| 2026 |
| 07/10 | 4,005 | 4,092 | 3,974 | 4,087 | +3.21% | 2,463,200 | 5373億9772万 | -9.9% |
| 07/09 | 4,044 | 4,075 | 3,927 | 3,960 | -6.91% | 3,782,200 | 5206億9855万 | -13.31% |
| 07/08 | (IR情報)23:55 2030年満期ユーロ円建取得条項付転換社債型新株予約権付社債及び2032年満期ユーロ円建取得条項付転換社債型新株予約権付社債の発行条件等の決定について |
| 07/08 | (IR情報)16:00 J-Link Limitedによる三菱マテリアル株式会社(証券コード5711)転換社債型新株予約権付社債の買付について |
| 07/08 | (IR情報)16:00 2030年満期ユーロ円建取得条項付転換社債型新株予約権付社債及び2032年満期ユーロ円建取得条項付転換社債型新株予約権付社債の発行について |
| 07/08 | 4,300 | 4,356 | 4,242 | 4,254 | -2.41% | 891,300 | 5593億5648万 | -7.7% |
| 07/07 | 4,583 | 4,600 | 4,339 | 4,359 | -5.77% | 1,037,900 | 5731億6288万 | -6.18% |
| 07/06 | 4,564 | 4,654 | 4,531 | 4,626 | +1.56% | 984,400 | 6082億7058万 | -1.03% |
| 07/03 | 4,495 | 4,566 | 4,403 | 4,555 | +2.31% | 1,089,600 | 5989億3483万 | -2.92% |
| 07/02 | 4,435 | 4,499 | 4,369 | 4,452 | +1.48% | 917,500 | 5853億9140万 | -5.6% |
| 07/01 | (IR情報)15:30 (開示事項の経過)銅精鉱の購入および電気銅等の販売に係る事業の承継会社の設立について |
| 07/01 | (IR情報)15:30 UBE三菱セメント株式会社の東京証券取引所への株式上場申請について |
| 07/01 | 4,385 | 4,399 | 4,289 | 4,387 | +1.67% | 1,160,400 | 5768億4459万 | -7.51% |
| 06/30 | 4,366 | 4,400 | 4,235 | 4,315 | -0.16% | 1,064,900 | 5673億7734万 | -9.71% |
| 06/29 | 4,318 | 4,331 | 4,160 | 4,322 | -0.94% | 1,549,600 | 5682億9777万 | -10.39% |
| 06/26 | 4,447 | 4,453 | 4,291 | 4,363 | -1.38% | 1,119,600 | 5736億8884万 | -10.23% |
| 06/25 | 4,616 | 4,638 | 4,403 | 4,424 | -2.96% | 1,275,000 | 5817億970万 | -9.47% |
| 06/24 | 4,606 | 4,693 | 4,505 | 4,559 | -1.53% | 766,300 | 5994億6079万 | -7.07% |
| 06/23 | 4,950 | 4,950 | 4,581 | 4,630 | -5.3% | 1,147,400 | 6087億9654万 | -5.8% |
| 06/22 | 4,836 | 4,990 | 4,830 | 4,889 | +1.1% | 1,290,700 | 6428億5233万 | -0.79% |
| 06/19 | 4,903 | 4,908 | 4,794 | 4,836 | -1.33% | 956,200 | 6358億8339万 | -2.01% |
| 06/18 | 4,839 | 4,968 | 4,837 | 4,901 | +0.39% | 675,400 | 6444億3021万 | -1.17% |
| 06/17 | 4,870 | 4,965 | 4,842 | 4,882 | -0.33% | 659,400 | 6419億3190万 | -1.91% |
| 06/16 | 5,050 | 5,050 | 4,898 | 4,898 | -2.14% | 906,800 | 6440億3574万 | -2.55% |
| 06/15 | 4,902 | 5,007 | 4,883 | 5,005 | +7.87% | 968,800 | 6581億512万 | -1.15% |
| 06/12 | (IR情報)15:30 伸銅品事業における棒製品およびエコブラス鍛造品の製造・販売終了について |
| 06/12 | 4,583 | 4,648 | 4,510 | 4,640 | +4.43% | 1,201,900 | 6101億1144万 | -8.77% |
| 06/11 | 4,400 | 4,443 | 4,276 | 4,443 | -0.63% | 885,100 | 5842億800万 | -13.27% |
| 06/10 | (IR情報)13:00 (訂正)「2026年3月期決算補足説明資料」の一部訂正について |
| 06/10 | 4,466 | 4,592 | 4,448 | 4,471 | -1.43% | 951,900 | 5878億8971万 | -13.34% |
| 06/09 | 4,665 | 4,680 | 4,487 | 4,536 | -1.28% | 1,367,600 | 5964億3653万 | -12.48% |
| 06/08 | 4,750 | 4,750 | 4,537 | 4,595 | -6.3% | 1,382,600 | 6041億9441万 | -11.72% |
| 06/05 | 4,931 | 4,957 | 4,850 | 4,904 | -1.39% | 745,200 | 6448億2467万 | -6.23% |
| 06/04 | 5,065 | 5,074 | 4,950 | 4,973 | -4.13% | 871,200 | 6538億9745万 | -5.1% |
| 06/03 | 5,150 | 5,298 | 5,087 | 5,187 | +2.71% | 1,127,900 | 6820億3621万 | -1.24% |
| 06/02 | (5%ルール)シルチェスター・インターナショナル・インベスター…(5.64%) |
| 06/02 | 5,027 | 5,066 | 4,920 | 5,050 | -0.77% | 968,200 | 6640億2215万 | -3.92% |
| 06/01 | 5,150 | 5,202 | 5,042 | 5,089 | -1.24% | 927,900 | 6691億5024万 | -3.45% |
| 05/29 | 5,228 | 5,263 | 5,048 | 5,153 | +0.49% | 1,620,700 | 6775億6557万 | -2.57% |
| 05/28 | (IR情報)11:30 会社分割(簡易吸収分割)による銅精鉱の購入および電気銅等の販売に係る事業の統合に関する最終契約書の締結について |
| 05/28 | 5,171 | 5,224 | 5,036 | 5,128 | -2.71% | 1,032,600 | 6742億7833万 | -3.3% |
| 05/27 | 5,448 | 5,565 | 5,260 | 5,271 | -2.93% | 1,015,000 | 6930億8133万 | -0.9% |
| 05/26 | 5,300 | 5,460 | 5,242 | 5,430 | +3.33% | 1,189,700 | 7139億8817万 | +1.7% |
| 05/25 | 5,157 | 5,280 | 5,132 | 5,255 | +4.31% | 858,000 | 6909億7750万 | -1.74% |
| 05/22 | 5,050 | 5,142 | 5,036 | 5,038 | +3.03% | 1,242,700 | 6624億4427万 | -6.1% |
| 05/21 | 4,829 | 4,946 | 4,782 | 4,890 | +2.17% | 1,055,000 | 6429億8382万 | -9.14% |
| 05/20 | 4,848 | 4,879 | 4,691 | 4,786 | -3.49% | 1,708,500 | 6293億891万 | -11.52% |
| 05/19 | (IR情報)14:00 中期経営戦略(2026~2028年度)進捗説明会の資料について |
| 05/19 | 5,000 | 5,050 | 4,903 | 4,959 | -1.94% | 1,473,300 | 6520億5660万 | -8.84% |
| 05/18 | 5,250 | 5,264 | 5,035 | 5,057 | -6.83% | 1,722,400 | 6649億4257万 | -7.5% |
| 05/15 | 5,363 | 5,516 | 5,321 | 5,428 | +1.23% | 1,744,000 | 7137億2519万 | -0.82% |
| 05/14 | 5,646 | 5,646 | 5,285 | 5,362 | -12.1% | 3,907,200 | 7050億4688万 | -1.83% |
| 05/13 | (IR情報)15:30 株式報酬制度の継続に関するお知らせ |
| 05/13 | (IR情報)15:30 通期連結業績予想値と実績値との差異に関するお知らせ |
| 05/13 | (IR情報)15:30 2026年3月期決算補足説明資料 |
| 05/13 | (IR情報)15:30 2026年3月期決算短信〔日本基準〕(連結) |
| 05/13 | 5,850 | 6,113 | 5,833 | 6,100 | +4.87% | 2,487,800 | 8020億8616万 | +11.8% |
| 05/12 | 5,657 | 5,838 | 5,560 | 5,817 | +4.17% | 1,799,900 | 7648億7462万 | +7.5% |
| 05/11 | 5,628 | 5,698 | 5,511 | 5,584 | +0.4% | 1,709,900 | 7342億3756万 | +3.68% |
| 05/08 | 5,325 | 5,562 | 5,284 | 5,562 | +4.16% | 1,250,200 | 7313億4479万 | +3.87% |
| 05/07 | 5,320 | 5,353 | 5,243 | 5,340 | +5.12% | 1,200,800 | 7021億5411万 | +0.17% |
| 05/01 | 5,143 | 5,153 | 5,010 | 5,080 | -0.24% | 701,600 | 6679億6683万 | -4.55% |
| 04/30 | 5,082 | 5,092 | 4,990 | 5,092 | -2.36% | 1,003,800 | 6695億4471万 | -4.38% |
| 04/28 | 5,183 | 5,227 | 5,145 | 5,215 | +1.12% | 958,100 | 6857億1792万 | -2.12% |
| 04/27 | 5,210 | 5,236 | 5,076 | 5,157 | -1.98% | 838,200 | 6780億9153万 | -3.03% |
| 04/24 | 5,284 | 5,328 | 5,229 | 5,261 | -0.59% | 642,800 | 6917億6644万 | -0.77% |
| 04/23 | 5,393 | 5,435 | 5,209 | 5,292 | -2.34% | 935,400 | 6958億4261万 | -0.15% |
| 04/22 | 5,450 | 5,460 | 5,358 | 5,419 | -2.33% | 879,300 | 7125億4179万 | +2.01% |
| 04/21 | 5,550 | 5,581 | 5,500 | 5,548 | +0.87% | 602,500 | 7295億394万 | +4.84% |
| 04/20 | 5,588 | 5,595 | 5,473 | 5,500 | -0.51% | 649,000 | 7231億9244万 | +4.42% |
| 04/17 | 5,701 | 5,739 | 5,523 | 5,528 | -4.26% | 1,068,700 | 7268億7414万 | +5.32% |
| 04/16 | (5%ルール)シルチェスター・インターナショナル・インベスター…(6.81%) |
| 04/16 | 5,728 | 5,784 | 5,678 | 5,774 | +2.16% | 943,200 | 7592億2057万 | +10.38% |
| 04/15 | 5,788 | 5,795 | 5,557 | 5,652 | -0.63% | 1,522,000 | 7431億7885万 | +8.46% |
| 04/14 | 5,590 | 5,742 | 5,586 | 5,688 | +4.18% | 1,418,200 | 7479億1247万 | +9.57% |
| 04/13 | 5,500 | 5,580 | 5,390 | 5,460 | -1.8% | 959,100 | 7179億3286万 | +5.85% |
| 04/10 | 5,577 | 5,615 | 5,505 | 5,560 | -0.04% | 1,051,000 | 7310億8181万 | +8.02% |
| 04/09 | 5,637 | 5,640 | 5,510 | 5,562 | -1.33% | 1,178,900 | 7313億4479万 | +8.32% |
| 04/08 | 5,455 | 5,637 | 5,415 | 5,637 | +8.34% | 2,869,000 | 7412億650万 | +10.08% |
| 04/07 | 5,198 | 5,240 | 5,144 | 5,203 | +0.68% | 715,900 | 6841億4005万 | +1.6% |
| 04/06 | 5,170 | 5,255 | 5,147 | 5,168 | -0.4% | 951,000 | 6795億3791万 | +0.21% |
| 04/03 | 5,182 | 5,225 | 5,127 | 5,189 | +3.88% | 1,165,400 | 6822億9919万 | -0.04% |
| 04/02 | 5,277 | 5,330 | 4,988 | 4,995 | -3.68% | 1,455,200 | 6567億9022万 | -4.05% |
| 04/01 | 5,076 | 5,186 | 5,017 | 5,186 | +7.71% | 1,590,700 | 6819億472万 | -0.88% |
| 03/31 | (IR情報)12:15 ReElement Technologies Corp.の株式取得、および日米協業の覚書締結に関するお知らせ |
| 03/31 | 4,800 | 4,918 | 4,725 | 4,815 | -2.61% | 1,904,700 | 6331億2211万 | -8.15% |
| 03/30 | 4,857 | 4,970 | 4,825 | 4,944 | -3.63% | 1,168,100 | 6500億8426万 | -5.99% |
| 03/27 | 5,044 | 5,144 | 4,951 | 5,130 | -0.27% | 1,780,800 | 6745億4131万 | -2.69% |
| 03/26 | 5,258 | 5,260 | 5,090 | 5,144 | -0.79% | 1,386,800 | 6763億8216万 | -2.43% |
| 03/26 | (空売り報告)個人 600,000株(0.45%)-0.08%義務消失 |
| 03/25 | (IR情報)15:30 固定資産の減損損失(特別損失)の計上及び子会社の異動(特定子会社化)に関するお知らせ |
| 03/25 | (IR情報)15:30 取締役の異動等に関するお知らせ |
| 03/25 | 5,222 | 5,265 | 5,158 | 5,185 | +4.43% | 1,845,400 | 6817億7323万 | -1.58% |
| 03/25 | (空売り報告)個人 700,000株(0.53%)新規 |
| 03/24 | 4,994 | 5,042 | 4,818 | 4,965 | +4.9% | 2,392,100 | 6528億4554万 | -5.79% |
| 03/23 | 4,879 | 4,908 | 4,683 | 4,733 | -9.35% | 3,557,100 | 6223億3996万 | -10.48% |
| 03/19 | 5,449 | 5,449 | 5,201 | 5,221 | -6.82% | 6,014,300 | 6865億686万 | -1.62% |
| 03/18 | 5,299 | 5,603 | 5,256 | 5,603 | +14.28% | 3,875,900 | 7367億3586万 | +5.8% |
| 03/17 | 5,000 | 5,020 | 4,890 | 4,903 | -0.55% | 815,100 | 6446億9319万 | -6.84% |
| 03/16 | 4,970 | 4,998 | 4,840 | 4,930 | -2.16% | 1,310,700 | 6482億4340万 | -6.08% |
| 03/13 | 4,933 | 5,107 | 4,919 | 5,039 | -1.02% | 1,186,500 | 6625億7576万 | -3.67% |
| 03/12 | 5,240 | 5,247 | 5,034 | 5,091 | -3.21% | 1,240,800 | 6694億1322万 | -2.42% |
| 03/11 | 5,292 | 5,413 | 5,254 | 5,260 | +1.84% | 1,561,400 | 6916億3495万 | +1.35% |
| 03/10 | 5,092 | 5,220 | 5,069 | 5,165 | +6.21% | 1,846,800 | 6791億4344万 | +0.35% |
| 03/09 | 4,897 | 4,928 | 4,662 | 4,863 | -6.1% | 2,561,900 | 6394億3360万 | -4.98% |
| 03/06 | 5,120 | 5,209 | 4,998 | 5,179 | -1.73% | 1,477,500 | 6809億8430万 | +1.41% |
| 03/05 | 5,600 | 5,600 | 5,186 | 5,270 | +1.35% | 1,956,900 | 6929億4984万 | +3.78% |
| 03/04 | 5,348 | 5,524 | 5,020 | 5,200 | -7.93% | 3,094,000 | 6837億4558万 | +3.05% |
| 03/03 | 6,100 | 6,100 | 5,601 | 5,648 | -7.46% | 2,602,100 | 7426億5289万 | +12.62% |
| 03/02 | 5,954 | 6,126 | 5,852 | 6,103 | +1.62% | 2,425,000 | 8024億8063万 | +22.85% |
| 02/27 | (IR情報)15:30 株主優待制度の廃止に関するお知らせ |
| 02/27 | (5%ルール)シルチェスター・インターナショナル・インベスター…(7.83%) |
| 02/27 | 5,584 | 6,017 | 5,566 | 6,006 | +7.98% | 3,095,900 | 7897億2614万 | +22.62% |
| 02/26 | 5,681 | 5,760 | 5,514 | 5,562 | -1.77% | 2,282,300 | 7313億4479万 | +15.11% |
| 02/25 | 5,496 | 5,710 | 5,452 | 5,662 | +4.14% | 2,308,000 | 7444億9374万 | +18.43% |
| 02/24 | 5,300 | 5,445 | 5,252 | 5,437 | +3.82% | 2,108,800 | 7149億860万 | +14.97% |
| 02/20 | 5,210 | 5,241 | 5,170 | 5,237 | -0.51% | 1,269,100 | 6886億1069万 | +11.76% |
| 02/19 | 5,249 | 5,277 | 5,197 | 5,264 | +2.49% | 1,266,700 | 6921億6091万 | +13.16% |
| 02/18 | 4,994 | 5,179 | 4,970 | 5,136 | +1.95% | 1,334,700 | 6753億3025万 | +11.24% |
| 02/17 | 5,200 | 5,236 | 5,038 | 5,038 | -3.54% | 1,594,400 | 6624億4427万 | +10% |
| 02/16 | 5,497 | 5,506 | 5,223 | 5,223 | -3.22% | 2,221,700 | 6867億6984万 | +15.09% |
| 02/13 | 5,347 | 5,629 | 5,182 | 5,397 | +2.8% | 5,766,500 | 7096億4902万 | +20.25% |
| 02/12 | (IR情報)15:30 2026年3月期第3四半期決算補足説明資料 |
| 02/12 | (IR情報)15:30 業績予想の修正に関するお知らせ |
| 02/12 | (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) |