Koppers Holdings Inc. - KOP - Stock Historical Data & Price

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 26, 2025	28.15	28.41	28.41	28.68	28.15	121,925
September 25, 2025	28.75	28.15	28.15	28.75	28.1	127,700
September 24, 2025	28.81	28.82	28.82	28.95	28.64	114,600
September 23, 2025	28.87	28.75	28.75	29.49	28.73	224,800
September 22, 2025	28.83	28.89	28.89	29.02	28.57	227,100
September 19, 2025	29.32	29	29	29.36	28.56	591,400
September 18, 2025	29.22	29.35	29.35	29.55	28.86	222,003
September 17, 2025	28.73	28.98	28.98	29.9	28.53	290,300
September 16, 2025	28.67	28.63	28.63	29.16	28.43	132,842
September 15, 2025	28.88	28.63	28.63	28.96	28.29	140,000
September 12, 2025	28.65	28.75	28.75	28.98	28.14	177,708
September 11, 2025	27.49	28.9	28.9	28.98	27.49	199,120
September 10, 2025	28.65	27.53	27.53	28.82	27.38	137,900
September 09, 2025	28.39	28.69	28.69	28.94	28.19	198,400
September 08, 2025	28.91	28.67	28.67	28.94	28.35	170,843
September 05, 2025	28.59	28.87	28.87	29.99	28.5	159,600
September 04, 2025	28.22	28.62	28.62	28.69	27.97	172,000
September 03, 2025	28.14	28.08	28.08	28.98	27.24	173,100
September 02, 2025	28.65	28.32	28.32	28.89	28.24	174,828
August 29, 2025	29.04	28.98	28.98	29.16	28.65	135,700
August 28, 2025	29.4	29.01	28.93	29.47	28.94	172,918
August 27, 2025	29.23	29.23	29.15	29.74	28.75	130,000
August 26, 2025	29.65	29.39	29.31	29.79	29.23	138,900
August 25, 2025	30.22	29.7	29.62	30.22	29.23	127,400
August 22, 2025	29.27	30.16	30.16	30.47	28.94	148,847
August 21, 2025	28.85	28.79	28.79	29.3	28.64	266,700
August 20, 2025	29.78	29.33	29.33	29.9	29.25	138,447
August 19, 2025	29.78	29.85	29.85	30.3	29.53	143,100
August 18, 2025	29.54	29.62	29.62	29.9	29.46	160,400
August 15, 2025	30.81	29.61	29.61	30.89	29.52	223,009
August 14, 2025	30.44	30.64	30.64	31.01	30.43	168,414
August 13, 2025	30	31.06	31.06	31.18	30	169,137
August 12, 2025	28.93	29.65	29.65	30.4	28.5	265,600
August 11, 2025	28.74	28.35	28.35	29.04	26.82	308,100
August 08, 2025	28.76	28.84	28.84	29.57	26.79	405,339
August 07, 2025	32.95	33.27	33.27	33.46	32.72	96,893
August 06, 2025	32.49	32.44	32.44	32.6	32.24	79,040
August 05, 2025	31.91	32.62	32.62	32.75	31.91	102,931
August 04, 2025	31.99	31.85	31.85	32.36	31.73	87,500
August 01, 2025	32.49	31.89	31.89	32.49	31.41	116,700
July 31, 2025	32.67	32.86	32.86	33.12	32.51	121,500
July 30, 2025	33.76	33.1	33.1	33.76	32.83	114,000
July 29, 2025	34.18	33.82	33.82	34.18	33.69	99,800
July 28, 2025	34.5	34.05	34.05	34.7	33.84	94,700
July 25, 2025	33.43	34.59	34.59	34.65	33.4	100,800
July 24, 2025	33.84	33.49	33.49	34.08	33.28	116,100
July 23, 2025	33.6	34.29	34.29	34.31	33.32	110,300
July 22, 2025	32.41	33	33	33.19	32.33	180,800
July 21, 2025	32.63	32.22	32.22	32.96	32.14	94,200
July 18, 2025	32.62	32.34	32.34	32.62	31.92	120,439
July 17, 2025	32.26	32.26	32.26	32.52	32.17	105,600
July 16, 2025	32.93	32.44	32.44	32.93	32.14	164,900
July 15, 2025	33.69	32.78	32.78	33.8	32.71	124,630
July 14, 2025	33.8	33.73	33.73	33.94	33.07	112,223
July 11, 2025	34.05	34.03	34.03	34.76	33.76	87,925
July 10, 2025	34.75	34.59	34.59	35.61	34.53	130,000
July 09, 2025	34.03	34.75	34.75	34.75	33.34	190,036
July 08, 2025	33.26	33.68	33.68	34.38	33	178,700
July 07, 2025	33.36	32.99	32.99	33.84	32.92	141,500
July 03, 2025	34.12	33.69	33.69	34.12	33.41	81,800

Koppers Holdings Inc. (KOP) NYSE