| 2026 |
| 10/02 | 1,882 | 1,895 | 1,863 | 1,867 | -1.74% | 52,900 | - | -6.13% |
| 10/01 | 1,899 | 1,906 | 1,882 | 1,900 | -0.21% | 45,000 | - | -4.86% |
| 09/30 | 1,903 | 1,920 | 1,881 | 1,904 | -1.5% | 96,600 | - | -4.94% |
| 09/30 | (空売り報告)モルガン・スタンレーMUFG証券 139,710株(0.5%)再IN |
| 09/29 | 1,974 | 1,989 | 1,918 | 1,933 | -2.86% | 67,200 | - | -3.74% |
| 09/28 | 2,013 | 2,023 | 1,983 | 1,990 | -0.95% | 46,900 | - | -1.19% |
| 09/25 | 2,021 | 2,035 | 1,999 | 2,009 | -1.37% | 47,000 | - | -0.45% |
| 09/24 | 2,007 | 2,044 | 2,004 | 2,037 | +1.85% | 57,600 | - | +0.59% |
| 09/18 | 2,028 | 2,050 | 2,000 | 2,000 | -2.01% | 65,900 | - | -1.62% |
| 09/17 | 2,003 | 2,050 | 2,003 | 2,041 | +1.9% | 51,300 | - | 0% |
| 09/16 | 1,982 | 2,012 | 1,973 | 2,003 | +0.5% | 26,100 | - | -2.05% |
| 09/15 | 1,965 | 2,025 | 1,960 | 1,993 | 0% | 50,500 | - | -2.73% |
| 09/15 | (空売り報告)Barclays Capital Securities Ltd 248,602株(0.89%)-0.02% |
| 09/14 | 1,991 | 2,050 | 1,985 | 1,993 | -0.6% | 48,100 | - | -3.35% |
| 09/11 | 1,977 | 2,032 | 1,972 | 2,005 | +0.5% | 77,800 | - | -3.28% |
| 09/11 | (空売り報告)Barclays Capital Securities Ltd 255,102株(0.91%)+0.07% |
| 09/10 | 1,930 | 2,012 | 1,918 | 1,995 | +1.79% | 76,300 | - | -4.13% |
| 09/09 | 1,935 | 1,971 | 1,927 | 1,960 | +0.98% | 38,700 | - | -6.09% |
| 09/09 | (空売り報告)Barclays Capital Securities Ltd 235,502株(0.84%)+0.15% |
| 09/08 | 1,961 | 1,989 | 1,941 | 1,941 | -1.02% | 53,700 | - | -7.22% |
| 09/08 | (空売り報告)Barclays Capital Securities Ltd 192,902株(0.69%)-0.03% |
| 09/07 | (IR情報)15:30 株式会社ミダックホールディングス、テラレムグループ株式会社、株式会社富山環境整備による廃棄物分野における業務提携に関するお知らせ |
| 09/07 | 1,949 | 1,973 | 1,941 | 1,961 | -0.91% | 34,700 | - | -6.62% |
| 09/04 | 1,938 | 1,985 | 1,924 | 1,979 | +2.12% | 42,100 | - | -6.16% |
| 09/03 | 1,927 | 1,948 | 1,918 | 1,938 | +1.36% | 61,000 | - | -8.54% |
| 09/03 | (空売り報告)Barclays Capital Securities Ltd 200,102株(0.72%)+0.03% |
| 09/02 | 1,982 | 1,982 | 1,912 | 1,912 | -4.45% | 83,600 | - | -10.36% |
| 09/02 | (空売り報告)Barclays Capital Securities Ltd 193,702株(0.69%)-0.01% |
| 09/01 | 2,028 | 2,048 | 2,000 | 2,001 | -2.29% | 69,900 | - | -6.71% |
| 08/31 | 2,059 | 2,081 | 2,018 | 2,048 | -0.53% | 61,000 | - | -4.97% |
| 08/28 | 2,100 | 2,120 | 2,053 | 2,059 | -1.95% | 51,000 | - | -4.68% |
| 08/27 | 2,112 | 2,140 | 2,095 | 2,100 | -2.87% | 44,100 | - | -3% |
| 08/27 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 136,951株(0.49%)-0.1%義務消失 |
| 08/26 | 2,035 | 2,259 | 2,035 | 2,162 | +5.46% | 171,000 | - | -0.28% |
| 08/26 | (空売り報告)Barclays Capital Securities Ltd 195,602株(0.7%)+0.03% |
| 08/25 | 2,072 | 2,072 | 2,031 | 2,050 | -0.29% | 30,300 | - | -5.49% |
| 08/24 | 2,112 | 2,112 | 2,024 | 2,056 | +0.78% | 39,400 | - | -5.47% |
| 08/21 | 2,125 | 2,125 | 2,029 | 2,040 | -1.88% | 39,600 | - | -6.42% |
| 08/21 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 166,351株(0.59%)-0.08% |
| 08/20 | 2,100 | 2,138 | 2,000 | 2,079 | -0.95% | 209,600 | - | -4.81% |
| 08/20 | (空売り報告)Barclays Capital Securities Ltd 186,402株(0.67%)-0.08% |
| 08/19 | 2,146 | 2,149 | 2,086 | 2,099 | -3.58% | 35,700 | - | -3.98% |
| 08/18 | 2,250 | 2,270 | 2,170 | 2,177 | -2.16% | 59,300 | - | -0.55% |
| 08/18 | (空売り報告)モルガン・スタンレーMUFG証券 138,010株(0.49%)-0.06%義務消失 |
| 08/17 | 2,146 | 2,241 | 2,137 | 2,225 | +1.32% | 50,900 | - | +1.69% |
| 08/14 | 2,169 | 2,230 | 2,145 | 2,196 | +1.71% | 70,300 | - | +0.6% |
| 08/14 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 187,551株(0.67%)-0.11% |
| 08/13 | 2,156 | 2,168 | 2,103 | 2,159 | +2.52% | 124,800 | - | -0.96% |
| 08/12 | 2,271 | 2,271 | 2,101 | 2,106 | -9.26% | 131,800 | - | -3.35% |
| 08/10 | (IR情報)15:30 2027年3月期第1四半期決算説明資料 |
| 08/10 | (IR情報)15:30 2027年3月期第1四半期決算短信[日本基準](連結) |
| 08/10 | 2,266 | 2,332 | 2,226 | 2,321 | +3.02% | 72,200 | - | +6.47% |
| 08/10 | (空売り報告)モルガン・スタンレーMUFG証券 153,810株(0.55%)再IN |
| 08/07 | 2,192 | 2,253 | 2,192 | 2,253 | +2.22% | 28,700 | - | +3.82% |
| 08/06 | 2,122 | 2,213 | 2,122 | 2,204 | +2.42% | 47,800 | - | +1.9% |
| 08/05 | 2,088 | 2,168 | 2,088 | 2,152 | +3.07% | 35,500 | - | -0.14% |
| 08/05 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 218,651株(0.78%)-0.02% |
| 08/04 | 2,110 | 2,132 | 2,084 | 2,088 | -1.65% | 29,800 | - | -2.88% |
| 08/03 | 2,158 | 2,189 | 2,112 | 2,123 | -3.1% | 50,900 | - | -1.12% |
| 08/03 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 222,851株(0.8%)+0.01% |
| 07/31 | 2,226 | 2,226 | 2,136 | 2,191 | -1.53% | 30,600 | - | +2.34% |
| 07/30 | 2,253 | 2,279 | 2,216 | 2,225 | -3.13% | 75,700 | - | +4.46% |
| 07/29 | 2,237 | 2,297 | 2,215 | 2,297 | +3.7% | 84,100 | - | +8.45% |
| 07/29 | (空売り報告)Diversified Select Opportunities, LLC 193,300株(0.69%)-0.01% |
| 07/29 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 219,651株(0.79%)-0.01% |
| 07/28 | 2,242 | 2,254 | 2,213 | 2,215 | -1.2% | 19,200 | - | +5.33% |
| 07/27 | 2,199 | 2,251 | 2,199 | 2,242 | +2.89% | 32,000 | - | +7.17% |
| 07/24 | (IR情報)15:30 譲渡制限付株式報酬としての自己株式の処分の割当完了に関するお知らせ |
| 07/24 | 2,167 | 2,190 | 2,147 | 2,179 | 0% | 24,400 | - | +4.81% |
| 07/23 | 2,200 | 2,200 | 2,120 | 2,179 | -0.41% | 26,200 | - | +5.21% |
| 07/22 | 2,204 | 2,205 | 2,154 | 2,188 | +0.23% | 30,700 | - | +6.11% |
| 07/21 | 2,203 | 2,204 | 2,168 | 2,183 | -0.46% | 31,000 | - | +6.28% |
| 07/17 | 2,174 | 2,196 | 2,155 | 2,193 | +0.87% | 31,100 | - | +7.18% |
| 07/16 | 2,161 | 2,188 | 2,131 | 2,174 | +0.88% | 42,200 | - | +6.78% |
| 07/16 | (空売り報告)Barclays Capital Securities Ltd 211,002株(0.75%)+0.15% |
| 07/15 | 2,133 | 2,163 | 2,130 | 2,155 | +0.84% | 29,400 | - | +6.21% |
| 07/14 | (IR情報)16:00 株式会社ミダックと函南町は「地震等大規模災害時における災害廃棄物の処理等に関する協定書」を締結しました |
| 07/14 | 2,162 | 2,166 | 2,125 | 2,137 | -0.84% | 24,900 | - | +5.53% |
| 07/14 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 224,151株(0.8%)+0.01% |
| 07/13 | 2,178 | 2,203 | 2,151 | 2,155 | +0.33% | 33,500 | - | +6.74% |
| 07/13 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 221,251株(0.79%)-0.01% |
| 07/10 | (IR情報)10:00 株式会社ミダックと富士宮市は「緊急時における富士宮市の可燃ごみ処理に関する協定」を締結しました |
| 07/10 | 2,135 | 2,168 | 2,117 | 2,148 | +1.61% | 32,800 | - | +6.71% |
| 07/09 | 2,116 | 2,135 | 2,103 | 2,114 | -0.66% | 25,600 | - | +5.28% |
| 07/08 | 2,128 | 2,154 | 2,128 | 2,128 | 0% | 27,600 | - | +6.19% |
| 07/07 | 2,140 | 2,157 | 2,102 | 2,128 | +0.38% | 38,300 | - | +6.45% |
| 07/06 | 2,100 | 2,130 | 2,099 | 2,120 | +1.68% | 35,100 | - | +6.27% |
| 07/03 | 2,065 | 2,113 | 2,041 | 2,085 | +1.07% | 44,800 | - | +4.56% |
| 07/02 | 2,043 | 2,090 | 2,037 | 2,063 | +3% | 35,600 | - | +3.36% |
| 07/01 | 2,048 | 2,048 | 1,995 | 2,003 | -1.38% | 33,300 | - | +0.2% |
| 06/30 | 2,030 | 2,056 | 2,005 | 2,031 | +0.74% | 49,700 | - | +1.3% |
| 06/29 | 2,008 | 2,026 | 1,984 | 2,016 | +2.02% | 36,600 | - | +0.35% |
| 06/26 | (IR情報)15:30 執行役員制度の導入に関するお知らせ |
| 06/26 | (IR情報)15:30 譲渡制限付株式報酬としての自己株式の処分に関するお知らせ |
| 06/26 | (IR情報)10:00 既存管理型最終処分場(大平興産株式会社)における増量計画に関するお知らせ |
| 06/26 | 1,951 | 1,987 | 1,930 | 1,976 | +3.4% | 30,000 | - | -1.98% |
| 06/25 | 1,960 | 1,960 | 1,900 | 1,911 | -0.47% | 37,400 | - | -5.77% |
| 06/24 | 1,913 | 1,958 | 1,912 | 1,920 | -0.31% | 40,700 | - | -5.84% |
| 06/23 | 1,920 | 1,936 | 1,892 | 1,926 | -0.52% | 52,400 | - | -5.96% |
| 06/22 | 1,936 | 1,962 | 1,933 | 1,936 | 0% | 46,200 | - | -5.97% |
| 06/22 | (空売り報告)Diversified Select Opportunities, LLC 194,700株(0.7%)+0.09% |
| 06/19 | 1,990 | 1,990 | 1,931 | 1,936 | -2.07% | 71,300 | - | -6.65% |
| 06/18 | (IR情報)15:30 連結子会社からの配当金受領に関するお知らせ |
| 06/18 | (IR情報)15:30 取締役会の実効性評価結果の概要に関するお知らせ |
| 06/18 | (IR情報)15:30 資本コストや株価を意識した経営の実現に向けた対応について |
| 06/18 | (IR情報)15:30 投資家との対話の実施状況について |
| 06/18 | 1,979 | 2,030 | 1,973 | 1,977 | +0.92% | 38,400 | - | -5.04% |
| 06/17 | 1,991 | 1,991 | 1,955 | 1,959 | -1.06% | 61,400 | - | -6.22% |
| 06/17 | (空売り報告)モルガン・スタンレーMUFG証券 136,684株(0.49%)-0.08%義務消失 |
| 06/16 | 1,965 | 1,996 | 1,950 | 1,980 | +0.25% | 56,900 | - | -5.58% |
| 06/16 | (空売り報告)Barclays Capital Securities Ltd 166,802株(0.6%)+0.06% |
| 06/15 | 2,005 | 2,027 | 1,968 | 1,975 | +1.54% | 31,100 | - | -6.22% |
| 06/12 | 1,995 | 2,013 | 1,941 | 1,945 | -2.8% | 43,700 | - | -8.04% |
| 06/11 | 2,045 | 2,045 | 1,999 | 2,001 | -2.15% | 38,900 | - | -5.92% |
| 06/10 | (IR情報)10:00 国立大学法人佐賀大学とフコキサンチン単離に関する論文発表のお知らせ |
| 06/10 | 1,997 | 2,053 | 1,997 | 2,045 | +2.4% | 43,100 | - | -4.17% |
| 06/09 | 1,996 | 2,023 | 1,988 | 1,997 | -0.15% | 29,000 | - | -6.55% |
| 06/08 | 2,004 | 2,046 | 1,984 | 2,000 | -1.53% | 53,800 | - | -6.63% |
| 06/08 | (空売り報告)モルガン・スタンレーMUFG証券 159,384株(0.57%)-0.03% |
| 06/08 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 222,751株(0.8%)+0.01% |
| 06/05 | 2,017 | 2,060 | 2,014 | 2,031 | +0.69% | 47,700 | - | -5.45% |
| 06/05 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 222,151株(0.79%)-0.02% |
| 06/04 | 1,945 | 2,052 | 1,940 | 2,017 | +1.61% | 79,600 | - | -6.27% |
| 06/03 | 2,057 | 2,070 | 1,956 | 1,985 | -2.55% | 78,600 | - | -7.97% |
| 06/03 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 226,851株(0.81%)+0.06% |
| 06/02 | 2,101 | 2,109 | 2,023 | 2,037 | -3.23% | 63,500 | - | -5.87% |
| 06/02 | (空売り報告)Barclays Capital Securities Ltd 150,702株(0.54%)再IN |
| 06/01 | 2,113 | 2,150 | 2,100 | 2,105 | -0.71% | 50,700 | - | -3% |
| 05/29 | (IR情報)15:30 一般財団法人ミダック育英財団による奨学金事業開始に関するお知らせ |
| 05/29 | 2,173 | 2,199 | 2,120 | 2,120 | -1.35% | 41,000 | - | -2.44% |
| 05/28 | 2,145 | 2,156 | 2,111 | 2,149 | +0.14% | 29,300 | - | -1.2% |
| 05/27 | 2,160 | 2,170 | 2,122 | 2,146 | +0.14% | 44,100 | - | -1.24% |
| 05/26 | (IR情報)15:30 ミダックHD、リケンテクノス、早稲田大学と共同で、産業廃棄物の最終処分場で発生する浸出水由来の炭酸カルシウムを用いた樹脂製品を開発 |
| 05/26 | 2,150 | 2,158 | 2,124 | 2,143 | -1.79% | 25,800 | - | -1.38% |
| 05/25 | 2,252 | 2,259 | 2,129 | 2,182 | -4.34% | 69,800 | - | +0.46% |
| 05/22 | 2,200 | 2,299 | 2,200 | 2,281 | +4.59% | 73,700 | - | +5.26% |
| 05/22 | (空売り報告)Diversified Select Opportunities, LLC 169,700株(0.61%)+0.11% |
| 05/22 | (空売り報告)モルガン・スタンレーMUFG証券 167,384株(0.6%)+0.02% |
| 05/21 | (IR情報)15:30 当社株式等の大規模買付行為に関する対応策(買収への対応方針)の継続について |
| 05/21 | (IR情報)15:30 役員の異動及び組織再編に関するお知らせ |
| 05/21 | 2,157 | 2,215 | 2,138 | 2,181 | +2.01% | 37,600 | - | +1.11% |
| 05/20 | 2,161 | 2,181 | 2,082 | 2,138 | -3.3% | 59,500 | - | -0.6% |
| 05/20 | (空売り報告)モルガン・スタンレーMUFG証券 163,584株(0.58%)-0.02% |
| 05/19 | 2,304 | 2,317 | 2,200 | 2,211 | -3.83% | 91,300 | - | +2.98% |
| 05/18 | 2,300 | 2,345 | 2,267 | 2,299 | +6.93% | 163,700 | - | +7.38% |
| 05/15 | (IR情報)15:30 2026年3月期決算説明資料 |
| 05/15 | (IR情報)15:30 2026年3月期決算短信[日本基準](連結) |
| 05/15 | (IR情報)15:30 支配株主等に関する事項について |
| 05/15 | (IR情報)15:30 個別業績の前期実績との差異に関するお知らせ |
| 05/15 | 2,173 | 2,173 | 2,120 | 2,150 | 0% | 48,200 | - | +0.89% |
| 05/15 | (空売り報告)モルガン・スタンレーMUFG証券 168,784株(0.6%)+0.05% |
| 05/14 | 2,159 | 2,164 | 2,115 | 2,150 | -0.74% | 60,500 | - | +1.08% |
| 05/13 | 2,190 | 2,216 | 2,165 | 2,166 | -1.1% | 43,700 | - | +2.17% |
| 05/13 | (空売り報告)Barclays Capital Securities Ltd 136,402株(0.49%)-0.06%義務消失 |
| 05/12 | 2,240 | 2,240 | 2,172 | 2,190 | -0.45% | 35,300 | - | +3.74% |
| 05/12 | (空売り報告)モルガン・スタンレーMUFG証券 154,284株(0.55%)再IN |
| 05/12 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 211,058株(0.75%)-0.05% |
| 05/11 | 2,238 | 2,249 | 2,190 | 2,200 | -1.87% | 24,000 | - | +4.61% |
| 05/11 | (空売り報告)Barclays Capital Securities Ltd 153,802株(0.55%)-0.05% |
| 05/08 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 222,458株(0.8%)+0.02% |