| 2021 |
| 04/22 | 4,345 | 4,405 | 4,330 | 4,350 | +3.45% | 4,633,000 | 1兆9804億 | +4.47% |
| 04/21 | 4,100 | 4,245 | 4,090 | 4,205 | -3.33% | 6,301,600 | 1兆9144億 | +1.52% |
| 04/20 | 17:30 CVCからの初期提案について |
| 04/20 | 4,355 | 4,430 | 4,350 | 4,350 | -1.14% | 3,016,400 | 1兆9804億 | +5.48% |
| 04/19 | 4,300 | 4,430 | 4,300 | 4,400 | -4.35% | 7,439,700 | 2兆32億 | +7.29% |
| 04/16 | 9:30 一部報道について |
| 04/16 | 4,685 | 4,785 | 4,575 | 4,600 | -6.03% | 9,995,100 | 2兆942億 | +12.91% |
| 04/15 | 4,955 | 4,970 | 4,875 | 4,895 | +0.72% | 6,706,100 | 2兆2285億 | +21.28% |
| 04/14 | 11:30 代表執行役の異動に関するお知らせ |
| 04/14 | 4,900 | 4,975 | 4,765 | 4,860 | +5.77% | 16,650,800 | 2兆2126億 | +21.9% |
| 04/14 | 8:45 一部報道について |
| 04/13 | 4,530 | 4,655 | 4,470 | 4,595 | +1.43% | 7,472,500 | 2兆920億 | +16.68% |
| 04/12 | 4,530 | 4,590 | 4,485 | 4,530 | +6.21% | 8,157,300 | 2兆624億 | +16.12% |
| 04/09 | 13:00 買収提案に関する当社取締役会議長のコメントについて |
| 04/09 | 4,460 | 4,520 | 4,235 | 4,265 | -5.43% | 13,141,600 | 1兆9417億 | +10.26% |
| 04/08 | 4,730 | 4,805 | 4,470 | 4,510 | -0.44% | 25,646,900 | 2兆533億 | +17.2% |
| 04/07 | 4,530 | 4,530 | 4,530 | 4,530 | +18.28% | 1,401,500 | 2兆624億 | +18.93% |
| 04/07 | 9:00 一部報道について |
| 04/06 | 3,935 | 3,945 | 3,825 | 3,830 | -3.04% | 2,451,000 | 1兆7437億 | +1.7% |
| 04/05 | 3,975 | 4,010 | 3,930 | 3,950 | -0.25% | 1,664,900 | 1兆7983億 | +5.33% |
| 04/02 | 3,925 | 3,960 | 3,900 | 3,960 | +1.28% | 2,038,200 | 1兆8029億 | +6.17% |
| 04/01 | 17:00 コンプライアンス有識者会議の提言受領と当社の施策について |
| 04/01 | 16:00 一部報道について |
| 04/01 | 4,020 | 4,090 | 3,905 | 3,910 | +4.55% | 6,306,100 | 1兆7801億 | +5.53% |
| 03/31 | 3,750 | 3,800 | 3,725 | 3,740 | -0.53% | 1,876,800 | 1兆7027億 | +1.41% |
| 03/30 | 3,790 | 3,790 | 3,740 | 3,760 | -1.18% | 1,938,400 | 1兆7118億 | +2.26% |
| 03/29 | 3,795 | 3,815 | 3,750 | 3,805 | +0.66% | 2,050,800 | 1兆7323億 | +3.79% |
| 03/26 | 3,830 | 3,830 | 3,765 | 3,780 | -0.92% | 2,897,200 | 1兆7209億 | +3.39% |
| 03/25 | 3,795 | 3,845 | 3,780 | 3,815 | 0% | 2,335,600 | 1兆7368億 | +4.55% |
| 03/24 | 3,850 | 3,865 | 3,790 | 3,815 | -1.68% | 3,522,400 | 1兆7368億 | +4.72% |
| 03/23 | 3,950 | 3,950 | 3,875 | 3,880 | -0.26% | 2,720,300 | 1兆7664億 | +6.68% |
| 03/22 | 3,950 | 4,010 | 3,865 | 3,890 | +0.13% | 4,477,200 | 1兆7710億 | +7.22% |
| 03/19 | 3,820 | 3,945 | 3,820 | 3,885 | +2.37% | 4,915,900 | 1兆7687億 | +7.38% |
| 03/18 | 15:00 臨時株主総会の決議結果に関するお知らせ |
| 03/18 | 3,760 | 3,875 | 3,715 | 3,795 | +1.47% | 5,348,100 | 1兆7277億 | +5.15% |
| 03/17 | 3,770 | 3,770 | 3,715 | 3,740 | -0.93% | 1,635,400 | 1兆7027億 | +3.83% |
| 03/16 | 3,725 | 3,775 | 3,690 | 3,775 | +0.94% | 2,020,200 | 1兆7186億 | +4.95% |
| 03/15 | 3,660 | 3,755 | 3,650 | 3,740 | +2.61% | 2,367,000 | 1兆7027億 | +4.09% |
| 03/12 | 3,655 | 3,695 | 3,625 | 3,645 | -0.55% | 2,173,300 | 1兆6594億 | +1.65% |
| 03/11 | 3,650 | 3,665 | 3,605 | 3,665 | +0.55% | 1,842,700 | 1兆6686億 | +2.43% |
| 03/10 | 18:30 株主総会検査役の選任に関するお知らせ |
| 03/10 | 3,710 | 3,715 | 3,640 | 3,645 | -0.82% | 2,156,400 | 1兆6594億 | +2.13% |
| 03/09 | 3,700 | 3,710 | 3,630 | 3,675 | -0.27% | 2,469,000 | 1兆6731億 | +3.26% |
| 03/08 | 3,765 | 3,800 | 3,670 | 3,685 | -2.12% | 3,545,000 | 1兆6777億 | +3.83% |
| 03/05 | 3,530 | 3,780 | 3,480 | 3,765 | +6.06% | 6,186,400 | 1兆7141億 | +6.39% |
| 03/04 | 3,410 | 3,560 | 3,390 | 3,550 | +3.2% | 3,562,400 | 1兆6162億 | +0.74% |
| 03/03 | 3,415 | 3,445 | 3,380 | 3,440 | -0.15% | 1,999,800 | 1兆5661億 | -2.22% |
| 03/02 | 3,455 | 3,460 | 3,380 | 3,445 | +0.29% | 2,641,500 | 1兆5684億 | -2.1% |
| 03/01 | 3,390 | 3,450 | 3,360 | 3,435 | +2.38% | 2,582,500 | 1兆5638億 | -1.86% |
| 02/26 | 3,420 | 3,430 | 3,340 | 3,355 | -3.59% | 5,585,000 | 1兆5274億 | -3.65% |
| 02/25 | 16:00 当社株主による株主総会検査役の選任の申立てのお知らせ |
| 02/25 | 15:00 量子暗号通信事業の会社分割(簡易吸収分割)による当社完全子会社への分割承継に関するお知らせ |
| 02/25 | 3,500 | 3,560 | 3,375 | 3,480 | +0.72% | 34,389,900 | 1兆5843億 | +0.37% |
| 02/24 | 3,540 | 3,545 | 3,425 | 3,455 | -1.29% | 3,672,700 | 1兆5729億 | +0.23% |
| 02/22 | 14:00 当社による株主総会検査役の選任の申立てのお知らせ |
| 02/22 | 3,550 | 3,595 | 3,500 | 3,500 | -1.13% | 2,862,400 | 1兆5934億 | +2.13% |
| 02/19 | 3,600 | 3,640 | 3,515 | 3,540 | -2.21% | 3,099,800 | 1兆6116億 | +3.96% |
| 02/18 | 3,665 | 3,670 | 3,605 | 3,620 | -1.23% | 2,215,000 | 1兆6481億 | +7.04% |
| 02/17 | 18:30 臨時株主総会の開催日時及び場所、付議議案並びに株主提案に対する当社取締役会の意見に関するお知らせ |
| 02/17 | 3,690 | 3,695 | 3,630 | 3,665 | +0.27% | 2,400,600 | 1兆6686億 | +9.08% |
| 02/16 | 3,640 | 3,720 | 3,640 | 3,655 | 0% | 2,530,300 | 1兆6640億 | +9.5% |
| 02/15 | 3,610 | 3,665 | 3,590 | 3,655 | +0.41% | 3,466,300 | 1兆6640億 | +10.36% |
| 02/12 | 12:30 臨時株主総会の開催予定日に関するお知らせ |
| 02/12 | 12:30 配当予想の修正に関するお知らせ |
| 02/12 | 12:30 東芝デバイス&ストレージ株式会社における構造改革に伴う早期退職優遇制度の実施結果等について |
| 02/12 | 12:30 2020年度第3四半期決算 |
| 02/12 | 12:30 2021年3月期第3四半期決算短信[米国基準](連結) |
| 02/12 | 3,650 | 3,725 | 3,595 | 3,640 | -0.68% | 4,102,100 | 1兆6572億 | +10.77% |
| 02/10 | 3,595 | 3,670 | 3,585 | 3,665 | +1.52% | 2,117,800 | 1兆6686億 | +12.42% |
| 02/09 | 3,600 | 3,650 | 3,570 | 3,610 | -0.14% | 2,412,500 | 1兆6435億 | +11.76% |
| 02/08 | 3,700 | 3,705 | 3,600 | 3,615 | -1.5% | 2,815,300 | 1兆6458億 | +12.86% |
| 02/05 | 3,575 | 3,690 | 3,560 | 3,670 | +2.51% | 4,888,100 | 1兆6708億 | +15.63% |
| 02/04 | 3,430 | 3,590 | 3,420 | 3,580 | +3.92% | 5,003,400 | 1兆6299億 | +13.87% |
| 02/03 | 3,450 | 3,455 | 3,420 | 3,445 | +0.29% | 1,927,800 | 1兆5684億 | +10.63% |
| 02/02 | 3,420 | 3,445 | 3,410 | 3,435 | +1.03% | 2,090,900 | 1兆5638億 | +11.09% |
| 02/01 | 3,380 | 3,415 | 3,365 | 3,400 | -0.44% | 2,386,000 | 1兆5479億 | +10.71% |
| 01/29 | 3,465 | 3,475 | 3,380 | 3,415 | -0.44% | 3,682,700 | 1兆5547億 | +11.97% |
| 01/28 | 3,340 | 3,455 | 3,340 | 3,430 | +0.88% | 3,301,900 | 1兆5616億 | +13.24% |
| 01/27 | 3,375 | 3,430 | 3,335 | 3,400 | 0% | 3,990,700 | 1兆5479億 | +12.88% |
| 01/26 | 3,435 | 3,450 | 3,340 | 3,400 | -1.73% | 5,075,000 | 1兆5479億 | +13.48% |
| 01/25 | 3,435 | 3,465 | 3,330 | 3,460 | +16.77% | 15,580,600 | 1兆5752億 | +16.07% |
| 01/22 | 15:45 東京証券取引所及び名古屋証券取引所市場第一部指定承認に関するお知らせ |
| 01/22 | 2,978 | 2,987 | 2,951 | 2,963 | -1.23% | 2,234,500 | 1兆3489億 | -0.03% |
| 01/21 | 11:45 株式報酬としての新株式発行に係る発行登録の取り下げに関するお知らせ |
| 01/21 | 2,977 | 3,005 | 2,973 | 3,000 | +0.77% | 1,548,300 | 1兆3658億 | +1.04% |
| 01/20 | 17:00 株主による臨時株主総会の招集許可申立てに関するお知らせ |
| 01/20 | 15:00 代表執行役の異動に関するお知らせ |
| 01/20 | 2,999 | 3,010 | 2,951 | 2,977 | +0.03% | 1,363,000 | 1兆3553億 | +0.2% |
| 01/19 | 2,968 | 3,025 | 2,962 | 2,976 | +0.92% | 1,601,800 | 1兆3549億 | +0.17% |
| 01/18 | 2,944 | 2,966 | 2,926 | 2,949 | -0.07% | 1,043,600 | 1兆3426億 | -0.84% |
| 01/15 | 12:00 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 |
| 01/15 | 2,985 | 3,010 | 2,951 | 2,951 | -0.97% | 2,099,300 | 1兆3435億 | -0.97% |
| 01/14 | 3,030 | 3,035 | 2,962 | 2,980 | -2.61% | 3,045,700 | 1兆3567億 | -0.23% |
| 01/13 | 3,110 | 3,110 | 3,040 | 3,060 | -1.61% | 1,843,500 | 1兆3931億 | +2.34% |
| 01/12 | 3,000 | 3,110 | 2,981 | 3,110 | +3.15% | 2,705,300 | 1兆4159億 | +3.87% |
| 01/08 | 3,010 | 3,015 | 2,976 | 3,015 | +0.33% | 2,498,300 | 1兆3726億 | +0.84% |
| 01/07 | 3,010 | 3,030 | 2,986 | 3,005 | +0.6% | 2,417,900 | 1兆3681億 | +0.47% |
| 01/06 | 2,955 | 3,020 | 2,952 | 2,987 | +2.51% | 3,243,200 | 1兆3599億 | -0.07% |
| 01/05 | 2,907 | 2,932 | 2,851 | 2,914 | -0.95% | 2,244,700 | 1兆3266億 | -2.41% |
| 01/04 | 2,926 | 2,950 | 2,876 | 2,942 | +1.98% | 1,477,100 | 1兆3394億 | -1.47% |
| 2020 |
| 12/30 | 2,905 | 2,906 | 2,872 | 2,885 | -1% | 1,177,900 | 1兆3134億 | -3.29% |
| 12/29 | 2,869 | 2,914 | 2,857 | 2,914 | +2.28% | 1,156,200 | 1兆3266億 | -2.28% |
| 12/28 | 2,867 | 2,882 | 2,831 | 2,849 | -0.8% | 1,175,900 | 1兆2970億 | -4.49% |
| 12/25 | 18:00 株主による臨時株主総会の招集請求に関するお知らせ |
| 12/25 | 2,889 | 2,911 | 2,868 | 2,872 | -1.34% | 933,300 | 1兆3075億 | -3.79% |
| 12/24 | 2,908 | 2,924 | 2,890 | 2,911 | +1.22% | 983,200 | 1兆3253億 | -2.51% |
| 12/23 | 2,866 | 2,907 | 2,861 | 2,876 | -1.13% | 1,389,500 | 1兆3093億 | -3.59% |
| 12/22 | 2,955 | 2,955 | 2,890 | 2,909 | -3.03% | 2,367,600 | 1兆3244億 | -2.42% |
| 12/21 | 3,020 | 3,030 | 2,960 | 3,000 | 0% | 1,589,300 | 1兆3658億 | +0.91% |
| 12/18 | 2,969 | 3,010 | 2,960 | 3,000 | -0.5% | 1,774,000 | 1兆3658億 | +1.28% |
| 12/18 | 8:30 (開示事項の経過)第181期定時株主総会における議決権行使の集計について |
| 12/18 | 8:30 株主による臨時株主総会の招集請求に関するお知らせ |
| 12/17 | 11:00 本日の一部報道について |
| 12/17 | 3,035 | 3,060 | 3,005 | 3,015 | -0.66% | 1,148,600 | 1兆3726億 | +2.1% |
| 12/16 | 3,115 | 3,120 | 3,035 | 3,035 | -2.25% | 1,395,400 | 1兆3817億 | +3.16% |
| 12/15 | 3,030 | 3,105 | 3,025 | 3,105 | +2.14% | 1,818,200 | 1兆4136億 | +5.97% |
| 12/14 | 2,984 | 3,070 | 2,980 | 3,040 | +2.36% | 1,790,000 | 1兆3840億 | +4.25% |
| 12/11 | 3,030 | 3,040 | 2,955 | 2,970 | -3.1% | 3,591,700 | 1兆3521億 | +2.41% |
| 12/10 | 3,130 | 3,140 | 3,040 | 3,065 | -1.13% | 1,857,700 | 1兆3954億 | +6.13% |
| 12/09 | 3,055 | 3,110 | 3,050 | 3,100 | -0.16% | 1,568,800 | 1兆4105億 | +7.98% |
| 12/08 | 15:00 株式報酬としての新株式の払込完了に関するお知らせ |
| 12/08 | 3,050 | 3,120 | 3,045 | 3,105 | +1.31% | 2,099,600 | 1兆4127億 | +8.87% |
| 12/07 | 3,160 | 3,175 | 3,030 | 3,065 | -2.7% | 1,974,800 | 1兆3945億 | +8.19% |
| 12/04 | 3,085 | 3,175 | 3,050 | 3,150 | +4.13% | 3,922,500 | 1兆4332億 | +11.78% |
| 12/03 | 3,050 | 3,070 | 2,993 | 3,025 | -0.17% | 1,753,700 | 1兆3763億 | +8.04% |
| 12/02 | 2,990 | 3,040 | 2,980 | 3,030 | +2.5% | 3,060,100 | 1兆3786億 | +8.64% |
| 12/01 | 2,937 | 2,965 | 2,905 | 2,956 | +1.16% | 2,818,900 | 1兆3449億 | +6.29% |
| 11/30 | 2,940 | 2,956 | 2,873 | 2,922 | +0.14% | 4,154,500 | 1兆3295億 | +5.22% |
| 11/27 | 2,809 | 2,920 | 2,809 | 2,918 | +2.28% | 3,030,600 | 1兆3276億 | +5.19% |
