Koppers Holdings Inc. Common Stock (KOP)

Last Price44.90

Change-0.46 (-1.01%)

NYSE· Last Trade: Jun 30th, 11:26 PM EDT

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

Date Range:

2026-04-01 - 2026-07-01

Date	Open	High	Low	Close	Volume	Adjusted Close
6/30/2026	45.09	45.54	44.65	44.90	123,243	44.90
6/29/2026	44.88	45.45	43.95	45.36	157,783	45.36
6/26/2026	44.33	45.13	44.01	45.12	322,157	45.12
6/25/2026	44.45	44.75	43.68	44.70	154,787	44.70
6/24/2026	42.94	44.36	42.77	43.88	157,427	43.88
6/23/2026	43.80	43.90	42.78	42.90	136,011	42.90
6/22/2026	43.49	44.46	42.65	44.42	291,812	44.42
6/18/2026	43.94	44.74	43.41	43.73	385,865	43.73
6/17/2026	44.53	45.44	43.64	43.65	153,451	43.65
6/16/2026	44.65	45.33	44.26	44.50	183,888	44.50
6/15/2026	44.07	44.55	43.63	44.40	183,946	44.40
6/12/2026	41.92	43.66	41.87	43.41	160,823	43.41
6/11/2026	42.17	42.17	40.81	41.52	110,470	41.52
6/10/2026	41.70	42.31	41.49	41.68	167,193	41.68
6/09/2026	41.90	42.59	40.80	41.86	145,684	41.86
6/08/2026	41.22	41.76	40.62	41.22	178,072	41.22
6/05/2026	42.04	42.38	40.62	40.81	167,243	40.81
6/04/2026	43.36	43.57	41.72	42.16	272,194	42.16
6/03/2026	42.09	43.52	41.88	43.09	230,141	43.09
6/02/2026	41.17	42.61	40.63	42.48	124,516	42.48
6/01/2026	40.58	41.29	40.20	41.19	114,972	41.19
5/29/2026	40.97	41.36	40.64	40.80	228,452	40.80
5/28/2026	42.46	42.61	41.10	41.29	107,932	41.29
5/27/2026	41.70	42.77	41.70	42.73	141,990	42.73
5/26/2026	41.57	42.00	40.84	41.54	174,078	41.54
5/22/2026	40.05	40.58	39.54	40.36	120,134	40.36
5/21/2026	38.56	39.66	38.50	39.63	150,847	39.63
5/20/2026	38.22	39.49	38.14	39.20	160,698	39.20
5/19/2026	39.86	39.96	38.13	38.31	223,632	38.31
5/18/2026	40.73	41.96	40.39	40.39	204,428	40.39
5/15/2026	42.23	42.23	40.33	40.68	233,653	40.68
5/14/2026	43.23	43.88	41.94	42.41	367,473	42.41
5/13/2026	43.77	44.67	42.30	42.69	294,097	42.69
5/12/2026	42.99	44.10	42.42	43.55	328,907	43.55
5/11/2026	44.00	44.00	41.91	43.08	253,108	43.08
5/08/2026	44.38	46.40	42.45	43.99	334,017	43.99
5/07/2026	41.49	42.41	41.09	41.16	176,879	41.16
5/06/2026	41.80	42.04	40.18	41.61	102,791	41.61
5/05/2026	40.04	41.89	39.50	41.35	121,112	41.35
5/04/2026	41.70	41.73	39.50	39.84	148,470	39.84
5/01/2026	41.09	41.93	41.00	41.91	145,904	41.91
4/30/2026	39.73	41.06	39.73	40.83	109,595	40.83
4/29/2026	41.61	41.61	39.75	39.80	166,537	39.80
4/28/2026	41.50	42.17	40.91	41.46	193,660	41.46
4/27/2026	40.47	41.42	40.31	41.35	153,692	41.35
4/24/2026	39.00	40.49	38.85	40.28	168,992	40.28
4/23/2026	38.12	38.80	37.66	38.65	129,034	38.65
4/22/2026	38.06	38.06	37.42	38.01	83,166	38.01
4/21/2026	37.58	38.19	36.74	37.52	150,686	37.52
4/20/2026	37.58	37.96	37.35	37.44	71,676	37.44
4/17/2026	36.92	38.13	36.56	37.69	161,847	37.69
4/16/2026	37.35	37.85	36.77	36.98	125,415	36.98
4/15/2026	38.27	38.27	37.43	37.54	102,119	37.54
4/14/2026	38.28	38.89	37.90	38.44	122,342	38.44
4/13/2026	37.46	38.46	37.13	38.42	118,010	38.42
4/10/2026	37.07	37.50	37.07	37.44	87,578	37.44
4/09/2026	37.21	37.61	36.70	37.04	147,547	37.04
4/08/2026	37.20	37.50	36.93	37.36	186,732	37.36
4/07/2026	35.75	36.73	35.62	36.67	217,680	36.67
4/06/2026	37.18	37.19	35.68	35.79	212,520	35.79
4/02/2026	36.94	37.84	36.31	37.29	237,321	37.29
4/01/2026	38.59	38.93	37.54	37.65	200,581	37.65