| 2026 |
| 06/02 | 233 | 242 | 232 | 240 | +3.45% | 111,500 | 67億8662万 | -12.09% |
| 06/01 | 243 | 243 | 232 | 232 | -4.13% | 221,500 | 65億6040万 | -15.64% |
| 05/29 | 247 | 250 | 242 | 242 | -0.41% | 72,600 | 68億4318万 | -12.95% |
| 05/28 | （IR情報）15:30 (訂正・数値データ訂正)「2026年3月期決算短信〔日本基準〕(連結)」の一部訂正について |
| 05/28 | 250 | 250 | 241 | 243 | -0.82% | 106,900 | 68億7146万 | -13.21% |
| 05/27 | 240 | 250 | 239 | 245 | +1.66% | 98,500 | 69億2801万 | -13.12% |
| 05/27 | （空売り報告）Nomura International plc 139,238株（0.49%）-0.01%義務消失 |
| 05/26 | 242 | 245 | 239 | 241 | -0.41% | 122,400 | 68億1490万 | -15.44% |
| 05/26 | （空売り報告）Nomura International plc 142,443株（0.5%）新規 |
| 05/25 | 251 | 252 | 240 | 242 | -3.97% | 209,900 | 68億4318万 | -15.68% |
| 05/22 | 244 | 253 | 244 | 252 | +2.86% | 110,400 | 71億2596万 | -13.1% |
| 05/21 | 246 | 251 | 243 | 245 | 0% | 262,500 | 69億2801万 | -15.81% |
| 05/20 | 256 | 256 | 244 | 245 | -4.67% | 430,600 | 69億2801万 | -16.67% |
| 05/19 | 264 | 264 | 256 | 257 | -1.91% | 320,800 | 72億6734万 | -13.18% |
| 05/18 | 276 | 276 | 258 | 262 | -16.03% | 366,800 | 74億873万 | -12.08% |
| 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 通期連結業績予想と実績値との差異、通期個別業績の前期実績値との差異並びに営業外収益および営業外費用の計上に関するお知らせ |
| 05/15 | 313 | 322 | 310 | 312 | 0% | 81,400 | 88億2261万 | +4% |
| 05/14 | 315 | 318 | 307 | 312 | 0% | 85,000 | 88億2261万 | +4.35% |
| 05/13 | （5%ルール）みずほ信託銀行（0.27%）みずほ銀行（44.32%）アセットマネジメントOne（0.39%） |
| 05/13 | 298 | 316 | 297 | 312 | +4.7% | 83,700 | 88億2261万 | +4.35% |
| 05/12 | 300 | 305 | 298 | 298 | -0.67% | 43,400 | 84億2673万 | 0% |
| 05/11 | 293 | 302 | 291 | 300 | +2.74% | 90,400 | 84億8328万 | +0.33% |
| 05/08 | 298 | 301 | 289 | 292 | -2.01% | 76,300 | 82億5706万 | -2.34% |
| 05/07 | 288 | 303 | 288 | 298 | +3.47% | 75,300 | 84億2673万 | -0.33% |
| 05/01 | 288 | 291 | 284 | 288 | 0% | 55,100 | 81億4395万 | -4% |
| 04/30 | 292 | 295 | 288 | 288 | -3.03% | 65,400 | 81億4395万 | -4.32% |
| 04/28 | 300 | 300 | 294 | 297 | +1.02% | 31,900 | 83億9845万 | -1.66% |
| 04/27 | 296 | 296 | 291 | 294 | +1.38% | 37,500 | 83億1362万 | -2.65% |
| 04/24 | 291 | 294 | 287 | 290 | -0.34% | 118,200 | 82億50万 | -3.97% |
| 04/23 | 296 | 296 | 290 | 291 | -1.69% | 111,900 | 82億2878万 | -3.96% |
| 04/22 | 298 | 300 | 296 | 296 | -0.67% | 43,700 | 83億7017万 | -2.63% |
| 04/21 | 304 | 304 | 298 | 298 | -0.67% | 33,800 | 84億2673万 | -2.3% |
| 04/20 | 306 | 306 | 299 | 300 | -0.99% | 39,600 | 84億8328万 | -1.64% |
| 04/17 | 303 | 307 | 300 | 303 | -2.26% | 61,300 | 85億6811万 | -0.98% |
| 04/16 | 306 | 310 | 305 | 310 | +2.65% | 49,800 | 87億6606万 | +0.98% |
| 04/15 | 302 | 308 | 301 | 302 | +1.68% | 78,700 | 85億3984万 | -1.63% |
| 04/14 | 300 | 301 | 296 | 297 | 0% | 25,800 | 83億9845万 | -3.57% |
| 04/13 | 301 | 303 | 295 | 297 | -1.66% | 70,000 | 83億9845万 | -3.57% |
| 04/10 | 306 | 308 | 301 | 302 | -0.66% | 32,800 | 85億3984万 | -2.27% |
| 04/09 | 313 | 313 | 304 | 304 | -2.56% | 29,700 | 85億9639万 | -1.94% |
| 04/08 | 308 | 312 | 304 | 312 | +4% | 72,100 | 88億2261万 | +0.65% |
| 04/07 | 304 | 307 | 299 | 300 | -1.32% | 53,000 | 84億8328万 | -3.54% |
| 04/06 | 300 | 305 | 300 | 304 | +1% | 52,500 | 85億9639万 | -2.56% |
| 04/03 | 301 | 304 | 298 | 301 | +1.69% | 48,300 | 85億1156万 | -4.14% |
| 04/02 | 310 | 310 | 296 | 296 | -3.27% | 143,700 | 83億7017万 | -6.33% |
| 04/01 | （IR情報）17:00 THAI KOITO COMPANY LIMITED 様より３年連続で「優秀品質賞」を受賞 |
| 04/01 | 306 | 309 | 302 | 306 | +0.99% | 69,500 | 86億5295万 | -3.47% |
| 03/31 | （IR情報）16:10 当社の上場維持基準への適合状況について |
| 03/31 | （IR情報）16:10 当社株式の監理銘柄(審査中)指定に関するお知らせ |
| 03/31 | 297 | 303 | 293 | 303 | +1.34% | 44,900 | 85億6811万 | -5.02% |
| 03/30 | 298 | 299 | 293 | 299 | -4.78% | 141,600 | 84億5500万 | -6.56% |
| 03/27 | 312 | 315 | 307 | 314 | +0.96% | 58,500 | 88億7917万 | -2.48% |
| 03/26 | 317 | 317 | 308 | 311 | -1.58% | 61,200 | 87億9433万 | -3.72% |
| 03/25 | 312 | 316 | 298 | 316 | +3.95% | 109,700 | 89億3572万 | -2.77% |
| 03/24 | 305 | 308 | 297 | 304 | +2.36% | 143,700 | 85億9639万 | -6.75% |
| 03/23 | 305 | 308 | 292 | 297 | -3.57% | 161,500 | 83億9845万 | -9.45% |
| 03/19 | 316 | 318 | 308 | 308 | -4.35% | 45,200 | 87億950万 | -6.67% |
| 03/18 | 315 | 322 | 315 | 322 | +3.21% | 38,200 | 91億539万 | -3.01% |
| 03/17 | 316 | 321 | 312 | 312 | -1.27% | 55,400 | 88億2261万 | -6.31% |
| 03/16 | （IR情報）17:00 日立情報通信エンジニアリング様より「Excellent Partner Award」を受賞 |
| 03/16 | 315 | 319 | 312 | 316 | 0% | 52,000 | 89億3572万 | -5.39% |
| 03/13 | 315 | 318 | 315 | 316 | -0.94% | 55,000 | 89億3572万 | -5.95% |
| 03/12 | 323 | 323 | 316 | 319 | -1.54% | 55,500 | 90億2056万 | -5.34% |
| 03/11 | （IR情報）17:00 UMCグループ全拠点で「IATF16949」（自動車産業向け品質マネジメントシステム規格）認証取得 |
| 03/11 | 322 | 328 | 322 | 324 | +1.57% | 43,700 | 91億6194万 | -4.14% |
| 03/10 | 313 | 320 | 309 | 319 | +5.63% | 96,400 | 90億2056万 | -5.62% |
| 03/09 | 308 | 309 | 299 | 302 | -5.63% | 238,500 | 85億3984万 | -10.91% |
| 03/06 | 321 | 326 | 318 | 320 | -1.54% | 51,000 | 90億4883万 | -5.88% |
| 03/05 | 322 | 327 | 321 | 325 | +5.18% | 140,000 | 91億9022万 | -4.69% |
| 03/04 | 320 | 320 | 305 | 309 | -5.79% | 370,300 | 87億3778万 | -9.65% |
| 03/03 | 338 | 339 | 328 | 328 | -2.67% | 210,400 | 92億7505万 | -4.37% |
| 03/02 | 344 | 344 | 337 | 337 | -3.44% | 84,700 | 95億2955万 | -2.03% |
| 02/27 | 337 | 349 | 335 | 349 | +3.56% | 158,700 | 98億6888万 | +1.16% |
| 02/26 | 340 | 342 | 337 | 337 | -0.88% | 73,500 | 95億2955万 | -2.32% |
| 02/25 | 339 | 343 | 339 | 340 | +0.29% | 48,200 | 96億1439万 | -1.45% |
| 02/24 | 338 | 343 | 334 | 339 | +0.89% | 71,200 | 95億8611万 | -2.02% |
| 02/20 | 343 | 343 | 334 | 336 | -2.33% | 112,400 | 95億128万 | -2.89% |
| 02/19 | 347 | 347 | 337 | 344 | -0.29% | 95,400 | 97億2750万 | -0.58% |
| 02/18 | 350 | 355 | 343 | 345 | -1.43% | 96,900 | 97億5577万 | -0.58% |
| 02/17 | 347 | 353 | 345 | 350 | +0.57% | 98,700 | 98億9716万 | +0.86% |
| 02/16 | 345 | 352 | 344 | 348 | 0% | 50,900 | 98億4061万 | +0.29% |
| 02/13 | 356 | 359 | 344 | 348 | -4.4% | 172,000 | 98億4061万 | +0.29% |
| 02/12 | （IR情報）15:30 2026年3月期第3四半期決算短信〔日本基準〕(連結) |
| 02/12 | 353 | 364 | 353 | 364 | +2.82% | 202,300 | 102億9305万 | +4.9% |
| 02/10 | （IR情報）17:00 富士フイルムビジネスイノベーション様より「Premiere Partner」に２年連続で認定 |
| 02/10 | 347 | 355 | 347 | 354 | +2.31% | 55,300 | 100億1027万 | +2.31% |
| 02/09 | 349 | 349 | 345 | 346 | 0% | 70,800 | 97億8405万 | 0% |
| 02/06 | 344 | 346 | 337 | 346 | +0.58% | 62,100 | 97億8405万 | 0% |
| 02/05 | 341 | 347 | 341 | 344 | +0.58% | 51,000 | 97億2750万 | -0.29% |
| 02/04 | 338 | 344 | 338 | 342 | 0% | 50,700 | 96億7094万 | -0.87% |
| 02/03 | 341 | 343 | 337 | 342 | +2.09% | 44,200 | 96億7094万 | -0.87% |
| 02/02 | 345 | 349 | 334 | 335 | -2.05% | 112,900 | 94億7300万 | -2.62% |
| 01/30 | 335 | 344 | 335 | 342 | +1.48% | 91,500 | 96億7094万 | -0.58% |
| 01/29 | 339 | 340 | 331 | 337 | -0.3% | 89,900 | 95億2955万 | -2.03% |
| 01/28 | （IR情報）17:00 UMCグループ各拠点の社会貢献活動について ～UMCタイ～ |
| 01/28 | 339 | 341 | 332 | 338 | -0.88% | 163,800 | 95億5783万 | -1.74% |
| 01/27 | 342 | 346 | 336 | 341 | -0.29% | 150,200 | 96億4266万 | -0.87% |
| 01/26 | 350 | 350 | 340 | 342 | -3.93% | 215,900 | 96億7094万 | -0.58% |
| 01/23 | 363 | 365 | 351 | 356 | -0.84% | 131,500 | 100億6683万 | +3.49% |
| 01/22 | （IR情報）17:00 Formlabs様より「Supplier Excellence Award」を受賞 |
| 01/22 | 350 | 361 | 348 | 359 | +3.76% | 245,700 | 101億5166万 | +4.36% |
| 01/21 | （IR情報）17:00 UMCエレクトロニクスにおいて人財マネジメントシステム「タレントパレット」導入のお知らせ |
| 01/21 | 346 | 350 | 340 | 346 | -1.14% | 164,100 | 97億8405万 | +0.58% |
| 01/20 | 344 | 352 | 342 | 350 | +1.16% | 158,200 | 98億9716万 | +1.74% |
| 01/19 | 342 | 347 | 335 | 346 | +0.87% | 203,500 | 97億8405万 | 0% |
| 01/16 | 351 | 354 | 338 | 343 | -1.72% | 262,700 | 96億9922万 | -1.15% |
| 01/15 | 347 | 351 | 344 | 349 | -0.57% | 144,500 | 98億6888万 | -0.57% |
| 01/14 | 352 | 354 | 347 | 351 | -1.13% | 158,100 | 99億2544万 | 0% |
| 01/13 | 358 | 360 | 341 | 355 | 0% | 231,900 | 100億3855万 | +2.01% |
| 01/09 | 353 | 369 | 351 | 355 | +0.85% | 376,800 | 100億3855万 | +2.9% |
| 01/08 | 344 | 356 | 338 | 352 | +2.33% | 233,000 | 99億5372万 | +2.92% |
| 01/07 | 347 | 354 | 340 | 344 | -0.86% | 209,200 | 97億2750万 | +1.47% |
| 01/06 | 339 | 347 | 337 | 347 | +2.36% | 179,700 | 98億1233万 | +3.27% |
| 01/05 | 346 | 349 | 337 | 339 | 0% | 161,300 | 95億8611万 | +1.5% |
| 2025 |
| 12/30 | 331 | 354 | 331 | 339 | +0.89% | 291,900 | 95億8611万 | +2.42% |
10年以上蓄積したファイナンスデータとAIを掛け合わせて、投資の意思決定を加速させるポジションです。
