| 2026 |
| 05/13 | 2,799 | 2,833 | 2,791 | 2,799 | +0.43% | 335,100 | 1494億1859万 | -13.72% |
| 05/12 | (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払込完了に関するお知らせ |
| 05/12 | 2,799 | 2,837 | 2,783 | 2,787 | +0.98% | 441,500 | 1487億7800万 | -14.56% |
| 05/11 | 2,894 | 2,922 | 2,760 | 2,760 | -4.6% | 487,600 | 1473億3666万 | -15.85% |
| 05/08 | 2,920 | 2,964 | 2,775 | 2,893 | -10.98% | 1,111,000 | 1544億3658万 | -12.09% |
| 05/08 | (IR情報)8:30 2026年12月期 第1四半期決算報告 質疑応答要旨掲載のお知らせ |
| 05/07 | (IR情報)15:30 2026年12月期第1四半期決算補足説明資料 |
| 05/07 | (IR情報)15:30 2026年12月期第1四半期決算短信〔日本基準〕(連結) |
| 05/07 | 3,225 | 3,295 | 3,160 | 3,250 | +2.85% | 363,000 | 1734億9426万 | -1.52% |
| 05/01 | 3,145 | 3,160 | 3,120 | 3,160 | -0.16% | 132,100 | 1686億8980万 | -4.24% |
| 04/30 | 3,220 | 3,220 | 3,080 | 3,165 | -3.8% | 277,900 | 1689億5672万 | -4.21% |
| 04/28 | 3,215 | 3,300 | 3,210 | 3,290 | +2.33% | 124,400 | 1756億2957万 | -0.66% |
| 04/27 | 3,175 | 3,270 | 3,170 | 3,215 | +0.78% | 218,600 | 1716億2586万 | -2.96% |
| 04/24 | 3,195 | 3,225 | 3,160 | 3,190 | -1.39% | 135,600 | 1702億9129万 | -3.65% |
| 04/23 | 3,210 | 3,240 | 3,185 | 3,235 | -0.92% | 108,200 | 1726億9351万 | -2.41% |
| 04/22 | 3,295 | 3,325 | 3,250 | 3,265 | -1.06% | 102,300 | 1742億9500万 | -1.77% |
| 04/22 | (空売り報告)モルガン・スタンレーMUFG証券 138,396株(0.25%)-0.39%義務消失 |
| 04/21 | 3,325 | 3,370 | 3,285 | 3,300 | +0.46% | 111,200 | 1761億6340万 | -0.93% |
| 04/21 | (空売り報告)モルガン・スタンレーMUFG証券 346,296株(0.64%)-0.23% |
| 04/20 | 3,315 | 3,355 | 3,275 | 3,285 | -0.3% | 176,300 | 1753億6266万 | -1.5% |
| 04/20 | (空売り報告)Morgan Stanley & Co. International plc 11,171株(0.02%)-0.9%義務消失 |
| 04/20 | (空売り報告)モルガン・スタンレーMUFG証券 467,396株(0.87%)再IN |
| 04/17 | 3,335 | 3,335 | 3,265 | 3,295 | -1.64% | 135,500 | 1758億9649万 | -1.32% |
| 04/17 | (空売り報告)Morgan Stanley & Co. International plc 491,677株(0.92%)+0.65% |
| 04/16 | 3,365 | 3,380 | 3,330 | 3,350 | -0.45% | 144,900 | 1788億3254万 | +0.18% |
| 04/15 | 3,590 | 3,600 | 3,355 | 3,365 | -4.81% | 199,400 | 1796億3329万 | +0.39% |
| 04/14 | 3,600 | 3,620 | 3,530 | 3,535 | 0% | 132,300 | 1887億837万 | +5.3% |
| 04/13 | (IR情報)15:30 譲渡制限付株式報酬としての自己株式処分に関するお知らせ |
| 04/13 | 3,505 | 3,585 | 3,490 | 3,535 | +1.58% | 143,600 | 1887億837万 | +5.62% |
| 04/10 | 3,500 | 3,535 | 3,465 | 3,480 | +0.58% | 113,800 | 1857億7231万 | +4.1% |
| 04/09 | 3,480 | 3,525 | 3,435 | 3,460 | -1.7% | 152,000 | 1847億466万 | +3.56% |
| 04/08 | 3,500 | 3,540 | 3,450 | 3,520 | +4.61% | 148,800 | 1879億763万 | +5.61% |
| 04/07 | (5%ルール)みずほ信託銀行(0.66%)みずほ証券(0.12%)アセットマネジメントOne(4.19%)みずほ銀行(2.1%) |
| 04/07 | 3,315 | 3,365 | 3,295 | 3,365 | +1.51% | 132,400 | 1796億3329万 | +0.93% |
| 04/06 | 3,305 | 3,325 | 3,260 | 3,315 | +0.91% | 106,600 | 1769億6414万 | -0.93% |
| 04/03 | 3,280 | 3,305 | 3,240 | 3,285 | +1.39% | 109,200 | 1753億6266万 | -2.17% |
| 04/02 | 3,285 | 3,375 | 3,230 | 3,240 | -0.15% | 284,900 | 1729億6043万 | -3.74% |
| 04/01 | 3,200 | 3,245 | 3,170 | 3,245 | +7.27% | 197,100 | 1732億2734万 | -3.77% |
| 04/01 | (IR情報)8:45 執行役員人事に関するお知らせ |
| 03/31 | 3,025 | 3,110 | 3,000 | 3,025 | -3.2% | 172,300 | 1614億8312万 | -10.37% |
| 03/30 | (IR情報)17:00 執行役員人事に関するお知らせ |
| 03/30 | 3,110 | 3,135 | 3,060 | 3,125 | -3.85% | 181,300 | 1668億2140万 | -7.6% |
| 03/27 | 3,255 | 3,295 | 3,240 | 3,250 | -0.46% | 140,700 | 1734億9426万 | -4.04% |
| 03/26 | 3,375 | 3,390 | 3,240 | 3,265 | -3.12% | 192,700 | 1742億9500万 | -3.55% |
| 03/25 | 3,370 | 3,415 | 3,355 | 3,370 | +2.12% | 129,700 | 1799億20万 | -0.27% |
| 03/24 | 3,300 | 3,335 | 3,265 | 3,300 | +4.1% | 152,800 | 1761億6340万 | -1.96% |
| 03/23 | 3,205 | 3,235 | 3,150 | 3,170 | -3.79% | 183,400 | 1692億2363万 | -5.06% |
| 03/19 | (5%ルール)アモーヴァ・アセットマネジメント(1.9%)三井住友トラスト・アセットマネジメント(3.22%) |
| 03/19 | 3,380 | 3,380 | 3,280 | 3,295 | -4.63% | 190,300 | 1758億9649万 | -0.93% |
| 03/18 | 3,455 | 3,480 | 3,410 | 3,455 | +0.44% | 118,800 | 1844億3774万 | +4.48% |
| 03/17 | 3,500 | 3,515 | 3,440 | 3,440 | +0.73% | 172,100 | 1836億3700万 | +4.94% |
| 03/16 | 3,405 | 3,480 | 3,395 | 3,415 | +1.04% | 201,500 | 1823億243万 | +5.21% |
| 03/13 | (IR情報)15:30 (訂正)「2025年12月期決算短信〔日本基準〕(連結)」の一部訂正について |
| 03/13 | 3,380 | 3,435 | 3,370 | 3,380 | -1.31% | 131,800 | 1804億3403万 | +5.13% |
| 03/12 | 3,525 | 3,540 | 3,400 | 3,425 | -3.39% | 145,100 | 1828億3626万 | +7.54% |
| 03/11 | 3,550 | 3,610 | 3,525 | 3,545 | +1.87% | 293,500 | 1892億4220万 | +12.43% |
| 03/10 | 3,410 | 3,565 | 3,405 | 3,480 | +5.94% | 346,200 | 1857億7231万 | +11.72% |
| 03/09 | 3,230 | 3,300 | 3,205 | 3,285 | -4.78% | 214,600 | 1753億6266万 | +6.66% |
| 03/06 | (IR情報)13:00 2025年12月期決算説明会動画および書き起こし(質疑応答含む)掲載のお知らせ |
| 03/06 | (IR情報)10:00 Omega Investment株式会社のレポートに当社掲載のお知らせ |
| 03/06 | 3,395 | 3,470 | 3,350 | 3,450 | +1.02% | 128,200 | 1841億7083万 | +13.04% |
| 03/05 | 3,500 | 3,515 | 3,350 | 3,415 | +4.75% | 308,700 | 1823億243万 | +13.15% |
| 03/04 | 3,335 | 3,405 | 3,190 | 3,260 | -8.04% | 545,200 | 1740億2809万 | +9.18% |
| 03/03 | 3,620 | 3,660 | 3,500 | 3,545 | -3.67% | 273,800 | 1892億4220万 | +19.89% |
| 03/02 | 3,610 | 3,695 | 3,530 | 3,680 | +1.94% | 261,600 | 1964億4888万 | +26.16% |
| 02/27 | (IR情報)14:00 イトーキ、国立大学法人大阪教育大学と包括連携協定を締結 |
| 02/27 | 3,520 | 3,630 | 3,510 | 3,610 | +4.03% | 292,700 | 1927億1208万 | +25.7% |
| 02/26 | 3,470 | 3,555 | 3,425 | 3,470 | +1.76% | 247,900 | 1852億3848万 | +22.66% |
| 02/25 | 3,425 | 3,530 | 3,385 | 3,410 | +3.33% | 507,900 | 1820億3551万 | +22.13% |
| 02/24 | 3,390 | 3,390 | 3,260 | 3,300 | +2.96% | 406,200 | 1761億6340万 | +19.52% |
| 02/20 | (IR情報)13:00 イトーキ、3つのAIエージェント群「ITOKI OFFICE AI AGENTS」を発表。業界初となる“AI経営モデル”へ転換 |
| 02/20 | 3,215 | 3,245 | 3,185 | 3,205 | -1.23% | 126,800 | 1710億9203万 | +17.23% |
| 02/19 | 3,265 | 3,325 | 3,205 | 3,245 | +1.41% | 308,700 | 1732億2734万 | +19.79% |
| 02/18 | 3,185 | 3,340 | 3,115 | 3,200 | +2.73% | 468,300 | 1708億2512万 | +19.31% |
| 02/17 | 3,075 | 3,140 | 3,050 | 3,115 | +1.8% | 333,100 | 1662億8757万 | +17.33% |
| 02/16 | 3,025 | 3,125 | 2,941 | 3,060 | +16.62% | 829,400 | 1633億5152万 | +16.31% |
| 02/13 | (IR情報)16:00 指名委員会・報酬委員会の設置に関するお知らせ |
| 02/13 | (IR情報)16:00 代表取締役および役員の異動に関するお知らせ |
| 02/13 | (IR情報)15:30 剰余金の配当(増配)に関するお知らせ |
| 02/13 | (IR情報)15:30 2025年12月期決算補足説明資料(2部) |
| 02/13 | (IR情報)15:30 2025年12月期決算補足説明資料(1部) |
| 02/13 | (IR情報)15:30 2025年12月期決算短信〔日本基準〕(連結) |
| 02/13 | 2,840 | 2,849 | 2,624 | 2,624 | -7.93% | 420,900 | 1400億7659万 | +0.69% |
| 02/12 | 2,826 | 2,858 | 2,801 | 2,850 | +1.5% | 156,600 | 1521億4112万 | +9.66% |
| 02/12 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 265,891株(0.49%)-0.07%義務消失 |
| 02/10 | 2,733 | 2,824 | 2,724 | 2,808 | +2.67% | 231,800 | 1498億9904万 | +8.75% |
| 02/09 | 2,693 | 2,775 | 2,682 | 2,735 | +3.48% | 235,600 | 1460億209万 | +6.54% |
| 02/09 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 301,191株(0.56%)-0.12% |
| 02/06 | (IR情報)11:00 イトーキ、「知財・無形資産ガバナンス表彰」において、特別賞を初受賞 |
| 02/06 | 2,632 | 2,649 | 2,603 | 2,643 | +0.49% | 81,800 | 1410億9087万 | +3.44% |
| 02/05 | 2,633 | 2,650 | 2,616 | 2,630 | -0.23% | 99,600 | 1403億9689万 | +3.22% |
| 02/04 | 2,619 | 2,659 | 2,598 | 2,636 | +0.38% | 137,400 | 1407億1719万 | +3.62% |
| 02/03 | 2,595 | 2,638 | 2,593 | 2,626 | +1.27% | 94,200 | 1401億8336万 | +3.43% |
| 02/02 | 2,614 | 2,653 | 2,593 | 2,593 | -0.35% | 143,200 | 1384億2173万 | +2.33% |
| 01/30 | 2,595 | 2,612 | 2,570 | 2,602 | +0.7% | 123,500 | 1389億217万 | +2.76% |
| 01/29 | 2,572 | 2,596 | 2,523 | 2,584 | -0.65% | 135,000 | 1379億4128万 | +2.09% |
| 01/28 | 2,591 | 2,612 | 2,571 | 2,601 | -0.57% | 141,000 | 1388億4879万 | +2.85% |
| 01/27 | 2,578 | 2,646 | 2,567 | 2,616 | +3.48% | 280,900 | 1396億4953万 | +3.56% |
| 01/26 | (IR情報)16:00 連結子会社の吸収合併(簡易合併)に関するお知らせ |
| 01/26 | 2,520 | 2,547 | 2,506 | 2,528 | -1.06% | 90,300 | 1349億5184万 | +0.28% |
| 01/23 | (IR情報)13:00 イトーキ、滋賀・近江八幡のチェア工場をリニューアル。人と開発が育つ「ITOKI DESIGN HOUSE SHIGA」へ進化 |
| 01/23 | 2,563 | 2,613 | 2,551 | 2,555 | -0.31% | 91,800 | 1363億9318万 | +1.35% |
| 01/22 | 2,535 | 2,582 | 2,533 | 2,563 | +1.1% | 88,800 | 1368億2024万 | +1.75% |
| 01/21 | (5%ルール)アモーヴァ・アセットマネジメント(1.78%)三井住友トラスト・アセットマネジメント(3.18%) |
| 01/21 | 2,500 | 2,565 | 2,500 | 2,535 | -0.24% | 132,400 | 1353億2552万 | +0.72% |
| 01/20 | 2,634 | 2,634 | 2,541 | 2,541 | -3.53% | 144,600 | 1356億4582万 | +0.95% |
| 01/19 | 2,650 | 2,661 | 2,606 | 2,634 | +0.11% | 104,700 | 1406億1042万 | +4.73% |
| 01/16 | 2,581 | 2,642 | 2,570 | 2,631 | +1.94% | 146,900 | 1404億5027万 | +4.82% |
| 01/15 | 2,578 | 2,591 | 2,565 | 2,581 | +0.55% | 116,800 | 1377億8113万 | +3.03% |
| 01/14 | 2,521 | 2,567 | 2,521 | 2,567 | +1.5% | 169,400 | 1370億3377万 | +2.76% |
| 01/13 | 2,521 | 2,539 | 2,502 | 2,529 | +1.44% | 138,800 | 1350億522万 | +1.48% |
| 01/13 | (空売り報告)Arrowstreet Capital, Limited Partnership 477,900株(0.89%)-0.01% |
| 01/13 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 363,439株(0.68%)-0.03% |
| 01/09 | 2,460 | 2,513 | 2,460 | 2,493 | +1.8% | 136,500 | 1330億8344万 | +0.24% |
| 01/08 | 2,452 | 2,483 | 2,444 | 2,449 | -0.2% | 136,300 | 1307億3459万 | -1.37% |
| 01/07 | 2,420 | 2,466 | 2,401 | 2,454 | +1.2% | 148,800 | 1310億151万 | -1.09% |
| 01/06 | 2,435 | 2,446 | 2,420 | 2,425 | +0.5% | 121,700 | 1294億5341万 | -2.22% |
| 01/06 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 382,139株(0.71%)+0.09% |
| 01/05 | 2,435 | 2,450 | 2,383 | 2,413 | -1.11% | 140,000 | 1288億1281万 | -2.66% |
| 2025 |
| 12/30 | 2,492 | 2,492 | 2,436 | 2,440 | -1.05% | 125,200 | 1302億5415万 | -1.57% |
| 12/29 | 2,428 | 2,466 | 2,423 | 2,466 | -2.91% | 237,100 | 1316億4210万 | -0.48% |
| 12/26 | 2,517 | 2,558 | 2,512 | 2,540 | +1.03% | 193,300 | 1355億9243万 | +2.67% |
| 12/25 | 2,500 | 2,517 | 2,478 | 2,514 | +0.56% | 81,700 | 1342億448万 | +2.03% |
| 12/24 | 2,530 | 2,545 | 2,500 | 2,500 | -1.19% | 93,900 | 1334億5712万 | +1.87% |
| 12/23 | 2,586 | 2,593 | 2,527 | 2,530 | -2.17% | 147,600 | 1350億5861万 | +3.48% |
| 12/22 | 2,550 | 2,620 | 2,537 | 2,586 | +1.65% | 160,600 | 1380億4805万 | +6.07% |
| 12/19 | (IR情報)17:00 物流再編に伴う固定資産譲渡に関するお知らせ |
| 12/19 | (IR情報)13:00 イトーキ、代表取締役社長 湊と経済アナリスト馬渕磨理子氏の日経ビジネス対談記事掲載のお知らせ |
| 12/19 | (IR情報)11:00 イトーキ、農林水産省と「建築物木材利用促進協定」を締結 |
| 12/19 | 2,511 | 2,545 | 2,509 | 2,544 | +1.48% | 171,600 | 1358億597万 | +4.69% |
| 12/18 | 2,502 | 2,535 | 2,495 | 2,507 | -0.16% | 82,900 | 1338億3080万 | +3.42% |
| 12/17 | 2,533 | 2,539 | 2,490 | 2,511 | +0.04% | 122,000 | 1340億4433万 | +3.76% |
| 12/17 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 331,294株(0.62%)+0.03% |
| 12/16 | 2,539 | 2,539 | 2,509 | 2,510 | -0.4% | 115,900 | 1339億9095万 | +3.98% |
| 12/15 | 2,504 | 2,520 | 2,485 | 2,520 | +0.44% | 114,100 | 1345億2478万 | +4.65% |
| 12/12 | 2,540 | 2,543 | 2,503 | 2,509 | -0.44% | 124,200 | 1339億3757万 | +4.45% |
| 12/11 | 2,523 | 2,545 | 2,497 | 2,520 | +0.76% | 137,900 | 1345億2478万 | +5.26% |
| 12/10 | 2,502 | 2,530 | 2,477 | 2,501 | -0.04% | 152,700 | 1335億1050万 | +4.86% |
| 12/08 | (IR情報)16:00 格付維持に関するお知らせ |
| 12/08 | (IR情報)10:00 イトーキ、人的資本経営の実践について、日本経済新聞に企業広告を掲載 |
| 12/08 | (空売り報告)GOLDMAN SACHS INTERNATIONAL 318,913株(0.59%)-0.01% |
| 12/05 | (IR情報)13:00 グローバルIRの拡充に向けた英語版レポート発行のお知らせ |