| 2024 |
| 09/19 | 266 | 269 | 266 | 269 | +1.13% | 25,400 | 59億1100万 | -1.47% |
| 09/18 | 263 | 266 | 263 | 266 | +1.14% | 27,700 | 58億4508万 | -2.56% |
| 09/17 | 268 | 268 | 259 | 263 | -0.75% | 94,000 | 57億7916万 | -3.66% |
| 09/13 | 266 | 266 | 265 | 265 | -1.12% | 14,600 | 58億2311万 | -2.93% |
| 09/12 | 264 | 268 | 264 | 268 | +1.9% | 25,100 | 58億8903万 | -2.19% |
| 09/11 | 267 | 268 | 260 | 263 | -1.87% | 41,000 | 57億7916万 | -3.66% |
| 09/10 | 267 | 268 | 266 | 268 | +1.13% | 19,400 | 58億8903万 | -1.83% |
| 09/09 | 261 | 265 | 260 | 265 | 0% | 41,200 | 58億2311万 | -2.57% |
| 09/06 | 268 | 269 | 264 | 265 | -1.49% | 43,700 | 58億2311万 | -2.93% |
| 09/05 | 266 | 271 | 265 | 269 | +1.13% | 103,500 | 59億1100万 | -1.82% |
| 09/04 | （自社株買い）取締役会(2024年7月31日)での決議状況(取得期間2024年8月5日～2024年12月30日) |
| 09/04 | 276 | 277 | 266 | 266 | -5.67% | 169,600 | 58億4508万 | -3.62% |
| 09/03 | 282 | 284 | 281 | 282 | +0.36% | 36,700 | 61億9666万 | +1.81% |
| 09/02 | （IR情報）12:00 自己株式取得状況に関するお知らせ |
| 09/02 | 286 | 286 | 279 | 281 | -1.75% | 81,600 | 61億7469万 | +1.08% |
| 08/30 | 281 | 286 | 280 | 286 | +1.78% | 54,300 | 62億8456万 | +2.51% |
| 08/29 | 279 | 283 | 278 | 281 | 0% | 46,200 | 61億7469万 | +0.72% |
| 08/28 | 280 | 282 | 278 | 281 | +0.36% | 33,700 | 61億7469万 | +0.36% |
| 08/27 | 274 | 281 | 274 | 280 | +1.82% | 46,500 | 61億5272万 | -0.36% |
| 08/26 | 276 | 278 | 273 | 275 | -0.36% | 57,800 | 60億4285万 | -2.48% |
| 08/23 | 275 | 277 | 274 | 276 | +0.36% | 27,000 | 60億6482万 | -2.82% |
| 08/22 | 277 | 278 | 274 | 275 | -0.72% | 44,200 | 60億4285万 | -3.51% |
| 08/21 | 276 | 277 | 275 | 277 | 0% | 29,000 | 60億8679万 | -3.15% |
| 08/20 | 274 | 278 | 274 | 277 | +1.84% | 28,800 | 60億8679万 | -3.82% |
| 08/19 | 274 | 278 | 271 | 272 | -2.16% | 88,700 | 59億7692万 | -5.88% |
| 08/16 | 281 | 281 | 277 | 278 | +0.36% | 64,100 | 61億877万 | -4.14% |
| 08/15 | 277 | 280 | 274 | 277 | +0.36% | 38,700 | 60億8679万 | -4.81% |
| 08/14 | 271 | 277 | 270 | 276 | +1.85% | 62,400 | 60億6482万 | -5.48% |
| 08/13 | 263 | 272 | 263 | 271 | +3.04% | 58,200 | 59億5495万 | -7.51% |
| 08/09 | 270 | 272 | 263 | 263 | -1.13% | 84,800 | 57億7916万 | -10.54% |
| 08/08 | 260 | 270 | 260 | 266 | +1.14% | 137,000 | 58億4508万 | -10.14% |
| 08/07 | 254 | 269 | 254 | 263 | +1.15% | 106,200 | 57億7916万 | -11.45% |
| 08/06 | （自社株買い）取締役会(2024年7月31日)での決議状況(取得期間2024年8月5日～2024年12月30日) |
| 08/06 | 254 | 267 | 254 | 260 | +8.33% | 158,900 | 57億1324万 | -13.04% |
| 08/05 | 270 | 270 | 240 | 240 | -14.89% | 298,200 | 52億7376万 | -20.27% |
| 08/02 | 289 | 289 | 279 | 282 | -4.08% | 170,000 | 61億9666万 | -6.93% |
| 08/01 | 306 | 306 | 292 | 294 | -5.77% | 242,700 | 64億6035万 | -3.29% |
| 07/31 | （IR情報）15:00 自己株式取得に係る事項の決定に関するお知らせ |
| 07/31 | （IR情報）15:00 2025年3月期第1四半期決算短信〔日本基準〕(非連結) |
| 07/31 | 301 | 313 | 300 | 312 | +4.7% | 126,100 | 68億5588万 | +2.3% |
| 07/30 | 307 | 307 | 298 | 298 | -2.93% | 189,200 | 65億4825万 | -1.97% |
| 07/29 | （5%ルール）三菱UFJ銀行（3.03%）三菱UFJアセットマネジメント（0.13%）三菱UFJ信託銀行（1.98%） |
| 07/29 | 307 | 307 | 303 | 307 | +0.99% | 26,600 | 67億4601万 | +0.66% |
| 07/26 | 301 | 305 | 301 | 304 | +1% | 37,200 | 66億8009万 | 0% |
| 07/25 | 302 | 305 | 301 | 301 | -1.63% | 42,800 | 66億1417万 | -0.99% |
| 07/24 | 307 | 308 | 304 | 306 | 0% | 43,400 | 67億2404万 | +0.33% |
| 07/23 | 305 | 307 | 304 | 306 | +0.66% | 29,200 | 67億2404万 | +0.66% |
| 07/22 | 310 | 310 | 302 | 304 | -1.62% | 110,400 | 66億8009万 | 0% |
| 07/19 | 305 | 315 | 304 | 309 | +0.65% | 274,000 | 67億8996万 | +1.64% |
| 07/18 | 307 | 308 | 305 | 307 | -0.32% | 26,100 | 67億4601万 | +0.99% |
| 07/17 | （5%ルール）住友化学（0%）住友ファーマ（2.92%） |
| 07/17 | 307 | 309 | 307 | 308 | +0.33% | 36,400 | 67億6799万 | +1.65% |
| 07/16 | 306 | 308 | 305 | 307 | +0.66% | 38,000 | 67億4601万 | +1.32% |
| 07/12 | 303 | 306 | 303 | 305 | +0.66% | 49,400 | 67億207万 | +0.66% |
| 07/11 | 301 | 305 | 300 | 303 | +1% | 73,000 | 66億5812万 | 0% |
| 07/10 | 303 | 303 | 300 | 300 | -0.66% | 51,800 | 65億9220万 | -0.99% |
| 07/09 | 303 | 304 | 302 | 302 | -0.33% | 41,800 | 66億3614万 | -0.33% |
| 07/08 | 305 | 306 | 302 | 303 | 0% | 46,400 | 66億5812万 | -0.33% |
| 07/05 | 306 | 306 | 302 | 303 | -0.66% | 35,400 | 66億5812万 | -0.33% |
| 07/04 | 303 | 305 | 302 | 305 | +0.66% | 25,500 | 67億207万 | +0.33% |
| 07/03 | 303 | 304 | 303 | 303 | 0% | 21,200 | 66億5812万 | -0.33% |
| 07/02 | 306 | 307 | 302 | 303 | -0.66% | 25,700 | 66億5812万 | -0.33% |
| 07/01 | 306 | 307 | 300 | 305 | -0.33% | 63,500 | 67億207万 | 0% |
| 06/28 | 307 | 309 | 306 | 306 | +0.33% | 39,500 | 67億2404万 | +0.33% |
| 06/27 | 307 | 308 | 305 | 305 | -0.65% | 49,900 | 67億207万 | 0% |
| 06/26 | 307 | 307 | 305 | 307 | +0.66% | 16,200 | 67億4601万 | +0.66% |
| 06/25 | 302 | 309 | 302 | 305 | +0.33% | 51,300 | 67億207万 | 0% |
| 06/24 | （IR情報）13:00 (訂正・数値データ訂正)「2024年3月期決算短信〔日本基準〕」の一部訂正について |
| 06/24 | 303 | 304 | 301 | 304 | +1% | 33,800 | 66億8009万 | -0.65% |
| 06/21 | 303 | 304 | 300 | 301 | -0.33% | 38,100 | 66億1417万 | -1.63% |
| 06/20 | 301 | 304 | 301 | 302 | -0.66% | 19,200 | 66億3614万 | -1.31% |
| 06/19 | 303 | 304 | 302 | 304 | +1.33% | 43,800 | 66億8009万 | -0.65% |
| 06/18 | 300 | 303 | 300 | 300 | +0.33% | 28,500 | 65億9220万 | -1.96% |
| 06/17 | 303 | 303 | 298 | 299 | -1.32% | 42,400 | 65億7022万 | -2.29% |
| 06/14 | 299 | 304 | 299 | 303 | +1% | 36,200 | 66億5812万 | -0.98% |
| 06/13 | 304 | 305 | 299 | 300 | -1.32% | 70,400 | 65億9220万 | -1.96% |
| 06/12 | 304 | 306 | 303 | 304 | -0.65% | 12,100 | 66億8009万 | -0.65% |
| 06/11 | 306 | 307 | 304 | 306 | +0.33% | 11,400 | 67億2404万 | 0% |
| 06/10 | 305 | 306 | 303 | 305 | +0.33% | 29,100 | 67億207万 | -0.33% |
| 06/07 | 301 | 304 | 301 | 304 | +0.66% | 24,900 | 66億8009万 | -0.65% |
| 06/06 | 305 | 306 | 301 | 302 | -0.66% | 54,500 | 66億3614万 | -1.31% |
| 06/05 | 308 | 308 | 303 | 304 | -1.62% | 55,400 | 66億8009万 | -0.65% |
| 06/04 | 307 | 310 | 305 | 309 | +0.32% | 52,900 | 67億8996万 | +0.98% |
| 06/03 | 307 | 310 | 307 | 308 | 0% | 31,400 | 67億6799万 | +0.65% |
| 05/31 | 306 | 309 | 304 | 308 | +1.32% | 33,500 | 67億6799万 | +0.65% |
| 05/30 | 306 | 306 | 303 | 304 | -0.98% | 56,400 | 66億8009万 | -0.65% |
| 05/29 | 312 | 314 | 307 | 307 | -2.23% | 57,100 | 67億4601万 | +0.66% |
| 05/28 | 314 | 316 | 311 | 314 | 0% | 97,800 | 68億9983万 | +2.95% |
| 05/27 | 310 | 314 | 308 | 314 | +2.28% | 67,100 | 68億9983万 | +3.29% |
| 05/24 | 307 | 310 | 305 | 307 | -0.65% | 66,100 | 67億4601万 | +1.32% |
| 05/23 | 311 | 311 | 307 | 309 | -0.32% | 66,200 | 67億8996万 | +2.32% |
| 05/22 | 310 | 311 | 308 | 310 | 0% | 41,400 | 68億1194万 | +2.65% |
| 05/21 | 310 | 315 | 310 | 310 | -0.64% | 83,200 | 68億1194万 | +2.99% |
| 05/20 | 302 | 314 | 302 | 312 | +3.31% | 122,200 | 68億5588万 | +3.65% |
| 05/17 | 301 | 304 | 301 | 302 | -0.33% | 51,100 | 66億3614万 | +0.33% |
| 05/16 | 308 | 308 | 300 | 303 | -0.33% | 81,000 | 66億5812万 | +0.66% |
| 05/15 | （IR情報）15:00 2024年3月期決算短信〔日本基準〕(非連結) |
| 05/15 | 303 | 304 | 300 | 304 | 0% | 94,600 | 66億8009万 | +1% |
| 05/14 | 302 | 305 | 302 | 304 | +0.33% | 35,900 | 66億8009万 | +1% |
| 05/13 | 301 | 303 | 300 | 303 | +0.33% | 42,600 | 66億5812万 | +0.66% |
| 05/10 | 304 | 305 | 302 | 302 | -0.66% | 24,300 | 66億3614万 | +0.33% |
| 05/09 | 301 | 305 | 299 | 304 | +1% | 45,700 | 66億8009万 | +1% |
| 05/08 | 302 | 305 | 301 | 301 | -0.33% | 76,300 | 66億1417万 | 0% |
| 05/07 | 304 | 304 | 301 | 302 | -0.33% | 77,000 | 66億3614万 | 0% |
| 05/02 | 305 | 305 | 300 | 303 | -0.66% | 64,200 | 66億5812万 | +0.33% |
| 05/01 | 302 | 307 | 302 | 305 | 0% | 57,200 | 67億207万 | +0.66% |
| 04/30 | 300 | 305 | 297 | 305 | +3.04% | 162,900 | 67億207万 | +0.33% |
| 04/26 | 305 | 306 | 296 | 296 | -4.21% | 310,300 | 65億430万 | -2.95% |
| 04/25 | 306 | 309 | 304 | 309 | +0.65% | 95,800 | 67億8996万 | +0.98% |
| 04/22 | （IR情報）15:00 2024年3月期通期業績予想の修正並びに配当予想の修正に関するお知らせ |
| 04/22 | （IR情報）15:00 当社の財務及び事業の方針の決定を支配する者の在り方に関する基本方針の一部変更及び継続の決定に関するお知らせ |
