| 2023 |
| 11/14 | （IR情報）15:30 自己株式取得に係る事項の決定に関するお知らせ |
| 11/14 | （IR情報）15:30 通期連結業績予想の修正に関するお知らせ |
| 11/14 | （IR情報）15:30 2023年12月期第118期第3四半期業績概要 |
| 11/14 | （IR情報）15:30 2023年12月期第3四半期決算短信〔日本基準〕(連結) |
| 11/09 | 580 | 588 | 579 | 588 | +1.55% | 51,000 | 235億1118万 | +1.73% |
| 11/08 | 593 | 593 | 578 | 579 | -1.7% | 77,200 | 231億5132万 | +0.17% |
| 11/07 | 586 | 595 | 586 | 589 | 0% | 69,000 | 235億5117万 | +1.73% |
| 11/06 | 584 | 589 | 562 | 589 | +1.73% | 227,500 | 235億5117万 | +1.73% |
| 11/02 | 582 | 585 | 577 | 579 | -0.17% | 34,600 | 231億5132万 | -0.17% |
| 11/01 | 585 | 585 | 579 | 580 | 0% | 99,100 | 231億9130万 | +0.35% |
| 10/31 | 573 | 580 | 573 | 580 | +0.87% | 90,400 | 231億9130万 | +0.52% |
| 10/30 | 574 | 578 | 573 | 575 | -1.54% | 66,500 | 229億9138万 | -0.17% |
| 10/27 | 571 | 584 | 571 | 584 | +2.64% | 83,100 | 233億5124万 | +1.57% |
| 10/26 | 568 | 577 | 567 | 569 | -0.18% | 77,600 | 227億5147万 | -0.87% |
| 10/25 | 573 | 576 | 569 | 570 | +0.71% | 56,400 | 227億9145万 | -0.7% |
| 10/24 | 566 | 569 | 553 | 566 | +0.35% | 132,700 | 226億3151万 | -1.39% |
| 10/23 | 569 | 574 | 564 | 564 | -1.57% | 101,000 | 225億5154万 | -1.57% |
| 10/20 | 568 | 574 | 565 | 573 | +0.53% | 59,100 | 229億1141万 | 0% |
| 10/19 | 572 | 574 | 568 | 570 | -1.55% | 54,300 | 227億9145万 | -0.35% |
| 10/18 | 570 | 583 | 569 | 579 | +2.3% | 91,200 | 231億5132万 | +1.22% |
| 10/17 | （IR情報）15:30 公認会計士等の合併に伴う異動に関するお知らせ |
| 10/17 | 576 | 580 | 565 | 566 | -1.39% | 144,700 | 226億3151万 | -0.88% |
| 10/16 | 579 | 584 | 574 | 574 | -1.71% | 95,100 | 229億5139万 | +0.7% |
| 10/13 | 590 | 590 | 584 | 584 | -1.02% | 94,200 | 233億5124万 | +2.46% |
| 10/12 | 586 | 590 | 583 | 590 | +0.34% | 100,600 | 235億9116万 | +3.51% |
| 10/11 | 590 | 591 | 582 | 588 | -0.51% | 97,800 | 235億1118万 | +3.34% |
| 10/10 | 588 | 595 | 586 | 591 | +1.37% | 126,900 | 236億3114万 | +4.05% |
| 10/06 | 579 | 586 | 573 | 583 | +1.92% | 88,700 | 233億1126万 | +2.82% |
| 10/05 | （5%ルール）三井住友トラスト・アセットマネジメント（1.8%）三井住友信託銀行（3.04%）日興アセットマネジメント（1.06%） |
| 10/05 | 570 | 577 | 570 | 572 | +0.88% | 137,900 | 228億7142万 | +1.06% |
| 10/04 | 580 | 582 | 567 | 567 | -3.57% | 241,000 | 226億7150万 | +0.18% |
| 10/03 | 600 | 600 | 588 | 588 | -2.65% | 218,700 | 235億1118万 | +3.89% |
| 10/02 | 600 | 614 | 599 | 604 | +1.34% | 389,900 | 241億5095万 | +7.09% |
| 09/29 | 600 | 607 | 591 | 596 | -0.17% | 487,200 | 238億3107万 | +6.05% |
| 09/28 | 622 | 635 | 583 | 597 | +8.15% | 2,224,200 | 238億7105万 | +6.61% |
| 09/27 | （IR情報）15:30 資本コストや株価を意識した経営の実現に向けた対応について |
| 09/27 | 548 | 552 | 544 | 552 | 0% | 100,400 | 220億7172万 | -1.08% |
| 09/26 | 555 | 556 | 550 | 552 | -0.54% | 113,700 | 220億7172万 | -1.08% |
| 09/25 | 556 | 559 | 551 | 555 | +0.54% | 64,500 | 221億9168万 | -0.54% |
| 09/22 | 549 | 556 | 546 | 552 | -0.36% | 99,600 | 220億7172万 | -0.9% |
| 09/21 | 559 | 562 | 553 | 554 | -0.54% | 93,800 | 221億5169万 | -0.54% |
| 09/20 | 567 | 567 | 557 | 557 | -1.76% | 182,200 | 222億7165万 | +0.18% |
| 09/19 | 561 | 567 | 557 | 567 | +1.07% | 104,000 | 226億7150万 | +1.98% |
| 09/15 | 558 | 564 | 556 | 561 | +0.9% | 109,200 | 224億3159万 | +0.9% |
| 09/14 | 554 | 557 | 551 | 556 | +0.54% | 89,700 | 222億3166万 | -0.18% |
| 09/13 | 557 | 557 | 553 | 553 | -0.54% | 77,100 | 221億1171万 | -1.07% |
| 09/12 | 561 | 563 | 554 | 556 | +0.18% | 85,600 | 222億3166万 | -0.71% |
| 09/11 | 558 | 561 | 553 | 555 | -0.36% | 64,200 | 221億9168万 | -1.25% |
| 09/08 | 559 | 565 | 557 | 557 | -2.11% | 107,400 | 222億7165万 | -1.07% |
| 09/07 | 570 | 573 | 568 | 569 | -0.35% | 91,300 | 227億5147万 | +0.89% |
| 09/06 | 570 | 572 | 569 | 571 | -0.35% | 44,700 | 228億3144万 | +0.88% |
| 09/05 | 572 | 573 | 568 | 573 | +0.53% | 71,400 | 229億1141万 | +1.06% |
| 09/04 | 567 | 570 | 565 | 570 | +1.24% | 53,500 | 227億9145万 | +0.35% |
| 09/01 | 563 | 563 | 559 | 563 | -0.18% | 57,600 | 225億1156万 | -1.23% |
| 08/31 | 561 | 571 | 557 | 564 | +0.89% | 115,600 | 225億5154万 | -1.23% |
| 08/30 | 558 | 561 | 556 | 559 | +0.36% | 90,200 | 223億5162万 | -2.44% |
| 08/29 | 560 | 561 | 555 | 557 | +0.18% | 132,500 | 222億7165万 | -3.13% |
| 08/28 | 550 | 556 | 550 | 556 | +1.83% | 77,500 | 222億3166万 | -3.64% |
| 08/25 | 548 | 552 | 545 | 546 | -0.91% | 100,200 | 218億3181万 | -5.7% |
| 08/24 | 554 | 559 | 550 | 551 | -0.36% | 68,200 | 220億3174万 | -5.33% |
| 08/23 | 545 | 553 | 542 | 553 | +1.47% | 69,900 | 221億1171万 | -5.31% |
| 08/22 | 544 | 545 | 542 | 545 | +0.37% | 73,000 | 217億9183万 | -7% |
| 08/21 | 543 | 548 | 540 | 543 | -0.18% | 77,100 | 217億1186万 | -7.65% |
| 08/18 | 540 | 546 | 540 | 544 | +0.18% | 54,100 | 217億5184万 | -7.8% |
| 08/17 | 539 | 546 | 536 | 543 | +0.74% | 75,100 | 217億1186万 | -8.28% |
| 08/16 | 550 | 552 | 539 | 539 | -2% | 102,300 | 215億5192万 | -9.26% |
| 08/15 | 564 | 567 | 550 | 550 | -2.31% | 99,700 | 219億9175万 | -7.87% |
| 08/14 | 582 | 587 | 562 | 563 | -5.22% | 157,800 | 225億1156万 | -6.17% |
| 08/10 | （IR情報）15:30 イーセップ株式会社との業務提携に関するお知らせ |
| 08/10 | （IR情報）15:30 2023年12月期第118期第2四半期業績概要 |
| 08/10 | （IR情報）15:30 2023年12月期第2四半期決算短信〔日本基準〕(連結) |
| 08/10 | 589 | 594 | 586 | 594 | +0.68% | 67,600 | 237億5110万 | -1.49% |
| 08/09 | 590 | 592 | 587 | 590 | 0% | 50,000 | 235億9116万 | -2.32% |
| 08/08 | 593 | 599 | 590 | 590 | -0.51% | 69,600 | 235億9116万 | -2.8% |
| 08/07 | 592 | 593 | 583 | 593 | +0.51% | 56,800 | 237億1111万 | -2.31% |
| 08/04 | 587 | 592 | 585 | 590 | 0% | 80,200 | 235億9116万 | -2.64% |
| 08/03 | 605 | 605 | 590 | 590 | -2.48% | 115,000 | 235億9116万 | -2.64% |
| 08/02 | 604 | 609 | 601 | 605 | -0.17% | 67,700 | 241億9093万 | -0.17% |
| 08/01 | 605 | 609 | 604 | 606 | +0.17% | 55,600 | 242億3092万 | +0.17% |
| 07/31 | 605 | 611 | 602 | 605 | +0.5% | 91,600 | 241億9093万 | +0.17% |
| 07/28 | 599 | 603 | 593 | 602 | -0.33% | 117,400 | 240億7098万 | -0.17% |
| 07/27 | 615 | 615 | 601 | 604 | -1.63% | 88,900 | 241億5095万 | +0.33% |
| 07/26 | 610 | 614 | 608 | 614 | +0.49% | 75,400 | 245億5080万 | +1.99% |
| 07/25 | 609 | 613 | 607 | 611 | +0.33% | 66,400 | 244億3084万 | +1.66% |
| 07/24 | 606 | 612 | 603 | 609 | +1.33% | 65,400 | 243億5087万 | +1.5% |
| 07/21 | 607 | 609 | 601 | 601 | -0.99% | 86,000 | 240億3099万 | +0.17% |
| 07/20 | 607 | 610 | 604 | 607 | 0% | 86,200 | 242億7090万 | +1.34% |
| 07/19 | 609 | 612 | 602 | 607 | +0.83% | 86,200 | 242億7090万 | +1.34% |
| 07/18 | 593 | 602 | 593 | 602 | +2.03% | 54,000 | 240億7098万 | +0.67% |
| 07/14 | 597 | 599 | 589 | 590 | -0.67% | 98,500 | 235億9116万 | -1.34% |
| 07/13 | 599 | 601 | 590 | 594 | -0.17% | 126,300 | 237億5110万 | -0.5% |
| 07/12 | 610 | 610 | 595 | 595 | -1.82% | 186,900 | 237億9108万 | -0.34% |
| 07/11 | 608 | 609 | 603 | 606 | +0.17% | 109,700 | 242億3092万 | +1.51% |
| 07/10 | 619 | 619 | 605 | 605 | -2.26% | 229,300 | 241億9093万 | +1.51% |
| 07/10 | （空売り報告）Nomura International plc 192,826株（0.48%）-0.08%義務消失 |
| 07/07 | 629 | 629 | 617 | 619 | -2.98% | 317,500 | 247億5072万 | +3.86% |
| 07/06 | 627 | 650 | 624 | 638 | +0.16% | 343,600 | 255億1044万 | +7.23% |
| 07/05 | 682 | 694 | 633 | 637 | -2.3% | 1,644,500 | 254億7045万 | +7.6% |
| 07/05 | （空売り報告）Nomura International plc 226,177株（0.56%）新規 |
| 07/04 | 604 | 672 | 604 | 652 | +11.64% | 3,223,400 | 260億7023万 | +10.51% |
| 07/03 | （IR情報）15:30 医療用生体内溶解性高純度マグネシウム材料の特許取得についてのお知らせ |
| 07/03 | 587 | 592 | 584 | 584 | +0.17% | 54,700 | 233億5124万 | -0.68% |
| 06/30 | 585 | 588 | 578 | 583 | -0.34% | 103,300 | 233億1126万 | -0.85% |
| 06/29 | 576 | 590 | 576 | 585 | -1.18% | 153,400 | 233億9123万 | -0.68% |
| 06/28 | 590 | 593 | 584 | 592 | +1.72% | 234,900 | 236億7113万 | +0.34% |
| 06/27 | 582 | 585 | 574 | 582 | +0.69% | 106,900 | 232億7127万 | -1.36% |
| 06/26 | 580 | 582 | 570 | 578 | 0% | 75,300 | 231億1133万 | -2.36% |
| 06/23 | 590 | 590 | 578 | 578 | -1.53% | 88,200 | 231億1133万 | -2.53% |
| 06/22 | 590 | 591 | 584 | 587 | 0% | 133,900 | 234億7120万 | -1.34% |
| 06/21 | 588 | 597 | 586 | 587 | -1.01% | 139,100 | 234億7120万 | -1.68% |
| 06/20 | 587 | 593 | 587 | 593 | 0% | 67,300 | 237億1111万 | -0.84% |
| 06/19 | 593 | 594 | 588 | 593 | 0% | 59,700 | 237億1111万 | -0.84% |
| 06/16 | 590 | 595 | 589 | 593 | 0% | 62,400 | 237億1111万 | -1% |
