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, 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...
By Fanny Engriana — software engineer building FinanceTrackDaily, an SEC EDGAR aggregator covering 3,400+ US-listed equities. While stitching together the Fi...
This article is for informational purposes only and is not financial, legal, or tax advice. The author is a software engineer who builds SEC EDGAR aggregators, ...
Building FinanceTrackDaily on top of the SEC EDGAR API, I keep running into filings that are public, parseable, and easy to index — 10-K, 10-Q, 8-K, Form 4. T...
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...
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...
Disclaimer: This article is for informational and educational purposes only and is not financial, legal, or investment advice. The author is a software engineer...
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, I aggregate filings from roughly 3,400 US-listed companies every trading day. One filing type that surpr...
When I was building FinanceTrackDaily on top of the SEC EDGAR API, one filing type kept surfacing in unusual places: Schedule 13D. A hedge fund would buy more t...
Disclaimer: This article is for informational and educational purposes only and is not financial, legal, or tax advice. The author is a software engineer buildi...
This article is for informational and educational purposes only and does not constitute financial or investment advice. Past performance is not indicative of ...
When I built FinanceTrackDaily on top of the SEC EDGAR API, I quickly realized that one of the most-searched filing types was not the massive 10-K annual repor...
Why Capital Gains Tax Kept Coming Up in My SEC Filing Data Building FinanceTrackDaily on top of the SEC EDGAR API meant ingesting thousands of Schedule 13D, 13...
My friend Rachel texted me at 9:47 PM on Sunday night. No greeting, no context, just a Reuters link and the words "please tell me this is a joke." It was not a ...
It is March 11th. Tax Day — April 15th, 2026 — is exactly five weeks from today. If you have not filed yet, you are not alone. According to the IRS, roughly...