| 2019 |
| 08/02 | 15:00 当社とクミアイ化学工業株式会社との株式交換契約承認決議に関するお知らせ |
| 08/01 | 725 | 738 | 725 | 730 | 0% | 5,400 | 48億8464万 | +7.83% |
| 07/31 | 734 | 741 | 726 | 730 | -1.35% | 25,200 | 48億8464万 | +8.63% |
| 07/30 | 711 | 742 | 711 | 740 | +2.64% | 27,400 | 49億5156万 | +11.11% |
| 07/29 | 740 | 753 | 718 | 721 | -2.57% | 22,600 | 48億2442万 | +9.24% |
| 07/26 | 720 | 741 | 714 | 740 | +2.78% | 60,600 | 49億5156万 | +13.15% |
| 07/25 | 699 | 725 | 699 | 720 | +3.75% | 17,300 | 48億1773万 | +11.11% |
| 07/24 | 699 | 703 | 694 | 694 | -1.56% | 9,400 | 46億4376万 | +8.1% |
| 07/23 | 680 | 710 | 676 | 705 | +4.75% | 44,900 | 47億1736万 | +10.85% |
| 07/22 | 661 | 673 | 657 | 673 | +1.36% | 13,400 | 45億324万 | +6.66% |
| 07/19 | 636 | 664 | 636 | 664 | +3.75% | 5,700 | 44億4302万 | +5.9% |
| 07/18 | 651 | 654 | 637 | 640 | -1.23% | 4,300 | 42億8243万 | +2.56% |
| 07/17 | 643 | 649 | 639 | 648 | +0.78% | 9,900 | 43億3596万 | +4.35% |
| 07/16 | 636 | 646 | 636 | 643 | +1.42% | 3,900 | 43億250万 | +3.88% |
| 07/12 | 638 | 641 | 627 | 634 | 0% | 6,300 | 42億4228万 | +2.92% |
| 07/11 | 638 | 640 | 629 | 634 | -2.01% | 8,600 | 42億4228万 | +3.93% |
| 07/10 | 15:00 臨時株主総会開催日時及び場所並びに付議議案の決定に関するお知らせ |
| 07/10 | 677 | 677 | 645 | 647 | -5.13% | 25,200 | 43億2927万 | +7.3% |
| 07/09 | 678 | 690 | 677 | 682 | +0.29% | 14,900 | 45億6346万 | +14.62% |
| 07/08 | 686 | 699 | 680 | 680 | -1.16% | 24,100 | 45億5008万 | +16.04% |
| 07/05 | 677 | 693 | 675 | 688 | +2.84% | 47,200 | 46億361万 | +19.44% |
| 07/04 | 654 | 669 | 649 | 669 | +1.98% | 17,600 | 44億7647万 | +17.78% |
| 07/03 | 655 | 656 | 645 | 656 | -0.3% | 17,700 | 43億8949万 | +16.93% |
| 07/02 | 654 | 661 | 650 | 658 | +1.54% | 24,300 | 44億287万 | +18.77% |
| 07/01 | 646 | 652 | 636 | 648 | +2.86% | 20,500 | 43億3596万 | +18.46% |
| 06/28 | 635 | 653 | 630 | 630 | -3.08% | 32,000 | 42億1551万 | +16.45% |
| 06/27 | 600 | 653 | 600 | 650 | +9.06% | 142,100 | 43億4934万 | +21.27% |
| 06/26 | 586 | 600 | 586 | 596 | 0% | 36,300 | 39億8801万 | +12.67% |
| 06/25 | 602 | 628 | 590 | 596 | +2.41% | 228,600 | 39億8801万 | +13.96% |
| 06/24 | 579 | 594 | 579 | 582 | +1.39% | 31,100 | 38億9433万 | +12.36% |
| 06/21 | 585 | 587 | 574 | 574 | -0.69% | 29,100 | 38億4080万 | +11.67% |
| 06/20 | 570 | 580 | 569 | 578 | +1.4% | 22,700 | 38億6757万 | +13.56% |
| 06/19 | 562 | 571 | 562 | 570 | +1.24% | 67,600 | 38億1404万 | +12.87% |
| 06/18 | 573 | 575 | 560 | 563 | -1.75% | 8,700 | 37億6720万 | +12.38% |
| 06/17 | 576 | 589 | 571 | 573 | -1.21% | 14,400 | 38億3411万 | +15.06% |
| 06/14 | 580 | 583 | 560 | 580 | 0% | 20,200 | 38億8095万 | +17.17% |
| 06/13 | 15:00 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 |
| 06/13 | 570 | 595 | 570 | 580 | +0.87% | 28,500 | 38億8095万 | +17.65% |
| 06/12 | 590 | 595 | 573 | 575 | -1.03% | 37,300 | 38億4749万 | +17.11% |
| 06/11 | 573 | 588 | 565 | 581 | +1.4% | 171,700 | 38億8764万 | +18.81% |
| 06/10 | 573 | 573 | 573 | 573 | +16.23% | 20,400 | 38億3411万 | +17.42% |
| 06/07 | 16:00 2019年10月期第2四半期決算短信〔日本基準〕(連結) |
| 06/07 | 16:00 クミアイ化学工業株式会社による株式会社理研グリーンの完全子会社化に関する株式交換契約締結(簡易株式交換)のお知らせ |
| 06/07 | 463 | 513 | 463 | 493 | +8.35% | 43,400 | 32億9881万 | +1.44% |
| 06/06 | 457 | 460 | 455 | 455 | +1.11% | 3,100 | 30億4454万 | -6.57% |
| 06/05 | 449 | 455 | 445 | 450 | +0.22% | 3,300 | 30億1108万 | -7.98% |
| 06/04 | 445 | 451 | 433 | 449 | +0.9% | 27,400 | 30億439万 | -8.74% |
| 06/03 | 465 | 471 | 441 | 445 | -4.3% | 34,400 | 29億7762万 | -9.74% |
| 05/31 | 508 | 574 | 465 | 465 | -5.87% | 377,000 | 31億1145万 | -6.25% |
| 05/30 | 15:00 業績予想の修正に関するお知らせ |
| 05/30 | 494 | 494 | 494 | 494 | +0.2% | 200 | 33億550万 | -0.6% |
| 05/29 | 491 | 493 | 491 | 493 | +0.2% | 300 | 32億9881万 | -0.8% |
| 05/28 | 492 | 492 | 492 | 492 | -0.2% | 100 | 32億9211万 | -1.01% |
| 05/27 | 489 | 493 | 489 | 493 | +0.82% | 700 | 32億9881万 | -1% |
| 05/24 | 477 | 496 | 477 | 489 | +3.16% | 5,100 | 32億7204万 | -1.81% |
| 05/23 | 470 | 474 | 465 | 474 | +0.85% | 1,800 | 31億7167万 | -4.82% |
| 05/22 | 470 | 470 | 468 | 470 | 0% | 2,700 | 31億4491万 | -5.81% |
| 05/21 | 464 | 470 | 464 | 470 | +1.29% | 600 | 31億4491万 | -6% |
| 05/20 | 464 | 464 | 464 | 464 | 0% | 300 | 31億476万 | -7.39% |
| 05/17 | 462 | 470 | 450 | 464 | -0.22% | 10,800 | 31億476万 | -7.57% |
| 05/16 | 477 | 478 | 458 | 465 | -2.52% | 7,500 | 31億1145万 | -7.55% |
| 05/15 | 490 | 490 | 477 | 477 | -3.05% | 6,800 | 31億9175万 | -5.36% |
| 05/14 | 490 | 492 | 478 | 492 | -0.61% | 8,000 | 32億9211万 | -2.57% |
| 05/13 | 505 | 505 | 491 | 495 | -3.88% | 6,500 | 33億1219万 | -1.98% |
| 05/10 | 540 | 542 | 513 | 515 | -4.45% | 20,900 | 34億4601万 | +1.98% |
| 05/09 | 540 | 540 | 526 | 539 | +0.56% | 9,600 | 36億661万 | +6.94% |
| 05/08 | 538 | 539 | 512 | 536 | -0.19% | 8,800 | 35億8653万 | +6.77% |
| 05/07 | 530 | 537 | 515 | 537 | +1.32% | 18,000 | 35億9322万 | +7.19% |
| 04/26 | 528 | 530 | 516 | 530 | +0.57% | 6,400 | 35億4638万 | +6.21% |
| 04/25 | 510 | 527 | 505 | 527 | +3.74% | 11,300 | 35億2631万 | +6.04% |
| 04/24 | 496 | 508 | 496 | 508 | +0.4% | 2,800 | 33億9918万 | +2.83% |
| 04/23 | 504 | 506 | 499 | 506 | +3.27% | 1,600 | 33億8579万 | +2.64% |
| 04/22 | 494 | 494 | 488 | 490 | -2.58% | 1,300 | 32億7873万 | -0.2% |
| 04/19 | 501 | 503 | 501 | 503 | +0.6% | 200 | 33億6572万 | +2.44% |
| 04/18 | 500 | 507 | 499 | 500 | 0% | 900 | 33億4565万 | +2.25% |
| 04/17 | 500 | 506 | 496 | 500 | 0% | 5,100 | 33億4565万 | +2.46% |
| 04/16 | 498 | 508 | 498 | 500 | -1.57% | 1,800 | 33億4565万 | +2.67% |
| 04/15 | 494 | 509 | 494 | 508 | +2.83% | 7,200 | 33億9918万 | +4.31% |
| 04/12 | 495 | 495 | 494 | 494 | +0.82% | 200 | 33億550万 | +1.86% |
| 04/11 | 490 | 494 | 490 | 490 | -0.61% | 1,400 | 32億7873万 | +1.24% |
| 04/10 | 491 | 493 | 491 | 493 | +0.41% | 700 | 32億9881万 | +2.07% |
| 04/09 | 491 | 491 | 481 | 491 | 0% | 5,400 | 32億8542万 | +1.87% |
| 04/08 | 494 | 495 | 490 | 491 | -0.61% | 1,000 | 32億8542万 | +2.08% |
| 04/05 | 490 | 494 | 488 | 494 | 0% | 1,100 | 33億550万 | +2.92% |
| 04/04 | 490 | 494 | 490 | 494 | +0.2% | 500 | 33億550万 | +2.92% |
| 04/03 | 490 | 493 | 487 | 493 | 0% | 1,500 | 32億9881万 | +2.71% |
| 04/02 | 494 | 494 | 491 | 493 | +0.2% | 1,700 | 32億9881万 | +2.92% |
| 04/01 | 492 | 493 | 492 | 492 | 0% | 1,100 | 32億9211万 | +2.93% |
| 03/29 | 494 | 494 | 478 | 492 | -0.4% | 3,900 | 32億9211万 | +3.14% |
| 03/28 | 495 | 495 | 492 | 494 | -0.2% | 1,000 | 33億550万 | +4% |
| 03/27 | 495 | 495 | 488 | 495 | -0.8% | 900 | 33億1219万 | +4.65% |
| 03/26 | 486 | 499 | 486 | 499 | +2.67% | 1,900 | 33億3895万 | +5.72% |
| 03/25 | 481 | 490 | 480 | 486 | +1.25% | 4,200 | 32億5197万 | +3.4% |
| 03/22 | 476 | 480 | 476 | 480 | +1.27% | 2,100 | 32億1182万 | +2.35% |
| 03/20 | 469 | 474 | 469 | 474 | +0.64% | 2,600 | 31億7167万 | +1.28% |
| 03/19 | 463 | 471 | 463 | 471 | +1.29% | 1,100 | 31億5160万 | +0.86% |
| 03/18 | 468 | 472 | 465 | 465 | -1.27% | 1,400 | 31億1145万 | -0.43% |
| 03/15 | 476 | 476 | 460 | 471 | -1.05% | 4,800 | 31億5160万 | +1.07% |
| 03/14 | 471 | 477 | 471 | 476 | 0% | 3,400 | 31億8505万 | +2.37% |
| 03/12 | 474 | 481 | 473 | 476 | +0.42% | 1,200 | 31億8505万 | +3.03% |
| 03/11 | 461 | 477 | 455 | 474 | -0.63% | 6,200 | 31億7167万 | +3.04% |
| 03/08 | 15:00 2019年10月期第1四半期決算短信〔日本基準〕(連結) |
| 03/08 | 477 | 477 | 465 | 477 | +1.06% | 5,100 | 31億9175万 | +4.15% |
| 03/07 | 455 | 472 | 455 | 472 | +1.51% | 4,100 | 31億5829万 | +3.28% |
| 03/06 | 461 | 465 | 461 | 465 | 0% | 300 | 31億1145万 | +2.2% |
| 03/05 | 461 | 465 | 461 | 465 | 0% | 300 | 31億1145万 | +2.42% |
| 03/04 | 462 | 465 | 462 | 465 | +0.65% | 3,100 | 31億1145万 | +2.65% |
