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 β it...
Building FinanceTrackDaily on the SEC EDGAR API, I spend most of my time parsing the filings that get all the attention β 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 β 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 β 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 β 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 β 10-Ks, 13Fs, S-1s β 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...
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 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...
Building FinanceTrackDaily on the SEC EDGAR system, I deal with a lot of corporate filings. Most are familiar names β 10-K, 10-Q, 8-K. But one filing type tha...
Building FinanceTrackDaily on top of the SEC EDGAR API, I keep running into filings that are public, parseable, and easy to index β 10-K, 10-Q, 8-K, Form 4. 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...
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 building FinanceTrackDaily on the SEC EDGAR API, the first insider filings I parsed were Form 4 transaction reports. They get the headlines &mda...
Building FinanceTrackDaily on the SEC EDGAR API means I aggregate live data on roughly 3,400 publicly listed US stocks. One of the most underappreciated filings...
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 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...
Building FinanceTrackDaily on top of the SEC EDGAR API has given me a strange but useful vantage point on US capital markets. I am a software engineer aggregati...
When I started building FinanceTrackDaily as an aggregator over SEC EDGAR, I assumed reading a public company's annual report would be straightforward β open ...
When I was building FinanceTrackDaily on top of the SEC EDGAR API, the filing type that surprised me most was not the famous 10-K or 8-K. It was Schedule TO β...
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 β 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...
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...
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...
SECURE 2.0 Act 2026 Changes: Auto-Enrollment, Enhanced Catch-Up, and Student Loan Match Explained Building FinanceTrackDailyβan aggregator that continuously...
Tax-Loss Harvesting in 2026: A Beginner's Guide to Turning Losses Into Tax Savings Building FinanceTrackDaily on top of the SEC EDGAR API has given me a front...
Disclaimer: This article is for informational and educational purposes only and does not constitute financial, investment, or legal advice. Fanny Engriana is ...
What SEC 10-K Filings Actually Reveal About a Company's Financial Health β And How I Read Thousands of Them Building FinanceTrackDaily When I started buildi...
Disclaimer: This article is for informational purposes only and is not financial advice. Every investor's situation is different. Please consult a licensed fin...
Last updated: April 15, 2026 | Reading time: 10 minutes Disclaimer: This article is for informational purposes only and does not constitute financial advice. P...