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Add FilingFirehose (SEC EDGAR + body-text-classified 8-Ks) to Data Sources#56

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Add FilingFirehose (SEC EDGAR + body-text-classified 8-Ks) to Data Sources#56
jaablon wants to merge 1 commit into
paperswithbacktest:mainfrom
jaablon:main

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@jaablon

@jaablon jaablon commented May 15, 2026

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Adds FilingFirehose, an SEC EDGAR JSON API I built that parses 8-K body text and flags items the filer didn't report (7.3% of recent Item 8.01 filings have buried 1.05/5.02/etc events). Tags 21+ activist filers on every Schedule 13D/G; detects ATM offerings on S-3/424B5.

For systematic traders: free public tier (no auth, last 72h), paid tier from $29/mo for full historical archive + webhooks. Available as REST API, MCP server (Claude Desktop / Cursor / Windsurf), Python SDK, GitHub Action, and ChatGPT GPT.

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