Aug 12, 2026
When Do 10-K Filings Come Out? A 2021–2025 EDGAR Acceptance-Time Study
We studied 34,651 Form 10-K filings from 2021–2025: 74.69% were accepted in February or March, and 63.03% at or after 4 p.m. ET.
BLOG//research
SEC Filing Research & Insights
Guides, tutorials, and analysis to help you understand 10-Ks, 8-Ks, insider trades, and other SEC filings.
Jan 22, 2026
Introducing the Signals Feed: Algorithmic SEC Filing Alerts
Track cybersecurity incidents, bankruptcies, financial restatements, and insider buying clusters in one real-time feed. No more digging through EDGAR.
Jan 20, 2026
Schedule 13D Explained: How to Track Activist Investors
When an activist crosses 5% ownership, they have 5 days to file a Schedule 13D. That filing often precedes double-digit stock moves. Here's how to read them.
Jan 15, 2026
How to Read a Proxy Statement (DEF 14A): A Practical Guide
The proxy statement tells you how much executives get paid and whether the board is actually independent. Here's how to find the parts that matter.
Dec 30, 2025
How to Track What Congress Is Trading (Before the Ban Passes)
Learn how to find every stock trade made by members of Congress. See what Pelosi, Tuberville and others are buying before the pending trading ban takes effect.
Dec 24, 2025
AI Summaries for 8-K Filings: What Happened and Why It Matters
8-K filings now include plain-English summaries that explain the key facts in seconds. No legal jargon, no 50-page PDFs. Just what you need to know.
Dec 15, 2025
How to Find Any Company's CIK Number (3 Fast Methods)
The CIK is how the SEC identifies every public company. Here's how to look it up in seconds using EDGAR, bulk data, or a dedicated search tool.
Dec 14, 2025
Introducing the Earnings Feed API: Real-Time SEC Data for Developers
I shipped a public API for real-time SEC filings, insider transactions, and institutional holdings. Here's what you can build with it.
Dec 8, 2025
How to Get SEC Filing Alerts (5 Free Methods)
I tested every free way to get SEC filing alerts. Here's what actually works, from RSS feeds to dedicated tools.
Dec 1, 2025
Last10K vs BamSEC: Which SEC Tool Is Worth Paying For?
Last10K costs $99/year. BamSEC costs $828/year. I compare features, pricing, and which SEC filing tool fits different research workflows.
Nov 24, 2025
Insider Buying Trends by Sector: Where Executives Are Putting Their Money
Analysis of insider buying patterns across market sectors. Find out which industries see the most executive confidence and what it means for investors.
Nov 21, 2025
Form 4 Patterns That Predict Stock Moves (Data-Backed)
Cluster buys outperform single purchases by 0.9% monthly. Here are the insider trading patterns with actual predictive value, backed by academic research.
Nov 18, 2025
S-1 Filings Explained: How to Research IPOs Before They Go Public
Learn how to read S-1 registration statements to evaluate IPOs before they start trading. A complete guide to IPO research using SEC filings.
Nov 14, 2025
Which Industries File the Most 8-Ks? A Data Analysis
We analyzed thousands of 8-K filings to find which industries generate the most material events. The results reveal patterns useful for investors.
Nov 10, 2025
SEC EDGAR is Broken. Here's What to Use Instead.
15-minute delays, no alerts, terrible search. Why EDGAR frustrates investors and the free tools that actually work.
Nov 5, 2025
13F Filings: Track What Buffett and Bridgewater Are Buying
See exactly what hedge funds hold. Step-by-step guide to finding, reading, and using 13F filings. Updated 45 days after each quarter.
Oct 29, 2025
How to Research a Company Before Investing: A Step-by-Step Guide
A practical framework for researching stocks using SEC filings, financial analysis, and competitive research. No expensive tools required.
Oct 22, 2025
8-K Filings Explained: The Early Warning System for Investors
Learn what triggers an 8-K filing, how to read them, and why they're often the first sign of major company news.
Oct 8, 2025
5 Free SEC Filing Tools (I Tested Them All) - 2025
I compared every free SEC filing tool. Here's what actually works for tracking 10-Ks, 8-Ks, and insider trades without paying for Bloomberg or BamSEC.
Oct 1, 2025
How to Read a 10-K: The Only 5 Sections That Matter
Skip the boilerplate. Focus on these 5 sections to analyze any company's 10-K in 20 minutes, plus the red flags that signal trouble.
Sep 25, 2025
BamSEC vs Earnings Feed: Which SEC Filing Tool is Right for You?
An honest comparison of BamSEC and Earnings Feed. Covers features, pricing, and which tool fits your research workflow.
Jan 8, 2025
What Is Form 4? SEC Insider Trading Filings Explained
Form 4 reveals when executives buy or sell their own stock. Here's how to read these filings, what the transaction codes mean, and which trades actually matter.