| 2025 |
| 11/27 | (IR情報)15:30 当社株式の上場廃止に関するお知らせ |
| 11/27 | 1,822 | 1,823 | 1,822 | 1,822 | 0% | 3,300 | 41億5416万 | -0.22% |
| 11/26 | 1,823 | 1,823 | 1,822 | 1,822 | -0.05% | 2,400 | 41億5416万 | -0.22% |
| 11/25 | 1,823 | 1,824 | 1,823 | 1,823 | +0.05% | 1,400 | 41億5644万 | -0.22% |
| 11/21 | 1,823 | 1,823 | 1,822 | 1,822 | -0.05% | 5,800 | 41億5416万 | -0.27% |
| 11/20 | 1,824 | 1,828 | 1,823 | 1,823 | 0% | 2,100 | 41億5644万 | -0.22% |
| 11/19 | 1,823 | 1,823 | 1,823 | 1,823 | -0.16% | 700 | 41億5644万 | -0.22% |
| 11/18 | 1,827 | 1,827 | 1,826 | 1,826 | -0.05% | 1,000 | 41億6328万 | -0.05% |
| 11/17 | 1,827 | 1,827 | 1,827 | 1,827 | 0% | 1,000 | 41億6556万 | 0% |
| 11/14 | 1,830 | 1,830 | 1,827 | 1,827 | -0.22% | 600 | 41億6556万 | 0% |
| 11/13 | (IR情報)15:30 通期連結業績予想と実績の差異及び特別損失(減損損失)の計上に関するお知らせ |
| 11/13 | (IR情報)15:30 2025年9月期決算短信〔日本基準〕(連結) |
| 11/13 | 1,828 | 1,831 | 1,827 | 1,831 | +0.16% | 4,000 | 41億7468万 | +0.22% |
| 11/12 | 1,826 | 1,828 | 1,826 | 1,828 | +0.11% | 2,100 | 41億6784万 | +0.05% |
| 11/11 | 1,826 | 1,826 | 1,826 | 1,826 | -0.05% | 2,800 | 41億6328万 | -0.05% |
| 11/10 | (IR情報)15:30 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の承認決議に関するお知らせ |
| 11/10 | 1,827 | 1,828 | 1,827 | 1,827 | -0.05% | 1,500 | 41億6556万 | 0% |
| 11/07 | 1,828 | 1,828 | 1,828 | 1,828 | 0% | 2,200 | 41億6784万 | +0.11% |
| 11/06 | 1,826 | 1,828 | 1,826 | 1,828 | +0.16% | 800 | 41億6784万 | +0.11% |
| 11/05 | 1,824 | 1,827 | 1,824 | 1,825 | +0.05% | 2,400 | 41億6100万 | -0.05% |
| 11/04 | 1,826 | 1,826 | 1,824 | 1,824 | +0.05% | 400 | 41億5872万 | -0.11% |
| 10/31 | 1,824 | 1,824 | 1,822 | 1,823 | -0.27% | 1,500 | 41億5644万 | -0.16% |
| 10/30 | 1,828 | 1,828 | 1,828 | 1,828 | 0% | 600 | 41億6784万 | +0.16% |
| 10/29 | 1,828 | 1,829 | 1,828 | 1,828 | 0% | 600 | 41億6784万 | +0.16% |
| 10/28 | 1,828 | 1,828 | 1,828 | 1,828 | 0% | 3,100 | 41億6784万 | +0.16% |
| 10/27 | 1,828 | 1,829 | 1,828 | 1,828 | 0% | 1,600 | 41億6784万 | +0.22% |
| 10/23 | 1,828 | 1,828 | 1,828 | 1,828 | 0% | 200 | 41億6784万 | +0.22% |
| 10/22 | 1,828 | 1,828 | 1,828 | 1,828 | 0% | 1,100 | 41億6784万 | +0.16% |
| 10/21 | 1,828 | 1,829 | 1,828 | 1,828 | 0% | 800 | 41億6784万 | +0.16% |
| 10/20 | 1,829 | 1,829 | 1,828 | 1,828 | -0.05% | 1,700 | 41億6784万 | +0.16% |
| 10/17 | 1,828 | 1,829 | 1,828 | 1,829 | +0.11% | 7,100 | 41億7012万 | +0.16% |
| 10/16 | 1,827 | 1,827 | 1,827 | 1,827 | +0.05% | 600 | 41億6556万 | +0.05% |
| 10/15 | 1,828 | 1,828 | 1,826 | 1,826 | -0.11% | 1,700 | 41億6328万 | 0% |
| 10/14 | 1,826 | 1,828 | 1,826 | 1,828 | 0% | 3,000 | 41億6784万 | +0.05% |
| 10/10 | 1,824 | 1,830 | 1,824 | 1,828 | +0.11% | 27,100 | 41億6784万 | +0.05% |
| 10/09 | (IR情報)15:30 自己株式の消却に関するお知らせ |
| 10/09 | (IR情報)15:30 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 |
| 10/09 | 1,826 | 1,827 | 1,826 | 1,826 | 0% | 5,200 | 41億6328万 | -0.11% |
| 10/08 | 1,826 | 1,826 | 1,824 | 1,826 | 0% | 800 | 41億6328万 | -0.11% |
| 10/07 | 1,824 | 1,826 | 1,824 | 1,826 | +0.11% | 2,400 | 41億6328万 | -0.16% |
| 10/06 | 1,824 | 1,826 | 1,824 | 1,824 | +0.11% | 2,400 | 41億5872万 | -0.27% |
| 10/03 | 1,822 | 1,824 | 1,820 | 1,822 | -0.05% | 18,400 | 41億5416万 | -0.44% |
| 10/02 | 1,823 | 1,825 | 1,822 | 1,823 | -0.05% | 2,800 | 41億5644万 | -0.38% |
| 10/01 | 1,822 | 1,824 | 1,821 | 1,824 | +0.11% | 3,700 | 41億5872万 | -0.38% |
| 09/30 | 1,822 | 1,823 | 1,821 | 1,822 | +0.05% | 5,000 | 41億5416万 | -0.49% |
| 09/29 | 1,820 | 1,821 | 1,818 | 1,821 | +0.11% | 45,600 | 41億5188万 | -0.6% |
| 09/26 | 1,820 | 1,821 | 1,819 | 1,819 | -0.05% | 6,600 | 41億4732万 | -0.76% |
| 09/25 | 1,817 | 1,821 | 1,817 | 1,820 | +0.17% | 5,800 | 41億4960万 | -0.87% |
| 09/24 | 1,817 | 1,821 | 1,816 | 1,817 | 0% | 18,300 | 41億4276万 | -1.09% |
| 09/22 | 1,818 | 1,822 | 1,805 | 1,817 | -0.16% | 45,300 | 41億4276万 | -1.14% |
| 09/19 | (5%ルール)コーアツ工業共栄会理事長水迫繁一(0%) |
| 09/19 | (5%ルール)植村組(8.93%)日本地下技術(5.59%)南日本運輸建設(6.51%)ガイアテック(8.93%)ウエムラ(53.24%) |
| 09/19 | (IR情報)15:30 株式会社ウエムラ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、主要株主及び主要株主である筆頭株主の異動に関するお知らせ |
| 09/19 | 1,821 | 1,823 | 1,819 | 1,820 | +0.05% | 3,800 | 41億4960万 | -0.98% |
| 09/18 | 1,828 | 1,829 | 1,819 | 1,819 | -0.66% | 30,900 | 41億4732万 | -1.09% |
| 09/17 | 1,832 | 1,834 | 1,830 | 1,831 | -0.33% | 29,800 | 41億7468万 | -0.49% |
| 09/16 | 1,835 | 1,837 | 1,834 | 1,837 | +0.16% | 39,900 | 41億8836万 | -0.22% |
| 09/12 | 1,834 | 1,836 | 1,831 | 1,834 | -0.16% | 27,300 | 41億8152万 | -0.43% |
| 09/11 | 1,836 | 1,837 | 1,835 | 1,837 | +0.05% | 14,000 | 41億8836万 | -0.33% |
| 09/10 | 1,835 | 1,836 | 1,835 | 1,836 | 0% | 5,400 | 41億8608万 | -0.43% |
| 09/09 | (5%ルール)ガイアテック(8.93%) |
| 09/09 | 1,837 | 1,838 | 1,835 | 1,836 | -0.05% | 33,900 | 41億8608万 | -0.22% |
| 09/08 | 1,837 | 1,839 | 1,837 | 1,837 | -0.11% | 9,900 | 41億8836万 | +0.22% |
| 09/05 | (5%ルール)ガイアテック(8.93%) |
| 09/05 | (IR情報)15:30 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 |
| 09/05 | 1,840 | 1,842 | 1,837 | 1,839 | -0.05% | 7,300 | 41億9292万 | +0.71% |
| 09/04 | 1,837 | 1,845 | 1,837 | 1,840 | +0.22% | 36,600 | 41億9520万 | +1.21% |
| 09/03 | 1,837 | 1,838 | 1,835 | 1,836 | -0.11% | 20,500 | 41億8608万 | +1.44% |
| 09/02 | 1,838 | 1,839 | 1,836 | 1,838 | -0.05% | 10,800 | 41億9064万 | +2% |
| 09/01 | 1,839 | 1,840 | 1,837 | 1,839 | +0.05% | 9,800 | 41億9292万 | +2.51% |
| 08/29 | 1,837 | 1,840 | 1,836 | 1,838 | 0% | 16,100 | 41億9064万 | +2.91% |
| 08/28 | 1,838 | 1,839 | 1,836 | 1,838 | 0% | 10,100 | 41億9064万 | +3.37% |
| 08/27 | 1,837 | 1,839 | 1,835 | 1,838 | -0.05% | 32,400 | 41億9064万 | +3.9% |
| 08/26 | 1,840 | 1,840 | 1,837 | 1,839 | 0% | 21,500 | 41億9292万 | +4.43% |
| 08/25 | 1,843 | 1,847 | 1,839 | 1,839 | -0.27% | 16,000 | 41億9292万 | +4.91% |
| 08/22 | 1,845 | 1,848 | 1,844 | 1,844 | +0.11% | 11,100 | 42億432万 | +5.86% |
| 08/21 | (5%ルール)日本地下技術(5.59%) |
| 08/21 | (5%ルール)南日本運輸建設(6.51%) |
| 08/21 | (IR情報)14:30 株主による臨時株主総会の招集請求に対する当社の見解に関するお知らせ |
| 08/21 | 1,884 | 1,900 | 1,840 | 1,842 | -2.23% | 67,400 | 41億9976万 | +6.41% |
| 08/20 | 1,856 | 1,900 | 1,850 | 1,884 | +2.39% | 79,800 | 42億9552万 | +9.53% |
| 08/19 | (IR情報)15:30 株主による臨時株主総会の招集請求に関するお知らせ |
| 08/19 | 1,839 | 1,841 | 1,839 | 1,840 | 0% | 44,500 | 41億9520万 | +7.79% |
| 08/18 | 1,840 | 1,841 | 1,839 | 1,840 | -0.05% | 29,900 | 41億9520万 | +8.49% |
| 08/15 | 1,841 | 1,846 | 1,840 | 1,841 | 0% | 18,400 | 41億9748万 | +9.19% |
| 08/14 | 1,841 | 1,847 | 1,840 | 1,841 | -0.16% | 23,700 | 41億9748万 | +9.78% |
| 08/13 | (IR情報)15:30 2025年9月期第3四半期決算短信〔日本基準〕(連結) |
| 08/13 | 1,854 | 1,860 | 1,836 | 1,844 | -0.43% | 48,700 | 42億432万 | +10.75% |
| 08/12 | (5%ルール)南日本運輸建設(6.51%) |
| 08/12 | (5%ルール)南日本運輸建設(6.51%) |
| 08/12 | (5%ルール)日本地下技術(5.59%) |
| 08/12 | (5%ルール)日本地下技術(5.59%) |
| 08/12 | (5%ルール)ガイアテック(8.93%) |
| 08/12 | (5%ルール)植村組(8.93%) |
| 08/12 | (5%ルール)植村組(8.93%) |
| 08/12 | (5%ルール)植村組(8.93%) |
| 08/12 | (5%ルール)植村組(14.86%) |
| 08/12 | (5%ルール)植村組(14.86%) |
| 08/12 | 1,851 | 1,854 | 1,851 | 1,852 | 0% | 13,700 | 42億2256万 | +12.11% |
| 08/08 | 1,857 | 1,859 | 1,852 | 1,852 | -0.75% | 12,800 | 42億2256万 | +13% |
| 08/07 | 1,861 | 1,868 | 1,856 | 1,866 | -0.21% | 34,600 | 42億5448万 | +14.69% |
| 08/06 | 1,870 | 1,885 | 1,861 | 1,870 | +8.28% | 111,300 | 42億6360万 | +15.79% |
| 08/05 | (IR情報)15:30 2025年9月期期末配当予想の修正(無配)及び株主優待制度の廃止に関するお知らせ |
| 08/05 | (IR情報)15:30 株式会社ウエムラによるコーアツ工業株式会社(証券コード:1743)に対する公開買付けの開始に関するお知らせ |
| 08/05 | (IR情報)15:30 株式会社ウエムラによる当社株式に対する公開買付けに関する賛同の意見表明及び応募推奨のお知らせ |
| 08/05 | (IR情報)15:30 2025年9月期第3四半期決算速報値(連結)に関するお知らせ |
| 08/05 | 1,659 | 1,748 | 1,659 | 1,727 | +4.1% | 7,900 | 39億3756万 | +7.8% |
| 08/04 | 1,654 | 1,659 | 1,650 | 1,659 | +0.06% | 3,400 | 37億8252万 | +4.01% |
| 08/01 | 1,643 | 1,658 | 1,640 | 1,658 | +0.91% | 1,800 | 37億8024万 | +4.28% |
| 07/31 | 1,650 | 1,656 | 1,607 | 1,643 | -0.42% | 5,900 | 37億4604万 | +3.72% |
| 07/30 | 1,632 | 1,650 | 1,629 | 1,650 | +1.16% | 1,800 | 37億6200万 | +4.43% |
| 07/29 | (5%ルール)コーアツ工業共栄会理事長水迫繁一(8.11%) |
| 07/29 | 1,650 | 1,658 | 1,626 | 1,631 | -0.37% | 3,100 | 37億1868万 | +3.42% |
| 07/28 | 1,637 | 1,643 | 1,634 | 1,637 | +0.12% | 1,400 | 37億3236万 | +4.07% |
| 07/25 | 1,635 | 1,649 | 1,604 | 1,635 | 0% | 4,300 | 37億2780万 | +4.14% |
| 07/24 | 1,631 | 1,664 | 1,631 | 1,635 | +0.55% | 5,100 | 37億2780万 | +4.34% |
| 07/23 | 1,628 | 1,628 | 1,616 | 1,626 | +0.25% | 1,800 | 37億728万 | +3.96% |
| 07/22 | 1,637 | 1,641 | 1,614 | 1,622 | -0.92% | 4,400 | 36億9816万 | +3.97% |
| 07/18 | 1,573 | 1,646 | 1,573 | 1,637 | +4.13% | 8,400 | 37億3236万 | +5.14% |
| 07/17 | 1,570 | 1,580 | 1,570 | 1,572 | +0.13% | 1,500 | 35億8416万 | +1.22% |
| 07/16 | 1,567 | 1,575 | 1,556 | 1,570 | +0.19% | 2,800 | 35億7960万 | +1.09% |
| 07/15 | 1,570 | 1,570 | 1,561 | 1,567 | +0.32% | 1,100 | 35億7276万 | +0.9% |
| 07/14 | 1,580 | 1,580 | 1,550 | 1,562 | -0.76% | 2,000 | 35億6136万 | +0.58% |
| 07/11 | 1,570 | 1,574 | 1,560 | 1,574 | -0.69% | 5,000 | 35億8872万 | +1.35% |
| 07/10 | 1,599 | 1,600 | 1,560 | 1,585 | -0.88% | 3,800 | 36億1380万 | +2.13% |
| 07/09 | 1,547 | 1,599 | 1,534 | 1,599 | +3.83% | 4,000 | 36億4572万 | +3.16% |
| 07/08 | 1,545 | 1,545 | 1,535 | 1,540 | +0.46% | 1,700 | 35億1120万 | -0.45% |
| 07/07 | 1,544 | 1,544 | 1,531 | 1,533 | -0.13% | 1,600 | 34億9524万 | -1.03% |
| 07/04 | 1,540 | 1,547 | 1,523 | 1,535 | -0.39% | 2,400 | 34億9980万 | -1.1% |
| 07/03 | 1,574 | 1,574 | 1,480 | 1,541 | -1.97% | 8,000 | 35億1348万 | -0.84% |
| 07/02 | 1,553 | 1,572 | 1,525 | 1,572 | +1.29% | 3,600 | 35億8416万 | +1.09% |
| 07/01 | 1,526 | 1,579 | 1,521 | 1,552 | +0.78% | 4,900 | 35億3856万 | -0.13% |