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Engineer's guide to SEC Form 13H: large trader thresholds, LTID assignment, broker-dealer monitoring, and why this confidential filing sits outside the public EDGAR feed.
An engineer-built explainer of SEC Form 11-K: the annual report for employee stock purchase, savings, and similar plans, with EDGAR aggregation observations and educational reading tips for plan participants.
From the perspective of an engineer building a SEC EDGAR aggregator: what Form S-3 is, who can file it, how 424B takedowns chain off a shelf, WKSI eligibility, ATM mechanics, and common pipeline pitfalls. Educational only.
What SEC Form 3 and Form 5 actually disclose, when they are due, and how to read them on EDGAR alongside the more famous Form 4.
SEC Form 25 is the official notification that removes a security from a national securities exchange. Engineer breakdown: who files it, the 10-day effectiveness rule, Form 25 vs Form 15, and EDGAR pipeline mechanics for tracking delistings.
Building FinanceTrackDaily on the SEC EDGAR API exposed an interesting filing pattern: foreign companies listed on US exchanges do not file 8-K. They file Form 6-K instead. This guide walks through Form 6-K from an engineer's perspective — structure, timing, EDGAR endpoints, and what the filing actually tells investors.