| 2018 |
| 08/15 | (5%ルール)Dalton Investments LLC(9.06%) |
| 08/09 | 746 | 748 | 739 | 740 | -1.07% | 61,500 | 366億4898万 | -3.01% |
| 08/08 | 744 | 753 | 743 | 748 | +0.54% | 48,700 | 370億4518万 | -2.09% |
| 08/07 | 745 | 750 | 740 | 744 | -0.53% | 46,100 | 368億4708万 | -2.75% |
| 08/06 | 745 | 755 | 745 | 748 | -0.13% | 45,200 | 370億4518万 | -2.22% |
| 08/03 | 745 | 750 | 745 | 749 | +0.54% | 56,000 | 370億9471万 | -2.35% |
| 08/02 | 736 | 748 | 736 | 745 | +0.4% | 81,700 | 368億9660万 | -2.99% |
| 08/01 | 740 | 743 | 734 | 742 | +0.13% | 102,600 | 367億4803万 | -3.51% |
| 07/31 | 737 | 745 | 728 | 741 | -0.13% | 215,100 | 366億9850万 | -3.89% |
| 07/30 | 760 | 762 | 739 | 742 | -3.39% | 149,500 | 367億4803万 | -3.89% |
| 07/27 | (IR情報)14:30 平成31年3月期第1四半期決算説明資料 |
| 07/27 | (IR情報)14:30 平成31年3月期第1四半期決算短信〔日本基準〕(連結) |
| 07/27 | 775 | 776 | 758 | 768 | -0.26% | 100,700 | 380億3569万 | -0.78% |
| 07/26 | 782 | 782 | 767 | 770 | +0.39% | 65,700 | 381億3474万 | -0.65% |
| 07/25 | 771 | 772 | 765 | 767 | +0.39% | 49,900 | 379億8617万 | -1.16% |
| 07/24 | (5%ルール)Dalton Investments LLC(8.03%) |
| 07/24 | 769 | 778 | 762 | 764 | +0.26% | 106,400 | 378億3759万 | -1.67% |
| 07/23 | 762 | 786 | 758 | 762 | -0.65% | 161,700 | 377億3854万 | -2.06% |
| 07/20 | 783 | 783 | 767 | 767 | -1.54% | 79,700 | 379億8617万 | -1.67% |
| 07/19 | 798 | 798 | 779 | 779 | -2.63% | 156,400 | 385億8048万 | -0.26% |
| 07/18 | (IR情報)15:30 2019年(平成31年)3月期第1四半期連結決算速報値に関するお知らせ |
| 07/18 | 797 | 804 | 797 | 800 | +0.38% | 51,700 | 396億2051万 | +2.3% |
| 07/17 | 789 | 800 | 788 | 797 | +1.66% | 67,800 | 394億7194万 | +1.92% |
| 07/13 | (IR情報)15:30 平成30年7月豪雨による被害に対する義援金の拠出について |
| 07/13 | 779 | 786 | 774 | 784 | +0.51% | 46,000 | 388億2810万 | +0.38% |
| 07/12 | 774 | 784 | 774 | 780 | +1.04% | 37,700 | 386億3000万 | -0.26% |
| 07/11 | 774 | 775 | 761 | 772 | -1.28% | 41,500 | 382億3380万 | -1.4% |
| 07/10 | 777 | 795 | 777 | 782 | +1.16% | 66,400 | 387億2905万 | -0.26% |
| 07/09 | 767 | 773 | 762 | 773 | +1.44% | 33,100 | 382億8332万 | -1.4% |
| 07/06 | 757 | 764 | 751 | 762 | +0.93% | 45,900 | 377億3854万 | -2.93% |
| 07/05 | 765 | 766 | 751 | 755 | -1.69% | 36,400 | 373億9186万 | -3.94% |
| 07/04 | 751 | 777 | 751 | 768 | +1.05% | 57,200 | 380億3569万 | -2.41% |
| 07/03 | 759 | 775 | 755 | 760 | 0% | 59,700 | 376億3949万 | -3.55% |
| 07/02 | 771 | 785 | 759 | 760 | -2.31% | 54,900 | 376億3949万 | -3.68% |
| 06/29 | 775 | 782 | 772 | 778 | 0% | 36,900 | 385億3095万 | -1.52% |
| 06/28 | 770 | 780 | 770 | 778 | +0.13% | 29,600 | 385億3095万 | -1.52% |
| 06/27 | 775 | 782 | 771 | 777 | -0.26% | 57,400 | 384億8142万 | -1.77% |
| 06/26 | 777 | 782 | 773 | 779 | +0.13% | 33,800 | 385億8048万 | -1.52% |
| 06/25 | 800 | 800 | 775 | 778 | -1.89% | 63,400 | 385億3095万 | -1.77% |
| 06/22 | 780 | 794 | 780 | 793 | +0.13% | 42,600 | 392億7383万 | +0.13% |
| 06/21 | 794 | 799 | 792 | 792 | -0.63% | 26,000 | 392億2431万 | 0% |
| 06/20 | 795 | 798 | 789 | 797 | +0.38% | 59,900 | 394億7194万 | +0.63% |
| 06/19 | 789 | 799 | 789 | 794 | +0.25% | 37,500 | 393億2336万 | +0.25% |
| 06/18 | 799 | 799 | 790 | 792 | -1.12% | 33,800 | 392億2431万 | +0.13% |
| 06/15 | 800 | 801 | 793 | 801 | +0.63% | 24,000 | 396億7004万 | +1.26% |
| 06/14 | 791 | 800 | 787 | 796 | -0.13% | 43,900 | 394億2241万 | +0.63% |
| 06/13 | 797 | 801 | 794 | 797 | +0.25% | 59,400 | 394億7194万 | +0.76% |
| 06/12 | 800 | 800 | 791 | 795 | +0.25% | 59,600 | 393億7289万 | +0.38% |
| 06/11 | 797 | 802 | 793 | 793 | -0.5% | 64,100 | 392億7383万 | +0.25% |
| 06/08 | 801 | 802 | 795 | 797 | -0.62% | 63,500 | 394億7194万 | +0.63% |
| 06/07 | 792 | 802 | 792 | 802 | +1.01% | 41,000 | 397億1957万 | +1.26% |
| 06/06 | 797 | 800 | 790 | 794 | -0.38% | 44,500 | 393億2336万 | +0.38% |
| 06/05 | 799 | 801 | 792 | 797 | -0.25% | 48,900 | 394億7194万 | +0.89% |
| 06/04 | 796 | 801 | 794 | 799 | +1.52% | 74,500 | 395億7099万 | +1.14% |
| 06/01 | (5%ルール)Dalton Investments LLC(7.03%) |
| 06/01 | 766 | 791 | 766 | 787 | +2.08% | 63,800 | 389億7668万 | -0.38% |
| 05/31 | 785 | 790 | 767 | 771 | -1.53% | 57,600 | 381億8427万 | -2.53% |
| 05/30 | 778 | 789 | 773 | 783 | -0.63% | 50,300 | 387億7858万 | -1.01% |
| 05/29 | 789 | 794 | 780 | 788 | -0.51% | 40,000 | 390億2621万 | -0.51% |
| 05/28 | 798 | 798 | 786 | 792 | +0.25% | 52,100 | 392億2431万 | 0% |
| 05/25 | 788 | 799 | 782 | 790 | +0.89% | 52,000 | 391億2526万 | -0.25% |
| 05/24 | 793 | 793 | 779 | 783 | -0.89% | 70,500 | 387億7858万 | -1.01% |
| 05/23 | 785 | 792 | 785 | 790 | +0.38% | 35,000 | 391億2526万 | -0.25% |
| 05/22 | 799 | 799 | 787 | 787 | -1.01% | 62,600 | 389億7668万 | -0.63% |
| 05/21 | 790 | 800 | 789 | 795 | 0% | 52,100 | 393億7289万 | +0.38% |
| 05/18 | 790 | 795 | 786 | 795 | +0.76% | 41,000 | 393億7289万 | +0.38% |
| 05/17 | (IR情報)15:00 機構改革および人事異動に関するお知らせ |
| 05/17 | 786 | 791 | 782 | 789 | +0.77% | 32,100 | 390億7573万 | -0.38% |
| 05/16 | 779 | 788 | 778 | 783 | -0.51% | 42,100 | 387億7858万 | -1.14% |
| 05/15 | 798 | 801 | 786 | 787 | -1.01% | 45,900 | 389億7668万 | -0.63% |
| 05/14 | 799 | 799 | 792 | 795 | -0.25% | 31,100 | 393億7289万 | +0.38% |
| 05/11 | 799 | 801 | 792 | 797 | -0.25% | 50,200 | 394億7194万 | +0.63% |
| 05/10 | 800 | 800 | 794 | 799 | -0.37% | 57,900 | 395億7099万 | +1.01% |
| 05/09 | 792 | 802 | 789 | 802 | +1.26% | 190,400 | 397億1957万 | +1.52% |
| 05/08 | 796 | 802 | 789 | 792 | -0.5% | 40,200 | 392億2431万 | +0.51% |
| 05/07 | 800 | 800 | 785 | 796 | -0.62% | 26,300 | 394億2241万 | +1.14% |
| 05/02 | 790 | 801 | 777 | 801 | +2.69% | 62,000 | 396億7004万 | +2.04% |
| 05/01 | 772 | 781 | 768 | 780 | +0.52% | 54,900 | 386億3000万 | -0.38% |
| 04/27 | (IR情報)14:30 平成30年3月期決算説明資料 |
| 04/27 | (IR情報)14:30 平成30年3月期決算短信〔日本基準〕(連結) |
| 04/27 | 791 | 799 | 770 | 776 | -2.51% | 72,000 | 384億3190万 | -0.64% |
| 04/26 | 797 | 801 | 793 | 796 | -0.5% | 35,300 | 394億2241万 | +2.18% |
| 04/25 | 798 | 803 | 797 | 800 | -0.12% | 37,800 | 396億2051万 | +2.83% |
| 04/24 | 791 | 805 | 791 | 801 | +1.39% | 51,500 | 396億7004万 | +3.22% |
| 04/23 | 780 | 793 | 780 | 790 | +0.77% | 11,400 | 391億2526万 | +2.07% |
| 04/20 | 783 | 789 | 782 | 784 | -0.51% | 14,800 | 388億2810万 | +1.42% |
| 04/19 | 791 | 799 | 787 | 788 | -1.01% | 22,400 | 390億2621万 | +2.07% |
| 04/18 | 785 | 797 | 782 | 796 | +1.4% | 50,300 | 394億2241万 | +3.24% |
| 04/17 | (IR情報)15:30 2018年(平成30年)3月期連結決算速報値に関するお知らせ |
| 04/17 | 799 | 799 | 783 | 785 | -1.75% | 27,200 | 388億7763万 | +1.95% |
| 04/16 | 798 | 803 | 792 | 799 | 0% | 31,700 | 395億7099万 | +3.9% |
| 04/13 | 789 | 799 | 789 | 799 | +1.78% | 30,900 | 395億7099万 | +4.17% |
| 04/12 | 788 | 791 | 782 | 785 | -0.38% | 18,800 | 388億7763万 | +2.61% |
| 04/11 | 784 | 793 | 781 | 788 | -0.51% | 24,900 | 390億2621万 | +3.14% |
| 04/10 | 787 | 796 | 780 | 792 | +0.25% | 43,700 | 392億2431万 | +3.8% |
| 04/09 | 781 | 791 | 775 | 790 | +1.54% | 38,200 | 391億2526万 | +3.67% |
| 04/06 | 782 | 786 | 776 | 778 | -1.14% | 33,600 | 385億3095万 | +2.23% |
| 04/05 | 796 | 796 | 780 | 787 | -0.38% | 37,100 | 389億7668万 | +3.42% |
| 04/04 | 782 | 790 | 775 | 790 | +2.2% | 36,500 | 391億2526万 | +3.67% |
| 04/03 | 757 | 779 | 753 | 773 | +0.39% | 44,900 | 382億8332万 | +1.31% |
| 04/02 | 777 | 777 | 767 | 770 | -0.77% | 31,400 | 381億3474万 | +0.79% |
| 03/30 | 752 | 787 | 752 | 776 | +3.19% | 80,800 | 384億3190万 | +1.44% |
| 03/29 | (IR情報)10:00 人事異動に関するお知らせ |
| 03/29 | 772 | 772 | 738 | 752 | -0.66% | 55,000 | 372億4328万 | -1.7% |
| 03/28 | 749 | 760 | 734 | 757 | +0.26% | 96,300 | 374億9091万 | -1.3% |
| 03/27 | 730 | 755 | 730 | 755 | +4.14% | 57,300 | 373億9186万 | -1.82% |
| 03/26 | 727 | 727 | 708 | 725 | +0.97% | 61,000 | 359億609万 | -5.84% |
| 03/23 | (IR情報)16:00 創業100周年記念配当を含む平成30年3月期の期末配当予定に関するお知らせ |
| 03/23 | (IR情報)16:00 代表取締役の異動および役員の異動に関するお知らせ |
| 03/23 | 732 | 742 | 717 | 718 | -5.53% | 70,200 | 355億5941万 | -6.75% |
| 03/22 | 754 | 763 | 752 | 760 | +0.13% | 33,200 | 376億3949万 | -1.3% |
| 03/20 | 743 | 760 | 743 | 759 | +0.93% | 20,700 | 375億8996万 | -1.17% |
| 03/19 | 757 | 764 | 748 | 752 | -1.18% | 25,100 | 372億4328万 | -1.96% |
| 03/16 | 761 | 764 | 756 | 761 | 0% | 18,600 | 376億8901万 | -0.52% |
| 03/13 | (IR情報)10:00 信州大学全学教育機構との連携に関する覚書締結のお知らせ |