Koppers Holdings Inc. Common Stock (KOP)

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

Date Range:

2025-06-03 - 2025-09-03

Date	Open	High	Low	Close	Volume	Adjusted Close
9/02/2025	28.65	28.89	28.24	28.32	174,828	28.32
8/29/2025	29.04	29.16	28.64	28.98	135,657	28.98
8/28/2025	29.40	29.46	28.93	29.01	172,918	28.93
8/27/2025	29.23	29.73	28.75	29.23	129,990	29.15
8/26/2025	29.65	29.79	29.23	29.39	138,870	29.31
8/25/2025	30.22	30.21	29.23	29.70	127,390	29.62
8/22/2025	29.27	30.47	28.93	30.16	148,847	30.08
8/21/2025	28.85	29.30	28.64	28.79	266,681	28.71
8/20/2025	29.78	29.90	29.25	29.33	138,447	29.25
8/19/2025	29.78	30.30	29.53	29.85	143,088	29.77
8/18/2025	29.54	29.90	29.45	29.62	160,388	29.54
8/15/2025	30.81	30.89	29.52	29.61	223,009	29.53
8/14/2025	30.44	31.01	30.43	30.64	168,414	30.56
8/13/2025	30.00	31.18	30.00	31.06	169,137	30.97
8/12/2025	28.93	30.40	28.50	29.65	265,579	29.57
8/11/2025	28.74	29.04	26.82	28.35	308,064	28.27
8/08/2025	28.76	29.57	26.79	28.84	405,339	28.76
8/07/2025	32.95	33.46	32.72	33.27	96,893	33.18
8/06/2025	32.49	32.60	32.24	32.44	79,040	32.35
8/05/2025	31.91	32.75	31.91	32.62	102,931	32.53
8/04/2025	31.99	32.36	31.73	31.85	87,478	31.76
8/01/2025	32.49	32.49	31.41	31.89	116,697	31.80
7/31/2025	32.67	33.12	32.51	32.86	121,450	32.77
7/30/2025	33.76	33.76	32.83	33.10	113,950	33.01
7/29/2025	34.18	34.18	33.69	33.82	99,793	33.73
7/28/2025	34.50	34.70	33.84	34.05	94,690	33.96
7/25/2025	33.43	34.65	33.40	34.59	100,772	34.49
7/24/2025	33.84	34.08	33.28	33.49	116,093	33.40
7/23/2025	33.60	34.31	33.31	34.29	110,269	34.20
7/22/2025	32.41	33.19	32.33	33.00	180,766	32.91
7/21/2025	32.63	32.96	32.14	32.22	94,166	32.13
7/18/2025	32.62	32.62	31.92	32.34	120,439	32.25
7/17/2025	32.26	32.52	32.16	32.26	105,557	32.17
7/16/2025	32.93	32.93	32.13	32.44	164,871	32.35
7/15/2025	33.69	33.80	32.71	32.78	124,630	32.69
7/14/2025	33.80	33.94	33.07	33.73	112,223	33.64
7/11/2025	34.05	34.76	33.76	34.03	87,925	33.94
7/10/2025	34.75	35.61	34.52	34.59	129,968	34.49
7/09/2025	34.03	34.75	33.34	34.75	190,026	34.65
7/08/2025	33.26	34.38	33.00	33.68	178,694	33.59
7/07/2025	33.36	33.84	32.92	32.99	141,474	32.90
7/03/2025	34.12	34.12	33.41	33.69	81,766	33.60
7/02/2025	33.44	34.20	33.03	34.10	157,412	34.01
7/01/2025	31.97	33.76	31.95	33.23	156,272	33.14
6/30/2025	32.68	32.98	31.55	32.15	112,586	32.06
6/27/2025	31.91	32.84	31.90	32.75	319,181	32.66
6/26/2025	31.78	32.02	31.54	31.79	117,023	31.70
6/25/2025	32.29	32.46	31.61	31.67	107,123	31.58
6/24/2025	32.01	32.53	31.98	32.30	100,186	32.21
6/23/2025	31.24	31.81	30.90	31.79	77,803	31.70
6/20/2025	31.30	31.39	30.79	31.30	205,373	31.21
6/18/2025	31.52	31.86	31.09	31.15	74,567	31.06
6/17/2025	31.40	32.09	31.31	31.62	82,816	31.53
6/16/2025	32.27	32.40	31.57	31.85	123,451	31.76
6/13/2025	32.13	32.48	31.80	31.91	71,273	31.82
6/12/2025	32.92	33.02	32.43	32.73	79,826	32.64
6/11/2025	33.58	33.58	33.09	33.32	101,562	33.23
6/10/2025	33.15	33.51	32.56	33.26	114,085	33.17
6/09/2025	32.65	33.31	32.21	32.88	122,374	32.79
6/06/2025	32.14	32.33	31.97	32.19	77,151	32.10
6/05/2025	31.54	32.00	31.14	31.58	123,278	31.49
6/04/2025	31.24	31.79	31.24	31.45	103,464	31.36
6/03/2025	30.57	31.43	30.53	31.25	91,082	31.16