VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Thursday, November 20, 2025

Tool Comparison

InsideArbitrage vs SEC.gov (EDGAR) comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

InsideArbitrage adds News, Alerts, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Institutional Data, Screeners, Data Visualizations, Portfolio, Watchlist, Blogs, Newsletters, Videos, Playbooks & Case Studies, and PDF Annotation coverage that SEC.gov (EDGAR) skips.

SEC.gov (EDGAR) includes Data APIs, Financials, and Other categories that InsideArbitrage omits.

In depth comparison

InsideArbitrage

insidearbitrage.com

Event‑driven research platform by Asif Suria focused on merger arbitrage, insider transactions, spinoffs, buybacks, activists, and related special situations. Premium includes tools like the Merger Arbitrage Tool, CVR database, buyback & spinoff trackers, premium screens (IA Score, cluster buys, ‘double dipper’), ‘Deals‑in‑the‑Works’ and deal calendars. IA Professional adds pro‑only features (e.g., CVR outcomes, activist tracker, reverse‑splits tracker, Insider Performance Score) and multi‑seat licensing.

Platforms

Web

Pricing

FreeSubscription

Quick highlights

Merger Arbitrage Tool with announced‑deal lists, spread tracking, calendars and deal updates; ‘Deals in the Works’ and deal post‑mortems.
Insider data hub with ‘Insider Weekends’, cluster buys, buys near highs, flip‑floppers, top‑performing insiders and sector heat‑map.
Buyback suite: daily buyback announcements, searchable buyback history, ‘Buyback Wednesdays’, and ‘Double Dipper’ (insiders + buybacks).
Spinoff suite: upcoming/completed spinoffs and ‘Spinsider’ screen; CVR deals database with outcomes.
Gurus/Institutional holdings pages aggregating 13F/13D/13G and Form 4 into manager dashboards.

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SEC.gov (EDGAR)

sec.gov

Editor’s pick Hands-on review

The official source of U.S. regulatory filings. EDGAR provides free public access through its web portal, JSON data APIs, and structured RSS feeds (updated every 10 minutes). Developers can use the APIs on data.sec.gov for submissions and XBRL datasets, while filers use separate EDGAR Next APIs that require tokens. No email alerting is provided—RSS is the only push channel. Automated access must respect fair-use guidelines, including a descriptive User-Agent.

Platforms

WebAPI

Pricing

Free

Quick highlights

Full-text EDGAR search across filings since 2001, with filters by company, person, form type, and date.
Public data APIs at data.sec.gov provide JSON endpoints for company submissions, XBRL facts, concepts, and frames.
APIs update continuously as filings are made public; nightly bulk ZIPs allow batch ingestion.
Structured RSS feeds for XBRL disclosures update every 10 minutes during filing hours (Mon–Fri, 6am–10pm ET). Email alerts are not offered.
Official downloadable datasets include 13F holdings (as filed), Form D, and Financial Statement Data Sets (both as-filed statements and notes).

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Where they differ

InsideArbitrage

Distinct strengths include:

News Alerts Calendar Acquisitions Spin-offs Buybacks & Authorizations Dividends Splits

Merger Arbitrage Tool with announced‑deal lists, spread tracking, calendars and deal updates; ‘Deals in the Works’ and deal post‑mortems.
Insider data hub with ‘Insider Weekends’, cluster buys, buys near highs, flip‑floppers, top‑performing insiders and sector heat‑map.
Buyback suite: daily buyback announcements, searchable buyback history, ‘Buyback Wednesdays’, and ‘Double Dipper’ (insiders + buybacks).
Spinoff suite: upcoming/completed spinoffs and ‘Spinsider’ screen; CVR deals database with outcomes.

SEC.gov (EDGAR)

Distinct strengths include:

Data APIs Financials Other

Full-text EDGAR search across filings since 2001, with filters by company, person, form type, and date.
Public data APIs at data.sec.gov provide JSON endpoints for company submissions, XBRL facts, concepts, and frames.
APIs update continuously as filings are made public; nightly bulk ZIPs allow batch ingestion.
Structured RSS feeds for XBRL disclosures update every 10 minutes during filing hours (Mon–Fri, 6am–10pm ET). Email alerts are not offered.

Feature-by-feature breakdown

Attribute	InsideArbitrage	SEC.gov (EDGAR)
Categories Which research workflows each platform targets	Shared: Insider Data, 13F, 13D/13G, Regulatory Filings Monitoring Unique: News, Alerts, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Institutional Data, Screeners, Data Visualizations, Portfolio, Watchlist, Blogs, Newsletters, Videos, Playbooks & Case Studies, PDF Annotation	Shared: Insider Data, 13F, 13D/13G, Regulatory Filings Monitoring Unique: Data APIs, Financials, Other
Asset types Supported asset classes and universes	Stocks, ETFs	Stocks, ETFs, Mutual Funds, Closed-End Funds
Experience levels Who each product is built for	Beginner, Intermediate, Advanced	Beginner, Intermediate, Advanced
Platforms Where you can access the product	Web	Web, API
Pricing High-level pricing models	Free, Subscription	Free
Key features Core capabilities called out by each vendor	Unique Merger Arbitrage Tool with announced‑deal lists, spread tracking, calendars and deal updates; ‘Deals in the Works’ and deal post‑mortems. Insider data hub with ‘Insider Weekends’, cluster buys, buys near highs, flip‑floppers, top‑performing insiders and sector heat‑map. Buyback suite: daily buyback announcements, searchable buyback history, ‘Buyback Wednesdays’, and ‘Double Dipper’ (insiders + buybacks). Spinoff suite: upcoming/completed spinoffs and ‘Spinsider’ screen; CVR deals database with outcomes. Gurus/Institutional holdings pages aggregating 13F/13D/13G and Form 4 into manager dashboards. Event‑driven monitor & M&A news feed; earnings calendar; tender‑offers tracker; activist‑campaign tracker; C‑suite transitions tool.	Unique Full-text EDGAR search across filings since 2001, with filters by company, person, form type, and date. Public data APIs at data.sec.gov provide JSON endpoints for company submissions, XBRL facts, concepts, and frames. APIs update continuously as filings are made public; nightly bulk ZIPs allow batch ingestion. Structured RSS feeds for XBRL disclosures update every 10 minutes during filing hours (Mon–Fri, 6am–10pm ET). Email alerts are not offered. Official downloadable datasets include 13F holdings (as filed), Form D, and Financial Statement Data Sets (both as-filed statements and notes). The ‘Latest Filings’ feed shows real-time submissions entering EDGAR.
Tested Verified by hands-on testing inside Find My Moat	Not yet	Yes
Editor pick Featured inside curated shortlists	Standard listing	Highlighted

Frequently Asked Questions

Which workflows do InsideArbitrage and SEC.gov (EDGAR) both support?

Both platforms cover Insider Data, 13F, 13D/13G, and Regulatory Filings Monitoring workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do InsideArbitrage and SEC.gov (EDGAR) require subscriptions?

Both InsideArbitrage and SEC.gov (EDGAR) keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access InsideArbitrage and SEC.gov (EDGAR)?

Both InsideArbitrage and SEC.gov (EDGAR) prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.

What unique strengths set the two platforms apart?

InsideArbitrage differentiates itself with Merger Arbitrage Tool with announced‑deal lists, spread tracking, calendars and deal updates; ‘Deals in the Works’ and deal post‑mortems., Insider data hub with ‘Insider Weekends’, cluster buys, buys near highs, flip‑floppers, top‑performing insiders and sector heat‑map., and Buyback suite: daily buyback announcements, searchable buyback history, ‘Buyback Wednesdays’, and ‘Double Dipper’ (insiders + buybacks)., whereas SEC.gov (EDGAR) stands out for Full-text EDGAR search across filings since 2001, with filters by company, person, form type, and date., Public data APIs at data.sec.gov provide JSON endpoints for company submissions, XBRL facts, concepts, and frames., and APIs update continuously as filings are made public; nightly bulk ZIPs allow batch ingestion..

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Stay on top of related tools

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