| 2025 |
| 11/05 | (IR情報)15:30 当社株式の上場廃止に関するお知らせ |
| 11/05 | 1,441 | 1,451 | 1,441 | 1,441 | -0.62% | 28,900 | 58億4629万 | -0.83% |
| 11/04 | 1,441 | 1,462 | 1,440 | 1,450 | +0.62% | 48,800 | 58億8280万 | -0.21% |
| 10/31 | 1,441 | 1,443 | 1,441 | 1,441 | -0.14% | 4,200 | 58億4629万 | -0.76% |
| 10/30 | 1,441 | 1,443 | 1,441 | 1,443 | +0.14% | 7,500 | 58億5440万 | -0.69% |
| 10/29 | 1,441 | 1,442 | 1,440 | 1,441 | +0.07% | 10,000 | 58億4629万 | -0.83% |
| 10/28 | 1,441 | 1,441 | 1,440 | 1,440 | -0.07% | 2,900 | 58億4223万 | -0.89% |
| 10/27 | (5%ルール)アクセンチュア(0%) |
| 10/27 | 1,441 | 1,443 | 1,438 | 1,441 | +0.07% | 34,000 | 58億4629万 | -0.83% |
| 10/24 | 1,440 | 1,441 | 1,440 | 1,440 | 0% | 18,500 | 58億4223万 | -0.89% |
| 10/23 | 1,440 | 1,440 | 1,440 | 1,440 | 0% | 3,200 | 58億4223万 | -0.96% |
| 10/22 | 1,441 | 1,443 | 1,440 | 1,440 | 0% | 12,100 | 58億4223万 | -0.96% |
| 10/21 | 1,442 | 1,442 | 1,436 | 1,440 | -0.07% | 48,400 | 57億9988万 | -0.96% |
| 10/20 | 1,442 | 1,442 | 1,441 | 1,441 | 0% | 1,900 | 58億391万 | -0.96% |
| 10/17 | 1,442 | 1,443 | 1,441 | 1,441 | +0.14% | 9,600 | 58億391万 | -0.96% |
| 10/16 | 1,438 | 1,445 | 1,438 | 1,439 | +0.14% | 15,800 | 57億9586万 | -1.1% |
| 10/15 | 1,440 | 1,447 | 1,436 | 1,437 | -0.48% | 27,600 | 57億8780万 | -1.24% |
| 10/14 | (IR情報)15:30 特別損失計上のお知らせ |
| 10/14 | (IR情報)15:30 2026年5月期第1四半期決算説明資料 |
| 10/14 | (IR情報)15:30 2026年5月期第1四半期決算短信〔日本基準〕(連結) |
| 10/14 | (IR情報)15:30 アクセンチュア株式会社による当社株券等に係る株式等売渡請求を行うことの決定、当該売渡請求に係る承認及び当社株式の上場廃止に関するお知らせ |
| 10/14 | 1,468 | 1,484 | 1,441 | 1,444 | -1.1% | 15,500 | 58億1599万 | -0.76% |
| 10/10 | 1,484 | 1,595 | 1,460 | 1,460 | -1.62% | 59,400 | 58億8044万 | +0.34% |
| 10/09 | 1,473 | 2,021 | 1,458 | 1,484 | -12.71% | 157,900 | 59億7710万 | +1.99% |
| 10/08 | 1,444 | 1,738 | 1,439 | 1,700 | +18.14% | 48,700 | 68億4709万 | +17% |
| 10/07 | (5%ルール)野村證券(0%)ノムラインターナショナルピーエルシー(NOMURA IN…(0.73%) |
| 10/07 | 1,439 | 1,440 | 1,438 | 1,439 | +0.07% | 1,200 | 57億9586万 | -0.28% |
| 10/06 | (5%ルール)石川聡彦(0%) |
| 10/06 | 1,438 | 1,443 | 1,438 | 1,438 | 0% | 5,300 | 57億9183万 | -0.35% |
| 10/03 | (IR情報)15:30 (開示事項の経過)臨時株主総会の不開催及び基準日の取消しに関するお知らせ |
| 10/03 | 1,438 | 1,442 | 1,438 | 1,438 | 0% | 3,400 | 57億9183万 | -0.35% |
| 10/02 | 1,439 | 1,440 | 1,438 | 1,438 | 0% | 4,700 | 57億9183万 | -0.42% |
| 10/01 | 1,437 | 1,440 | 1,437 | 1,438 | +0.14% | 7,100 | 57億9183万 | -0.42% |
| 09/30 | (5%ルール)アクセンチュア(94.12%) |
| 09/30 | (IR情報)13:00 アクセンチュア株式会社による当社株券等に対する公開買付けの結果並びに親会社及び主要株主である筆頭株主の異動に関するお知らせ |
| 09/30 | 1,438 | 1,445 | 1,435 | 1,436 | -0.07% | 37,100 | 57億8377万 | -0.55% |
| 09/29 | 1,435 | 1,439 | 1,435 | 1,437 | +0.14% | 20,500 | 57億8780万 | -0.48% |
| 09/26 | 1,438 | 1,442 | 1,433 | 1,435 | -0.76% | 17,100 | 57億7974万 | -0.69% |
| 09/25 | 1,447 | 1,447 | 1,446 | 1,446 | -0.07% | 12,600 | 58億2405万 | +0.07% |
| 09/24 | 1,447 | 1,448 | 1,447 | 1,447 | +0.07% | 32,900 | 58億2808万 | +0.14% |
| 09/22 | 1,447 | 1,448 | 1,446 | 1,446 | 0% | 24,600 | 57億7944万 | +0.07% |
| 09/19 | 1,447 | 1,448 | 1,445 | 1,446 | -0.07% | 66,300 | 57億7944万 | +0.28% |
| 09/18 | (5%ルール)楽天証券(7.97%) |
| 09/18 | (5%ルール)野村證券(2%)ノムラインターナショナルピーエルシー(NOMURA IN…(4.75%) |
| 09/18 | 1,447 | 1,449 | 1,447 | 1,447 | -0.14% | 14,100 | 57億8344万 | +1.33% |
| 09/17 | 1,447 | 1,449 | 1,447 | 1,449 | +0.07% | 11,900 | 57億9143万 | +2.99% |
| 09/16 | 1,447 | 1,448 | 1,447 | 1,448 | +0.14% | 25,200 | 57億8743万 | +4.93% |
| 09/12 | (IR情報)15:30 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 |
| 09/12 | 1,447 | 1,448 | 1,446 | 1,446 | 0% | 42,000 | 57億7944万 | +7.03% |
| 09/11 | 1,446 | 1,448 | 1,445 | 1,446 | +0.07% | 25,800 | 57億7944万 | +9.3% |
| 09/10 | 1,445 | 1,446 | 1,445 | 1,445 | +0.07% | 20,900 | 57億7544万 | +11.67% |
| 09/09 | 1,445 | 1,445 | 1,444 | 1,444 | 0% | 79,600 | 57億7145万 | +14.15% |
| 09/08 | 1,444 | 1,445 | 1,444 | 1,444 | 0% | 41,000 | 57億7145万 | +16.83% |
| 09/05 | 1,445 | 1,445 | 1,444 | 1,444 | 0% | 21,000 | 57億7145万 | +19.64% |
| 09/04 | 1,445 | 1,445 | 1,444 | 1,444 | 0% | 27,000 | 57億7145万 | +22.58% |
| 09/03 | (5%ルール)楽天証券(6.97%) |
| 09/03 | 1,444 | 1,445 | 1,444 | 1,444 | 0% | 38,400 | 57億7145万 | +25.78% |
| 09/02 | 1,444 | 1,445 | 1,444 | 1,444 | -0.07% | 53,100 | 57億7145万 | +29.04% |
| 09/01 | 1,444 | 1,445 | 1,444 | 1,445 | +0.07% | 33,400 | 57億7544万 | +32.57% |
| 08/29 | (IR情報)15:30 事業計画及び成長可能性に関する説明資料 |
| 08/29 | 1,444 | 1,445 | 1,444 | 1,444 | 0% | 98,300 | 57億7145万 | +36.1% |
| 08/28 | 1,445 | 1,445 | 1,444 | 1,444 | 0% | 62,700 | 57億7145万 | +39.92% |
| 08/27 | 1,444 | 1,445 | 1,444 | 1,444 | 0% | 55,300 | 57億7145万 | +43.82% |
| 08/26 | 1,445 | 1,445 | 1,444 | 1,444 | 0% | 76,800 | 57億7145万 | +48.25% |
| 08/25 | 1,444 | 1,445 | 1,444 | 1,444 | 0% | 165,200 | 57億7145万 | +52.64% |
| 08/22 | 1,444 | 1,445 | 1,444 | 1,444 | 0% | 52,500 | 57億7145万 | +57.47% |
| 08/21 | 1,444 | 1,445 | 1,444 | 1,444 | 0% | 52,900 | 57億7145万 | +62.43% |
| 08/20 | 1,444 | 1,445 | 1,444 | 1,444 | -0.07% | 141,600 | 57億7145万 | +67.91% |
| 08/19 | 1,445 | 1,445 | 1,444 | 1,445 | +0.07% | 181,000 | 57億7544万 | +73.68% |
| 08/18 | (5%ルール)石川聡彦(44.86%) |
| 08/18 | 1,443 | 1,449 | 1,443 | 1,444 | +4.56% | 811,300 | 57億7145万 | +78.05% |
| 08/15 | (5%ルール)石川聡彦(44.86%) |
| 08/15 | (IR情報)16:00 (訂正)「アクセンチュア株式会社による当社株券等に対する公開買付けに関する賛同の意見表明及び応募推奨のお知らせ」の一部訂正について |
| 08/15 | (IR情報)16:00 (訂正)「アクセンチュア株式会社による株式会社アイデミー(証券コード:5577)の株券等に対する公開買付けの開始に関するお知らせ」の一部訂正について |
| 08/15 | 1,381 | 1,381 | 1,381 | 1,381 | +27.75% | 137,400 | 55億1964万 | +74.81% |
| 08/14 | (IR情報)16:15 アクセンチュア株式会社による株式会社アイデミー(証券コード:5577)の株券等に対する公開買付けの開始に関するお知らせ |
| 08/14 | (IR情報)16:15 アクセンチュア株式会社による当社株券等に対する公開買付けに関する賛同の意見表明及び応募推奨のお知らせ |
| 08/14 | 935 | 1,081 | 850 | 1,081 | +16.11% | 621,500 | 43億2059万 | +40.03% |
| 08/13 | 790 | 931 | 762 | 931 | +19.21% | 346,700 | 37億2106万 | +21.54% |
| 08/12 | 727 | 853 | 703 | 781 | +10.94% | 366,400 | 31億2153万 | +2.23% |
| 08/08 | 760 | 779 | 704 | 704 | -7.73% | 70,200 | 28億1378万 | -8.21% |
| 08/07 | 707 | 834 | 682 | 763 | +7.92% | 316,400 | 30億4959万 | -1.04% |
| 08/06 | 736 | 737 | 707 | 707 | -3.42% | 24,100 | 28億2577万 | -8.42% |
| 08/05 | 710 | 734 | 706 | 732 | +3.1% | 14,700 | 29億2569万 | -5.79% |
| 08/04 | 705 | 723 | 705 | 710 | -1.53% | 9,300 | 28億3776万 | -9.09% |
| 08/01 | (IR情報)16:50 (訂正)「取締役候補者選任及び監査役候補者選任に関するお知らせ」の一部訂正について |
| 08/01 | 713 | 726 | 712 | 721 | +0.84% | 10,900 | 28億8172万 | -8.27% |
| 07/31 | (IR情報)15:30 IRレポート7月号 |
| 07/31 | 714 | 725 | 709 | 715 | +0.42% | 17,400 | 28億5774万 | -9.84% |
| 07/30 | 714 | 720 | 702 | 712 | +0.28% | 13,700 | 28億4575万 | -11.22% |
| 07/29 | (IR情報)15:30 取締役候補者選任及び監査役候補者選任に関するお知らせ |
| 07/29 | 733 | 733 | 700 | 710 | -2.47% | 25,800 | 28億3776万 | -12.88% |
| 07/28 | 726 | 748 | 722 | 728 | +1.53% | 22,000 | 29億970万 | -12.18% |
| 07/25 | 711 | 719 | 698 | 717 | +0.28% | 35,800 | 28億6574万 | -14.44% |
| 07/24 | 726 | 727 | 714 | 715 | -1.79% | 10,900 | 28億5774万 | -15.18% |
| 07/23 | 720 | 748 | 711 | 728 | +1.53% | 35,300 | 29億970万 | -14.45% |
| 07/22 | 719 | 732 | 713 | 717 | -0.97% | 10,900 | 28億6574万 | -16.63% |
| 07/18 | 732 | 740 | 716 | 724 | -1.09% | 18,100 | 28億9371万 | -16.01% |
| 07/17 | 746 | 746 | 725 | 732 | -1.21% | 31,800 | 29億2569万 | -14.88% |
| 07/16 | 710 | 755 | 677 | 741 | +4.07% | 101,500 | 29億6166万 | -13.54% |
| 07/15 | 716 | 726 | 696 | 712 | -6.44% | 112,400 | 28億4575万 | -16.53% |
| 07/14 | 765 | 792 | 761 | 761 | -16.47% | 176,400 | 30億4160万 | -10.37% |
| 07/11 | (IR情報)15:30 2025年5月期決算説明資料 |
| 07/11 | (IR情報)15:30 2025年5月期決算短信[日本基準](連結) |
| 07/11 | 900 | 933 | 878 | 911 | +0.33% | 63,900 | 36億4113万 | +8.07% |
| 07/10 | 959 | 974 | 887 | 908 | -3.81% | 75,300 | 36億2913万 | +9.13% |
| 07/09 | 936 | 979 | 922 | 944 | +2.5% | 65,600 | 37億7302万 | +14.98% |
| 07/08 | 902 | 934 | 890 | 921 | +2.68% | 73,100 | 36億8109万 | +13.7% |
| 07/07 | 855 | 905 | 837 | 897 | +4.91% | 60,600 | 35億8517万 | +12.55% |
| 07/04 | 788 | 878 | 788 | 855 | +8.37% | 62,800 | 34億1730万 | +8.78% |
| 07/03 | 778 | 795 | 768 | 789 | -0.5% | 30,400 | 31億5351万 | +1.81% |
| 07/02 | 829 | 869 | 789 | 793 | -4.69% | 65,700 | 31億6950万 | +3.39% |
| 07/01 | 825 | 853 | 825 | 832 | +1.22% | 31,000 | 33億2537万 | +9.62% |
| 06/30 | 859 | 859 | 821 | 822 | -3.29% | 61,600 | 32億8541万 | +9.89% |
| 06/27 | 895 | 905 | 850 | 850 | -3.41% | 64,700 | 33億9732万 | +15.18% |
| 06/26 | 955 | 1,007 | 877 | 880 | -7.85% | 159,300 | 35億1722万 | +21.05% |
| 06/25 | 1,012 | 1,024 | 931 | 955 | -6.92% | 125,000 | 38億1699万 | +33.75% |
| 06/24 | 1,030 | 1,060 | 980 | 1,026 | -2.93% | 209,900 | 41億76万 | +46.78% |
| 06/23 | 988 | 1,123 | 973 | 1,057 | +8.63% | 900,600 | 42億2467万 | +55.44% |
| 06/20 | 823 | 973 | 823 | 973 | +18.23% | 196,700 | 38億8893万 | +47.2% |
| 06/19 | 910 | 910 | 816 | 823 | -11.88% | 91,000 | 32億8940万 | +27.8% |
| 06/18 | 917 | 975 | 829 | 934 | +0.21% | 352,500 | 37億3305万 | +47.09% |
| 06/17 | 790 | 932 | 782 | 932 | +19.18% | 521,100 | 37億2506万 | +50.08% |
| 06/16 | 702 | 782 | 692 | 782 | +14.66% | 114,500 | 31億2553万 | +28.83% |
| 06/13 | 650 | 694 | 645 | 682 | +6.07% | 34,500 | 27億2585万 | +13.86% |
| 06/12 | (IR情報)15:30 2025年5月期通期業績予想の修正(上方修正)に関するお知らせ |
| 06/12 | 645 | 645 | 636 | 643 | +1.1% | 6,100 | 25億6997万 | +8.25% |
| 06/11 | 622 | 637 | 622 | 636 | +1.76% | 8,700 | 25億4199万 | +7.43% |