| 2020 |
| 06/18 | （IR情報）15:00 当社株式の上場廃止のお知らせ |
| 06/18 | 4,620 | 4,630 | 4,620 | 4,625 | +0.11% | 418,400 | 9636億8772万 | +0.13% |
| 06/17 | 4,620 | 4,625 | 4,620 | 4,620 | 0% | 363,700 | 9626億4589万 | +0.04% |
| 06/16 | 4,620 | 4,625 | 4,620 | 4,620 | 0% | 156,800 | 9626億4589万 | +0.04% |
| 06/15 | 4,620 | 4,625 | 4,620 | 4,620 | 0% | 142,500 | 9626億4589万 | +0.04% |
| 06/12 | 4,620 | 4,625 | 4,620 | 4,620 | 0% | 149,200 | 9626億4589万 | +0.06% |
| 06/11 | 4,620 | 4,625 | 4,620 | 4,620 | 0% | 213,100 | 9626億4589万 | +0.06% |
| 06/10 | 4,620 | 4,625 | 4,615 | 4,620 | 0% | 1,173,900 | 9626億4589万 | +0.09% |
| 06/09 | 4,620 | 4,625 | 4,620 | 4,620 | -0.11% | 215,200 | 9626億4589万 | +0.09% |
| 06/08 | 4,620 | 4,625 | 4,615 | 4,625 | +0.11% | 842,800 | 9636億8772万 | +0.22% |
| 06/05 | （IR情報）15:00 株式併合、単元株式数の定めの廃止及び定款一部変更の承認決議に関するお知らせ |
| 06/05 | 4,625 | 4,625 | 4,620 | 4,620 | 0% | 136,600 | 9626億4589万 | +0.13% |
| 06/04 | 4,620 | 4,625 | 4,620 | 4,620 | 0% | 171,000 | 9626億4589万 | +0.13% |
| 06/03 | 4,625 | 4,625 | 4,620 | 4,620 | -0.11% | 116,900 | 9626億4589万 | +0.15% |
| 06/02 | 4,620 | 4,625 | 4,620 | 4,625 | 0% | 122,800 | 9636億8772万 | +0.28% |
| 06/01 | 4,620 | 4,625 | 4,615 | 4,625 | +0.22% | 471,500 | 9636億8772万 | +0.3% |
| 05/29 | 4,615 | 4,625 | 4,610 | 4,615 | +0.11% | 1,916,100 | 9616億407万 | +0.07% |
| 05/28 | 4,615 | 4,620 | 4,605 | 4,610 | -0.11% | 3,483,100 | 9605億6224万 | -0.04% |
| 05/27 | 4,615 | 4,625 | 4,615 | 4,615 | -0.11% | 107,800 | 9616億407万 | +0.04% |
| 05/26 | 4,620 | 4,620 | 4,615 | 4,620 | +0.11% | 95,300 | 9626億4589万 | +0.15% |
| 05/25 | （IR情報）15:00 2020年3月期決算説明資料 |
| 05/25 | （IR情報）15:00 2020年3月期決算短信〔IFRS〕(連結) |
| 05/25 | 4,620 | 4,620 | 4,615 | 4,615 | 0% | 56,600 | 9616億407万 | +0.04% |
| 05/22 | （IR情報）15:00 自己株式の消却に関するお知らせ |
| 05/22 | 4,615 | 4,625 | 4,615 | 4,615 | 0% | 173,600 | 9616億407万 | +0.04% |
| 05/21 | 4,620 | 4,625 | 4,615 | 4,615 | 0% | 253,900 | 9616億407万 | +0.04% |
| 05/20 | 4,615 | 4,625 | 4,615 | 4,615 | 0% | 125,600 | 9616億407万 | +0.04% |
| 05/19 | 4,620 | 4,620 | 4,615 | 4,615 | 0% | 134,800 | 9616億407万 | +0.04% |
| 05/18 | 4,615 | 4,620 | 4,615 | 4,615 | 0% | 85,000 | 9616億407万 | +0.04% |
| 05/15 | （IR情報）15:00 2020年3月期通期連結決算発表の日程のお知らせ |
| 05/15 | 4,615 | 4,620 | 4,615 | 4,615 | 0% | 72,200 | 9616億407万 | +0.04% |
| 05/14 | 4,620 | 4,620 | 4,615 | 4,615 | 0% | 135,400 | 9616億407万 | +0.04% |
| 05/13 | 4,610 | 4,620 | 4,610 | 4,615 | 0% | 208,400 | 9616億407万 | +0.07% |
| 05/12 | 4,615 | 4,615 | 4,610 | 4,615 | +0.11% | 207,400 | 9616億407万 | +0.09% |
| 05/11 | （IR情報）15:30 株式併合、単元株式数の定めの廃止及び定款一部変更に関するお知らせ |
| 05/11 | 4,610 | 4,615 | 4,605 | 4,610 | 0% | 505,400 | 9605億6224万 | 0% |
| 05/08 | 4,610 | 4,610 | 4,605 | 4,610 | +0.11% | 178,600 | 9605億6224万 | +0.02% |
| 05/07 | 4,605 | 4,610 | 4,605 | 4,605 | 0% | 423,300 | 9595億2042万 | -0.09% |
| 05/01 | 4,605 | 4,615 | 4,605 | 4,605 | 0% | 785,400 | 9595億2042万 | -0.09% |
| 04/30 | 4,610 | 4,615 | 4,605 | 4,605 | 0% | 699,900 | 9595億2042万 | -0.07% |
| 04/28 | （5%ルール）日立リアルエステートパートナーズ（0%）日立製作所（0%） |
| 04/28 | 4,605 | 4,610 | 4,600 | 4,605 | -0.11% | 637,800 | 9595億2042万 | -0.04% |
| 04/27 | 4,605 | 4,610 | 4,600 | 4,610 | +0.22% | 390,400 | 9605億6224万 | +0.09% |
| 04/24 | （5%ルール）日立リアルエステートパートナーズ（0.12%）日立製作所（51.21%） |
| 04/24 | 4,605 | 4,610 | 4,600 | 4,600 | +0.22% | 1,378,900 | 9584億7859万 | +0.09% |
| 04/23 | 4,610 | 4,615 | 4,590 | 4,590 | -0.33% | 4,557,500 | 9563億9495万 | -0.04% |
| 04/22 | （IR情報）10:00 (訂正)「HCホールディングス(株)による当社株式に対する公開買付けの結果並びに親会社及び主要株主である筆頭株主の異動に関するお知らせ」添付資料の一部訂正 |
| 04/22 | 4,610 | 4,620 | 4,605 | 4,605 | -0.97% | 1,183,100 | 9595億2042万 | +0.44% |
| 04/21 | （5%ルール）HC HD（87.54%） |
| 04/21 | （5%ルール）HC HD（87.54%） |
| 04/21 | （IR情報）15:00 HCホールディングス株式会社による当社株式に対する公開買付けの結果並びに親会社及び主要株主である筆頭株主の異動に関するお知らせ |
| 04/21 | 4,615 | 4,795 | 4,615 | 4,650 | +0.87% | 276,500 | 9688億9684万 | +1.64% |
| 04/20 | 4,615 | 4,630 | 4,610 | 4,610 | -0.43% | 152,600 | 9605億6224万 | +0.99% |
| 04/17 | 4,610 | 4,630 | 4,600 | 4,630 | +0.11% | 300,600 | 9647億2954万 | +1.62% |
| 04/16 | 4,615 | 4,625 | 4,615 | 4,625 | +0.22% | 807,200 | 9636億8772万 | +1.69% |
| 04/15 | （IR情報）15:00 2020年3月期通期連結決算発表延期のお知らせ |
| 04/15 | 4,620 | 4,620 | 4,615 | 4,615 | -0.11% | 785,600 | 9616億407万 | +1.56% |
| 04/14 | 4,615 | 4,620 | 4,615 | 4,620 | 0% | 505,200 | 9626億4589万 | +1.72% |
| 04/13 | （IR情報）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 |
| 04/13 | 4,615 | 4,620 | 4,615 | 4,620 | +0.11% | 328,600 | 9626億4589万 | +1.78% |
| 04/10 | 4,615 | 4,620 | 4,610 | 4,615 | +0.11% | 617,500 | 9616億407万 | +1.72% |
| 04/09 | 4,615 | 4,620 | 4,610 | 4,610 | -0.11% | 724,300 | 9605億6224万 | +1.63% |
| 04/08 | 4,610 | 4,615 | 4,605 | 4,615 | +0.11% | 729,100 | 9616億407万 | +1.79% |
| 04/07 | 4,610 | 4,615 | 4,605 | 4,610 | +0.11% | 553,800 | 9605億6224万 | +1.72% |
| 04/06 | 4,605 | 4,615 | 4,600 | 4,605 | +0.11% | 809,100 | 9595億2042万 | +1.66% |
| 04/03 | 4,600 | 4,600 | 4,595 | 4,600 | 0% | 476,400 | 9584億7859万 | +1.59% |
| 04/02 | 4,585 | 4,605 | 4,585 | 4,600 | +0.33% | 1,114,900 | 9584億7859万 | +1.59% |
| 04/01 | 4,590 | 4,595 | 4,585 | 4,585 | -0.11% | 1,987,000 | 9553億5312万 | +1.26% |
| 03/31 | 4,595 | 4,600 | 4,590 | 4,590 | -0.11% | 996,100 | 9563億9495万 | +1.35% |
| 03/30 | 4,595 | 4,600 | 4,590 | 4,595 | -0.22% | 1,176,600 | 9574億3677万 | +1.43% |
| 03/27 | 4,595 | 4,605 | 4,595 | 4,605 | +0.33% | 1,694,700 | 9595億2042万 | +1.66% |
| 03/26 | 4,585 | 4,590 | 4,580 | 4,590 | +0.11% | 1,466,500 | 9563億9495万 | +1.32% |
| 03/25 | 4,580 | 4,595 | 4,580 | 4,585 | +0.22% | 1,627,200 | 9553億5312万 | +1.19% |
| 03/24 | 4,585 | 4,590 | 4,570 | 4,575 | +5.05% | 2,642,600 | 9532億6947万 | +0.95% |
| 03/23 | （IR情報）15:00 HCホールディングス株式会社による当社株式に対する公開買付けに関する意見表明のお知らせ |
| 03/23 | （5%ルール）ノムラインターナショナルピーエルシー(NOMURA IN…（1.3%）野村アセットマネジメント（1.5%）野村證券（1.58%） |
| 03/23 | 4,500 | 4,500 | 4,330 | 4,355 | -3.22% | 2,408,900 | 9074億2919万 | -3.93% |
| 03/19 | 4,455 | 4,535 | 4,450 | 4,500 | +2.04% | 2,954,400 | 9376億4210万 | -0.95% |
| 03/18 | 4,420 | 4,485 | 4,380 | 4,410 | +1.15% | 2,522,700 | 9188億8926万 | -3.03% |
| 03/17 | 4,355 | 4,370 | 4,285 | 4,360 | -1.02% | 2,811,900 | 9084億7102万 | -4.28% |
| 03/16 | 4,320 | 4,460 | 4,245 | 4,405 | +0.8% | 1,775,000 | 9178億4744万 | -3.5% |
| 03/13 | 4,370 | 4,420 | 4,215 | 4,370 | -1.58% | 3,034,100 | 9105億5466万 | -4.44% |
| 03/12 | 4,525 | 4,530 | 4,415 | 4,440 | -2.09% | 3,208,700 | 9251億4021万 | -3.1% |
| 03/11 | 4,540 | 4,560 | 4,525 | 4,535 | -0.22% | 1,020,600 | 9449億3488万 | -1.18% |
| 03/10 | 4,525 | 4,560 | 4,525 | 4,545 | -0.11% | 1,472,400 | 9470億1852万 | -1% |
| 03/09 | 4,560 | 4,570 | 4,550 | 4,550 | -0.66% | 1,744,700 | 9480億6035万 | -0.94% |
| 03/06 | 4,580 | 4,580 | 4,570 | 4,580 | 0% | 1,683,700 | 9543億1130万 | -0.33% |
| 03/05 | 4,580 | 4,580 | 4,575 | 4,580 | +0.22% | 564,000 | 9543億1130万 | -0.33% |
| 03/04 | 4,560 | 4,575 | 4,560 | 4,570 | +0.22% | 712,200 | 9522億2765万 | -0.57% |
| 03/03 | 4,570 | 4,575 | 4,560 | 4,560 | 0% | 869,800 | 9501億4400万 | -0.8% |
| 03/02 | 4,560 | 4,575 | 4,555 | 4,560 | +0.11% | 1,964,400 | 9501億4400万 | -0.83% |
| 02/28 | 4,605 | 4,610 | 4,475 | 4,555 | -1.09% | 4,323,300 | 9491億217万 | -0.98% |
| 02/27 | 4,610 | 4,615 | 4,605 | 4,605 | 0% | 1,079,900 | 9595億2042万 | +0.09% |
| 02/26 | 4,600 | 4,610 | 4,600 | 4,605 | 0% | 736,300 | 9595億2042万 | +0.11% |
| 02/25 | 4,605 | 4,610 | 4,595 | 4,605 | -0.11% | 2,828,600 | 9595億2042万 | +0.11% |
| 02/21 | 4,610 | 4,610 | 4,605 | 4,610 | +0.11% | 533,700 | 9605億6224万 | +0.24% |
| 02/20 | 4,610 | 4,615 | 4,605 | 4,605 | 0% | 521,500 | 9595億2042万 | +0.13% |
| 02/19 | 4,610 | 4,615 | 4,605 | 4,605 | 0% | 479,000 | 9595億2042万 | +0.15% |
| 02/18 | 4,605 | 4,610 | 4,605 | 4,605 | 0% | 324,000 | 9595億2042万 | +0.15% |
| 02/17 | 4,610 | 4,610 | 4,605 | 4,605 | -0.11% | 591,100 | 9595億2042万 | +0.17% |
| 02/14 | 4,610 | 4,615 | 4,605 | 4,610 | 0% | 747,700 | 9605億6224万 | +0.28% |
| 02/13 | 4,610 | 4,615 | 4,610 | 4,610 | 0% | 490,900 | 9605億6224万 | +0.3% |
| 02/12 | 4,610 | 4,610 | 4,600 | 4,610 | +0.22% | 1,293,000 | 9605億6224万 | +0.33% |
| 02/10 | 4,600 | 4,605 | 4,600 | 4,600 | -0.11% | 319,200 | 9584億7859万 | +0.13% |
| 02/07 | 4,600 | 4,610 | 4,600 | 4,605 | +0.11% | 845,700 | 9595億2042万 | +0.26% |
| 02/06 | （5%ルール）ノムラインターナショナルピーエルシー(NOMURA IN…（2.2%）野村アセットマネジメント（1.51%）野村證券（1.52%） |
| 02/06 | 4,600 | 4,605 | 4,600 | 4,600 | 0% | 456,800 | 9584億7859万 | +0.17% |
| 02/05 | 4,600 | 4,610 | 4,600 | 4,600 | 0% | 573,300 | 9584億7859万 | +0.2% |
| 02/04 | 4,595 | 4,605 | 4,595 | 4,600 | +0.11% | 843,100 | 9584億7859万 | +0.22% |
| 02/03 | 4,595 | 4,600 | 4,595 | 4,595 | 0% | 276,200 | 9574億3677万 | +0.11% |
| 01/31 | 4,595 | 4,600 | 4,590 | 4,595 | +0.11% | 609,000 | 9574億3677万 | +0.13% |
| 01/30 | 4,595 | 4,600 | 4,590 | 4,590 | -0.11% | 1,225,900 | 9563億9495万 | +0.04% |
| 01/29 | 4,595 | 4,600 | 4,595 | 4,595 | 0% | 990,600 | 9574億3677万 | +0.17% |
| 01/28 | （IR情報）15:00 会社分割および株式譲渡によるコンデンサ事業(小型フィルムコンデンサ事業を除く)等の譲渡に関するお知らせ |
| 01/28 | （IR情報）15:00 2020年3月期第3四半期決算短信〔IFRS〕(連結) |
| 01/28 | （IR情報）15:00 2020年3月期第3四半期決算説明資料 |
| 01/28 | 4,595 | 4,600 | 4,595 | 4,595 | 0% | 433,100 | 9574億3677万 | +0.64% |
| 01/27 | （IR情報）15:00 会社分割による樹脂材料関連3事業の連結子会社への事業承継に関するお知らせ |
| 01/27 | 4,595 | 4,600 | 4,595 | 4,595 | 0% | 447,300 | 9574億3677万 | +1.08% |
| 01/24 | 4,595 | 4,600 | 4,595 | 4,595 | 0% | 525,300 | 9574億3677万 | +1.57% |
| 01/23 | 4,590 | 4,600 | 4,590 | 4,595 | +0.11% | 621,300 | 9574億3677万 | +2.04% |
| 01/22 | 4,590 | 4,595 | 4,590 | 4,590 | 0% | 369,900 | 9563億9495万 | +2.41% |
