ClearSign Technologies Corporation - CLIR - Stock Historical Data & Price

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
October 17, 2025	0.81	0.85	0.85	0.9	0.81	198,082
October 16, 2025	1.02	0.87	0.87	1.02	0.85	206,300
October 15, 2025	0.91	0.97	0.97	1	0.91	240,562
October 14, 2025	0.86	1	1	1.01	0.83	192,910
October 13, 2025	0.88	0.92	0.92	0.93	0.81	208,726
October 10, 2025	0.92	0.86	0.86	0.92	0.81	254,424
October 09, 2025	1	0.92	0.92	1	0.91	202,633
October 08, 2025	0.93	0.98	0.98	0.99	0.88	171,011
October 07, 2025	1.09	0.96	0.96	1.11	0.86	1.19M
October 06, 2025	0.9	1.06	1.06	1.12	0.88	1.35M
October 03, 2025	0.84	0.86	0.86	0.88	0.82	189,188
October 02, 2025	0.8	0.84	0.84	0.86	0.79	256,500
October 01, 2025	0.77	0.79	0.79	0.81	0.77	67,135
September 30, 2025	0.83	0.77	0.77	0.83	0.75	112,806
September 29, 2025	0.86	0.8	0.8	0.87	0.78	297,700
September 26, 2025	0.8	0.81	0.81	0.86	0.78	468,699
September 25, 2025	0.77	0.73	0.73	0.78	0.71	154,411
September 24, 2025	0.72	0.76	0.76	0.77	0.72	197,348
September 23, 2025	0.8	0.72	0.72	0.89	0.64	951,540
September 22, 2025	0.66	0.84	0.84	0.9	0.61	2.68M
September 19, 2025	0.51	0.68	0.68	0.95	0.51	36.2M
September 18, 2025	0.51	0.5	0.5	0.54	0.48	392,847
September 17, 2025	0.5	0.51	0.51	0.53	0.48	180,329
September 16, 2025	0.52	0.5	0.5	0.53	0.46	551,000
September 15, 2025	0.56	0.53	0.53	0.57	0.53	161,133
September 12, 2025	0.55	0.54	0.54	0.56	0.54	103,924
September 11, 2025	0.56	0.55	0.55	0.58	0.54	88,023
September 10, 2025	0.59	0.57	0.57	0.6	0.57	68,367
September 09, 2025	0.57	0.58	0.58	0.6	0.57	43,185
September 08, 2025	0.6	0.59	0.59	0.6	0.59	53,664
September 05, 2025	0.6	0.59	0.59	0.6	0.58	40,619
September 04, 2025	0.6	0.58	0.58	0.6	0.58	49,418
September 03, 2025	0.59	0.6	0.6	0.6	0.58	36,200
September 02, 2025	0.61	0.6	0.6	0.61	0.58	46,127
August 29, 2025	0.59	0.58	0.58	0.6	0.58	16,744
August 28, 2025	0.59	0.59	0.59	0.6	0.58	40,229
August 27, 2025	0.58	0.59	0.59	0.6	0.58	35,900
August 26, 2025	0.58	0.58	0.58	0.61	0.57	88,668
August 25, 2025	0.61	0.59	0.59	0.61	0.57	81,600
August 22, 2025	0.6	0.59	0.59	0.62	0.58	91,153
August 21, 2025	0.58	0.57	0.57	0.58	0.55	101,807
August 20, 2025	0.55	0.54	0.54	0.55	0.54	30,000
August 19, 2025	0.55	0.55	0.55	0.55	0.52	43,735
August 18, 2025	0.57	0.56	0.56	0.59	0.56	35,185
August 15, 2025	0.6	0.56	0.56	0.6	0.56	79,414
August 14, 2025	0.62	0.61	0.61	0.62	0.58	76,777
August 13, 2025	0.55	0.59	0.59	0.59	0.55	62,302
August 12, 2025	0.57	0.53	0.53	0.57	0.5	118,146
August 11, 2025	0.55	0.54	0.54	0.57	0.53	80,100
August 08, 2025	0.57	0.56	0.56	0.57	0.55	98,657
August 07, 2025	0.56	0.56	0.56	0.59	0.54	58,916
August 06, 2025	0.56	0.58	0.58	0.58	0.56	30,680
August 05, 2025	0.57	0.55	0.55	0.57	0.54	60,071
August 04, 2025	0.56	0.55	0.55	0.57	0.54	29,236
August 01, 2025	0.57	0.55	0.55	0.58	0.54	45,100
July 31, 2025	0.6	0.58	0.58	0.6	0.57	13,622
July 30, 2025	0.6	0.57	0.57	0.63	0.57	65,041
July 29, 2025	0.64	0.6	0.6	0.65	0.6	54,721
July 28, 2025	0.61	0.63	0.63	0.65	0.61	204,400
July 25, 2025	0.57	0.6	0.6	0.62	0.57	95,200

ClearSign Technologies Corporation (CLIR) NASDAQ