Schedule 13D / 13G Deadline Calculator
Browser-only Schedule 13D and 13G deadline worksheet with memo and CSV export.
Schedule 13D / 13G Deadline Calculator is a small local-first web tool for planning common beneficial ownership reporting deadline scenarios. Pick a 13D or 13G trigger pattern, enter the relevant trigger/month-end/quarter-end date, add optional SEC closure dates, then copy a planning memo or CSV row.
I built it because these deadline windows are easy to lose inside filing checklists, holiday calendars, and spreadsheet notes. The tool is deliberately just the worksheet: no signup, no cookies, no analytics, no beacons, no external scripts, no uploads, and no browser storage. It links to SEC source materials and does not provide legal advice, securities advice, or EDGAR filing services.
Never miss a SEC filing deadline again with this nifty browser-only deadline calculator that keeps your Schedule 13D and 13G filings on point—no signup, no tracking, just pure deadline magic!
Key features:
- 🔥 Calculates initial and amendment deadlines for Schedule 13D and 13G
- ⚡ Runs entirely in-browser with zero tracking or storage
- 🎯 Exports handy memos and CSVs for easy record-keeping
This summary was generated by GitHub Copilot based on the project README.