Koppers Holdings Inc. Common Stock (KOP)

Last Price42.48

Change+1.29 (3.13%)

NYSE· Last Trade: Jun 2nd, 7:31 PM EDT

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

Date Range:

2026-03-02 - 2026-06-02

Date	Open	High	Low	Close	Volume	Adjusted Close
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	41.20
5/27/2026	41.70	42.77	41.70	42.73	141,990	42.64
5/26/2026	41.57	42.00	40.84	41.54	174,078	41.45
5/22/2026	40.05	40.58	39.54	40.36	120,134	40.27
5/21/2026	38.56	39.66	38.50	39.63	150,847	39.54
5/20/2026	38.22	39.49	38.14	39.20	160,698	39.11
5/19/2026	39.86	39.96	38.13	38.31	223,632	38.23
5/18/2026	40.73	41.96	40.39	40.39	204,428	40.30
5/15/2026	42.23	42.23	40.33	40.68	233,653	40.59
5/14/2026	43.23	43.88	41.94	42.41	367,473	42.32
5/13/2026	43.77	44.67	42.30	42.69	294,097	42.60
5/12/2026	42.99	44.10	42.42	43.55	328,907	43.46
5/11/2026	44.00	44.00	41.91	43.08	253,108	42.99
5/08/2026	44.38	46.40	42.45	43.99	334,017	43.89
5/07/2026	41.49	42.41	41.09	41.16	176,879	41.07
5/06/2026	41.80	42.04	40.18	41.61	102,791	41.52
5/05/2026	40.04	41.89	39.50	41.35	121,112	41.26
5/04/2026	41.70	41.73	39.50	39.84	148,470	39.75
5/01/2026	41.09	41.93	41.00	41.91	145,904	41.82
4/30/2026	39.73	41.06	39.73	40.83	109,595	40.74
4/29/2026	41.61	41.61	39.75	39.80	166,537	39.71
4/28/2026	41.50	42.17	40.91	41.46	193,660	41.37
4/27/2026	40.47	41.42	40.31	41.35	153,692	41.26
4/24/2026	39.00	40.49	38.85	40.28	168,992	40.19
4/23/2026	38.12	38.80	37.66	38.65	129,034	38.57
4/22/2026	38.06	38.06	37.42	38.01	83,166	37.93
4/21/2026	37.58	38.19	36.74	37.52	150,686	37.44
4/20/2026	37.58	37.96	37.35	37.44	71,676	37.36
4/17/2026	36.92	38.13	36.56	37.69	161,847	37.61
4/16/2026	37.35	37.85	36.77	36.98	125,415	36.90
4/15/2026	38.27	38.27	37.43	37.54	102,119	37.46
4/14/2026	38.28	38.89	37.90	38.44	122,342	38.36
4/13/2026	37.46	38.46	37.13	38.42	118,010	38.34
4/10/2026	37.07	37.50	37.07	37.44	87,578	37.36
4/09/2026	37.21	37.61	36.70	37.04	147,547	36.96
4/08/2026	37.20	37.50	36.93	37.36	186,732	37.28
4/07/2026	35.75	36.73	35.62	36.67	217,680	36.59
4/06/2026	37.18	37.19	35.68	35.79	212,520	35.71
4/02/2026	36.94	37.84	36.31	37.29	237,321	37.21
4/01/2026	38.59	38.93	37.54	37.65	200,581	37.57
3/31/2026	38.61	39.09	37.97	38.68	171,492	38.60
3/30/2026	38.47	38.54	38.00	38.24	205,027	38.16
3/27/2026	38.32	38.67	37.54	37.92	136,563	37.84
3/26/2026	37.65	38.84	37.65	38.77	272,527	38.69
3/25/2026	37.47	37.88	36.83	37.87	175,188	37.79
3/24/2026	35.88	37.30	35.88	37.21	155,843	37.13
3/23/2026	35.97	36.73	35.73	36.10	235,367	36.02
3/20/2026	37.87	38.14	35.01	35.10	1,281,224	35.02
3/19/2026	37.43	37.75	36.81	37.45	291,922	37.37
3/18/2026	37.57	38.05	37.31	37.35	310,265	37.27
3/17/2026	38.68	39.50	37.65	37.72	225,182	37.64
3/16/2026	37.92	39.07	37.92	38.39	258,793	38.31
3/13/2026	37.50	37.81	37.22	37.77	272,566	37.69
3/12/2026	37.17	38.39	37.17	37.36	251,919	37.28
3/11/2026	37.05	38.17	36.89	37.28	291,887	37.20
3/10/2026	38.01	38.10	37.07	37.19	327,545	37.11
3/09/2026	37.14	38.77	36.41	38.53	418,817	38.45
3/06/2026	37.60	38.08	36.93	37.55	290,809	37.47
3/05/2026	37.97	39.27	37.20	38.02	247,403	37.85
3/04/2026	36.89	38.74	35.95	38.55	342,221	38.37
3/03/2026	35.12	36.76	34.59	36.73	257,267	36.56