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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.
An engineer's view of SEC EDGAR's Full-Text Search API: endpoints, rate limits, pagination quirks, and educational research workflows for retail investors. Educational only, not financial advice.
When I was building FinanceTrackDaily on top of the SEC EDGAR API, one of the more curious form types I kept encountering in the daily filing feed was Form NT 10-K and Form NT 10-Q. Aggregating filings for over 3,400 US-listed stocks, I...
How to read SEC Form S-4 merger registration statements on EDGAR — written by the engineer who built FinanceTrackDaily's filing aggregator. Educational, not investment advice.
An engineer's walkthrough of the SEC's XBRL machine-readable filing format: what it is, why the SEC requires it, how iXBRL 10-Ks are structured, and what aggregating thousands of filings reveals about the data layer underneath public-company financial statements.