Trinseo Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Feb 20, 2026	0.27	0.30	0.27	0.30	0.30	14.50%	1,780
Feb 19, 2026	0.34	0.34	0.26	0.26	0.26	-20.12%	1,750
Feb 18, 2026	0.24	0.34	0.24	0.33	0.33	31.20%	8,830
Feb 17, 2026	0.32	0.32	0.25	0.25	0.25	-22.84%	6,240
Feb 16, 2026	0.32	0.32	0.32	0.32	0.32	-2.99%	-
Feb 13, 2026	0.33	0.33	0.33	0.33	0.33	-8.74%	-
Feb 12, 2026	0.41	0.41	0.37	0.37	0.37	-14.88%	14,840
Feb 11, 2026	0.37	0.43	0.37	0.43	0.43	4.37%	1,000
Feb 10, 2026	0.38	0.41	0.38	0.41	0.41	7.85%	4,000
Feb 9, 2026	0.38	0.38	0.38	0.38	0.38	1.60%	-
Feb 6, 2026	0.38	0.38	0.38	0.38	0.38	9.30%	-
Feb 5, 2026	0.34	0.34	0.34	0.34	0.34	-11.79%	-
Feb 4, 2026	0.37	0.39	0.37	0.39	0.39	5.41%	6,100
Feb 3, 2026	0.37	0.37	0.37	0.37	0.37	2.21%	-
Feb 2, 2026	0.36	0.36	0.36	0.36	0.36	2.26%	-
Jan 30, 2026	0.35	0.35	0.35	0.35	0.35	-13.66%	-
Jan 29, 2026	0.39	0.42	0.39	0.41	0.41	-	27,000
Jan 28, 2026	0.42	0.42	0.41	0.41	0.41	-	550
Jan 27, 2026	0.40	0.41	0.40	0.41	0.41	3.54%	896
Jan 26, 2026	0.40	0.40	0.40	0.40	0.40	2.06%	-
Jan 23, 2026	0.39	0.39	0.39	0.39	0.39	-5.37%	-
Jan 22, 2026	0.41	0.41	0.41	0.41	0.41	-	-
Jan 21, 2026	0.41	0.41	0.41	0.41	0.41	-1.91%	-
Jan 20, 2026	0.42	0.42	0.42	0.42	0.42	-	-
Jan 19, 2026	0.42	0.42	0.42	0.42	0.42	-4.13%	-
Jan 16, 2026	0.48	0.48	0.44	0.44	0.44	-5.63%	2,790
Jan 15, 2026	0.46	0.46	0.46	0.46	0.46	-3.35%	-
Jan 14, 2026	0.52	0.52	0.48	0.48	0.48	-12.29%	1,959
Jan 13, 2026	0.53	0.55	0.53	0.55	0.55	-16.15%	500
Jan 12, 2026	0.67	0.67	0.65	0.65	0.65	-14.47%	1,000
Jan 9, 2026	0.69	0.76	0.69	0.76	0.76	44.76%	3,947
Jan 8, 2026	0.53	0.53	0.53	0.53	0.53	-2.78%	-
Jan 7, 2026	0.54	0.54	0.54	0.54	0.54	4.85%	-
Jan 6, 2026	0.52	0.52	0.52	0.52	0.52	-5.50%	-
Jan 5, 2026	0.55	0.55	0.55	0.55	0.55	23.86%	4,500
Jan 2, 2026	0.44	0.45	0.44	0.44	0.44	-	2,000
Dec 30, 2025	0.44	0.44	0.44	0.44	0.44	1.85%	-
Dec 29, 2025	0.45	0.47	0.43	0.43	0.43	10.77%	9,620
Dec 23, 2025	0.40	0.40	0.39	0.39	0.39	-7.14%	350
Dec 22, 2025	0.40	0.42	0.40	0.42	0.42	3.45%	4,140
Dec 19, 2025	0.42	0.48	0.41	0.41	0.41	-8.97%	13,470
Dec 18, 2025	0.44	0.45	0.44	0.45	0.45	0.90%	100
Dec 17, 2025	0.41	0.45	0.41	0.44	0.44	-3.91%	7,200
Dec 16, 2025	0.46	0.46	0.46	0.46	0.46	-8.00%	-
Dec 15, 2025	0.53	0.53	0.50	0.50	0.50	-7.41%	1,000
Dec 12, 2025	0.53	0.54	0.53	0.54	0.54	2.86%	28,617
Dec 11, 2025	0.55	0.55	0.53	0.53	0.53	-9.48%	1,000
Dec 10, 2025	0.58	0.58	0.58	0.58	0.58	-5.69%	-
Dec 9, 2025	0.53	0.62	0.53	0.62	0.62	5.13%	10,000
Dec 8, 2025	0.60	0.60	0.59	0.59	0.59	-1.68%	17,876