Koppers Holdings Inc. - KOP - Stock Historical Data & Price

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
October 17, 2025	26.51	26.74	26.74	26.9	26.45	131,171
October 16, 2025	26.49	26.74	26.74	26.74	26.17	116,400
October 15, 2025	26.9	26.43	26.43	27.39	26.26	101,900
October 14, 2025	26.38	26.69	26.69	26.99	26.38	94,700
October 13, 2025	26.74	26.74	26.74	26.94	26.55	146,700
October 10, 2025	26.54	26.35	26.35	26.84	26.16	181,320
October 09, 2025	26.6	26.5	26.5	26.79	26.34	191,000
October 08, 2025	26.64	26.59	26.59	26.65	26.3	114,814
October 07, 2025	26.75	26.47	26.47	27.13	26.37	153,100
October 06, 2025	27.14	26.74	26.74	27.14	26.22	175,209
October 03, 2025	27.14	27	27	27.49	26.91	157,808
October 02, 2025	27.79	26.94	26.94	28.07	26.91	137,842
October 01, 2025	27.74	27.9	27.9	27.98	27.46	135,399
September 30, 2025	27.57	28	28	28.22	27.39	123,800
September 29, 2025	28.6	27.75	27.75	28.63	27.75	138,800
September 26, 2025	28.15	28.41	28.41	28.68	28.15	121,925
September 25, 2025	28.75	28.15	28.15	28.75	28.1	127,700
September 24, 2025	28.81	28.82	28.82	28.95	28.64	114,600
September 23, 2025	28.87	28.75	28.75	29.49	28.73	224,800
September 22, 2025	28.83	28.89	28.89	29.02	28.57	227,100
September 19, 2025	29.32	29	29	29.36	28.56	591,400
September 18, 2025	29.22	29.35	29.35	29.55	28.86	222,003
September 17, 2025	28.73	28.98	28.98	29.9	28.53	290,300
September 16, 2025	28.67	28.63	28.63	29.16	28.43	132,842
September 15, 2025	28.88	28.63	28.63	28.96	28.29	140,000
September 12, 2025	28.65	28.75	28.75	28.98	28.14	177,708
September 11, 2025	27.49	28.9	28.9	28.98	27.49	199,120
September 10, 2025	28.65	27.53	27.53	28.82	27.38	137,900
September 09, 2025	28.39	28.69	28.69	28.94	28.19	198,400
September 08, 2025	28.91	28.67	28.67	28.94	28.35	170,843
September 05, 2025	28.59	28.87	28.87	29.99	28.5	159,600
September 04, 2025	28.22	28.62	28.62	28.69	27.97	172,000
September 03, 2025	28.14	28.08	28.08	28.98	27.24	173,100
September 02, 2025	28.65	28.32	28.32	28.89	28.24	174,828
August 29, 2025	29.04	28.98	28.98	29.16	28.65	135,700
August 28, 2025	29.4	29.01	28.93	29.47	28.94	172,918
August 27, 2025	29.23	29.23	29.15	29.74	28.75	130,000
August 26, 2025	29.65	29.39	29.31	29.79	29.23	138,900
August 25, 2025	30.22	29.7	29.62	30.22	29.23	127,400
August 22, 2025	29.27	30.16	30.16	30.47	28.94	148,847
August 21, 2025	28.85	28.79	28.79	29.3	28.64	266,700
August 20, 2025	29.78	29.33	29.33	29.9	29.25	138,447
August 19, 2025	29.78	29.85	29.85	30.3	29.53	143,100
August 18, 2025	29.54	29.62	29.62	29.9	29.46	160,400
August 15, 2025	30.81	29.61	29.61	30.89	29.52	223,009
August 14, 2025	30.44	30.64	30.64	31.01	30.43	168,414
August 13, 2025	30	31.06	31.06	31.18	30	169,137
August 12, 2025	28.93	29.65	29.65	30.4	28.5	265,600
August 11, 2025	28.74	28.35	28.35	29.04	26.82	308,100
August 08, 2025	28.76	28.84	28.84	29.57	26.79	405,339
August 07, 2025	32.95	33.27	33.27	33.46	32.72	96,893
August 06, 2025	32.49	32.44	32.44	32.6	32.24	79,040
August 05, 2025	31.91	32.62	32.62	32.75	31.91	102,931
August 04, 2025	31.99	31.85	31.85	32.36	31.73	87,500
August 01, 2025	32.49	31.89	31.89	32.49	31.41	116,700
July 31, 2025	32.67	32.86	32.86	33.12	32.51	121,500
July 30, 2025	33.76	33.1	33.1	33.76	32.83	114,000
July 29, 2025	34.18	33.82	33.82	34.18	33.69	99,800
July 28, 2025	34.5	34.05	34.05	34.7	33.84	94,700
July 25, 2025	33.43	34.59	34.59	34.65	33.4	100,800

Koppers Holdings Inc. (KOP) NYSE