| 2026 |
| 03/06 | 1,754 | 1,778 | 1,721 | 1,778 | +0.06% | 2,100 | 75億7680万 | +1.37% |
| 03/05 | 1,770 | 1,792 | 1,770 | 1,777 | +2.72% | 1,700 | 75億7254万 | +1.48% |
| 03/04 | 1,714 | 1,761 | 1,710 | 1,730 | 0% | 5,100 | 73億7225万 | -1.03% |
| 03/03 | 1,739 | 1,750 | 1,710 | 1,730 | -2.75% | 2,600 | 73億7225万 | -0.92% |
| 03/02 | 1,778 | 1,790 | 1,738 | 1,779 | +0.06% | 3,200 | 75億8106万 | +2.01% |
| 02/27 | 1,775 | 1,778 | 1,770 | 1,778 | +0.4% | 1,800 | 75億7680万 | +2.18% |
| 02/26 | 1,782 | 1,789 | 1,765 | 1,771 | -0.67% | 3,700 | 75億4697万 | +2.02% |
| 02/25 | 1,782 | 1,783 | 1,756 | 1,783 | +0.56% | 2,200 | 75億9811万 | +3% |
| 02/24 | 1,783 | 1,783 | 1,730 | 1,773 | -1.5% | 3,000 | 75億5549万 | +2.78% |
| 02/20 | 1,812 | 1,819 | 1,800 | 1,800 | -2.12% | 1,300 | 76億7055万 | +4.65% |
| 02/19 | 1,847 | 1,847 | 1,811 | 1,839 | -0.59% | 1,700 | 78億3675万 | +7.29% |
| 02/18 | 1,851 | 1,857 | 1,745 | 1,850 | -0.05% | 7,800 | 78億8362万 | +8.44% |
| 02/17 | 1,790 | 1,856 | 1,790 | 1,851 | +3.47% | 10,300 | 78億8788万 | +9.07% |
| 02/16 | 1,769 | 1,790 | 1,761 | 1,789 | +1.19% | 4,800 | 76億2368万 | +5.92% |
| 02/13 | 1,756 | 1,768 | 1,748 | 1,768 | +1.03% | 2,600 | 75億3419万 | +5.05% |
| 02/12 | 1,737 | 1,753 | 1,737 | 1,750 | +0.52% | 3,300 | 74億5748万 | +4.29% |
| 02/10 | 1,710 | 1,750 | 1,710 | 1,741 | +1.22% | 8,200 | 74億1913万 | +4.13% |
| 02/09 | 1,702 | 1,720 | 1,702 | 1,720 | +1.18% | 3,200 | 73億2964万 | +3.3% |
| 02/06 | 1,689 | 1,700 | 1,689 | 1,700 | 0% | 3,800 | 72億4441万 | +2.47% |
| 02/05 | 1,700 | 1,701 | 1,689 | 1,700 | +0.29% | 3,600 | 72億4441万 | +2.72% |
| 02/04 | 1,693 | 1,699 | 1,693 | 1,695 | +0.12% | 900 | 72億2310万 | +2.73% |
| 02/03 | 1,689 | 1,696 | 1,689 | 1,693 | +0.24% | 3,700 | 72億1458万 | +2.98% |
| 02/02 | 1,681 | 1,698 | 1,681 | 1,689 | +0.54% | 2,700 | 71億9753万 | +3.11% |
| 01/30 | (IR情報)15:30 2026年3月期第3四半期決算短信〔日本基準〕(連結) |
| 01/30 | 1,681 | 1,690 | 1,680 | 1,680 | 0% | 1,000 | 71億5918万 | +2.88% |
| 01/29 | 1,680 | 1,704 | 1,674 | 1,680 | -1.23% | 4,800 | 71億5918万 | +3.19% |
| 01/28 | 1,700 | 1,710 | 1,673 | 1,701 | -0.23% | 1,700 | 72億4867万 | +4.87% |
| 01/27 | 1,665 | 1,710 | 1,664 | 1,705 | +1.49% | 6,300 | 72億6572万 | +5.57% |
| 01/26 | 1,665 | 1,680 | 1,660 | 1,680 | +0.18% | 4,500 | 71億5918万 | +4.48% |
| 01/23 | 1,693 | 1,693 | 1,667 | 1,677 | -0.95% | 1,100 | 71億4640万 | +4.68% |
| 01/22 | 1,670 | 1,699 | 1,641 | 1,693 | +1.62% | 6,900 | 72億1458万 | +6.08% |
| 01/21 | 1,634 | 1,666 | 1,634 | 1,666 | +1.15% | 4,700 | 70億9952万 | +4.85% |
| 01/20 | 1,643 | 1,651 | 1,634 | 1,647 | +0.24% | 700 | 70億1855万 | +3.98% |
| 01/19 | 1,639 | 1,656 | 1,635 | 1,643 | +0.24% | 3,100 | 70億151万 | +4.05% |
| 01/16 | 1,652 | 1,670 | 1,619 | 1,639 | -0.79% | 4,000 | 69億8446万 | +4% |
| 01/15 | 1,636 | 1,670 | 1,635 | 1,652 | +0.98% | 4,700 | 70億3986万 | +5.16% |
| 01/14 | 1,640 | 1,653 | 1,634 | 1,636 | -0.24% | 1,200 | 69億7168万 | +4.47% |
| 01/13 | 1,633 | 1,655 | 1,630 | 1,640 | -0.43% | 5,300 | 69億8872万 | +5.06% |
| 01/09 | 1,649 | 1,649 | 1,624 | 1,647 | +0.3% | 2,700 | 70億1855万 | +5.78% |
| 01/08 | 1,624 | 1,648 | 1,620 | 1,642 | +0.74% | 6,100 | 69億9725万 | +5.73% |
| 01/07 | 1,613 | 1,649 | 1,612 | 1,630 | +2.19% | 4,100 | 69億4611万 | +5.3% |
| 01/06 | 1,580 | 1,620 | 1,575 | 1,595 | +1.53% | 3,700 | 67億9696万 | +3.24% |
| 01/05 | 1,566 | 1,586 | 1,565 | 1,571 | -0.88% | 500 | 66億9469万 | +1.88% |
| 2025 |
| 12/30 | 1,585 | 1,585 | 1,572 | 1,585 | 0% | 1,800 | 67億5435万 | +2.92% |
| 12/29 | 1,579 | 1,585 | 1,552 | 1,585 | +0.13% | 1,700 | 67億5435万 | +2.99% |
| 12/26 | 1,553 | 1,583 | 1,543 | 1,583 | +2% | 4,000 | 67億4582万 | +3.06% |
| 12/25 | 1,565 | 1,565 | 1,510 | 1,552 | +0.65% | 9,800 | 66億1372万 | +1.17% |
| 12/24 | 1,559 | 1,559 | 1,537 | 1,542 | -1.09% | 1,800 | 65億7110万 | +0.59% |
| 12/23 | 1,533 | 1,559 | 1,533 | 1,559 | +1.37% | 4,100 | 66億4355万 | +1.7% |
| 12/22 | 1,544 | 1,554 | 1,532 | 1,538 | +0.07% | 5,700 | 65億5406万 | +0.46% |
| 12/19 | 1,540 | 1,543 | 1,530 | 1,537 | -0.13% | 1,400 | 65億4980万 | +0.39% |
| 12/18 | 1,535 | 1,539 | 1,530 | 1,539 | +0.65% | 3,700 | 65億5832万 | +0.59% |
| 12/17 | 1,530 | 1,536 | 1,520 | 1,529 | +0.59% | 3,300 | 65億1571万 | -0.07% |
| 12/16 | 1,531 | 1,531 | 1,520 | 1,520 | -0.72% | 5,000 | 64億7735万 | -0.65% |
| 12/15 | 1,528 | 1,532 | 1,525 | 1,531 | +0.2% | 3,500 | 65億2423万 | 0% |
| 12/12 | 1,528 | 1,528 | 1,522 | 1,528 | +0.2% | 2,700 | 65億1144万 | -0.13% |
| 12/11 | 1,535 | 1,535 | 1,525 | 1,525 | -0.78% | 1,700 | 64億9866万 | -0.33% |
| 12/10 | 1,550 | 1,550 | 1,535 | 1,537 | -0.71% | 2,400 | 65億4980万 | +0.46% |
| 12/09 | 1,540 | 1,555 | 1,532 | 1,548 | +1.64% | 8,300 | 65億9667万 | +1.18% |
| 12/08 | 1,530 | 1,531 | 1,523 | 1,523 | -0.33% | 1,300 | 64億9014万 | -0.72% |
| 12/05 | (5%ルール)山口記念科学振興財団(7.04%) |
| 12/05 | (5%ルール)ジヤパンソフアルシム(9.72%)山口一城(5.06%)豊島薬品(5.68%) |
| 12/05 | 1,525 | 1,537 | 1,525 | 1,528 | +0.33% | 1,100 | 65億1144万 | -0.78% |
| 12/04 | 1,529 | 1,530 | 1,523 | 1,523 | -0.39% | 1,400 | 64億9014万 | -1.36% |
| 12/03 | 1,539 | 1,541 | 1,529 | 1,529 | -0.71% | 1,400 | 65億1571万 | -1.16% |
| 12/02 | 1,543 | 1,550 | 1,529 | 1,540 | +0.92% | 1,300 | 65億6258万 | -0.65% |
| 12/01 | 1,539 | 1,540 | 1,526 | 1,526 | -0.91% | 2,800 | 65億292万 | -1.74% |
| 11/28 | 1,523 | 1,540 | 1,522 | 1,540 | +0.2% | 1,700 | 65億6258万 | -1.09% |
| 11/27 | 1,538 | 1,540 | 1,521 | 1,537 | +1.05% | 1,500 | 65億4980万 | -1.41% |
| 11/26 | 1,544 | 1,544 | 1,515 | 1,521 | -1.49% | 2,900 | 64億8161万 | -2.62% |
| 11/25 | 1,534 | 1,544 | 1,514 | 1,544 | +1.25% | 3,200 | 65億7963万 | -1.28% |
| 11/21 | 1,515 | 1,525 | 1,515 | 1,525 | +0.46% | 1,200 | 64億9866万 | -2.56% |
| 11/20 | 1,553 | 1,553 | 1,515 | 1,518 | -1.56% | 1,100 | 64億6883万 | -3.13% |
| 11/19 | 1,554 | 1,554 | 1,542 | 1,542 | +0.98% | 2,500 | 65億7110万 | -1.66% |
| 11/18 | 1,525 | 1,527 | 1,516 | 1,527 | +0.13% | 1,000 | 65億718万 | -2.74% |
| 11/17 | 1,526 | 1,526 | 1,514 | 1,525 | -0.07% | 4,300 | 64億9866万 | -3.05% |
| 11/14 | 1,530 | 1,539 | 1,523 | 1,526 | -0.33% | 900 | 65億292万 | -3.17% |
| 11/13 | 1,525 | 1,531 | 1,525 | 1,531 | +0.39% | 1,400 | 65億2423万 | -3.04% |
| 11/12 | 1,526 | 1,537 | 1,525 | 1,525 | -0.07% | 1,600 | 64億9866万 | -3.6% |
| 11/11 | 1,527 | 1,527 | 1,526 | 1,526 | -0.91% | 2,000 | 65億292万 | -3.72% |
| 11/10 | 1,534 | 1,540 | 1,530 | 1,540 | +0.92% | 800 | 65億6258万 | -3.02% |
| 11/07 | 1,526 | 1,531 | 1,526 | 1,526 | +0.33% | 800 | 65億292万 | -4.09% |
| 11/06 | 1,517 | 1,542 | 1,513 | 1,521 | -0.33% | 1,500 | 64億8161万 | -4.58% |
| 11/05 | 1,535 | 1,540 | 1,504 | 1,526 | -0.2% | 10,700 | 65億292万 | -4.45% |
| 11/04 | 1,666 | 1,666 | 1,525 | 1,529 | -8.11% | 15,400 | 65億1571万 | -4.62% |
| 10/31 | (IR情報)15:30 2026年3月期第2四半期(中間期)決算短信〔日本基準〕(連結) |
| 10/31 | 1,666 | 1,676 | 1,650 | 1,664 | -0.42% | 3,400 | 70億9100万 | +3.48% |
| 10/30 | 1,622 | 1,705 | 1,622 | 1,671 | +3.47% | 4,400 | 71億2083万 | +3.85% |
| 10/29 | 1,613 | 1,615 | 1,613 | 1,615 | +0.5% | 200 | 68億8219万 | +0.44% |
| 10/28 | 1,610 | 1,610 | 1,607 | 1,607 | 0% | 600 | 68億4810万 | -0.19% |
| 10/27 | 1,620 | 1,659 | 1,607 | 1,607 | -0.56% | 4,400 | 68億4810万 | -0.25% |
| 10/24 | 1,617 | 1,617 | 1,616 | 1,616 | +0.25% | 700 | 68億8645万 | +0.31% |
| 10/23 | 1,588 | 1,612 | 1,583 | 1,612 | +0.56% | 1,200 | 68億6940万 | +0.12% |
| 10/22 | 1,591 | 1,615 | 1,590 | 1,603 | +0.75% | 1,400 | 68億3105万 | -0.43% |
| 10/21 | 1,587 | 1,604 | 1,580 | 1,591 | +0.89% | 3,400 | 67億7991万 | -1.12% |
| 10/20 | 1,581 | 1,582 | 1,577 | 1,577 | +0.32% | 1,100 | 67億2025万 | -1.87% |
| 10/17 | 1,572 | 1,572 | 1,572 | 1,572 | +0.13% | 200 | 66億9895万 | -2.24% |
| 10/16 | 1,557 | 1,570 | 1,557 | 1,570 | +0.83% | 500 | 66億9042万 | -2.48% |
| 10/15 | 1,579 | 1,579 | 1,557 | 1,557 | -1.39% | 500 | 66億3503万 | -3.41% |
| 10/14 | 1,588 | 1,588 | 1,534 | 1,579 | -1.31% | 1,800 | 67億2878万 | -2.23% |
| 10/10 | 1,603 | 1,603 | 1,600 | 1,600 | -0.87% | 1,500 | 68億1827万 | -0.99% |
| 10/09 | 1,602 | 1,614 | 1,601 | 1,614 | +0.75% | 800 | 68億7793万 | -0.19% |
| 10/08 | 1,603 | 1,620 | 1,602 | 1,602 | 0% | 700 | 68億2679万 | -0.93% |
| 10/07 | 1,603 | 1,612 | 1,602 | 1,602 | -0.19% | 1,300 | 68億2679万 | -1.05% |