FilingSiren Turns SEC Filings Into Phrase-Level Alarms

Field notes

The service is organized around saved literal phrases rather than a general query language, with optional filtering by SEC form type. Its stated pipeline polls EDGAR every 60 seconds across a rolling three-day window, then attaches the filing link to an email, Telegram message, or webhook. FilingSiren also says amended or re-indexed copies will not trigger duplicate alerts because it keys on the filing’s accession number. The homepage currently presents four enabled watchlists and paid tiers that are still opening through a waitlist.