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  "domain": "finance",
  "title": "Japan takeover defense and poison pill",
  "entry_type": "wiki_entry",
  "frontmatter": {
    "title": "Japan takeover defense and poison pill",
    "aliases": [
      "japan-takeover-defense-poison-pill",
      "Japan poison pill",
      "Japan advance-warning takeover defense",
      "事前警告型買収防衛策",
      "Bull-Dog Sauce defense"
    ],
    "domain": "finance",
    "type": null,
    "created": "2026-05-25",
    "last_updated": "2026-07-29",
    "last_tended": "2026-07-29",
    "review_by": "2027-01-29",
    "confidence": "likely",
    "tags": [
      "finance",
      "M&A",
      "takeover-defense",
      "poison-pill",
      "TOB",
      "Bull-Dog-Sauce",
      "METI",
      "FIEA",
      "governance"
    ],
    "status": "active",
    "canonical_anchor": null,
    "related": [],
    "note": null,
    "sources": [
      "https://www.meti.go.jp/policy/economy/keiei_innovation/keizaihousei/fair-ma-rule/ma-guideline-publications.html",
      "https://www.meti.go.jp/english/press/2023/0831_001.html",
      "https://www.courts.go.jp/hanrei/search2/index.html",
      "https://www.jpx.co.jp/english/equities/listing/code-of-conduct/index.html"
    ]
  },
  "summary": "Japan takeover defense is a set of possible issuer responses that may interact with the FIEA tender-offer process, the Companies Act, listing rules, and judicial review. A company may have a disclosed advance-warning response policy or may evaluate an event-specific response, but no mechanism or out",
  "headings": [
    "Japan takeover defense and poison pill",
    "Overview",
    "Defense taxonomy",
    "Bull-Dog Sauce 2007 — the foundational case",
    "METI 2023 Guidelines for Corporate Takeovers",
    "Primary public records",
    "Pre-bid vs in-bid response decision",
    "What to extract from a defense filing",
    "Research checklist",
    "Related"
  ],
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