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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, insider research, quant studies, transparency · page 37

Sigma Journal

When insiders speak, we transcribe.

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

43

markets covered

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

Market Mechanics

ABC Arbitrage: July 16 board sale and the 2028 plan

ABC Arbitrage’s July 16 board sale lands beside a mixed quant backdrop, a 2028 growth plan, and a modest insider cluster.

Jul 18, 202610 min

Market Mechanics

VTEX CSO sells EUR 10,566 as July 17 filing lands

VTEX’s CSO sold 6,000 shares under a 10b5-1 plan. Here is how that filing reads against e-commerce software, peers, and the stock.

1 2 3 4 5 6 7 8 9 10 11

Jul 18, 20268 min

Market Mechanics

Fink sells EUR 1.79m as BlackRock tops $15.34tn

BlackRock’s CEO sold EUR 1.79m after record AUM and a strong quarter. Read the sale against peers, buybacks, and the sector backdrop.

Jul 18, 202610 min

Market Mechanics

CIENA's July 15 sale and the AI optical trade

CIENA's July 15 insider sale lands as AI networking spending stays hot. We compare the filing with Lumentum, Arista and the optical tape.

Jul 18, 20268 min

Market Mechanics

Five TotalEnergies executives sell on July 16 as oil firms brace

Five TotalEnergies executives sold shares on July 16, just before July 23 results, with Brent firm and Q2 profit guidance turning higher.

Jul 18, 20269 min

Market Mechanics

ETSY July 15 sales: Silverman and Reiff trim $1.97m

ETSY’s July 15 insider sales came from Josh Silverman and Melissa Reiff. Read the cluster against a cautious consumer backdrop and marketplace peers.

Jul 18, 20269 min

Market Mechanics

MCAN’s July 17 buying cluster lands in a rate-hold market

MCAN Mortgage saw July 17 insider buying from Sylvia Pinto and Jashar Grewal as Canada’s mortgage market stays rate-stable and demand-constrained.

Jul 18, 202611 min

Market Mechanics

AQN insiders buy EUR 31k as utilities rerate

Algonquin insiders bought about EUR 31k on July 17. Read the cluster against a utilities sector lifted by AI load, grid capex and peer rerating.

Jul 18, 202611 min

Market Mechanics

Peter Laurence Clateman buys EUR 20,403 at Curaleaf

Curaleaf is consolidating near recent levels as Peter Laurence Clateman bought shares again. Here is what the filing means against cannabis sector catalysts.

Jul 18, 202610 min

Market Mechanics

Clear Secure CEO sells EUR 5.66m after Q1 growth

Clear Secure’s CEO sold EUR 5.66m after a strong Q1 print. We read the July 14 filing against the stock, peers and the recent insider cluster.

Jul 17, 202614 min

Market Mechanics

TotalEnergies, July buybacks and a Brent spike

TotalEnergies is riding a Brent-led energy rally, while July buybacks and a Q2 profit preview frame the latest insider read.

Jul 17, 20268 min

Market Mechanics

ABC Arbitrage: €30k of board selling into a volatile 2026

ABC Arbitrage’s board-linked seller trimmed into a volatile 2026 backdrop. Here is how the business model, peers and our data fit the filing.

Jul 17, 20268 min