Every Japanese disclosure, structured for your AI agent.

Catch every activist accumulation, M&A move, buyback program, and material event the day it posts. All 3,863 listed Japanese companies, eight years of filings, native to Claude, Cursor, ChatGPT, and Claude Code via MCP.

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japan-finsight
Claude Desktop
Connected to edinet-tools-mcp · 16 tools available
Show me Japanese companies where activists have filed 5%+ positions in the past 12 months, with each activist's stated demands.
get_holding_actions()
Japan Finsight
Recent activist filings, with intent extracted from filing text:
  • 3865 Hokuetsu · Oasis Management 14.1% · "board restructuring + payout review"
  • 2168 Pasona · Oasis Management 5.5% · "governance reform proposals for AGM 2026"
  • 7222 Nissan Shatai · Strategic Capital 11.5% · "parent-subsidiary unwind"
12 matches · sourced from 47 EDINET filings
Tell me more about Hokuetsu. What specifically is Oasis asking for?
get_holding_actions("3865")
Japan Finsight
Oasis's stated demands, extracted from their March 2026 5%+ filing:
  • Add 3+ outside directors to the board
  • Return excess cash via dividend + buyback
  • Unwind cross-shareholdings in listed Japanese peers
Sourced from EDINET large-shareholding filing · March 2026
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↑
3,863
Listed Japanese companies (TSE Prime, Standard, Growth)
415K+
Regulatory filings ingested from FSA EDINET
20+
Specialized AI tools for activist, capital policy, ownership, events
100%
Source-traceable to primary filings
What's inside

The English-language data layer for Japanese corporate disclosure.

3,863 listed companies. Eight years of filings. Facts pulled from the text with source quotes.

Coverage

Every type of EDINET disclosure. 418,669 filings since January 2018, across 10,000+ companies. IFRS and J-GAAP.

  • Annual securities reports Audited financials, every listed company.
  • 5%+ shareholder filings Every activist accumulation, the day it files.
  • Holding change reports Every 1%+ position change.
  • Quarterly reports Eight years, through the FSA reform.
  • Semi-annual reports Half-year results.
  • Extraordinary reports M&A, restructurings, governance shifts.
  • Treasury-stock acquisitions Buyback authorization to execution.
  • Tender offers Full M&A lifecycle, announcement to outcome.
  • Shelf registrations Issuance plans before the issuance.
  • Issuance notifications Equity and bond issuance.
  • Internal-control reports J-SOX status.
  • Parent-company reports Parent-subsidiary structure.
What we extract

Facts pulled from the filing text, with source quotes.

Activist intent Why each filer holds, what changes they're pushing, what outcomes they want. 3,814 filings flagged via a curated Japan activist registry.
Capital policy Stated payout targets and dividend-skip reasons. 31,159 reports covered.
Material events Tagged into 24 FSA categories: M&A, capital returns, management changes, governance shifts, legal actions. 29,015 events tagged.
Related-party transactions Counterparty, type, amount, terms. Source quote per item.
Cross-shareholdings 5%+ holders, plus smaller structural holdings from annual reports.
Ownership timelines Who entered, who increased, who exited, when, with stakes.
Sources

Numbers parsed straight from XBRL. Every value traceable to its filing.

  • XBRL-first Financials come from the FSA's structured filing format — not OCR, not LLM. Type-safe at the schema layer.
  • EDINET Japan's Financial Services Agency runs the disclosure system. We pull directly.
  • edinet-tools Open-source library, MIT, on PyPI & GitHub. Same parsers we run in production.
  • LLM extraction Reserved for narrative facts (activist intent, capital policy, related-party transactions), with a source quote on every value.
  • 786 tests On the library. Public commit history.
  • Daily refresh New filings ingested the day they post. Eight years of history.

Recent updates →

Foundation

An open-source library at the core.

Built on edinet-tools, the open-source EDINET library. MIT, public on PyPI and GitHub. Same parsers in production.

On top: activist intent, payout policies, tagged material events, daily refresh, the cross-shareholding network.

By Matt Helmer. Formerly UBS Tokyo, maintainer of edinet-tools.

Japan Finsight is an independent product. Not affiliated with the Financial Services Agency, EDINET, or any disclosed company.

edinet-tools Open-source library for EDINET · MIT · public on PyPI & GitHub EDINET Japan's official corporate disclosure system · run by the Financial Services Agency
Comparison

Minutes, not weeks.

  Typical setup Japan Finsight
What you cover Annual reports, downloaded by hand ✓19 EDINET filing types live, daily-refreshed
In English Translate it yourself, or machine-translate ✓English, structured for AI agents
AI / MCP access Build the wrapper yourself ✓Claude · ChatGPT · Cursor · Claude Code
Activist signals Not extracted ✓3,814 filings flagged, with source quotes
Capital policy & events Raw text, parse it yourself ✓Payout targets, M&A, buybacks, RPTs — with quotes
Auditable Aggregated, hard to verify ✓Every value links to its filing
Time to first answer Weeks of data engineering ✓Minutes via MCP
What it costs you A part-time engineer ✓$99/mo
Pricing

Full access.

$99/mo
or $990/yr
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Every subscription includes
  • MCP server access Use Japan Finsight from inside Claude, Cursor, ChatGPT, or Claude Code. No SDK, no API wiring.
  • 3,863 listed Japanese companies Every TSE Prime, Standard, and Growth name. Eight years of filings back.
  • XBRL-parsed financials Numbers come straight from the FSA's structured format. Type-safe at the schema layer.
  • Activist intent extraction Why each filer holds and what they're pushing. 3,814 filings flagged, with source quotes.
  • Material events, classified M&A, capital returns, governance shifts — tagged into 24 FSA categories.
  • Every value source-linked Trace any number back to its original filing. Audit anything.
  • Daily refresh New filings ingested the day they post on EDINET.
  • Personal founder onboarding Setup email within 24 hours of subscribing.