Sigma Journal, insider research, quant studies, transparency

Sigma Journal

Long-form, data-driven studies on 1.6M+ filings across 43 markets. Comparative regulation, walk-forward backtests, profiles, market mechanics.

780

published studies

1.6M+

filings analysed

markets covered

Market Mechanics

Alvopetro Energy Insider Buying Cluster Signals Mixed Prospects

Vice President Adrian Audet’s June 20 insider buys at Alvopetro Energy total EUR 55,000 amid ongoing dividend and operational updates, with mixed historical.

Jun 22, 20269 min

Market Mechanics

Extendicare Director Samir Aziz Manji's EUR 22M Buy Cluster

Samir Aziz Manji, Extendicare's independent director, bought EUR 22M in shares on June 20, 2026. Our insider data and cohort analysis dissect the trade's.

When insiders speak, we transcribe.

Alvopetro Energy Insider Buying Cluster Signals Mixed Prospects

Extendicare Director Samir Aziz Manji's EUR 22M Buy Cluster

Insider Buying Cluster at First Canadian Graphite Signals

Valkea Resources Insider Buying Cluster Signals Nuanced Market

Alphamin Resources Insider Buying Cluster Signals Cautious

Insider Buying Cluster at Groupe Dynamite Signals Cautious

Vizsla Silver Insider Buying Cluster Signals Mixed Market

Insider Buying Cluster at Alvopetro Energy Signals Cautious

Extendicare Inc. Insider Buying Cluster Signals Mixed Outlook

Insider Buying Cluster Signals Confidence at Groupe Dynamite Inc.

Insider Buying Cluster at Innovotech Inc. Signals Cautious

Extendicare Insider Buying Cluster Signals Director Confidence