SEC Form 4 Explained: Insider Transaction Reporting (Engineer's Guide 2026)
Building FinanceTrackDaily on the SEC EDGAR API, I aggregate live filing data for roughly 3,400 publicly listed US companies. Of every filing type that streams ...
Building FinanceTrackDaily on the SEC EDGAR API, I aggregate live filing data for roughly 3,400 publicly listed US companies. Of every filing type that streams ...
Building FinanceTrackDaily on the SEC EDGAR API, I aggregate live filing data on roughly 3,400 publicly listed US companies. After spending months mapping how a...
When an insider at a public company wants to sell shares they received as compensation or hold as a controlling shareholder, a small notice usually hits the SEC...
When a private company finally lists its shares on the NYSE or Nasdaq, most people watch the opening price tick. Building FinanceTrackDaily on top of the SEC ED...
When a private US company decides to go public, the document that starts everything is SEC Form S-1. It is the registration statement a domestic issuer files be...
Building FinanceTrackDaily on the SEC EDGAR API, I spend a lot of time watching which filings move markets and which ones quietly reshape who controls a company...
Building FinanceTrackDaily on the SEC EDGAR API, the filing that taught me the most about the rhythm of public-company disclosure was not the annual 10-K — it...
Building FinanceTrackDaily on the SEC EDGAR API, I spend most of my time parsing the filings that get all the attention — 10-K annual reports, 8-K material ev...
Building FinanceTrackDaily on the SEC EDGAR API, I read a lot of filings that retail investors obsess over — 10-K annual reports, 8-K material events, Form 4 ...
Building FinanceTrackDaily on the SEC EDGAR API, I spend most of my time inside filings that move markets — 10-Ks, 8-Ks, Form 4 insider trades. Form SD is not...
Building FinanceTrackDaily on the SEC EDGAR API, I spend a lot of time staring at filing schemas that most retail investors never open. Form N-PX is one of thos...
This article is for informational and educational purposes only and is not financial, investment, legal, or tax advice. The author is a software engineer who b...
By Fanny Engriana — software engineer building FinanceTrackDaily, an SEC EDGAR aggregator covering 3,400+ US-listed equities. While stitching together the Fi...
Building FinanceTrackDaily on top of the SEC EDGAR API, I spend a lot of time watching filings stream in for the 3,400+ U.S. issuers we aggregate. Among the wel...
Building FinanceTrackDaily on the SEC EDGAR API, I have spent a lot of time with public filings — 10-Ks, 13Fs, S-1s — the documents that arrive on EDGAR and...
Building FinanceTrackDaily on the SEC EDGAR API, the very first filing I had to teach my parser to understand was the Form 10-K. It is the document that anchors...
Building FinanceTrackDaily on the SEC EDGAR API, I spent weeks indexing the universe of registered investment companies and quickly discovered that closed-end f...
Building FinanceTrackDaily on the SEC EDGAR API, one of the most underappreciated filings I keep running into is Form ATS-N. Most retail investors have never he...
Disclaimer: This article is for informational and educational purposes only and is not financial, investment, legal, or tax advice. The author is a software eng...
When I started aggregating SEC EDGAR data for FinanceTrackDaily, my focus was on issuer filings like 10-K and 8-K. But a question kept surfacing from readers: h...
This article is for informational and educational purposes only and is not financial, investment, legal, or tax advice. It is also not a recommendation to engag...
When I started aggregating SEC EDGAR data for FinanceTrackDaily, the filings I expected to understand quickly were 10-K and 10-Q annual and quarterly reports. T...
Disclaimer: This article is for informational and educational purposes only and is not financial, tax, investment, or legal advice. The author is a software eng...
When I started building FinanceTrackDaily on the SEC EDGAR API, the first insider filings I parsed were Form 4 transaction reports. They get the headlines &mda...
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 1...
When I started building FinanceTrackDaily as an aggregator over SEC EDGAR, I assumed reading a public company's annual report would be straightforward — open ...
Building FinanceTrackDaily on the SEC EDGAR API, one of the more interesting filing categories I parse is Form D. While most retail-investor coverage focuses on...
When most US investors hear "annual report," they think 10-K — the dense filing US-domiciled public companies file each fiscal year. But hundreds of large for...
Building FinanceTrackDaily on top of the SEC EDGAR API meant I had to teach my aggregator how to recognize, parse, and store every common filing type a US publi...
This article is for informational and educational purposes only. It is not financial, investment, legal, or tax advice. The author is a software engineer who bu...