)Cluster Buy: 2 unique insiders purchased shares within a 7-day window.· Avg $5.00Weighted Avg Price: Calculated based on total value / total shares bought by the cluster.+ 4.6%Signal Return: Stock performance since the transaction date.Return
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Cluster (3)Cluster Buy: 2 unique insiders purchased shares within a 7-day window.· Avg $62.57Weighted Avg Price: Calculated based on total value / total shares bought by the cluster.-2.7%Signal Return: Stock performance since the transaction date.Return
Top Transactions
Screening Logic
- Transactions > $50,000 only.
- Ranked by 'Amount + Role'. Prioritizes C-Suite & 10% Owners.
Note: A medium buy by a CEO may rank higher than a large buy by a Director.
Filing Date:
Must Include:
Filters:
Data Methodology & Reference
Understanding insider signals and SEC reporting standards.
Signal Legend
GuideOpen Market
Buy
Buy (Open Market)
Open market or private purchase
Sell
Sell (Open Market)
Sale on open market
Incentives & Derivatives
Grant: Awarded
Exercise: Option Exercise/Conversion
Conv.: Derivative
Other Context
Tax: Tax Payment
Gift: Donation
Issuer: Sale back to issuer
Other: Private transaction
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Exit: Departure
Data Methodology & Reference
What exactly constitutes a "Cluster Buy"?
A Cluster Buy is defined as three or more unique insiders purchasing stock within a short timeframe (usually 7 to 14 days). It transforms an individual signal into a Company Consensus.
Why are Cluster Buys safer for investors?
"Safety in Numbers." One executive might be wrong or overconfident, but it is statistically rare for 3-5 executives to all be wrong about their company's prospects at the same time.
Does the "Quality" of the cluster matter?
Absolutely. A cluster involving the CEO and CFO is stronger than a cluster of three independent directors. Our "High Conviction" algo gives more weight to clusters that include C-Level executives.
Are "Grant Vesting" events considered clusters?
No. We filter out "Grants" and "Option Exercises." A true Cluster Buy on 13Radar only tracks Open Market Purchases—where insiders reach into their own pockets to buy shares simultaneously.
Do institutions (10% Owners) count in clusters?
While valuable, we separate institutional buying from management buying. A true "Insider Cluster" reflects operational confidence, whereas institutional clusters reflect external fund sentiment.
What is the success rate of Cluster Buys?
Academic studies and backtests suggest that Cluster Buys have one of the highest "Win Rates" among all insider signals, particularly when they occur near 52-week lows, serving as a strong support level.
SEC Form 3
Initial Statement
A snapshot of holdings filed when someone first becomes an insider. Contains no trading activity. Useful for establishing a baseline only.
Our Focus
SEC Form 4
The Gold Standard
Filed within 2 days of a trade. This is where real-time, actionable signals (Buys/Sells) appear. Our platform is optimized to track these instantly.
SEC Form 5
Annual Statement
Year-end summary for small transactions or gifts reported late. Usually considered "stale data" with low signal quality due to the time lag.