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Multi-market insider intelligence. Official public filings, re-aggregated and scored. Free account open.

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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 2026-05-27. 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).

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Sigma Journal / Market Mechanics

Market Mechanics

From filing to price impact: microstructure, currency-normalised comparisons, walk-forward design.

721

published studies

Market Mechanics

Publicis: Nigel Vaz sells EUR 2.21m as peers wobble

Publicis still has growth on its side, but Nigel Vaz’s EUR 2.21m sale joins a 7-insider cluster just as ad peers stay uneven.

Jul 31, 202610 min

Market Mechanics

TSMC VP Tien Bor-Zen buys again as AI capex runs hot

TSMC’s VP added to July buys while AI capex, a 7.64% share jump and a raised 2026 guide frame the filing against a hot foundry backdrop.

Jul 31, 202610 min

Market Mechanics

1 2 3 4 5 6 7 8 9 10

ALTEN: two July 30 sales, and a CAC 40 backdrop

ALTEN’s July 30 insider sales land after a firmer Q2 and a stronger CAC 40. Here is how the filings stack up against the business and peers.

Jul 31, 20269 min

Market Mechanics

MapLight’s 1,209,225-share buy cluster after ZEPHYR

MapLight drew a late-July insider buy cluster after mixed schizophrenia data. Here is how the filings stack up against peers, cash, and the sector.

Jul 31, 202610 min

Market Mechanics

Christian Guillemot buys EUR 1.8m as Ubisoft lags EA and TTWO

Christian Guillemot bought about EUR 1.8m of Ubisoft shares on July 29, while the stock lagged peers and the sector kept healing slowly.

Jul 31, 20268 min

Market Mechanics

Nigel Vaz sells EUR 2.2m as Publicis tests AI growth

Publicis is riding AI-led ad spend and a firmer Paris share price. Nigel Vaz sold EUR 2.2m, and the cluster makes the filing harder to ignore.

Jul 30, 20269 min

Market Mechanics

Dr. Lal PathLabs: 8 insiders, one July 30 buying cluster

Dr. Lal PathLabs hit a 52-week high after strong Q1 FY27 results. A July 30 insider cluster adds context, but the filing is small.

Jul 30, 202610 min

Market Mechanics

ALTEN’s July 30 sales after a 19.46% jump

ALTEN’s July 30 insider sales came after a 19.46% surge and a raised outlook. Read them against Sopra Steria, defence demand and the French tape.

Jul 30, 202610 min

Market Mechanics

GM’s July 27 to 28 sales versus Ford’s stronger run

GM’s CEO and president sold into a near-highs tape as U.S. auto demand held up. Here is how that cluster reads against Ford and the sector.

Jul 30, 20269 min

Market Mechanics

LUNR: Advent sells EUR 129.7m as space stocks swing

Advent International sold EUR 129.7m of Intuitive Machines stock as LUNR slid 7.92% and the space peer group stayed volatile.

Jul 30, 20269 min

Market Mechanics

KTOS July sales cluster before August 4 earnings

Kratos saw July insider selling across six names before August 4 earnings. Here is how the filings line up with defense demand, backlog, and peers.

Jul 30, 20269 min

Market Mechanics

Thomson Reuters: 11 insiders bought on July 28

Thomson Reuters drew 11 insider buys on July 28 as legal-tech demand, AI adoption and an August 5 earnings date frame the move.

Jul 30, 20269 min