Insider activity signals

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Transactions from all insiders
Plus and above
Largest buys

Biggest insider purchases by total value
Largest sells

Biggest insider sales by total value
Top insider buys

Companies with the highest insider buying activity
Top insider sells

Companies with the highest insider selling activity
Top cluster buys

Companies with the most insiders buying
Top cluster sells

Companies with the most insiders selling
Buying the dip

Insiders buying after 5%+ price drops
52-week high + Insider activity Pro+

Companies within 5% of 52-week highs with insider activity
52-week low + Insider activity Pro+

Companies within 5% of 52-week lows with insider activity
Transactions from executives
Plus and above
Top executive buys

Companies with the highest executive buying activity
Top executive sells

Companies with the highest executive selling activity
Transactions from top insiders
Premium
Top insider buys from high-rated insiders

Buys from insiders with proven track records
Recent trades from top insiders

Latest buy and sell transactions from top-rated insiders
Activity signals
Premium
Insider activity signals

Unusual activity detected via statistical analysis against historical baselines
This screen detects unusual insider trading activity using statistical analysis against historical baselines.
Signals are generated by comparing current insider activity against a 5-year historical baseline using Z-scores. The analysis also considers whether trades come from routine traders (predictable patterns) or opportunistic traders (irregular timing). Companies flagged by both methods receive a higher confidence score.
The information provided in this screen is for informational purposes only and does not constitute financial advice. We do not endorse any specific investment based on these criteria.
GB 4Basebio PLC (4BB)
Signal First insider buying in 4 years, 2 months
Activity score Exceptional outlier 10+
Net flow $52.8k
GB 4Basebio PLC (4BB)
Signal Significant insider buying
Activity score Exceptional outlier 10+
Net flow $21.5k
Insider activity signals: Unusual insider trading activity detected using statistical analysis. Signals are ranked by strength and include buying and selling clusters.
Company Latest signal Signal score Net flow Insiders Activity window Last updated
GB 4Basebio PLC (4BB)
Significant insider buying
1 insider bought $12.7k
pre-earnings
Pre-earnings accumulation Executive led +2 more
Very strong 6.1
$12.7k 1 May 21, 2026 May 22, 2026
GB 4Basebio PLC (4BB)
First insider buying in 4 years, 2 months
3 insiders bought $52.8k
Executive led Block-trade concentrated +1 more
Exceptional 10+
$52.8k 3 Feb 10 - 13, 2026 Feb. 16, 2026
GB 4Basebio PLC (4BB)
Significant insider buying
1 insider bought $21.5k
Executive led Block-trade concentrated +1 more
Exceptional 10+
$21.5k 1 Dec 20, 2021 Dec. 20, 2021