| 2021 |
| 01/18 | （IR情報）15:00 当社株式の上場廃止のお知らせ |
| 01/18 | 869 | 870 | 868 | 868 | 0% | 16,200 | 268億6894万 | +0.12% |
| 01/15 | 869 | 871 | 868 | 868 | -0.12% | 7,400 | 268億6894万 | +0.12% |
| 01/14 | 868 | 871 | 868 | 869 | +0.12% | 23,000 | 268億9989万 | +0.23% |
| 01/13 | 869 | 870 | 868 | 868 | -0.23% | 20,300 | 268億6894万 | +0.12% |
| 01/12 | 868 | 871 | 868 | 870 | +0.12% | 37,200 | 269億3085万 | +0.35% |
| 01/08 | 869 | 870 | 868 | 869 | +0.12% | 32,800 | 268億9989万 | +0.23% |
| 01/07 | 867 | 869 | 867 | 868 | 0% | 35,900 | 268億6894万 | +0.12% |
| 01/06 | 867 | 868 | 867 | 868 | +0.12% | 28,300 | 268億6894万 | +0.12% |
| 01/05 | 867 | 868 | 867 | 867 | 0% | 201,600 | 268億3798万 | 0% |
| 01/04 | 867 | 868 | 867 | 867 | 0% | 42,600 | 268億3798万 | 0% |
| 2020 |
| 12/30 | 867 | 869 | 867 | 867 | -0.12% | 162,900 | 268億3798万 | 0% |
| 12/29 | （IR情報）15:00 株式併合及び定款の一部変更に係る承認決議に関するお知らせ |
| 12/29 | 867 | 868 | 867 | 868 | +0.12% | 5,400 | 268億6894万 | +0.12% |
| 12/28 | 868 | 868 | 867 | 867 | 0% | 13,500 | 268億3798万 | 0% |
| 12/25 | 868 | 868 | 867 | 867 | 0% | 10,700 | 268億3798万 | 0% |
| 12/24 | 868 | 869 | 867 | 867 | 0% | 21,800 | 268億3798万 | 0% |
| 12/23 | 868 | 868 | 867 | 867 | 0% | 15,700 | 268億3798万 | 0% |
| 12/22 | （IR情報）15:00 人事異動に関するお知らせ |
| 12/22 | 867 | 868 | 867 | 867 | +0.12% | 25,100 | 268億3798万 | 0% |
| 12/21 | 866 | 867 | 866 | 866 | -0.23% | 8,400 | 268億703万 | -0.12% |
| 12/18 | 866 | 868 | 866 | 868 | +0.12% | 20,700 | 268億6894万 | +0.12% |
| 12/17 | 866 | 867 | 866 | 867 | -0.12% | 6,700 | 268億3798万 | 0% |
| 12/16 | 866 | 868 | 866 | 868 | +0.23% | 43,600 | 268億6894万 | +0.12% |
| 12/15 | 866 | 868 | 866 | 866 | 0% | 364,700 | 268億703万 | -0.12% |
| 12/14 | 866 | 867 | 866 | 866 | +0.12% | 13,200 | 268億703万 | -0.12% |
| 12/11 | 866 | 867 | 865 | 865 | -0.12% | 247,200 | 267億7607万 | -0.23% |
| 12/10 | 867 | 867 | 865 | 866 | 0% | 337,300 | 268億703万 | -0.12% |
| 12/09 | 866 | 867 | 866 | 866 | 0% | 8,000 | 268億703万 | -0.12% |
| 12/08 | 867 | 868 | 866 | 866 | -0.12% | 170,200 | 268億703万 | -0.12% |
| 12/07 | 867 | 868 | 866 | 867 | +0.12% | 109,900 | 268億3798万 | 0% |
| 12/04 | 867 | 867 | 866 | 866 | 0% | 213,800 | 268億703万 | -0.12% |
| 12/03 | 868 | 868 | 866 | 866 | -0.23% | 231,600 | 268億703万 | -0.23% |
| 12/02 | 867 | 868 | 867 | 868 | +0.12% | 13,000 | 268億6894万 | 0% |
| 12/01 | 867 | 868 | 867 | 867 | 0% | 27,500 | 268億3798万 | -0.12% |
| 11/30 | 866 | 867 | 866 | 867 | +0.35% | 99,500 | 268億3798万 | -0.12% |
| 11/27 | （IR情報）15:00 株式併合並びに単元株式数の定めの廃止及び定款の一部変更に関するお知らせ |
| 11/27 | （IR情報）15:00 自己株式の消却に関するお知らせ |
| 11/27 | 867 | 868 | 864 | 864 | -0.35% | 655,000 | 267億4512万 | -0.46% |
| 11/26 | 867 | 869 | 867 | 867 | 0% | 33,200 | 268億3798万 | -0.12% |
| 11/25 | 867 | 868 | 867 | 867 | 0% | 24,700 | 268億3798万 | -0.12% |
| 11/24 | 867 | 868 | 867 | 867 | +0.12% | 32,100 | 268億3798万 | -0.12% |
| 11/20 | 867 | 869 | 866 | 866 | -0.12% | 280,000 | 268億703万 | -0.23% |
| 11/19 | 867 | 869 | 867 | 867 | 0% | 44,000 | 268億3798万 | -0.12% |
| 11/18 | 867 | 868 | 867 | 867 | -0.12% | 21,900 | 268億3798万 | -0.12% |
| 11/17 | 868 | 869 | 867 | 868 | +0.12% | 54,700 | 268億6894万 | 0% |
| 11/16 | 868 | 869 | 867 | 867 | -0.12% | 120,100 | 268億3798万 | -0.12% |
| 11/13 | 868 | 869 | 868 | 868 | 0% | 42,000 | 268億6894万 | 0% |
| 11/12 | 869 | 870 | 868 | 868 | 0% | 32,700 | 268億6894万 | 0% |
| 11/11 | （IR情報）15:00 シー・ファイブ・エイト・ホールディングス株式会社による当社株券に対する公開買付けの結果並びに主要株主及びその他の関係会社の異動に関するお知らせ |
| 11/11 | 868 | 870 | 868 | 868 | 0% | 36,200 | 268億6894万 | 0% |
| 11/10 | 868 | 869 | 868 | 868 | +0.23% | 70,900 | 268億6894万 | 0% |
| 11/09 | 869 | 870 | 866 | 866 | -0.35% | 80,800 | 268億703万 | -0.23% |
| 11/06 | 869 | 870 | 869 | 869 | 0% | 73,100 | 268億9989万 | +0.12% |
| 11/05 | 870 | 870 | 869 | 869 | 0% | 136,800 | 268億9989万 | +0.12% |
| 11/04 | 869 | 870 | 869 | 869 | 0% | 84,000 | 268億9989万 | +0.12% |
| 11/02 | 869 | 871 | 869 | 869 | +0.12% | 173,400 | 268億9989万 | +0.12% |
| 10/30 | （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 |
| 10/30 | （IR情報）15:00 2020年12月期第3四半期決算短信〔日本基準〕(連結) |
| 10/30 | 869 | 870 | 868 | 868 | -0.12% | 239,300 | 268億6894万 | 0% |
| 10/29 | 869 | 871 | 869 | 869 | 0% | 75,400 | 268億9989万 | +0.12% |
| 10/28 | 869 | 870 | 869 | 869 | 0% | 45,300 | 268億9989万 | +0.12% |
| 10/27 | 869 | 870 | 869 | 869 | 0% | 36,500 | 268億9989万 | +0.12% |
| 10/26 | 869 | 870 | 868 | 869 | +0.12% | 86,300 | 268億9989万 | +0.12% |
| 10/23 | 868 | 870 | 868 | 868 | 0% | 53,000 | 268億6894万 | 0% |
| 10/22 | 868 | 869 | 868 | 868 | -0.12% | 45,600 | 268億6894万 | 0% |
| 10/21 | 869 | 869 | 868 | 869 | +0.12% | 50,800 | 268億9989万 | +0.12% |
| 10/20 | 868 | 869 | 868 | 868 | 0% | 53,200 | 268億6894万 | 0% |
| 10/19 | 868 | 869 | 868 | 868 | 0% | 59,300 | 268億6894万 | 0% |
| 10/16 | 868 | 869 | 867 | 868 | +0.12% | 130,000 | 268億6894万 | 0% |
| 10/15 | 868 | 869 | 867 | 867 | 0% | 183,600 | 268億3798万 | -0.12% |
| 10/14 | 868 | 869 | 867 | 867 | 0% | 164,300 | 268億3798万 | -0.12% |
| 10/13 | 868 | 869 | 867 | 867 | 0% | 355,400 | 268億3798万 | 0% |
| 10/12 | 868 | 868 | 867 | 867 | -0.12% | 96,800 | 268億3798万 | 0% |
| 10/09 | 868 | 869 | 867 | 868 | -0.12% | 81,000 | 268億6894万 | +0.12% |
| 10/08 | 868 | 869 | 867 | 869 | +0.23% | 242,300 | 268億9989万 | +0.23% |
| 10/07 | 868 | 868 | 867 | 867 | 0% | 213,100 | 268億3798万 | 0% |
| 10/06 | 868 | 868 | 867 | 867 | -0.12% | 29,400 | 268億3798万 | 0% |
| 10/05 | 867 | 868 | 867 | 868 | +0.12% | 72,500 | 268億6894万 | +0.12% |
| 10/02 | 868 | 868 | 867 | 867 | -0.12% | 202,400 | 268億3798万 | 0% |
| 09/30 | 868 | 869 | 867 | 868 | 0% | 333,600 | 268億6894万 | +0.12% |
| 09/29 | 868 | 869 | 868 | 868 | 0% | 268,100 | 268億6894万 | +0.12% |
| 09/28 | （IR情報）17:30 シー・ファイブ・エイト・ホールディングス株式会社による当社株券に対する公開買付けに関する意見表明等に関するお知らせ |
| 09/28 | 868 | 869 | 867 | 868 | +0.12% | 325,600 | 268億6894万 | +0.12% |
| 09/25 | 868 | 868 | 867 | 867 | 0% | 380,300 | 268億3798万 | +0.12% |
| 09/24 | 868 | 869 | 867 | 867 | -0.12% | 256,200 | 268億3798万 | 0% |
| 09/23 | 869 | 869 | 868 | 868 | 0% | 200,400 | 268億6894万 | +1.64% |
| 09/18 | 869 | 869 | 868 | 868 | 0% | 99,200 | 268億6894万 | +3.46% |
| 09/17 | 869 | 869 | 868 | 868 | 0% | 140,200 | 268億6894万 | +5.85% |
| 09/16 | 869 | 869 | 868 | 868 | 0% | 128,600 | 268億6894万 | +8.23% |
| 09/15 | 869 | 869 | 868 | 868 | 0% | 112,000 | 268億6894万 | +10.86% |
| 09/14 | 869 | 869 | 867 | 868 | +0.12% | 288,500 | 268億6894万 | +13.46% |
| 09/11 | 868 | 869 | 867 | 867 | 0% | 330,400 | 268億3798万 | +16.22% |
| 09/10 | 868 | 868 | 867 | 867 | 0% | 211,100 | 268億3798万 | +19.09% |
| 09/09 | 867 | 868 | 867 | 867 | -0.12% | 289,400 | 268億3798万 | +22.28% |
| 09/08 | 866 | 868 | 866 | 868 | +0.23% | 806,800 | 268億6894万 | +25.98% |
| 09/07 | 866 | 867 | 866 | 866 | 0% | 108,000 | 268億703万 | +29.45% |
| 09/04 | 866 | 867 | 866 | 866 | 0% | 561,200 | 268億703万 | +33.64% |
| 09/03 | 866 | 867 | 865 | 866 | +0.12% | 296,500 | 268億703万 | +37.68% |
| 09/02 | 866 | 866 | 865 | 865 | 0% | 473,600 | 267億7607万 | +41.57% |
| 09/01 | 865 | 866 | 865 | 865 | 0% | 558,300 | 267億7607万 | +45.87% |
| 08/31 | 865 | 866 | 865 | 865 | 0% | 657,600 | 267億7607万 | +50.17% |
| 08/28 | 865 | 866 | 865 | 865 | 0% | 1,004,800 | 267億7607万 | +55.02% |
| 08/27 | 865 | 866 | 865 | 865 | 0% | 567,200 | 267億7607万 | +59.89% |
| 08/26 | 865 | 866 | 865 | 865 | 0% | 663,000 | 267億7607万 | +65.39% |
| 08/25 | 865 | 866 | 865 | 865 | 0% | 538,900 | 267億7607万 | +70.95% |
| 08/24 | 866 | 866 | 865 | 865 | -0.12% | 964,100 | 267億7607万 | +77.25% |
| 08/21 | 867 | 867 | 866 | 866 | -0.12% | 1,287,400 | 268億703万 | +83.86% |
| 08/20 | 868 | 868 | 867 | 867 | -0.12% | 924,100 | 268億3798万 | +91.39% |
| 08/14 | （IR情報）17:00 シー・ファイブ・エイト・ホールディングス株式会社によるソフトブレーン株式会社普通株式(証券コード4779)に対する公開買付けに関するお知らせ |
| 08/14 | （IR情報）17:00 シー・ファイブ・エイト・ホールディングス株式会社による当社株券に対する公開買付けの開始予定に関する意見表明のお知らせ |
| 08/14 | （IR情報）17:00 2020年12月期通期連結業績予想及び期末配当予想(無配)に関するお知らせ |
