{
  "spec_version": "5",
  "endpoint": "ceo-person",
  "stock_code": "4512",
  "company_name": "わかもと製薬",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/4512/executives/ceo/igarashi-arata/",
  "api_url": "/api/4512/ceo/igarashi-arata.json",
  "updated": "2026-10-26",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/4512/executives/ceo/igarashi-arata/",
  "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": "igarashi-arata",
    "name": "五十嵐新",
    "kana": "いがらし　あらた",
    "surname": "五十嵐",
    "given_name": "新",
    "hometown": null,
    "education": null,
    "prev_role": null,
    "career": [
      {
        "company": "日本興業銀行（現 みずほフィナンシャルグループ）",
        "from": "1981-04",
        "to": null,
        "roles": [
          {
            "date": "1981-04",
            "role": "入行",
            "event": "入行"
          },
          {
            "date": "2008-04",
            "role": "営業第14部長",
            "dept": "営業第14部長"
          }
        ]
      },
      {
        "company": "みずほコーポレート銀行",
        "from": "2005-04",
        "to": null,
        "roles": [
          {
            "date": "2005-04",
            "role": "クレジットエンジニアリング部長",
            "dept": "クレジットエンジニアリング部長"
          }
        ]
      },
      {
        "company": "わかもと製薬",
        "from": "2010-05",
        "to": null,
        "roles": [
          {
            "date": "2010-05",
            "role": "入社（理事）",
            "event": "入社"
          },
          {
            "date": "2010-07",
            "role": "総務・広報部長",
            "dept": "総務・広報部長"
          },
          {
            "date": "2011-04",
            "role": "経営企画室長兼総務部長",
            "dept": "経営企画室長兼総務部長"
          },
          {
            "date": "2011-06",
            "role": "取締役 経営企画室長兼総務部長",
            "board": "取締役",
            "dept": "経営企画室長兼総務部長"
          },
          {
            "date": "2012-06",
            "role": "常務取締役 経営企画室長兼総務部長",
            "board": "取締役",
            "title": "常務",
            "dept": "経営企画室長兼総務部長"
          },
          {
            "date": "2014-04",
            "role": "常務取締役 経営企画室長",
            "board": "取締役",
            "title": "常務",
            "dept": "経営企画室長"
          },
          {
            "date": "2017-10",
            "role": "常務取締役 経営企画室長兼経理部長",
            "board": "取締役",
            "title": "常務",
            "dept": "経営企画室長兼経理部長"
          },
          {
            "date": "2018-04",
            "role": "常務取締役 経理部長",
            "board": "取締役",
            "title": "常務",
            "dept": "経理部長"
          },
          {
            "date": "2018-06",
            "role": "常務取締役 管理本部長",
            "board": "取締役",
            "title": "常務",
            "dept": "管理本部長"
          },
          {
            "date": "2019-06",
            "role": "専務取締役 管理本部長",
            "board": "取締役",
            "title": "専務",
            "dept": "管理本部長"
          },
          {
            "date": "2022-04",
            "role": "代表取締役社長",
            "board": "代表取締役",
            "title": "社長",
            "is_ceo_appointed": true
          },
          {
            "date": "2026-04",
            "role": "取締役会長",
            "board": "取締役",
            "title": "会長"
          }
        ]
      }
    ],
    "references": [
      {
        "source": "わかもと製薬 定時株主総会招集通知（2026年5月・取締役候補者のふりがな）",
        "url": null,
        "for": [
          "kana"
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/4512/executives/ceo/igarashi-arata/",
    "term_start": "2022-04",
    "term_end": "2026-04",
    "api_url": "https://the-shashi.com/api/4512/ceo/igarashi-arata.json",
    "list_api_url": "https://the-shashi.com/api/4512/ceo.json",
    "predecessor": {
      "slug": "小島範久",
      "name": "小島範久",
      "api_url": "https://the-shashi.com/api/4512/ceo/小島範久.json"
    },
    "successor": {
      "slug": "hirai-yuko",
      "name": "平井友行",
      "api_url": "https://the-shashi.com/api/4512/ceo/hirai-yuko.json"
    }
  }
}