NASDAQ:CLIR | Historical Stock Price | ClearSign Technologies Corp

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2012-04-25 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$3.20$6.64$13.75$28.50$59.07$122.432012-04-252026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

View year

Historical Stock Price — 2026

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$3.901
2026-09-03$4.21208
2026-09-02$4.2370
2026-09-01$4.43119
2026-08-31$4.22143
2026-08-28$4.7022
2026-08-27$4.53$4.537,100$4.61330
2026-08-26$4.66$4.668,600$4.7711
2026-08-25$4.70$4.7029,300$4.883,583
2026-08-24$4.84$4.8430,200$4.73153
2026-08-21$4.48$4.4823,100$4.31301
2026-08-20$4.69$4.6931,800$4.662
2026-08-19$4.40$4.4022,600$4.5773
2026-08-18$4.67$4.6713,800$4.7463
2026-08-17$4.56$4.5620,900$4.6523
2026-08-14$4.65$4.6527,200
2026-08-13$4.25$4.253,500
2026-08-12$4.13$4.132,700$4.1021
2026-08-11$4.17$4.1725,800
2026-08-10$3.91$3.9115,500$3.84531
2026-08-07$3.75$3.753,500$3.7611
2026-08-06$3.84$3.8410,000$3.9063
2026-08-05$3.89$3.894,500$4.0016
2026-08-04$4.00$4.003,000$4.1117
2026-08-03$3.96$3.9618,300$4.03255
2026-07-31$3.86$3.861,200$3.9322
2026-07-30$3.90$3.902,700$3.9449
2026-07-29$4.02$4.022,800$3.8915
2026-07-28$4.04$4.047,600$3.9321
2026-07-27$3.98$3.9818,400
2026-07-24$3.49$3.4932,500
2026-07-23$3.35$3.3562,300$3.51100
2026-07-22$3.25$3.257,400
2026-07-21$3.35$3.353,400$3.4313
2026-07-20$3.37$3.3713,600$3.4219
2026-07-17$3.62$3.623,800
2026-07-16$3.64$3.642,800
2026-07-15$3.72$3.723,600
2026-07-14$3.71$3.7110,600
2026-07-13$3.62$3.6216,700
2026-07-10$3.72$3.726,200
2026-07-09$3.75$3.756,000
2026-07-08$3.70$3.706,000
2026-07-07$3.84$3.8413,000
2026-07-06$4.10$4.1010,100
2026-07-02$4.06$4.069,500
2026-07-01$4.12$4.1234,100
2026-06-30$3.67$3.6717,500
2026-06-29$3.64$3.646,300
2026-06-26$3.62$3.6214,700
2026-06-25$3.39$3.3914,400
2026-06-24$3.52$3.525,200
2026-06-23$3.71$3.714,900
2026-06-22$3.72$3.7219,000
2026-06-18$3.79$3.7934,000
2026-06-17$4.05$4.0514,000
2026-06-16$4.12$4.1225,800
2026-06-15$4.14$4.1412,500
2026-06-12$4.08$4.0811,000
2026-06-11$4.17$4.1716,100
2026-06-10$4.19$4.1918,200
2026-06-09$4.16$4.1622,800
2026-06-08$4.15$4.1519,700
2026-06-05$3.94$3.949,500
2026-06-04$4.28$4.2817,500
2026-06-03$4.38$4.3811,000
2026-06-02$4.46$4.469,700
2026-06-01$4.47$4.477,900
2026-05-29$4.63$4.6358,000
2026-05-28$4.56$4.5643,400
2026-05-27$4.45$4.4514,500
2026-05-26$4.63$4.6351,500
2026-05-22$4.85$4.8517,900
2026-05-21$5.01$5.018,100
2026-05-20$4.90$4.9016,900
2026-05-19$4.60$4.606,200
2026-05-18$4.41$4.4125,400
2026-05-15$4.71$4.7121,700
2026-05-14$5.21$5.2129,300
2026-05-13$4.45$4.4516,100
2026-05-12$4.55$4.5517,300
2026-05-11$4.36$4.3622,500
2026-05-08$4.54$4.5426,200
2026-05-07$4.83$4.8316,300
2026-05-06$4.91$4.9115,700
2026-05-05$4.91$4.915,000
2026-05-04$5.06$5.0616,100
2026-05-01$5.12$5.1214,600
2026-04-30$5.00$5.009,100
2026-04-29$5.37$5.372,900
2026-04-28$5.33$5.339,400
2026-04-27$5.23$5.2314,700
2026-04-24$5.00$5.005,700
2026-04-23$5.16$5.1615,200
2026-04-22$5.59$5.5913,000
2026-04-21$5.40$5.4011,900
2026-04-20$5.41$5.4156,000
2026-04-17$5.45$5.4521,200
2026-04-16$5.33$5.3317,500
2026-04-15$5.84$5.8417,700
2026-04-14$5.38$5.3818,700
2026-04-13$5.39$5.3947,800
2026-04-10$5.29$5.29133,100
2026-04-09$6.18$6.1858,100
2026-04-08$6.47$6.4740,200
2026-04-07$6.15$6.1576,900
2026-04-06$6.94$6.94691,000
2026-04-02$4.83$4.838,400
2026-04-01$4.71$4.7113,600
2026-03-31$4.36$4.3610,700
2026-03-30$3.85$3.8543,900
2026-03-27$3.74$3.749,800
2026-03-26$3.72$3.7219,400
2026-03-25$3.57$3.577,100
2026-03-24$3.53$3.538,000
2026-03-23$3.60$3.6014,700
2026-03-20$3.46$3.4633,100
2026-03-19$3.61$3.6116,500
2026-03-18$3.73$3.7328,700
2026-03-17$4.04$4.0425,800
2026-03-16$4.36$4.3624,900
2026-03-13$4.30$4.3032,170
2026-03-12$4.40$4.4032,570
2026-03-11$4.50$4.5061,920
2026-03-10$5.70$5.7063,670
2026-03-09$5.40$5.406,300
2026-03-06$5.40$5.4019,330
2026-03-05$5.20$5.209,280
2026-03-04$5.40$5.4018,930
2026-03-03$5.50$5.502,530
2026-03-02$5.60$5.605,860
2026-02-27$5.60$5.604,400
2026-02-26$5.60$5.606,700
2026-02-25$5.80$5.806,790
2026-02-24$5.90$5.907,690
2026-02-23$5.90$5.904,690
2026-02-20$5.90$5.903,720
2026-02-19$6.20$6.207,340
2026-02-18$6.10$6.104,250
2026-02-17$6.30$6.302,220
2026-02-13$6.10$6.1012,360
2026-02-12$6.10$6.108,170
2026-02-11$5.80$5.808,440
2026-02-10$6.10$6.106,610
2026-02-09$6.60$6.6024,760
2026-02-06$5.80$5.805,430
2026-02-05$5.70$5.708,670
2026-02-04$5.90$5.908,270
2026-02-03$6.10$6.106,860
2026-02-02$6.00$6.0016,100
2026-01-30$6.00$6.00130,620
2026-01-29$6.00$6.0011,850
2026-01-28$6.20$6.2013,560
2026-01-27$6.70$6.7014,630
2026-01-26$7.00$7.005,390
2026-01-23$7.00$7.003,180
2026-01-22$7.20$7.2023,790
2026-01-21$6.80$6.8022,650
2026-01-20$7.50$7.507,360
2026-01-16$7.60$7.609,370
2026-01-15$7.90$7.9024,910
2026-01-14$7.50$7.503,520
2026-01-13$7.70$7.7010,720
2026-01-12$7.40$7.4022,540
2026-01-09$7.80$7.8026,430
2026-01-08$7.30$7.3012,510
2026-01-07$7.70$7.7043,760
2026-01-06$6.00$6.0025,850
2026-01-05$6.40$6.4018,140
2026-01-02$5.70$5.7011,170