Rule 144 and Selling Restricted Stock
Rule 144 sets the holding period and quarterly volume cap on insider sales of restricted stock, and no underwriter can waive it. See which cap binds today.
SEC filings
SEC filings as data: which forms companies actually file, what each one means, and what the paper trail shows around market events.
Filtering by topic #sec filings · clear
Early Lockup Release: Triggers and Waivers
Early lockup release explained: the price conditions in IPO underwriting agreements, and the discretionary waivers underwriters can grant without one.
Schedule 13D vs 13G: Rules and Deadlines
Schedule 13D vs 13G explained: who must file at 5% beneficial ownership, the shortened 2023 deadlines, and why a 13G to 13D switch matters far more.
How Companies Execute Buybacks: Rule 10b-18
How companies execute buybacks: the Rule 10b-18 safe harbor and its four conditions, accelerated repurchases, tender offers, and the filings that prove it.
What Is Form N-PORT? Fund Holdings Filing
What is Form N-PORT? The monthly SEC portfolio report that lists a fund's full holdings, derivatives, borrowings and liquidity buckets, line by line.
How to Read a Form 4 Insider Trading Filing
How to read a Form 4 insider filing, from the Section 16 filer rules to what each transaction code means, with data from a full year of SEC filings.
When Are 13F Filings Due? 2026 Deadlines
13F filings are due 45 days after each quarter ends. The four 2026 deadlines, the rolls that move them, and what the form never shows you about a portfolio.
How to Find a Stock's Earnings Date
A company sets its own earnings date and confirms it in a press release and an 8-K filing. Here is where to look, and how far an estimated date can move.
How to Find a Lockup Expiration Date
A lockup expiration date lives in the IPO prospectus, not on a calendar page. Where to find it, and why counting 180 days from the first trade gets it wrong.
Tesla's Bitcoin 10-K: Feb 8, 2021 on the Tape
Tesla's $1.5B bitcoin purchase, receipted: the Feb 8, 2021 filing and session tape, the sympathy rally in bitcoin stocks, the options shrug, and the 2022 exit.
Stock Float vs. Shares Outstanding Explained
A stock's float is the shares free to trade, shares outstanding minus locked-up insider stock. See what counts as a low float and how thin floats trade.
The Most Common SEC Filings, Explained by Data
The most common SEC filing is not the 10-K or the 10-Q. It is the insider Form 4. A data-backed guide to EDGAR's busiest forms, ranked, defined and explained.
SEC EDGAR Index Gap: the Missing Month-Ends
Three 2026 month-ends are near-empty in the SEC EDGAR filing index: the receipts, the ingest evidence that bounds the fault, the 2025 precedent, what breaks.