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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

Four CHCO directors bought on July 21, before earnings

Four City Holding directors bought shares on July 21 near $134.55, just before earnings. The cluster matters, but the risks are real.

Jul 22, 202610 min

Market Mechanics

ABC Arbitrage board seller trims EUR 12,766 as ECB stays tight

ABC Arbitrage’s board seller filed two July disposals as ECB policy, volatility and a 3.1% yield frame the stock’s July drift.

Jul 22, 202610 min

Market Mechanics

1 2 3 4 5 6 7 8 9 10

Phillips 66: Vanessa Sutherland sells 4,086 shares as PSX tests

Phillips 66 is near 52-week highs while Vanessa Allen Sutherland sold 4,086 shares under a March 2026 10b5-1 plan. Here is the honest read.

Jul 22, 20269 min

Market Mechanics

Butterfly Network: CEO sells EUR 1.39m as July 30 nears

Butterfly Network saw a July insider selling cluster, led by CEO Joseph DeVivo’s EUR 1.39m sale, as POCUS peers and healthcare stocks reset.

Jul 22, 20269 min

Market Mechanics

Alamos Gold: 10 insiders bought on July 20, 2026

Alamos Gold insiders bought in a July 20 cluster as gold held near $4,000. Here is how the filing fits the miner, peers and the next results date.

Jul 22, 20268 min

Market Mechanics

Santacruz Silver: July 21 director buy and the silver rally

Santacruz Silver drew a July 21 director buy as silver stayed hot, peers posted bigger scale, and the stock sat far below its January peak.

Jul 22, 20269 min

Market Mechanics

Vivendi’s 4 July 20 buys, and what they say

Four Vivendi executives bought shares on July 20 as media and streaming demand stay firm, with ECB policy and sector peers in the frame.

Jul 22, 202611 min

Market Mechanics

BNP Paribas at 103.30 euros, with no fresh filing

BNP Paribas is holding near 103.30 euros as European banks stay firm. The catch is simple, there was no fresh insider filing in the last week.

Jul 21, 202610 min

Market Mechanics

Airbus at €191.78, with Farnborough orders doing the work

Airbus trades near €191.78 as Farnborough orders pile up, Boeing stays close, and the latest insider record remains quiet.

Jul 21, 20268 min

Market Mechanics

Sanofi at 77.34 euros, with July 30 earnings ahead

Sanofi trades near 77.34 euros as Sarclisa gets an FDA win, EU antitrust pressure builds, and the next check point is July 30 results.

Jul 21, 20268 min

Market Mechanics

MARA CEO and CFO sell after July 17 filings

MARA’s CEO and CFO both sold shares under 10b5-1 plans as Bitcoin held near $65,000 and miners tracked the coin more than the index.

Jul 21, 20269 min

Market Mechanics

ABC Arbitrage: July 20 board sale, EUR 806,783 net selling

ABC Arbitrage sits in a volatile rates and arbitrage backdrop as a July 20 board sale joins EUR 806,783 of net insider selling over 90 days.

Jul 21, 20269 min