Koppers Holdings Inc. Common Stock (KOP)

Historical Prices For Koppers Holdings Inc. Common Stock (KOP)

Date Range:

2025-09-04 - 2025-12-04

Date	Open	High	Low	Close	Volume	Adjusted Close
12/03/2025	29.24	29.71	28.80	29.20	105,850	29.20
12/02/2025	29.77	29.77	28.92	29.22	133,599	29.22
12/01/2025	29.43	30.08	29.43	29.62	90,220	29.62
11/28/2025	29.62	29.91	29.40	29.67	94,336	29.67
11/26/2025	29.55	30.35	29.55	29.70	196,041	29.62
11/25/2025	28.75	30.13	28.70	29.89	195,246	29.81
11/24/2025	28.26	28.64	27.70	28.55	166,040	28.47
11/21/2025	27.40	28.81	27.23	28.21	206,074	28.13
11/20/2025	28.09	28.43	27.18	27.29	98,566	27.22
11/19/2025	27.97	28.04	27.46	27.74	141,305	27.67
11/18/2025	27.72	28.48	27.49	27.93	160,715	27.85
11/17/2025	28.98	28.99	27.84	27.86	186,360	27.79
11/14/2025	29.34	29.75	28.51	28.94	234,877	28.86
11/13/2025	28.43	29.58	28.14	29.39	196,708	29.31
11/12/2025	28.44	28.95	28.18	28.55	172,066	28.47
11/11/2025	27.89	28.37	27.37	28.30	227,558	28.22
11/10/2025	27.00	27.89	26.02	27.70	182,217	27.63
11/07/2025	28.65	28.65	25.00	26.70	212,905	26.63
11/06/2025	28.15	30.00	27.74	27.84	174,463	27.77
11/05/2025	28.07	28.61	27.77	28.05	182,871	27.97
11/04/2025	27.86	28.48	26.93	28.24	135,153	28.16
11/03/2025	28.01	28.39	27.52	28.17	174,055	28.09
10/31/2025	27.58	28.39	27.09	28.22	162,525	28.14
10/30/2025	28.67	28.67	27.26	27.61	162,622	27.54
10/29/2025	29.38	29.82	29.38	29.25	219,546	29.17
10/28/2025	29.19	29.59	28.82	29.37	139,406	29.29
10/27/2025	29.36	29.63	28.96	29.41	152,016	29.33
10/24/2025	29.12	29.44	29.07	29.14	85,607	29.06
10/23/2025	28.62	29.04	28.30	28.72	104,674	28.64
10/22/2025	28.00	28.44	27.93	28.38	145,003	28.30
10/21/2025	27.02	28.03	27.00	27.99	153,347	27.91
10/20/2025	26.92	27.14	26.57	27.01	119,397	26.94
10/17/2025	26.51	26.89	26.45	26.74	131,171	26.67
10/16/2025	26.49	26.74	26.17	26.74	116,367	26.67
10/15/2025	26.90	27.39	26.26	26.43	101,852	26.36
10/14/2025	26.38	26.99	26.38	26.69	94,669	26.62
10/13/2025	26.74	26.94	26.55	26.74	146,680	26.67
10/10/2025	26.54	26.84	26.16	26.35	181,320	26.28
10/09/2025	26.60	26.79	26.34	26.50	190,956	26.43
10/08/2025	26.64	26.65	26.30	26.59	114,814	26.52
10/07/2025	26.75	27.13	26.37	26.47	153,085	26.40
10/06/2025	27.14	27.14	26.22	26.74	175,209	26.67
10/03/2025	27.14	27.49	26.91	27.00	157,808	26.93
10/02/2025	27.79	28.07	26.91	26.94	137,841	26.87
10/01/2025	27.74	27.98	27.46	27.90	135,347	27.82
9/30/2025	27.57	28.22	27.39	28.00	123,755	27.92
9/29/2025	28.60	28.63	27.75	27.75	138,789	27.68
9/26/2025	28.15	28.68	28.15	28.41	125,501	28.33
9/25/2025	28.75	28.75	28.10	28.15	127,678	28.07
9/24/2025	28.81	28.95	28.64	28.82	114,550	28.74
9/23/2025	28.87	29.49	28.73	28.75	224,766	28.67
9/22/2025	28.83	29.02	28.57	28.89	227,062	28.81
9/19/2025	29.32	29.36	28.55	29.00	591,356	28.92
9/18/2025	29.22	29.55	28.86	29.35	222,003	29.27
9/17/2025	28.73	29.90	28.53	28.98	290,260	28.90
9/16/2025	28.67	29.16	28.43	28.63	132,842	28.55
9/15/2025	28.88	28.96	28.29	28.63	139,985	28.55
9/12/2025	28.65	28.98	28.14	28.75	177,708	28.67
9/11/2025	27.49	28.98	27.49	28.90	199,120	28.82
9/10/2025	28.65	28.82	27.38	27.53	137,870	27.46
9/09/2025	28.39	28.93	28.19	28.69	198,366	28.61
9/08/2025	28.91	28.93	28.35	28.67	170,843	28.59
9/05/2025	28.59	29.99	28.50	28.87	159,568	28.79
9/04/2025	28.22	28.69	27.96	28.62	171,977	28.54