| 2025 |
| 12/05 | (IR情報)15:30 特別損失(減損損失)及び繰延税金資産の計上に関するお知らせ |
| 12/05 | (IR情報)15:30 2025年10月期通期連結業績予想の修正に関するお知らせ |
| 12/05 | 2,897 | 2,922 | 2,846 | 2,874 | -0.45% | 54,400 | 1098億3496万 | -0.07% |
| 12/04 | 2,717 | 2,931 | 2,700 | 2,887 | -1.03% | 93,700 | 1103億3178万 | +0.31% |
| 12/03 | 2,894 | 2,928 | 2,859 | 2,917 | +2.17% | 47,200 | 1114億7828万 | +1.28% |
| 12/02 | 2,871 | 2,917 | 2,838 | 2,855 | -1.69% | 62,600 | 1091億884万 | -0.94% |
| 12/01 | 3,050 | 3,050 | 2,904 | 2,904 | -4.79% | 43,500 | 1109億8146万 | +0.62% |
| 11/28 | 2,962 | 3,075 | 2,962 | 3,050 | +3.28% | 94,200 | 1165億6111万 | +5.68% |
| 11/27 | 2,898 | 2,993 | 2,839 | 2,953 | +4.24% | 82,900 | 1128億5408万 | +2.5% |
| 11/26 | 2,820 | 2,833 | 2,772 | 2,833 | +0.5% | 120,500 | 1082億6807万 | -1.6% |
| 11/25 | 2,827 | 2,870 | 2,786 | 2,819 | +1.48% | 88,100 | 1077億3304万 | -2.22% |
| 11/21 | 2,720 | 2,803 | 2,713 | 2,778 | -1.14% | 63,500 | 1061億6615万 | -3.64% |
| 11/20 | 2,816 | 2,860 | 2,784 | 2,810 | +1.55% | 31,100 | 1073億8909万 | -2.57% |
| 11/19 | 2,790 | 2,802 | 2,739 | 2,767 | -0.82% | 39,700 | 1057億4577万 | -3.99% |
| 11/18 | 2,939 | 2,939 | 2,755 | 2,790 | -6.63% | 87,400 | 1066億2475万 | -3.19% |
| 11/17 | 3,010 | 3,040 | 2,968 | 2,988 | -0.4% | 30,900 | 1141億9167万 | +3.46% |
| 11/14 | 2,930 | 3,055 | 2,923 | 3,000 | +1.59% | 75,900 | 1146億5027万 | +4.09% |
| 11/13 | 2,878 | 2,972 | 2,869 | 2,953 | +1.9% | 25,900 | 1128億5408万 | +2.89% |
| 11/12 | 2,806 | 2,898 | 2,789 | 2,898 | +1.47% | 34,000 | 1107億5216万 | +1.4% |
| 11/11 | 2,921 | 2,949 | 2,855 | 2,856 | -1.01% | 32,500 | 1091億4706万 | +0.28% |
| 11/10 | (自社株買い)取締役会(2025年7月4日)での決議状況(取得期間2025年7月7日~2026年3月31日) |
| 11/10 | 2,833 | 2,886 | 2,823 | 2,885 | +2.6% | 58,900 | 1102億5534万 | +1.69% |
| 11/07 | 2,802 | 2,833 | 2,767 | 2,812 | -1.02% | 32,100 | 1074億6552万 | -0.53% |
| 11/06 | 2,839 | 2,897 | 2,792 | 2,841 | +1.86% | 33,900 | 1085億7381万 | +0.74% |
| 11/05 | 2,829 | 2,848 | 2,699 | 2,789 | -1.45% | 48,200 | 1065億8654万 | -0.92% |
| 11/04 | (IR情報)15:30 (開示事項の経過)三井金属アクト株式会社の株式取得(子会社化)完了のお知らせ |
| 11/04 | 2,850 | 2,876 | 2,821 | 2,830 | -1.36% | 41,100 | 1081億5342万 | +0.64% |
| 10/31 | 2,887 | 2,919 | 2,844 | 2,869 | -2.32% | 45,000 | 1096億4388万 | +2.17% |
| 10/30 | 2,902 | 2,967 | 2,902 | 2,937 | +0.58% | 48,200 | 1122億4262万 | +4.82% |
| 10/29 | 2,960 | 2,975 | 2,920 | 2,920 | -0.61% | 71,300 | 1115億9293万 | +4.43% |
| 10/28 | 2,971 | 2,983 | 2,902 | 2,938 | -1.08% | 45,600 | 1122億8083万 | +5.38% |
| 10/27 | 2,994 | 3,030 | 2,955 | 2,970 | +0.24% | 49,100 | 1135億377万 | +6.8% |
| 10/24 | 2,903 | 2,990 | 2,903 | 2,963 | +2% | 39,500 | 1132億3625万 | +7.04% |
| 10/23 | 2,925 | 2,950 | 2,862 | 2,905 | -0.41% | 63,200 | 1110億1968万 | +5.41% |
| 10/22 | 2,898 | 2,924 | 2,884 | 2,917 | +0.31% | 31,000 | 1114億7828万 | +6.07% |
| 10/21 | 2,931 | 2,964 | 2,892 | 2,908 | -1.09% | 60,500 | 1111億3433万 | +5.98% |
| 10/20 | 2,850 | 2,950 | 2,847 | 2,940 | +4.55% | 98,900 | 1123億5727万 | +7.42% |
| 10/17 | 2,788 | 2,860 | 2,740 | 2,812 | +0.72% | 43,700 | 1074億6552万 | +2.89% |
| 10/16 | 2,820 | 2,850 | 2,761 | 2,792 | +0.36% | 61,700 | 1067億119万 | +2.27% |
| 10/15 | 2,759 | 2,807 | 2,750 | 2,782 | +0.76% | 57,900 | 1063億1902万 | +1.9% |
| 10/14 | (IR情報)12:00 自己株式の取得状況及び取得終了に関するお知らせ |
| 10/14 | 2,869 | 2,895 | 2,704 | 2,761 | -6.12% | 152,200 | 1055億1647万 | +1.06% |
| 10/10 | (IR情報)12:00 特別利益の計上および2025年10月期通期連結業績予想の修正に関するお知らせ |
| 10/10 | 2,809 | 2,968 | 2,790 | 2,941 | +4.11% | 162,700 | 1123億9548万 | +7.49% |
| 10/09 | 2,718 | 2,850 | 2,718 | 2,825 | +4.05% | 72,500 | 1079億6234万 | +3.48% |
| 10/08 | 2,650 | 2,733 | 2,639 | 2,715 | +2.22% | 50,600 | 1037億5850万 | -0.55% |
| 10/07 | (自社株買い)取締役会(2025年7月4日)での決議状況(取得期間2025年7月7日~2026年3月31日) |
| 10/07 | 2,687 | 2,687 | 2,639 | 2,656 | +0.72% | 24,500 | 1015億371万 | -2.92% |
| 10/06 | (IR情報)15:30 (開示事項の経過)三井金属アクト株式会社の株式譲渡実行日の決定に関するお知らせ |
| 10/06 | 2,676 | 2,677 | 2,621 | 2,637 | +2.37% | 36,400 | 1007億7759万 | -3.9% |
| 10/03 | 2,637 | 2,653 | 2,575 | 2,576 | -2.79% | 25,800 | 984億4637万 | -6.19% |
| 10/02 | 2,662 | 2,729 | 2,637 | 2,650 | +0.57% | 87,500 | 1012億7441万 | -3.64% |
| 10/01 | (IR情報)15:30 自己株式の取得状況に関するお知らせ |
| 10/01 | 2,672 | 2,676 | 2,590 | 2,635 | -2.34% | 68,400 | 1007億115万 | -4.22% |
| 09/30 | 2,693 | 2,721 | 2,684 | 2,698 | -0.66% | 33,700 | 1031億881万 | -1.96% |
| 09/29 | (IR情報)15:30 役員の異動について |
| 09/29 | 2,730 | 2,747 | 2,695 | 2,716 | -0.77% | 20,900 | 1037億9671万 | -1.24% |
| 09/26 | 2,721 | 2,752 | 2,721 | 2,737 | +0.63% | 34,300 | 1045億9926万 | -0.36% |
| 09/25 | 2,782 | 2,799 | 2,716 | 2,720 | -2.23% | 41,700 | 1039億4958万 | -0.87% |
| 09/24 | 2,725 | 2,826 | 2,720 | 2,782 | +2.09% | 61,500 | 1063億1902万 | +1.42% |
| 09/22 | 2,800 | 2,801 | 2,725 | 2,725 | -1.05% | 54,300 | 1041億4066万 | -0.44% |
| 09/19 | 2,678 | 2,758 | 2,678 | 2,754 | +3.92% | 122,500 | 1052億4895万 | +0.77% |
| 09/18 | 2,673 | 2,692 | 2,633 | 2,650 | -0.79% | 53,500 | 1012億7441万 | -2.86% |
| 09/17 | 2,724 | 2,757 | 2,670 | 2,671 | -2.73% | 55,000 | 1020億7696万 | -2.2% |
| 09/16 | 2,760 | 2,772 | 2,738 | 2,746 | -0.94% | 54,900 | 1049億4322万 | +0.48% |
| 09/12 | 2,755 | 2,790 | 2,741 | 2,772 | +1.43% | 48,300 | 1059億3685万 | +1.58% |
| 09/11 | 2,795 | 2,804 | 2,721 | 2,733 | -3.94% | 97,300 | 1044億4640万 | +0.29% |
| 09/10 | (自社株買い)取締役会(2025年7月4日)での決議状況(取得期間2025年7月4日~2026年3月31日) |
| 09/10 | 2,790 | 2,905 | 2,790 | 2,845 | +3.76% | 127,400 | 1087億2667万 | +4.6% |
| 09/09 | 2,737 | 2,795 | 2,702 | 2,742 | -0.98% | 113,100 | 1047億9035万 | +1.22% |
| 09/08 | 2,848 | 2,850 | 2,713 | 2,769 | -2.81% | 164,100 | 1058億2220万 | +2.56% |
| 09/05 | (IR情報)12:00 2025年10月期通期連結業績予想の修正に関するお知らせ |
| 09/05 | (IR情報)12:00 2025年10月期第3四半期決算短信〔日本基準〕(連結) |
| 09/05 | 2,849 | 2,948 | 2,773 | 2,849 | -0.04% | 466,100 | 1088億7954万 | +5.91% |
| 09/04 | 2,801 | 2,882 | 2,789 | 2,850 | +1.75% | 136,400 | 1089億1776万 | +6.5% |
| 09/03 | 2,801 | 2,870 | 2,788 | 2,801 | -0.32% | 98,200 | 1070億4514万 | +5.18% |
| 09/02 | 2,816 | 2,853 | 2,801 | 2,810 | -1.95% | 90,100 | 1073億8909万 | +6% |
| 09/01 | (IR情報)15:30 自己株式の取得状況に関するお知らせ |
| 09/01 | 2,840 | 2,885 | 2,804 | 2,866 | +0.35% | 78,500 | 1095億2923万 | +8.68% |
| 08/29 | 2,699 | 2,860 | 2,699 | 2,856 | +6.05% | 128,800 | 1091億4706万 | +9.01% |
| 08/28 | 2,691 | 2,706 | 2,666 | 2,693 | +0.3% | 52,900 | 1029億1773万 | +3.34% |
| 08/27 | (IR情報)18:15 投資有価証券売却益(特別利益)の計上に関するお知らせ |
| 08/27 | 2,665 | 2,690 | 2,629 | 2,685 | +0.6% | 66,800 | 1026億1199万 | +3.47% |
| 08/26 | 2,644 | 2,680 | 2,640 | 2,669 | +0.26% | 31,500 | 1020億52万 | +3.45% |
| 08/25 | 2,650 | 2,690 | 2,640 | 2,662 | +0.57% | 38,100 | 1017億3301万 | +3.58% |
| 08/22 | 2,651 | 2,680 | 2,628 | 2,647 | -0.15% | 28,000 | 1011億5976万 | +3.48% |
| 08/21 | 2,633 | 2,684 | 2,627 | 2,651 | -0.04% | 55,700 | 1013億1262万 | +4.21% |
| 08/20 | 2,657 | 2,662 | 2,607 | 2,652 | -1.19% | 52,400 | 1013億5084万 | +4.99% |
| 08/19 | 2,628 | 2,700 | 2,601 | 2,684 | +1.13% | 47,200 | 1025億7378万 | +6.97% |
| 08/18 | 2,625 | 2,675 | 2,621 | 2,654 | +1.1% | 51,600 | 1014億2727万 | +6.54% |
| 08/15 | 2,628 | 2,672 | 2,594 | 2,625 | -0.08% | 56,700 | 1003億1899万 | +6.1% |
| 08/14 | 2,693 | 2,699 | 2,600 | 2,627 | -3.17% | 72,800 | 1003億9542万 | +6.83% |
| 08/13 | 2,766 | 2,773 | 2,703 | 2,713 | -0.26% | 46,100 | 1036億8206万 | +11.1% |
| 08/12 | 2,665 | 2,788 | 2,665 | 2,720 | +2.26% | 71,000 | 1039億4958万 | +12.4% |
| 08/08 | 2,665 | 2,671 | 2,633 | 2,660 | +0.08% | 38,500 | 1016億5657万 | +11.02% |
| 08/07 | 2,618 | 2,663 | 2,590 | 2,658 | +1.76% | 72,700 | 1015億8014万 | +11.96% |
| 08/06 | 2,565 | 2,616 | 2,560 | 2,612 | +1.83% | 55,300 | 998億2217万 | +11.15% |
| 08/05 | 2,530 | 2,596 | 2,530 | 2,565 | +1.38% | 47,700 | 980億2598万 | +10.23% |
| 08/04 | 2,482 | 2,530 | 2,456 | 2,530 | +0.8% | 52,900 | 966億8840万 | +9.71% |
| 08/01 | (IR情報)15:30 自己株式の取得状況に関するお知らせ |
| 08/01 | (IR情報)15:30 特定子会社の清算に関するお知らせ及び(開示事項の経過)特定子会社の異動に関するお知らせ |
| 08/01 | 2,490 | 2,545 | 2,484 | 2,510 | +0.8% | 43,400 | 959億2406万 | +9.7% |
| 07/31 | 2,527 | 2,527 | 2,490 | 2,490 | -1.97% | 49,400 | 951億5972万 | +9.79% |
| 07/30 | 2,486 | 2,544 | 2,468 | 2,540 | +2.13% | 91,000 | 970億7056万 | +13.09% |
| 07/29 | 2,456 | 2,507 | 2,455 | 2,487 | +1.02% | 84,100 | 950億4507万 | +11.93% |
| 07/28 | 2,452 | 2,479 | 2,443 | 2,462 | +0.78% | 50,400 | 940億8966万 | +11.91% |
| 07/25 | 2,476 | 2,476 | 2,415 | 2,443 | -2.86% | 114,100 | 933億6354万 | +12.12% |
| 07/24 | 2,415 | 2,530 | 2,395 | 2,515 | +4.62% | 222,500 | 961億1514万 | +16.76% |
| 07/23 | 2,357 | 2,438 | 2,357 | 2,404 | +3.09% | 91,800 | 918億7308万 | +12.97% |
| 07/22 | 2,396 | 2,399 | 2,328 | 2,332 | -2.67% | 123,400 | 891億2148万 | +10.52% |
| 07/18 | 2,394 | 2,447 | 2,383 | 2,396 | +0.59% | 74,400 | 915億6735万 | +14.48% |
| 07/17 | 2,340 | 2,395 | 2,302 | 2,382 | +4.02% | 169,100 | 910億3231万 | +14.68% |
| 07/16 | (5%ルール)Zennor Asset Management LLP(5.16%) |
| 07/16 | 2,211 | 2,290 | 2,211 | 2,290 | +3.67% | 104,000 | 875億1637万 | +11.22% |
| 07/15 | 2,229 | 2,230 | 2,194 | 2,209 | -0.9% | 47,600 | 844億2082万 | +7.91% |
| 07/14 | 2,209 | 2,235 | 2,202 | 2,229 | +0.41% | 23,000 | 851億8515万 | +9.37% |
| 07/11 | 2,220 | 2,267 | 2,202 | 2,220 | +0.05% | 41,600 | 848億4120万 | +9.52% |
| 07/10 | 2,246 | 2,328 | 2,202 | 2,219 | -2.03% | 79,200 | 848億298万 | +10.07% |
| 07/04 | (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(更新) |
| 07/04 | (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 |