| 2026 |
| 09/18 | 1,085 | 1,097 | 1,085 | 1,092 | +0.65% | 64,000 | - | +1.58% |
| 09/17 | 1,067 | 1,086 | 1,066 | 1,085 | +1.31% | 36,000 | - | +0.93% |
| 09/16 | 1,075 | 1,082 | 1,071 | 1,071 | -0.56% | 43,700 | - | -0.19% |
| 09/15 | (IR情報)15:30 当社グループの従業員による不正行為に関するお詫びとお知らせ |
| 09/15 | (IR情報)15:30 組織変更および人事異動に関するお知らせ |
| 09/15 | (IR情報)15:30 当社子会社の人事異動に関するお知らせ |
| 09/15 | 1,075 | 1,085 | 1,072 | 1,077 | +0.37% | 33,500 | - | +0.47% |
| 09/14 | (自社株買い)取締役会(2026年4月30日)での決議状況(取得期間2026年5月1日~2026年10月30日) |
| 09/14 | 1,050 | 1,074 | 1,050 | 1,073 | +2.09% | 39,300 | - | +0.19% |
| 09/11 | 1,046 | 1,058 | 1,033 | 1,051 | +1.25% | 58,800 | - | -1.68% |
| 09/10 | 1,031 | 1,042 | 1,030 | 1,038 | -0.19% | 32,100 | - | -2.72% |
| 09/09 | 1,049 | 1,049 | 1,040 | 1,040 | -0.67% | 42,700 | - | -2.44% |
| 09/08 | 1,050 | 1,053 | 1,044 | 1,047 | -1.13% | 47,000 | - | -1.69% |
| 09/07 | (5%ルール)アセットマネジメントOne(1.08%)みずほ信託銀行(4.25%) |
| 09/07 | 1,084 | 1,087 | 1,056 | 1,059 | -2.04% | 45,100 | - | -0.56% |
| 09/04 | 1,076 | 1,086 | 1,071 | 1,081 | +0.46% | 45,400 | - | +1.69% |
| 09/03 | 1,077 | 1,083 | 1,068 | 1,076 | 0% | 37,200 | - | +0.94% |
| 09/02 | 1,090 | 1,090 | 1,072 | 1,076 | -2.09% | 64,000 | - | +0.65% |
| 09/01 | (IR情報)11:30 自己株式の取得状況に関するお知らせ(会社法第165条第2項の規定による定款の定めに基づく自己株式の取得) |
| 09/01 | 1,090 | 1,108 | 1,090 | 1,099 | +0.09% | 73,500 | - | +2.61% |
| 08/31 | 1,091 | 1,098 | 1,077 | 1,098 | +0.27% | 47,500 | - | +2.43% |
| 08/28 | 1,072 | 1,098 | 1,072 | 1,095 | +1.39% | 51,400 | - | +2.05% |
| 08/27 | (IR情報)11:00 インフォメーション・ディベロプメント、「AIガバナンスコンサルティング」、「ISO/IEC 42001認証取得支援」サービスの提供を開始 |
| 08/27 | 1,080 | 1,087 | 1,071 | 1,080 | -0.83% | 38,000 | - | +0.65% |
| 08/26 | 1,100 | 1,105 | 1,085 | 1,089 | 0% | 66,400 | - | +1.4% |
| 08/25 | 1,085 | 1,098 | 1,084 | 1,089 | +0.83% | 55,700 | - | +1.3% |
| 08/24 | 1,070 | 1,086 | 1,070 | 1,080 | +0.37% | 52,000 | - | +0.37% |
| 08/21 | 1,075 | 1,082 | 1,070 | 1,076 | -0.28% | 41,700 | - | -0.09% |
| 08/20 | 1,072 | 1,082 | 1,069 | 1,079 | +0.47% | 49,600 | - | 0% |
| 08/19 | 1,087 | 1,087 | 1,067 | 1,074 | -0.92% | 39,800 | - | -0.65% |
| 08/18 | 1,077 | 1,089 | 1,067 | 1,084 | +1.03% | 48,500 | - | +0.18% |
| 08/17 | 1,068 | 1,087 | 1,060 | 1,073 | -0.65% | 85,000 | - | -0.92% |
| 08/14 | (自社株買い)取締役会(2026年4月30日)での決議状況(取得期間2026年5月1日~2026年10月30日) |
| 08/14 | 1,044 | 1,080 | 1,042 | 1,080 | +3.45% | 109,700 | - | -0.37% |
| 08/13 | 1,042 | 1,049 | 1,035 | 1,044 | -0.1% | 55,200 | - | -3.78% |
| 08/12 | (IR情報)15:00 IDホールディングス、日本初となるISO/IEC 42001およびISO56001の両認証取得企業に |
| 08/12 | 1,045 | 1,050 | 1,035 | 1,045 | +0.77% | 59,100 | - | -3.78% |
| 08/10 | 1,031 | 1,038 | 1,030 | 1,037 | +0.78% | 43,600 | - | -4.6% |
| 08/07 | (IR情報)11:30 2027年3月期第1四半期決算説明資料 |
| 08/07 | (IR情報)11:00 インフォメーション・ディベロプメント、医療機関向けAIマスキングツール「ID-AI Masky」の提供を開始 |
| 08/07 | 1,023 | 1,032 | 1,022 | 1,029 | +1.08% | 38,800 | - | -5.51% |
| 08/06 | 1,010 | 1,020 | 1,008 | 1,018 | +0.69% | 46,700 | - | -6.61% |
| 08/05 | 1,010 | 1,019 | 1,007 | 1,011 | +0.4% | 60,300 | - | -7.42% |
| 08/04 | 1,029 | 1,031 | 1,007 | 1,007 | -2.61% | 96,600 | - | -7.95% |
| 08/03 | (IR情報)11:30 自己株式の取得状況に関するお知らせ(会社法第165条第2項の規定による定款の定めに基づく自己株式の取得) |
| 08/03 | 1,001 | 1,040 | 1,000 | 1,034 | +1.17% | 160,700 | - | -5.74% |
| 07/31 | (IR情報)11:30 臨時株主総会招集のための基準日設定に関するお知らせ |
| 07/31 | (IR情報)11:30 完全子会社(株式会社インフォメーション・ディベロプメント)の吸収合併、商号の変更および定款の一部変更に関するお知らせ |
| 07/31 | (IR情報)11:30 2027年3月期第1四半期決算短信〔日本基準〕(連結) |
| 07/31 | 1,159 | 1,159 | 999 | 1,022 | -10.98% | 242,800 | - | -6.92% |
| 07/30 | 1,154 | 1,161 | 1,142 | 1,148 | -0.69% | 76,000 | - | +4.46% |
| 07/29 | 1,136 | 1,160 | 1,133 | 1,156 | +2.21% | 75,800 | - | +5.67% |
| 07/28 | 1,134 | 1,136 | 1,121 | 1,131 | +0.27% | 36,200 | - | +3.76% |
| 07/27 | 1,114 | 1,128 | 1,114 | 1,128 | +1.71% | 81,900 | - | +3.77% |
| 07/24 | 1,095 | 1,109 | 1,087 | 1,109 | +0.27% | 46,300 | - | +2.31% |
| 07/23 | 1,104 | 1,109 | 1,091 | 1,106 | +0.18% | 46,900 | - | +2.22% |
| 07/22 | 1,107 | 1,107 | 1,090 | 1,104 | -0.27% | 43,200 | - | +2.03% |
| 07/21 | 1,125 | 1,143 | 1,104 | 1,107 | -0.72% | 62,800 | - | +2.31% |
| 07/17 | 1,115 | 1,129 | 1,110 | 1,115 | -0.36% | 54,000 | - | +3.24% |
| 07/16 | 1,127 | 1,134 | 1,117 | 1,119 | -0.71% | 66,400 | - | +3.8% |
| 07/15 | (自社株買い)取締役会(2026年4月30日)での決議状況(取得期間2026年5月1日~2026年10月30日) |
| 07/15 | 1,114 | 1,130 | 1,114 | 1,127 | +1.62% | 78,100 | - | +4.74% |
| 07/14 | (IR情報)16:00 自己株式の取得状況に関するお知らせ(会社法第165条第2項の規定による定款の定めに基づく自己株式の取得) |
| 07/14 | 1,111 | 1,121 | 1,105 | 1,109 | +0.27% | 57,500 | - | +3.26% |
| 07/13 | 1,100 | 1,110 | 1,099 | 1,106 | -0.09% | 38,000 | - | +3.27% |
| 07/10 | 1,099 | 1,113 | 1,095 | 1,107 | +1.47% | 62,700 | - | +3.65% |
| 07/09 | 1,093 | 1,106 | 1,089 | 1,091 | -1.09% | 48,000 | - | +2.54% |
| 07/08 | 1,085 | 1,108 | 1,081 | 1,103 | +1.19% | 99,100 | - | +4.06% |
| 07/07 | 1,078 | 1,105 | 1,078 | 1,090 | +1.87% | 61,100 | - | +3.22% |
| 07/06 | 1,072 | 1,078 | 1,064 | 1,070 | -0.37% | 56,200 | - | +1.61% |
| 07/03 | 1,072 | 1,080 | 1,062 | 1,074 | +1.23% | 33,600 | - | +2.19% |
| 07/02 | 1,057 | 1,085 | 1,057 | 1,061 | +0.57% | 42,200 | - | +1.05% |
| 07/01 | 1,072 | 1,073 | 1,051 | 1,055 | -1.49% | 34,800 | - | +0.67% |
| 06/30 | 1,070 | 1,080 | 1,058 | 1,071 | +0.09% | 44,900 | - | +2.39% |
| 06/29 | 1,064 | 1,083 | 1,059 | 1,070 | +1.04% | 63,300 | - | +2.49% |
| 06/26 | (IR情報)11:00 インフォメーション・ディベロプメント、Datadogの公認パートナーに認定 システムの安定稼働と価値創出に貢献 |
| 06/26 | 1,050 | 1,063 | 1,044 | 1,059 | +0.86% | 59,000 | - | +1.63% |
| 06/25 | 1,044 | 1,054 | 1,030 | 1,050 | +1.25% | 41,800 | - | +0.77% |
| 06/24 | 1,055 | 1,066 | 1,037 | 1,037 | -0.67% | 54,100 | - | -0.48% |
| 06/23 | 1,047 | 1,052 | 1,039 | 1,044 | -1.23% | 49,900 | - | +0.19% |
| 06/22 | 1,054 | 1,071 | 1,050 | 1,057 | +0.09% | 55,000 | - | +1.44% |
| 06/19 | 1,071 | 1,072 | 1,042 | 1,056 | -1.12% | 58,800 | - | +1.44% |
| 06/18 | 1,090 | 1,101 | 1,064 | 1,068 | -2.2% | 63,500 | - | +2.69% |
| 06/17 | 1,112 | 1,134 | 1,091 | 1,092 | -1.62% | 132,900 | - | +5.3% |
| 06/16 | 1,080 | 1,110 | 1,068 | 1,110 | +4.03% | 140,900 | - | +7.14% |
| 06/15 | (IR情報)13:30 中期経営計画の修正に関するお知らせ |
| 06/15 | (自社株買い)取締役会(2026年4月30日)での決議状況(取得期間2026年5月1日~2026年10月30日) |
| 06/15 | 1,062 | 1,082 | 1,061 | 1,067 | +0.66% | 114,400 | - | +3.09% |
| 06/12 | 1,045 | 1,063 | 1,035 | 1,060 | +0.09% | 99,900 | - | +2.42% |
| 06/11 | 1,097 | 1,098 | 1,054 | 1,059 | -2.31% | 99,800 | - | +2.52% |
| 06/10 | 1,042 | 1,089 | 1,042 | 1,084 | +4.53% | 150,800 | - | +5.04% |
| 06/09 | 1,031 | 1,037 | 1,012 | 1,037 | +1.47% | 70,900 | - | +0.68% |
| 06/08 | 995 | 1,024 | 995 | 1,022 | +1.89% | 112,200 | - | -0.68% |
| 06/05 | 998 | 1,012 | 998 | 1,003 | +1.42% | 34,600 | - | -2.05% |
| 06/04 | 992 | 1,000 | 981 | 989 | -1.49% | 72,000 | - | -3.04% |
| 06/03 | 1,024 | 1,024 | 990 | 1,004 | -1.95% | 83,300 | - | -1.18% |
| 06/02 | 1,028 | 1,032 | 1,015 | 1,024 | -0.97% | 44,400 | - | +1.29% |
| 06/01 | 1,041 | 1,053 | 1,033 | 1,034 | -0.29% | 61,900 | - | +2.68% |
| 05/29 | 1,032 | 1,053 | 1,020 | 1,037 | +1.67% | 88,700 | - | +3.49% |
| 05/28 | 1,008 | 1,028 | 1,001 | 1,020 | +1.9% | 94,800 | - | +2.2% |
| 05/27 | 1,015 | 1,015 | 996 | 1,001 | -1.38% | 73,600 | - | +0.7% |
| 05/26 | 1,026 | 1,029 | 1,014 | 1,015 | -1.74% | 72,000 | - | +2.32% |
| 05/25 | 1,049 | 1,049 | 1,019 | 1,033 | -1.15% | 68,200 | - | +4.55% |
| 05/22 | (IR情報)14:00 2026年3月期決算説明資料 |
| 05/22 | 1,043 | 1,046 | 1,033 | 1,045 | -0.38% | 45,100 | - | +6.2% |
| 05/21 | 1,046 | 1,058 | 1,045 | 1,049 | +1.16% | 63,800 | - | +7.26% |
| 05/20 | 1,047 | 1,055 | 1,022 | 1,037 | -1.43% | 87,500 | - | +6.47% |
| 05/19 | 1,017 | 1,053 | 1,017 | 1,052 | +3.54% | 106,000 | - | +8.45% |
| 05/18 | 1,036 | 1,038 | 1,016 | 1,016 | -1.45% | 89,600 | - | +5.18% |
| 05/15 | 1,018 | 1,035 | 1,018 | 1,031 | +1.58% | 79,800 | - | +7.06% |
| 05/14 | (自社株買い)取締役会(2026年4月30日)での決議状況(取得期間2026年5月1日~2026年10月30日) |
| 05/14 | (IR情報)11:30 IDHD代表取締役社長 舩越真樹が藍綬褒章受章にともなう褒章伝達式に出席および天皇陛下に拝謁 |
| 05/14 | 1,065 | 1,067 | 1,007 | 1,015 | -4.78% | 131,900 | - | +5.84% |
| 05/13 | 1,075 | 1,076 | 1,060 | 1,066 | -0.56% | 144,400 | - | +11.39% |
| 05/12 | 1,074 | 1,076 | 1,066 | 1,072 | +0.09% | 82,000 | - | +12.61% |
| 05/11 | 1,058 | 1,074 | 1,044 | 1,071 | +5.31% | 173,800 | - | +13.09% |
| 05/08 | 1,035 | 1,035 | 1,015 | 1,017 | -1.74% | 89,000 | - | +7.96% |
| 05/07 | 1,040 | 1,055 | 1,035 | 1,035 | +0.39% | 131,300 | - | +10.22% |
| 05/01 | 1,024 | 1,069 | 1,006 | 1,031 | +2.59% | 409,100 | - | +10.27% |
| 04/30 | (IR情報)13:30 当社取締役会の実効性に関する評価結果の概要 |
| 04/30 | (IR情報)13:30 自己株式の取得に係る事項の決定に関するお知らせ(会社法第165条第2項の規定による定款の定めに基づく自己株式の取得) |
| 04/30 | (IR情報)13:30 2026年3月期決算短信〔日本基準〕(連結) |
| 04/30 | (IR情報)13:30 IDホールディングス代表取締役社長 舩越真樹が藍綬褒章を受章 |
| 04/30 | (IR情報)13:30 英国規格協会(BSI)によるISO56001登録証授与式実施のお知らせ |
| 04/30 | (IR情報)13:30 当社および当社子会社の人事異動に関するお知らせ |
| 04/30 | 896 | 1,015 | 885 | 1,005 | +11.42% | 433,600 | - | +7.83% |
| 04/28 | 899 | 902 | 892 | 902 | +0.67% | 73,000 | - | -3.01% |
| 04/27 | 890 | 902 | 883 | 896 | +1.13% | 86,000 | - | -3.76% |
| 04/24 | 896 | 896 | 881 | 886 | -0.67% | 81,000 | - | -4.94% |