| 2019 |
| 03/20 | 3,935 | 3,935 | 3,935 | 3,935 | +0.38% | 800 | 514億6793万 | +0.31% |
| 03/19 | 3,920 | 3,920 | 3,920 | 3,920 | 0% | 200 | 512億7173万 | -0.08% |
| 03/18 | 3,920 | 3,920 | 3,920 | 3,920 | 0% | 100 | 512億7173万 | -0.08% |
| 03/15 | 3,920 | 3,920 | 3,920 | 3,920 | 0% | 3,900 | 512億7173万 | -0.08% |
| 03/13 | 3,920 | 3,920 | 3,920 | 3,920 | -0.13% | 100 | 512億7173万 | -0.05% |
| 03/12 | 3,920 | 3,925 | 3,920 | 3,925 | +0.13% | 300 | 513億3713万 | +0.08% |
| 03/11 | 3,925 | 3,925 | 3,920 | 3,920 | -0.13% | 1,600 | 512億7173万 | -0.03% |
| 03/08 | 3,925 | 3,925 | 3,925 | 3,925 | +0.13% | 200 | 513億3713万 | +0.13% |
| 03/07 | 3,920 | 3,920 | 3,920 | 3,920 | 0% | 100 | 512億7173万 | 0% |
| 03/05 | 3,920 | 3,920 | 3,920 | 3,920 | 0% | 200 | 512億7173万 | +0.03% |
| 03/04 | 3,920 | 3,920 | 3,920 | 3,920 | 0% | 300 | 512億7173万 | +0.08% |
| 03/01 | 3,920 | 3,920 | 3,920 | 3,920 | 0% | 100 | 512億7173万 | +0.1% |
| 02/28 | 3,925 | 3,925 | 3,920 | 3,920 | 0% | 600 | 512億7173万 | +0.15% |
| 02/27 | 3,920 | 3,920 | 3,920 | 3,920 | 0% | 300 | 512億7173万 | +0.18% |
| 02/26 | 3,920 | 3,920 | 3,920 | 3,920 | -0.13% | 2,100 | 512億7173万 | +0.23% |
| 02/25 | 3,925 | 3,925 | 3,925 | 3,925 | 0% | 300 | 513億3713万 | +0.33% |
| 02/22 | （IR情報）14:00 株式併合及び定款の一部変更等に係る承認決議に関するお知らせ |
| 02/20 | 3,925 | 3,925 | 3,925 | 3,925 | 0% | 300 | 513億3713万 | +0.33% |
| 02/18 | 3,925 | 3,925 | 3,925 | 3,925 | 0% | 100 | 513億3713万 | +0.33% |
| 02/14 | 3,925 | 3,925 | 3,925 | 3,925 | -0.13% | 300 | 513億3713万 | +0.33% |
| 02/13 | 3,930 | 3,930 | 3,930 | 3,930 | +0.13% | 200 | 514億253万 | +0.46% |
| 02/12 | 3,925 | 3,925 | 3,925 | 3,925 | 0% | 200 | 513億3713万 | +0.33% |
| 02/07 | 3,925 | 3,925 | 3,925 | 3,925 | -0.13% | 200 | 513億3713万 | +0.33% |
| 02/06 | （IR情報）16:30 平成31年3月期第3四半期決算短信〔日本基準〕(連結) |
| 02/06 | 3,930 | 3,930 | 3,930 | 3,930 | +0.13% | 200 | 514億253万 | +0.46% |
| 02/05 | 3,925 | 3,925 | 3,925 | 3,925 | 0% | 2,900 | 513億3713万 | +0.36% |
| 02/04 | 3,925 | 3,925 | 3,925 | 3,925 | 0% | 100 | 513億3713万 | +0.36% |
| 02/01 | 3,925 | 3,925 | 3,925 | 3,925 | +0.26% | 100 | 513億3713万 | +0.36% |
| 01/25 | （IR情報）16:40 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等に関するお知らせ |
| 01/25 | （IR情報）16:40 自己株式の消却に関するお知らせ |
| 01/25 | 3,915 | 3,915 | 3,915 | 3,915 | -0.25% | 200 | 512億634万 | +0.1% |
| 01/24 | 3,925 | 3,925 | 3,925 | 3,925 | +0.51% | 100 | 513億3713万 | +0.36% |
| 01/21 | 3,905 | 3,905 | 3,905 | 3,905 | -0.26% | 100 | 510億7554万 | -0.15% |
| 01/15 | 3,915 | 3,915 | 3,915 | 3,915 | +0.38% | 2,100 | 512億634万 | +0.1% |
| 01/10 | 3,900 | 3,900 | 3,900 | 3,900 | 0% | 100 | 510億1014万 | -0.28% |
| 01/09 | 3,900 | 3,900 | 3,900 | 3,900 | -0.26% | 100 | 510億1014万 | -0.31% |
| 01/08 | （5%ルール）キタガワ（30.78%）日東工業（33.94%） |
| 01/07 | （5%ルール）キタガワ（30.78%）日東工業（33.94%）北川清登（0%） |
| 01/07 | 3,910 | 3,910 | 3,910 | 3,910 | +0.39% | 10,000 | 511億4094万 | -0.05% |
| 01/04 | 3,895 | 3,895 | 3,890 | 3,895 | +0.26% | 1,800 | 509億4474万 | -0.43% |
| 2018 |
| 12/28 | 3,885 | 3,885 | 3,885 | 3,885 | +0.13% | 200 | 508億1395万 | -0.72% |
| 12/27 | （IR情報）15:30 日東工業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、親会社以外の支配株主及び主要株主の異動 |
| 12/27 | 3,880 | 3,880 | 3,880 | 3,880 | 0% | 500 | 507億4855万 | -0.87% |
| 12/26 | 3,875 | 3,880 | 3,875 | 3,880 | 0% | 3,000 | 507億4855万 | -0.89% |
| 12/25 | 3,885 | 3,885 | 3,875 | 3,880 | -0.13% | 4,900 | 507億4855万 | -0.92% |
| 12/21 | 3,925 | 3,925 | 3,885 | 3,885 | -1.27% | 3,600 | 508億1395万 | -0.82% |
| 12/20 | （IR情報）17:00 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 |
| 12/20 | 3,930 | 3,935 | 3,930 | 3,935 | +0.13% | 8,200 | 514億6793万 | +0.43% |
| 12/19 | 3,930 | 3,930 | 3,930 | 3,930 | 0% | 25,000 | 514億253万 | +0.31% |
| 12/18 | 3,930 | 3,930 | 3,930 | 3,930 | +0.13% | 9,000 | 514億253万 | +0.33% |
| 12/17 | 3,925 | 3,925 | 3,925 | 3,925 | 0% | 4,000 | 513億3713万 | +0.23% |
| 12/14 | 3,925 | 3,930 | 3,925 | 3,925 | 0% | 3,100 | 513億3713万 | +0.36% |
| 12/13 | 3,925 | 3,925 | 3,925 | 3,925 | +0.13% | 27,600 | 513億3713万 | +1.5% |
| 12/12 | 3,920 | 3,920 | 3,920 | 3,920 | 0% | 2,600 | 512億7173万 | +3.1% |
| 12/11 | 3,920 | 3,925 | 3,920 | 3,920 | 0% | 36,500 | 512億7173万 | +5.35% |
| 12/10 | 3,920 | 3,920 | 3,920 | 3,920 | 0% | 140,200 | 512億7173万 | +8.14% |
| 12/07 | 3,925 | 3,925 | 3,920 | 3,920 | -0.13% | 109,000 | 512億7173万 | +11.11% |
| 12/06 | 3,915 | 3,925 | 3,915 | 3,925 | +0.13% | 11,700 | 513億3713万 | +14.26% |
| 12/05 | 3,920 | 3,920 | 3,915 | 3,920 | 0% | 5,800 | 512億7173万 | +17.4% |
| 12/04 | 3,920 | 3,920 | 3,915 | 3,920 | +0.13% | 21,400 | 512億7173万 | +20.99% |
| 12/03 | 3,915 | 3,920 | 3,915 | 3,915 | 0% | 31,200 | 512億634万 | +24.56% |
| 11/30 | 3,915 | 3,915 | 3,915 | 3,915 | 0% | 4,300 | 512億634万 | +28.53% |
| 11/29 | 3,915 | 3,915 | 3,910 | 3,915 | 0% | 53,800 | 512億634万 | +32.71% |
| 11/28 | 3,910 | 3,915 | 3,910 | 3,915 | +0.13% | 89,700 | 512億634万 | +37.27% |
| 11/27 | 3,915 | 3,920 | 3,910 | 3,910 | 0% | 99,500 | 511億4094万 | +41.92% |
| 11/26 | 3,915 | 3,915 | 3,910 | 3,910 | -0.13% | 137,000 | 511億4094万 | +47.21% |
| 11/22 | 3,915 | 3,915 | 3,910 | 3,915 | +0.13% | 29,900 | 512億634万 | +52.99% |
| 11/21 | 3,910 | 3,915 | 3,910 | 3,910 | 0% | 31,400 | 511億4094万 | +58.94% |
| 11/20 | 3,910 | 3,910 | 3,910 | 3,910 | 0% | 66,100 | 511億4094万 | +65.61% |
| 11/19 | 3,915 | 3,915 | 3,910 | 3,910 | 0% | 45,100 | 511億4094万 | +72.78% |
| 11/16 | 3,915 | 3,915 | 3,910 | 3,910 | 0% | 34,700 | 511億4094万 | +80.68% |
| 11/15 | 3,915 | 3,915 | 3,910 | 3,910 | -0.13% | 44,200 | 511億4094万 | +89.25% |
| 11/14 | 3,915 | 3,920 | 3,915 | 3,915 | +0.13% | 87,000 | 512億634万 | +98.83% |
| 11/13 | 3,915 | 3,920 | 3,910 | 3,910 | 0% | 172,800 | 511億4094万 | +108.98% |
| 11/12 | 3,910 | 3,915 | 3,910 | 3,910 | +2.62% | 187,300 | 511億4094万 | +120.41% |
| 11/09 | 3,810 | 3,810 | 3,810 | 3,810 | +35.73% | 2,700 | 498億3299万 | +127.06% |
| 11/08 | 2,807 | 2,807 | 2,807 | 2,807 | +21.67% | 200 | 367億1422万 | +77.21% |
| 11/07 | 2,307 | 2,307 | 2,307 | 2,307 | +20.98% | 500 | 301億7446万 | +50.59% |
| 11/06 | （5%ルール）キタガワ（30.78%）北川清登（9.93%） |
| 11/06 | 1,907 | 1,907 | 1,907 | 1,907 | +26.54% | 1,100 | 249億4265万 | +27.13% |
| 11/05 | （IR情報）15:30 平成31年3月期第2四半期決算短信〔日本基準〕(連結) |
| 11/05 | （IR情報）15:30 剰余金の配当(中間配当無配)及び配当予想の修正(期末配当無配)に関するお知らせ |
| 11/05 | （IR情報）15:30 平成31年3月期第2四半期累計期間の連結業績予想と実績との差異及び通期連結業績予想の修正に関するお知らせ |
| 11/05 | （IR情報）15:30 日東工業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 |
| 11/05 | 1,505 | 1,520 | 1,505 | 1,507 | +0.13% | 3,400 | 197億1084万 | +1.62% |
| 11/02 | 1,538 | 1,538 | 1,505 | 1,505 | -5.05% | 300 | 196億8468万 | +1.48% |
| 11/01 | 1,555 | 1,585 | 1,555 | 1,585 | +4.62% | 2,200 | 207億3104万 | +6.95% |
| 10/31 | 1,515 | 1,515 | 1,515 | 1,515 | +3.27% | 700 | 198億1548万 | +2.5% |
| 10/29 | 1,470 | 1,476 | 1,467 | 1,467 | -0.61% | 300 | 191億8766万 | -0.68% |
| 10/26 | 1,475 | 1,505 | 1,475 | 1,476 | -1.93% | 3,500 | 193億537万 | -0.07% |
| 10/25 | 1,505 | 1,505 | 1,500 | 1,505 | +0.33% | 2,300 | 196億8468万 | +1.96% |
| 10/24 | 1,465 | 1,500 | 1,465 | 1,500 | +1.35% | 3,200 | 196億1928万 | +1.76% |
| 10/23 | 1,481 | 1,485 | 1,480 | 1,480 | 0% | 1,300 | 193億5769万 | +0.48% |
| 10/22 | 1,475 | 1,480 | 1,475 | 1,480 | +2% | 300 | 193億5769万 | +0.54% |
| 10/19 | 1,440 | 1,451 | 1,440 | 1,451 | -0.96% | 300 | 189億7839万 | -1.29% |
| 10/17 | 1,451 | 1,465 | 1,451 | 1,465 | +1.03% | 400 | 191億6150万 | -0.41% |
| 10/16 | 1,435 | 1,450 | 1,435 | 1,450 | +1.05% | 1,500 | 189億6531万 | -1.43% |
| 10/15 | 1,432 | 1,435 | 1,432 | 1,435 | -1.85% | 3,100 | 187億6911万 | -2.51% |
| 10/12 | 1,490 | 1,490 | 1,460 | 1,462 | +2.24% | 1,500 | 191億2226万 | -0.81% |
| 10/11 | 1,432 | 1,432 | 1,430 | 1,430 | -2.05% | 700 | 187億372万 | -3.05% |
| 10/10 | 1,460 | 1,460 | 1,460 | 1,460 | -1.35% | 200 | 190億9610万 | -1.15% |
| 10/09 | 1,480 | 1,480 | 1,480 | 1,480 | 0% | 100 | 193億5769万 | +0.2% |
| 10/05 | 1,480 | 1,480 | 1,480 | 1,480 | 0% | 100 | 193億5769万 | +0.2% |
| 10/04 | 1,470 | 1,480 | 1,470 | 1,480 | -1% | 300 | 193億5769万 | +0.2% |
| 10/02 | 1,495 | 1,495 | 1,495 | 1,495 | +1.36% | 100 | 195億5388万 | +1.29% |
| 10/01 | 1,475 | 1,475 | 1,475 | 1,475 | -1.67% | 100 | 192億9229万 | +0.07% |
| 09/28 | 1,500 | 1,500 | 1,500 | 1,500 | 0% | 1,000 | 196億1928万 | +1.83% |
| 09/27 | 1,500 | 1,500 | 1,500 | 1,500 | 0% | 700 | 196億1928万 | +1.9% |
| 09/26 | 1,500 | 1,500 | 1,500 | 1,500 | 0% | 3,100 | 196億1928万 | +2.04% |
| 09/25 | 1,480 | 1,500 | 1,465 | 1,500 | +1.35% | 4,900 | 196億1928万 | +2.25% |
| 09/21 | 1,480 | 1,480 | 1,475 | 1,480 | -0.54% | 1,100 | 193億5769万 | +0.95% |
| 09/20 | 1,484 | 1,488 | 1,480 | 1,488 | +0.54% | 1,000 | 194億6233万 | +1.57% |
| 09/19 | 1,480 | 1,480 | 1,480 | 1,480 | +0.34% | 400 | 193億5769万 | +1.09% |
