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
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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.
US Biogen Inc (BIIB)
Signal Significant insider selling
Activity score Exceptional outlier 10+
Net flow -$239.7k
US Biogen Inc (BIIB)
Signal Significant insider selling
Activity score Exceptional outlier 10+
Net flow -$799.8k
US Biogen Inc (BIIB)
Signal Significant insider selling
Activity score Exceptional outlier 10+
Net flow -$268.2k
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
US Biogen Inc (BIIB)
Significant insider selling
1 insider sold $239.7k · unusual vs history · clustered activity
post-earnings
Post-earnings contrarian Director led +1 more
Exceptional 10+
-$239.7k 1 Aug 3 - 4, 2026 Aug. 5, 2026
US Biogen Inc (BIIB)
Significant insider selling
1 insider sold $799.8k · unusual vs history · clustered activity
post-earnings · near 52-week high
Post-earnings contrarian Price at 52-week high +2 more
Exceptional 10+
-$799.8k 1 Feb 2 - 9, 2026 Feb. 10, 2026
US Biogen Inc (BIIB)
Significant insider selling
1 insider sold $268.2k · unusual vs history · clustered activity
pre-earnings · near 52-week high
Pre-earnings distribution Price at 52-week high +2 more
Exceptional 10+
-$268.2k 1 Feb 2, 2026 Feb. 3, 2026