| 2026 |
| 03/06 | 2,604 | 2,673 | 2,581 | 2,646 | +1.61% | 881,300 | 5853億7319万 | +6.35% |
| 03/05 | 2,624 | 2,672 | 2,592 | 2,604 | -0.76% | 1,514,800 | 5760億8155万 | +5.21% |
| 03/04 | 2,570 | 2,644 | 2,548 | 2,624 | +2.06% | 2,066,400 | 5805億614万 | +6.41% |
| 03/03 | 2,593 | 2,612 | 2,554 | 2,571 | -1.91% | 1,544,800 | 5687億8098万 | +4.64% |
| 03/02 | (IR情報)16:00 自己株式の取得状況に関するお知らせ(会社法第165条第2項の規定による定款の定めに基づく自己株式の取得) |
| 03/02 | 2,600 | 2,636 | 2,567 | 2,621 | +0.23% | 1,056,000 | 5798億4245万 | +6.89% |
| 02/27 | (IR情報)16:00 代表取締役の異動、および当社ならびに主要子会社における役員の異動に関するお知らせ(株式会社セガ、サミー株式会社、セガサミークリエイション株式会社) |
| 02/27 | 2,583 | 2,630 | 2,556 | 2,615 | +2.59% | 2,043,800 | 5785億1507万 | +7.04% |
| 02/26 | 2,536 | 2,596 | 2,526 | 2,549 | -0.82% | 1,582,000 | 5639億1393万 | +4.72% |
| 02/25 | 2,510 | 2,571 | 2,480 | 2,570 | +3.75% | 1,600,000 | 5685億5975万 | +5.76% |
| 02/24 | 2,442 | 2,490 | 2,432 | 2,477 | +1.47% | 1,379,600 | 5479億8541万 | +2.1% |
| 02/20 | 2,473 | 2,480 | 2,438 | 2,441 | -2.13% | 959,800 | 5400億2115万 | +0.74% |
| 02/19 | 2,545 | 2,545 | 2,484 | 2,494 | -2.08% | 1,474,500 | 5517億4631万 | +2.93% |
| 02/18 | 2,571 | 2,598 | 2,526 | 2,547 | -0.86% | 1,754,300 | 5634億7147万 | +5.12% |
| 02/17 | 2,591 | 2,649 | 2,549 | 2,569 | -1.83% | 2,371,800 | 5683億3852万 | +6.2% |
| 02/16 | 2,525 | 2,705 | 2,469 | 2,617 | +10.19% | 4,708,300 | 5789億5753万 | +8.27% |
| 02/13 | (IR情報)11:30 自己株式の取得に関するお知らせ(会社法第165条第2項の規定による定款の定めに基づく自己株式の取得) |
| 02/13 | (IR情報)11:30 特別損失(減損損失)の計上及び業績予想の修正に関するお知らせ |
| 02/13 | (IR情報)11:30 2026年3月期Q3決算補足データ集 |
| 02/13 | (IR情報)11:30 2026年3月期第3四半期決算プレゼンテーション |
| 02/13 | (IR情報)11:30 2026年3月期第3四半期決算短信〔日本基準〕(連結) |
| 02/13 | 2,360 | 2,441 | 2,273 | 2,375 | +0.64% | 3,685,100 | 5254億2000万 | -1.57% |
| 02/12 | 2,403 | 2,418 | 2,360 | 2,360 | -1.26% | 1,070,800 | 5221億156万 | -2.4% |
| 02/10 | 2,350 | 2,425 | 2,348 | 2,390 | +1.49% | 1,038,100 | 5287億3844万 | -1.4% |
| 02/09 | 2,382 | 2,388 | 2,352 | 2,355 | -0.59% | 904,700 | 5209億9541万 | -2.93% |
| 02/06 | 2,399 | 2,406 | 2,349 | 2,369 | -1.95% | 872,600 | 5240億9262万 | -2.51% |
| 02/05 | 2,411 | 2,427 | 2,366 | 2,416 | +2.24% | 905,100 | 5344億9041万 | -0.74% |
| 02/04 | 2,380 | 2,390 | 2,357 | 2,363 | -2.11% | 1,127,300 | 5227億6525万 | -3% |
| 02/03 | 2,379 | 2,439 | 2,361 | 2,414 | +0.88% | 1,043,400 | 5340億4795万 | -1.07% |
| 02/02 | 2,411 | 2,420 | 2,379 | 2,393 | -1.16% | 1,306,700 | 5294億213万 | -1.97% |
| 01/30 | 2,391 | 2,432 | 2,381 | 2,421 | +1.42% | 1,125,200 | 5355億9656万 | -0.98% |
| 01/29 | 2,372 | 2,390 | 2,342 | 2,387 | +1.96% | 847,100 | 5280億7475万 | -2.41% |
| 01/28 | 2,363 | 2,369 | 2,338 | 2,341 | -1.64% | 651,800 | 5178億9820万 | -4.41% |
| 01/27 | 2,385 | 2,399 | 2,367 | 2,380 | -0.46% | 587,500 | 5265億2615万 | -3.05% |
| 01/26 | 2,421 | 2,437 | 2,385 | 2,391 | -2.53% | 767,500 | 5289億5967万 | -2.77% |
| 01/23 | 2,419 | 2,469 | 2,414 | 2,453 | +2.46% | 932,300 | 5426億7590万 | -0.37% |
| 01/22 | 2,414 | 2,419 | 2,391 | 2,394 | +0.34% | 677,400 | 5296億2336万 | -2.88% |
| 01/21 | 2,421 | 2,436 | 2,381 | 2,386 | -2.69% | 1,027,500 | 5278億5352万 | -3.44% |
| 01/20 | 2,452 | 2,505 | 2,450 | 2,452 | -0.12% | 825,700 | 5424億5467万 | -1.09% |
| 01/19 | 2,394 | 2,463 | 2,372 | 2,455 | +1.82% | 1,067,800 | 5431億1836万 | -1.21% |
| 01/16 | 2,435 | 2,445 | 2,397 | 2,411 | -1.67% | 998,200 | 5333億8426万 | -3.33% |
| 01/15 | 2,465 | 2,471 | 2,443 | 2,452 | -1.05% | 846,300 | 5424億5467万 | -2.08% |
| 01/14 | (自社株買い)取締役会(2025年5月12日)での決議状況(取得期間2025年5月13日~2025年12月31日) |
| 01/14 | 2,466 | 2,510 | 2,466 | 2,478 | +0.61% | 866,400 | 5482億664万 | -1.31% |
| 01/13 | 2,501 | 2,515 | 2,456 | 2,463 | -1.36% | 856,800 | 5448億8819万 | -2.26% |
| 01/09 | 2,515 | 2,522 | 2,484 | 2,497 | -1.03% | 867,600 | 5524億1000万 | -1.19% |
| 01/08 | 2,493 | 2,530 | 2,490 | 2,523 | +0.8% | 879,100 | 5581億6196万 | -0.47% |
| 01/07 | 2,491 | 2,506 | 2,451 | 2,503 | -0.16% | 863,800 | 5537億3737万 | -1.53% |
| 01/06 | 2,477 | 2,536 | 2,473 | 2,507 | +2.24% | 1,006,900 | 5546億2229万 | -1.65% |
| 01/05 | 2,456 | 2,471 | 2,413 | 2,452 | +0.16% | 903,300 | 5424億5467万 | -4.11% |
| 2025 |
| 12/30 | 2,472 | 2,495 | 2,448 | 2,448 | -0.45% | 715,700 | 5415億6975万 | -4.64% |
| 12/29 | 2,471 | 2,495 | 2,445 | 2,459 | -0.49% | 813,900 | 5440億328万 | -4.5% |
| 12/26 | 2,472 | 2,488 | 2,460 | 2,471 | +0.41% | 540,200 | 5466億5803万 | -4.34% |
| 12/25 | 2,472 | 2,474 | 2,448 | 2,461 | +0.45% | 535,000 | 5444億4574万 | -4.94% |
| 12/24 | 2,507 | 2,516 | 2,448 | 2,450 | -1.84% | 697,700 | 5420億1221万 | -5.48% |
| 12/23 | 2,447 | 2,544 | 2,435 | 2,496 | +2.72% | 1,390,700 | 5521億8877万 | -3.82% |
| 12/22 | 2,502 | 2,510 | 2,418 | 2,430 | -1.38% | 1,288,600 | 5375億8762万 | -6.43% |
| 12/19 | 2,466 | 2,487 | 2,452 | 2,464 | -1.32% | 1,082,300 | 5451億942万 | -5.27% |
| 12/18 | 2,483 | 2,509 | 2,469 | 2,497 | +0.85% | 506,000 | 5524億1000万 | -4.04% |
| 12/17 | 2,477 | 2,485 | 2,446 | 2,476 | +0.36% | 566,400 | 5477億6418万 | -4.95% |
| 12/16 | 2,501 | 2,514 | 2,467 | 2,467 | -2.37% | 805,700 | 5457億7311万 | -5.41% |
| 12/15 | 2,571 | 2,573 | 2,517 | 2,527 | -0.98% | 766,000 | 5590億4688万 | -3.11% |
| 12/12 | (自社株買い)取締役会(2025年5月12日)での決議状況(取得期間2025年5月13日~2025年12月31日) |
| 12/12 | 2,596 | 2,623 | 2,548 | 2,552 | -1.16% | 894,400 | 5645億7762万 | -2.33% |
| 12/11 | 2,616 | 2,621 | 2,548 | 2,582 | -1% | 953,400 | 5712億1450万 | -1.53% |
| 12/10 | 2,648 | 2,652 | 2,565 | 2,608 | -2.18% | 1,530,100 | 5769億6647万 | -0.91% |
| 12/09 | 2,679 | 2,693 | 2,652 | 2,666 | -0.26% | 1,113,200 | 5897億9778万 | +0.95% |
| 12/08 | 2,652 | 2,694 | 2,645 | 2,673 | +1.75% | 753,700 | 5913億4638万 | +0.91% |
| 12/05 | 2,681 | 2,687 | 2,623 | 2,627 | -2.41% | 1,104,400 | 5811億6983万 | -1.02% |
| 12/04 | 2,647 | 2,692 | 2,644 | 2,692 | +1.7% | 896,800 | 5955億4974万 | +1.16% |
| 12/03 | 2,653 | 2,669 | 2,627 | 2,647 | -1.71% | 1,040,000 | 5855億9442万 | -0.79% |
| 12/02 | 2,706 | 2,732 | 2,681 | 2,693 | -0.11% | 1,505,800 | 5957億7097万 | +0.56% |
| 12/01 | 2,726 | 2,771 | 2,683 | 2,696 | +0.56% | 1,207,400 | 5964億3466万 | +0.37% |
| 11/28 | 2,700 | 2,742 | 2,681 | 2,681 | -0.89% | 900,500 | 5931億1622万 | -0.59% |
| 11/27 | 2,710 | 2,751 | 2,697 | 2,705 | -0.18% | 943,400 | 5984億2573万 | -0.07% |
| 11/26 | 2,665 | 2,710 | 2,651 | 2,710 | +2.38% | 772,400 | 5995億3187万 | -0.33% |
| 11/25 | (5%ルール)HS Company(17.76%)エフエスシー(6.18%)MS Company(0.27%)YS Company(0.27%)里見治(1.89%)里見美恵子(0.4%) |
| 11/25 | 2,707 | 2,709 | 2,636 | 2,647 | -0.82% | 1,381,800 | 5855億9442万 | -2.93% |
| 11/21 | 2,616 | 2,670 | 2,613 | 2,669 | +2.57% | 1,137,300 | 5904億6147万 | -2.41% |
| 11/20 | 2,589 | 2,633 | 2,561 | 2,602 | +2.28% | 1,331,900 | 5756億3909万 | -5.17% |
| 11/19 | (5%ルール)HS Company(16.17%)エフエスシー(5.67%)MS Company(0.25%)YS Company(0.25%)里見治(1.73%)里見美恵子(0.37%) |
| 11/19 | 2,540 | 2,575 | 2,529 | 2,544 | +0.63% | 1,548,000 | 5628億778万 | -7.73% |
| 11/18 | 2,525 | 2,565 | 2,490 | 2,528 | -0.59% | 1,469,700 | 5592億6811万 | -8.74% |
| 11/17 | 2,502 | 2,543 | 2,484 | 2,543 | +0.71% | 1,755,800 | 5625億8655万 | -8.82% |
| 11/14 | 2,500 | 2,542 | 2,498 | 2,525 | +1.04% | 829,500 | 5586億442万 | -10.21% |
| 11/13 | (IR情報)17:30 新機種「スマスロ 甲鉄城のカバネリ 海門決戦」適合のお知らせ |
| 11/13 | 2,540 | 2,577 | 2,493 | 2,499 | -2.54% | 1,414,600 | 5528億5246万 | -11.82% |
| 11/12 | (自社株買い)取締役会(2025年5月12日)での決議状況(取得期間2025年5月13日~2025年12月31日) |
| 11/12 | 2,545 | 2,572 | 2,530 | 2,564 | +0.75% | 850,200 | 5672億3237万 | -10.22% |
| 11/11 | 2,472 | 2,566 | 2,462 | 2,545 | +2.41% | 1,472,800 | 5630億2901万 | -11.54% |
| 11/10 | 2,659 | 2,670 | 2,445 | 2,485 | -6.05% | 2,336,400 | 5497億5524万 | -14.22% |
| 11/07 | (IR情報)11:30 2026年3月期第2四半期決算プレゼンテーション |
| 11/07 | (IR情報)11:30 2026年3月期Q2決算補足データ集 |
| 11/07 | (IR情報)11:30 2026年3月期第2四半期(中間期)決算短信〔日本基準〕(連結) |
| 11/07 | 2,725 | 2,756 | 2,597 | 2,645 | -4.65% | 3,113,300 | 5851億5196万 | -9.42% |
| 11/06 | 2,860 | 2,878 | 2,774 | 2,774 | -2.08% | 846,500 | 6136億9056万 | -5.61% |
| 11/05 | 2,820 | 2,871 | 2,808 | 2,833 | +0.07% | 798,700 | 6267億4310万 | -4.06% |
| 11/04 | 2,829 | 2,846 | 2,769 | 2,831 | -0.84% | 907,600 | 6263億64万 | -4.52% |
| 10/31 | 2,818 | 2,869 | 2,810 | 2,855 | +1.42% | 1,097,600 | 6316億1015万 | -4.19% |
| 10/30 | 2,774 | 2,820 | 2,770 | 2,815 | +0.39% | 685,300 | 6227億6097万 | -5.88% |
| 10/29 | 2,807 | 2,835 | 2,792 | 2,804 | -1.61% | 874,700 | 6203億2745万 | -6.75% |
| 10/28 | 2,880 | 2,900 | 2,850 | 2,850 | -1.89% | 776,500 | 6305億400万 | -5.57% |
| 10/27 | 2,905 | 2,928 | 2,887 | 2,905 | +0.07% | 841,400 | 6426億7162万 | -4% |
| 10/24 | (IR情報)12:00 『ソニックランブル』正式サービス開始、および『ソニックレーシング クロスワールド』無料アップデート等に関するお知らせ |
| 10/24 | 2,914 | 2,942 | 2,883 | 2,903 | -1.73% | 1,196,400 | 6422億2916万 | -4.35% |
| 10/23 | 2,999 | 3,014 | 2,941 | 2,954 | +0.75% | 1,294,400 | 6535億1187万 | -2.96% |
| 10/22 | 3,014 | 3,027 | 2,931 | 2,932 | -2.66% | 898,700 | 6486億4482万 | -3.9% |
| 10/21 | 2,910 | 3,074 | 2,904 | 3,012 | +3.72% | 1,052,800 | 6663億4318万 | -1.57% |
| 10/20 | 2,937 | 2,978 | 2,889 | 2,904 | +1.33% | 976,800 | 6424億5039万 | -5.28% |
| 10/17 | 2,868 | 2,878 | 2,830 | 2,866 | -0.69% | 774,700 | 6340億4367万 | -6.86% |
| 10/16 | 2,881 | 2,917 | 2,862 | 2,886 | -0.86% | 664,700 | 6384億6826万 | -6.63% |
| 10/15 | 2,878 | 2,918 | 2,854 | 2,911 | +0.83% | 806,200 | 6439億9900万 | -6.16% |
| 10/14 | (自社株買い)取締役会(2025年5月12日)での決議状況(取得期間2025年5月13日~2025年12月31日) |
| 10/14 | 2,945 | 2,973 | 2,884 | 2,887 | -3.89% | 1,102,400 | 6386億8949万 | -7.14% |
| 10/10 | 3,050 | 3,064 | 3,000 | 3,004 | -3.13% | 795,900 | 6645億7334万 | -3.66% |
| 10/09 | 3,108 | 3,127 | 3,081 | 3,101 | +0.75% | 551,500 | 6860億3260万 | -0.61% |
| 10/08 | 3,088 | 3,144 | 3,075 | 3,078 | +0.92% | 798,400 | 6809億4432万 | -1.31% |
| 10/07 | 3,087 | 3,096 | 3,030 | 3,050 | -1.49% | 671,800 | 6747億4990万 | -2.24% |