{
  "spec_version": "5",
  "endpoint": "ceo-person",
  "stock_code": "8095",
  "company_name": "アステナホールディングス",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/8095/executives/ceo/iwaki-keitaro/",
  "api_url": "/api/8095/ceo/iwaki-keitaro.json",
  "updated": "2026-10-26",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/8095/executives/ceo/iwaki-keitaro/",
  "source": {
    "person": {
      "primary": [
        "有価証券報告書（役員の状況）"
      ],
      "extraction": "EDINET の XBRL から機械抽出した役員表を土台に、雑誌記事・社史・報道で経歴と出自を補完",
      "caveat": "在任区間は career の is_ceo_appointed が正本。退任年月は次の代の就任年月から決まる"
    }
  },
  "person": {
    "slug": "iwaki-keitaro",
    "name": "岩城慶太郎",
    "kana": "いわき　けいたろう",
    "surname": "岩城",
    "given_name": "慶太郎",
    "hometown": null,
    "education": null,
    "prev_role": null,
    "career": [
      {
        "company": "アクセンチュア株式会社",
        "from": "2002-05",
        "to": null,
        "roles": [
          {
            "date": "2002-05",
            "role": "入社",
            "event": "入社"
          }
        ]
      },
      {
        "company": "アステナ",
        "from": "2005-04",
        "to": null,
        "roles": [
          {
            "date": "2005-04",
            "role": "入社",
            "event": "入社"
          },
          {
            "date": "2007-02",
            "role": "アステナ取締役医薬品部門長",
            "board": "取締役",
            "dept": "医薬品部門長"
          },
          {
            "date": "2009-02",
            "role": "アステナ取締役",
            "board": "取締役"
          },
          {
            "date": "2017-02",
            "role": "代表取締役社長食品事業部長",
            "board": "代表取締役",
            "title": "社長",
            "dept": "食品事業部長",
            "is_ceo_appointed": true
          }
        ]
      },
      {
        "company": "メルテックス株式会社",
        "from": "2009-03",
        "to": null,
        "roles": [
          {
            "date": "2009-03",
            "role": "副社長",
            "title": "副社長"
          },
          {
            "date": "2009-08",
            "role": "代表取締役社長",
            "board": "代表取締役",
            "title": "社長"
          },
          {
            "date": "2015-02",
            "role": "取締役会長",
            "board": "取締役",
            "title": "会長"
          },
          {
            "date": "2015-02",
            "role": "アステナ取締役副社長"
          },
          {
            "date": "2015-12",
            "role": "アステナ取締役副社長食品事業部長 兼務管理本部長"
          },
          {
            "date": "2016-02",
            "role": "アステナ代表取締役副社長食品事業部長"
          }
        ]
      },
      {
        "company": "太陽ホールディングス株式会社",
        "from": "2016-06",
        "to": null,
        "roles": [
          {
            "date": "2016-06",
            "role": "社外取締役",
            "board": "社外取締役"
          }
        ]
      },
      {
        "company": "岩城製薬株式会社",
        "from": "2017-01",
        "to": null,
        "roles": [
          {
            "date": "2017-01",
            "role": "取締役会長（現任）",
            "board": "取締役",
            "title": "会長",
            "current": true
          },
          {
            "date": "2017-02",
            "role": "アステナ代表取締役社長食品事業部長"
          },
          {
            "date": "2017-12",
            "role": "アステナ代表取締役社長管理本部長"
          },
          {
            "date": "2020-02",
            "role": "アステナ代表取締役社長"
          },
          {
            "date": "2021-02",
            "role": "アステナ代表取締役社長CEO"
          },
          {
            "date": "2022-01",
            "role": "アステナ代表取締役社長"
          },
          {
            "date": "2022-02",
            "role": "アステナ代表取締役社長 事業戦略・財務担当"
          }
        ]
      },
      {
        "company": "スペラファーマ株式会社",
        "from": "2022-04",
        "to": null,
        "roles": [
          {
            "date": "2022-04",
            "role": "取締役会長",
            "board": "取締役",
            "title": "会長"
          }
        ]
      },
      {
        "company": "アステナミネルヴァ株式会社",
        "from": "2022-05",
        "to": null,
        "roles": [
          {
            "date": "2022-05",
            "role": "代表取締役会長",
            "board": "代表取締役",
            "title": "会長"
          }
        ]
      },
      {
        "company": "スペラファーマ株式会社",
        "from": "2022-10",
        "to": null,
        "roles": [
          {
            "date": "2022-10",
            "role": "代表取締役社長（現任）",
            "board": "代表取締役",
            "title": "社長",
            "current": true
          }
        ]
      },
      {
        "company": "スペラネクサス株式会社",
        "from": "2022-12",
        "to": null,
        "roles": [
          {
            "date": "2022-12",
            "role": "取締役",
            "board": "取締役"
          }
        ]
      },
      {
        "company": "岩城製薬佐倉工場株式会社",
        "from": "2023-01",
        "to": null,
        "roles": [
          {
            "date": "2023-01",
            "role": "取締役会長",
            "board": "取締役",
            "title": "会長"
          },
          {
            "date": "2023-02",
            "role": "代表取締役会長",
            "board": "代表取締役",
            "title": "会長"
          },
          {
            "date": "2023-02",
            "role": "アステナ代表取締役社長 事業戦略・財務担当 兼務 医薬事業担当"
          },
          {
            "date": "2023-12",
            "role": "会長（現任）",
            "title": "会長",
            "current": true
          }
        ]
      },
      {
        "company": "アステナミネルヴァ株式会社",
        "from": "2023-12",
        "to": null,
        "roles": [
          {
            "date": "2023-12",
            "role": "取締役会長",
            "board": "取締役",
            "title": "会長"
          },
          {
            "date": "2024-01",
            "role": "能登半島地震避難者受入基金理事（現任）"
          },
          {
            "date": "2024-02",
            "role": "アステナ取締役 ファインケミカル事業担当 兼 医薬事業担当"
          },
          {
            "date": "2024-02",
            "role": "一般社団法人能登乃國百年之計副理事長（現任）"
          },
          {
            "date": "2024-04",
            "role": "一般社団法人notoイマジン理事（現任）"
          },
          {
            "date": "2024-06",
            "role": "公益財団法人岩城留学生奨学会理事長（現任）"
          },
          {
            "date": "2025-02",
            "role": "アステナ取締役ＦＣ・医薬事業構造改革、新規事業担当（現任）"
          }
        ]
      },
      {
        "company": "スペラネクサス株式会社",
        "from": "2025-07",
        "to": null,
        "roles": [
          {
            "date": "2025-07",
            "role": "代表取締役社長（現任）",
            "board": "代表取締役",
            "title": "社長",
            "current": true
          }
        ]
      }
    ],
    "references": [
      {
        "source": "アステナホールディングス 定時株主総会招集通知（2026年2月・取締役候補者のふりがな）",
        "url": null,
        "for": [
          "kana"
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/8095/executives/ceo/iwaki-keitaro/",
    "term_start": "2017-02",
    "term_end": "2024-02",
    "api_url": "https://the-shashi.com/api/8095/ceo/iwaki-keitaro.json",
    "list_api_url": "https://the-shashi.com/api/8095/ceo.json",
    "predecessor": null,
    "successor": {
      "slug": "setoguchi-satoshi",
      "name": "瀬戸口智",
      "api_url": "https://the-shashi.com/api/8095/ceo/setoguchi-satoshi.json"
    }
  }
}