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Topic
Sec filings
11 guides in Finabase Learn
- 13F filings: what institutional holdings reports show and miss Who must file Form 13F, the 45-day lag, what is reported and left out, how 13F differs from Schedules 13D and 13G, and the traps in reading fund holdings.
- Form 8-K: what triggers it, the item numbers and how to read one What forces a US company to file a Form 8-K, the item numbers that matter, the four-business-day deadline, furnished vs filed, and Apple’s real 8-Ks from 2025–26.
- How earnings season works: calendar, estimates and the reaction How the quarterly US earnings season is organized: filing deadlines, pre-announcements, consensus estimates, whisper numbers, the call and the reaction.
- How to read a 10-K: a guided walkthrough of Apple’s annual report Read a 10-K item by item using Apple’s fiscal 2025 report: what each section holds, its page number, what to read first, a checklist and the red flags.
- How to read a 10-Q: quarterly reports, nine-month columns and TTM Read a quarterly 10-Q the right way: unaudited condensed statements, year-to-date columns, the missing fourth quarter and trailing-12-month math, using Apple.
- Insider trading Trading by corporate insiders; legal when reported to the SEC, illegal when based on material non-public information.
- Insider trading filings: Forms 3, 4 and 5 and how to read them Who counts as a Section 16 insider, the Form 3, 4 and 5 deadlines, the transaction codes, Rule 10b5-1 plans, and how to tell a real insider buy from routine selling.
- Institutional investor An organization that invests large pools of money for others, such as pension funds, mutual funds, insurers and endowments.
- Non-GAAP earnings Profit figures a company reports that exclude some items GAAP requires, such as stock compensation; useful but easy to flatter.
- SEC filings explained: 10-K, 10-Q, 8-K, proxy, 13F and more A map of the SEC forms investors meet, the filing deadlines by filer status, and how to search EDGAR and its XBRL data, using Apple’s real filing calendar.
- What is fundamental analysis? A beginner’s guide with Apple How fundamental analysis works: the business, the statements, the ratios and the valuation, worked through Apple’s fiscal 2025 10-K with real numbers.
Educational content, not investment advice. Finabase Learn explains how markets and tools work. It does not recommend any security or strategy, and examples are for illustration only. Investing involves risk, including the loss of principal. Rules and figures are for the United States unless stated and can change — check the cited source before you act.