Koppers Holdings Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 27, 2025	31.91	32.84	31.90	32.75	32.75	3.02%	316,436
Jun 26, 2025	31.78	32.03	31.54	31.79	31.79	0.38%	117,023
Jun 25, 2025	32.29	32.46	31.61	31.67	31.67	-1.95%	107,123
Jun 24, 2025	32.01	32.53	31.98	32.30	32.30	1.60%	100,186
Jun 23, 2025	31.24	31.81	30.90	31.79	31.79	1.57%	77,803
Jun 20, 2025	31.30	31.39	30.79	31.30	31.30	0.48%	205,373
Jun 18, 2025	31.52	31.87	31.09	31.15	31.15	-1.49%	74,567
Jun 17, 2025	31.40	32.09	31.31	31.62	31.62	-0.72%	82,816
Jun 16, 2025	32.27	32.40	31.57	31.85	31.85	-0.19%	123,451
Jun 13, 2025	32.13	32.48	31.80	31.91	31.91	-2.51%	71,273
Jun 12, 2025	32.92	33.02	32.43	32.73	32.73	-1.77%	79,826
Jun 11, 2025	33.58	33.58	33.09	33.32	33.32	0.18%	101,562
Jun 10, 2025	33.15	33.51	32.56	33.26	33.26	1.16%	114,085
Jun 9, 2025	32.65	33.31	32.21	32.88	32.88	2.14%	122,374
Jun 6, 2025	32.14	32.33	31.97	32.19	32.19	1.93%	77,151
Jun 5, 2025	31.54	32.00	31.14	31.58	31.58	0.41%	123,278
Jun 4, 2025	31.24	31.79	31.24	31.45	31.45	0.64%	103,464
Jun 3, 2025	30.57	31.43	30.53	31.25	31.25	2.22%	91,082
Jun 2, 2025	30.72	30.87	30.30	30.57	30.57	-0.49%	251,510
May 30, 2025	31.27	31.41	30.50	30.72	30.72	-2.63%	198,719
May 29, 2025	31.91	31.91	31.39	31.55	31.47	-0.19%	140,915
May 28, 2025	31.80	31.99	31.39	31.61	31.53	-0.72%	133,613
May 27, 2025	31.03	31.95	30.71	31.84	31.76	5.22%	126,687
May 23, 2025	29.67	30.42	29.67	30.26	30.18	-0.36%	177,812
May 22, 2025	30.27	30.68	29.86	30.37	30.29	-0.23%	121,411
May 21, 2025	31.01	31.01	30.36	30.44	30.36	-3.21%	138,341
May 20, 2025	31.33	31.64	31.01	31.45	31.37	0.19%	129,575
May 19, 2025	30.69	31.60	30.58	31.39	31.31	0.61%	134,310
May 16, 2025	31.44	31.52	30.80	31.20	31.12	-0.70%	150,119
May 15, 2025	30.27	31.43	29.96	31.42	31.34	3.19%	196,264
May 14, 2025	30.42	30.94	30.07	30.45	30.37	0.16%	281,311
May 13, 2025	29.90	30.55	29.34	30.40	30.32	3.23%	231,187
May 12, 2025	29.33	29.91	28.35	29.45	29.37	8.83%	292,871
May 9, 2025	28.12	29.01	26.90	27.06	26.99	3.44%	202,104
May 8, 2025	25.39	26.19	25.23	26.16	26.09	4.47%	161,069
May 7, 2025	25.42	25.43	24.78	25.04	24.98	-0.56%	123,384
May 6, 2025	25.22	25.63	25.01	25.18	25.12	-1.06%	105,125
May 5, 2025	25.56	26.07	25.41	25.45	25.38	-2.08%	115,667
May 2, 2025	25.38	26.30	25.15	25.99	25.92	3.34%	141,004
May 1, 2025	25.08	25.37	24.63	25.15	25.09	0.36%	126,352
Apr 30, 2025	24.97	25.12	24.24	25.06	25.00	-1.30%	159,882
Apr 29, 2025	25.00	25.48	24.72	25.39	25.32	0.67%	129,344
Apr 28, 2025	25.32	25.74	24.91	25.22	25.15	-0.28%	130,405
Apr 25, 2025	25.17	25.32	24.66	25.29	25.22	-1.13%	168,597
Apr 24, 2025	24.56	25.75	24.43	25.58	25.51	3.40%	156,194
Apr 23, 2025	25.42	25.67	24.45	24.74	24.68	0.37%	247,308
Apr 22, 2025	24.81	25.19	24.20	24.65	24.59	0.69%	352,194
Apr 21, 2025	24.59	24.62	23.94	24.48	24.42	-1.61%	145,870
Apr 17, 2025	24.25	25.17	24.21	24.88	24.82	3.28%	146,160
Apr 16, 2025	24.43	24.54	23.54	24.09	24.03	-1.51%	115,615