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InsiderTradesSIGMA

Multi-market insider intelligence. Official public filings, re-aggregated and scored. Private beta.

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Built in Paris. Public sources across 43 markets: AMF France, SEC EDGAR Form 4 US, BaFin Germany, SIX SER Switzerland, RNS United Kingdom, SEDI Canada, Consob Italy, CNMV Spain, AFM Netherlands, FSMA Belgium, Oslo Bors Norway, Nasdaq Helsinki, Nasdaq Copenhagen, ASX Australia, FMA Austria, CVM Brazil, HKEX Hong Kong, BSE-Sofia Bulgaria, Tadawul Saudi Arabia, DART South Korea, EDINET Japan, SSE and SZSE China, SEBI India, KNF Poland, PSE Philippines, NZX New Zealand, JSE South Africa, among others. Prices + fundamentals via Yahoo Finance, STOXX 600 sector ETFs (iShares Xetra). Stack: Next.js 16, Prisma, Vercel. Live out-of-sample tracker since 2026-05-16. Methodology audits: /methodologie and /docs/method-review/.

Sources: official public filings under MAR Art.19 (EU and EEA), SEC Section 16 / Form 4 (US), Art.56 SESTA (CH, SIX SER), NI 55-104 / SEDI (CA), Corporations Act s205G (AU) and equivalent regimes. Signals on this site are for educational use only and do not constitute investment advice within the meaning of MiFID II / SEC Reg-IA. Past performance does not guarantee future results. Swiss SIX SER filings are anonymised by law (role only, no name).

© 2026 Insiders TradesΣ·Private beta·Hosted on Vercel

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Sigma Journal · 208 studies

When insiders speak, we transcribe.

Long-form, data-driven studies on 1.3M+ filings across 43 markets. Comparative regulation, walk-forward backtests, profiles, market mechanics.

All Regulation & Transparency Quant & Backtests Insider Profiles Market Mechanics Engineering Industry Analysis Newsletter

Quant & Backtests

Understanding Sharpe and Deflated Sharpe Ratios in Backtests

Learn how to critically assess backtest claims using the Sharpe ratio and the Deflated Sharpe Ratio, which accounts for biases and multiple testing.

May 17, 202612 min

Quant & Backtests

Understanding Insider Trading Before Earnings Announcements

This article explores the implications of insider purchases made close to earnings announcements and their potential impact on stock performance.

1 2 3 4 5 6 7 8 9 10 11

May 17, 202615 min

Quant & Backtests

Why Insider Holding Periods Matter for Investors

Understanding insider holding periods can provide deeper insights into stock performance. Analyzing buy-to-sell distributions reveals the conviction behind insider trades.

May 17, 202614 min

Quant & Backtests

Do CFO Stock Purchases Outperform CEO Purchases?

This article examines the impact of CFO versus CEO stock purchases on market performance, analyzing their information density and market influence.

May 17, 202614 min

Quant & Backtests

Understanding Insider Trading: The Power of Cluster Signals

Insider trading signals are stronger when multiple insiders trade together. This article explores the significance of cluster trades across various markets.

May 17, 202613 min

Quant & Backtests

Do Women Insiders Outperform Men? A Data-Driven Analysis

This article examines whether women insiders outperform their male counterparts on a T+90 basis, considering various factors that influence trading performance.

May 17, 202613 min

Regulation & Transparency

Understanding the Importance of Footnotes in Insider Trading Reports

Insider trading disclosures are often misleading without footnotes. Learn how to interpret Form 4 filings and the significance of footnotes in understanding trades.

May 17, 202614 min

Regulation & Transparency

Understanding the Impact of France's BDIF on Insider Disclosures

France's BDIF, launched in 2009, transformed insider transaction disclosures by centralizing access, yet challenges in data usability remain.

May 17, 202612 min

Regulation & Transparency

Understanding Insider Transaction Disclosure Across Regulators

Explore the complexities of insider transaction disclosure rules in the US and EU, highlighting differences in enforcement and publication timelines.

May 17, 202613 min

Regulation & Transparency

Understanding Italy's Insider Declarations Data Challenges

Italy's insider dealing disclosures have shifted from CONSOB to eMarket STORAGE, complicating data retrieval and historical continuity for researchers.

May 17, 202610 min

Regulation & Transparency

Comparing Insider Dealing Disclosure Across 17 Markets

This article examines the insider transaction disclosure regimes in 17 markets, highlighting differences in deadlines, public access, and sanctions.

May 17, 202612 min

Regulation & Transparency

Understanding the Impact of Filing Clocks on Insider Trading

Explore how the SEC and EU MAR filing clocks differ and their implications for insider trading. Learn about the nuances that affect market behavior.

May 17, 202614 min