Koppers Holdings Inc. Common Stock (KOP)

Last Price29.97

Change-9.67 (-24.39%)

NYSE · Last Trade: Nov 7th, 1:42 PM EST

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

Date Range:

2026-08-07 - 2026-11-07

Date	Open	High	Low	Close	Volume	Adjusted Close
11/06/2026	29.46	33.51	26.86	29.97	354,352	29.97
11/05/2026	43.35	43.36	38.98	39.64	164,689	39.64
11/04/2026	42.69	43.03	42.11	42.89	117,668	42.89
11/03/2026	42.16	42.16	40.85	41.80	141,854	41.80
11/02/2026	42.03	42.53	41.63	41.83	127,288	41.83
10/30/2026	41.71	41.99	40.92	41.50	107,567	41.50
10/29/2026	42.51	42.84	41.66	41.86	101,651	41.86
10/28/2026	41.56	42.29	41.30	42.08	141,367	42.08
10/27/2026	40.13	41.80	39.87	41.44	173,169	41.44
10/26/2026	40.27	41.13	39.73	39.83	117,391	39.83
10/23/2026	40.37	40.75	39.31	40.18	216,943	40.18
10/22/2026	40.98	41.51	40.48	40.75	173,321	40.75
10/21/2026	41.96	41.96	40.93	41.34	333,659	41.34
10/20/2026	43.08	43.56	41.62	41.70	101,562	41.70
10/19/2026	43.43	43.77	42.82	42.91	100,290	42.91
10/16/2026	43.31	44.20	43.06	43.32	107,920	43.32
10/15/2026	43.92	44.39	43.14	43.44	110,586	43.44
10/14/2026	43.92	44.23	43.12	43.67	116,618	43.67
10/13/2026	43.09	44.43	42.69	44.41	144,418	44.41
10/12/2026	42.92	43.60	42.92	43.10	115,129	43.10
10/09/2026	44.22	44.22	42.88	43.41	134,141	43.41
10/08/2026	43.71	45.06	43.71	44.24	164,792	44.24
10/07/2026	45.21	45.53	43.75	43.88	140,091	43.88
10/06/2026	47.35	47.45	45.97	46.03	141,370	46.03
10/05/2026	45.88	47.79	45.51	47.04	282,101	47.04
10/02/2026	45.81	46.39	45.31	46.04	158,975	46.04
10/01/2026	45.20	45.46	44.33	45.19	196,747	45.19
9/30/2026	46.34	46.34	45.46	45.59	150,734	45.59
9/29/2026	46.26	46.44	45.52	46.08	103,986	46.08
9/28/2026	46.06	46.98	45.95	46.17	102,955	46.17
9/25/2026	46.00	46.51	45.51	46.27	100,557	46.27
9/24/2026	46.34	46.45	45.55	45.96	108,108	45.96
9/23/2026	45.98	46.42	45.09	46.26	126,608	46.26
9/22/2026	45.90	46.90	45.82	46.10	171,676	46.10
9/21/2026	45.72	46.31	45.19	45.61	142,289	45.61
9/18/2026	45.98	45.98	44.83	45.33	470,797	45.33
9/17/2026	47.42	47.42	45.83	46.18	179,600	46.18
9/16/2026	45.99	47.64	45.69	46.72	314,674	46.72
9/15/2026	46.12	46.40	45.43	45.79	155,135	45.79
9/14/2026	45.92	46.20	45.27	46.00	121,252	46.00
9/11/2026	46.62	47.00	46.19	46.35	119,704	46.35
9/10/2026	45.96	46.94	45.71	46.35	139,460	46.35
9/09/2026	47.20	47.29	45.73	46.06	138,566	46.06
9/08/2026	47.94	47.94	46.73	47.12	179,236	47.12
9/04/2026	46.57	47.83	46.22	47.78	174,221	47.78
9/03/2026	47.25	47.43	46.16	46.86	170,091	46.86
9/02/2026	45.84	47.94	45.42	46.72	205,503	46.72
9/01/2026	45.28	46.08	44.49	45.93	227,318	45.93
8/31/2026	47.10	47.60	45.76	45.87	160,881	45.87
8/28/2026	46.74	47.00	46.00	46.56	117,709	46.56
8/27/2026	46.05	46.63	45.35	46.32	112,910	46.23
8/26/2026	46.56	47.09	45.92	46.34	149,231	46.25
8/25/2026	45.87	46.62	44.81	46.13	108,674	46.04
8/24/2026	45.43	46.00	44.89	45.83	145,673	45.74
8/21/2026	45.88	46.73	44.16	45.19	313,680	45.10
8/20/2026	44.47	46.27	44.47	45.88	194,312	45.79
8/19/2026	45.72	47.02	44.76	44.90	157,277	44.81
8/18/2026	47.29	47.82	45.15	45.44	162,791	45.35
8/17/2026	47.05	47.56	46.13	47.45	167,453	47.36
8/14/2026	46.14	47.41	45.89	47.14	220,390	47.05
8/13/2026	45.36	46.72	44.91	46.22	259,227	46.13
8/12/2026	46.38	46.74	44.10	45.34	344,686	45.25
8/11/2026	50.00	50.20	45.77	46.01	301,023	45.92
8/10/2026	51.01	51.49	49.62	50.54	200,380	50.44
8/07/2026	51.15	51.31	48.80	51.24	478,657	51.14