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 — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$5.60$5.6013,410
2025-12-30$5.60$5.608,160
2025-12-29$5.80$5.8015,810
2025-12-26$6.10$6.107,030
2025-12-24$6.30$6.302,140
2025-12-23$6.00$6.003,320
2025-12-22$5.80$5.806,190
2025-12-19$5.70$5.7017,640
2025-12-18$5.90$5.9010,950
2025-12-17$5.50$5.5021,670
2025-12-16$5.90$5.905,920
2025-12-15$5.80$5.8032,240
2025-12-12$6.60$6.6031,410
2025-12-11$6.10$6.1030,290
2025-12-10$6.80$6.8018,130
2025-12-09$7.50$7.503,040
2025-12-08$7.50$7.503,250
2025-12-05$7.70$7.702,570
2025-12-04$7.60$7.601,980
2025-12-03$7.70$7.708,730
2025-12-02$7.20$7.203,370
2025-12-01$7.20$7.208,160
2025-11-28$7.40$7.404,490
2025-11-26$7.40$7.406,120
2025-11-25$7.50$7.5020,020
2025-11-24$7.80$7.8010,100
2025-11-21$8.10$8.108,820
2025-11-20$8.20$8.203,400
2025-11-19$8.60$8.607,260
2025-11-18$8.30$8.303,260
2025-11-17$8.30$8.3011,250
2025-11-14$8.80$8.8026,570
2025-11-13$8.70$8.7044,610
2025-11-12$8.30$8.307,540
2025-11-11$8.60$8.6013,590
2025-11-10$9.30$9.304,310
2025-11-07$9.30$9.3011,200
2025-11-06$9.00$9.003,580
2025-11-05$9.20$9.2016,460
2025-11-04$8.60$8.6014,230
2025-11-03$8.50$8.503,960
2025-10-31$8.70$8.707,000
2025-10-30$8.80$8.804,710
2025-10-29$9.00$9.0011,080
2025-10-28$9.10$9.1039,930
2025-10-27$8.40$8.4018,440
2025-10-24$8.90$8.9021,120
2025-10-23$9.50$9.5023,170
2025-10-22$8.30$8.3023,290
2025-10-21$8.60$8.6019,530
2025-10-20$9.50$9.5013,150
2025-10-17$8.50$8.5019,810
2025-10-16$8.70$8.7020,630
2025-10-15$9.70$9.7024,050
2025-10-14$10.00$10.0019,280
2025-10-13$9.20$9.2020,870
2025-10-10$8.60$8.6025,440
2025-10-09$9.20$9.2020,260
2025-10-08$9.80$9.8017,100
2025-10-07$9.60$9.60118,950
2025-10-06$10.60$10.60135,440
2025-10-03$8.60$8.6018,920
2025-10-02$8.40$8.4025,650
2025-10-01$7.90$7.906,700
2025-09-30$7.70$7.7011,280
2025-09-29$8.00$8.0029,770
2025-09-26$8.10$8.1046,870
2025-09-25$7.30$7.3015,440
2025-09-24$7.60$7.6019,730
2025-09-23$7.20$7.2095,130
2025-09-22$8.40$8.40268,130
2025-09-19$6.80$6.803,619,730
2025-09-18$5.00$5.0039,280
2025-09-17$5.10$5.1018,030
2025-09-16$5.00$5.0055,100
2025-09-15$5.30$5.3016,110
2025-09-12$5.40$5.4010,390
2025-09-11$5.50$5.508,760
2025-09-10$5.70$5.706,830
2025-09-09$5.80$5.804,330
2025-09-08$5.90$5.905,360
2025-09-05$5.90$5.904,070
2025-09-04$5.80$5.804,930
2025-09-03$6.00$6.003,620
2025-09-02$6.00$6.004,600
2025-08-29$5.80$5.801,660
2025-08-28$5.90$5.904,020
2025-08-27$5.90$5.903,590
2025-08-26$5.80$5.808,860
2025-08-25$5.90$5.908,160
2025-08-22$5.90$5.909,100
2025-08-21$5.70$5.7010,180
2025-08-20$5.40$5.403,000
2025-08-19$5.50$5.504,370
2025-08-18$5.60$5.603,510
2025-08-15$5.60$5.607,940
2025-08-14$6.10$6.107,670
2025-08-13$5.90$5.906,210
2025-08-12$5.30$5.3011,810
2025-08-11$5.40$5.408,010
2025-08-08$5.60$5.609,860
2025-08-07$5.60$5.605,890
2025-08-06$5.80$5.803,060
2025-08-05$5.50$5.505,990
2025-08-04$5.50$5.502,920
2025-08-01$5.50$5.504,510
2025-07-31$5.80$5.801,350
2025-07-30$5.70$5.706,500
2025-07-29$6.00$6.005,450
2025-07-28$6.30$6.3020,440
2025-07-25$6.00$6.009,520
2025-07-24$5.90$5.907,330
2025-07-23$5.80$5.809,620
2025-07-22$6.00$6.0013,230
2025-07-21$5.90$5.908,450
2025-07-18$5.80$5.8014,840
2025-07-17$5.40$5.4013,330
2025-07-16$5.00$5.006,810
2025-07-15$5.30$5.302,670
2025-07-14$5.30$5.303,610
2025-07-11$5.40$5.404,920
2025-07-10$5.50$5.505,160
2025-07-09$5.50$5.5015,460
2025-07-08$5.40$5.403,910
2025-07-07$5.40$5.4013,180
2025-07-03$5.40$5.405,660
2025-07-02$5.30$5.302,220
2025-07-01$5.40$5.4011,370
2025-06-30$5.60$5.602,350
2025-06-27$5.60$5.603,720
2025-06-26$5.70$5.703,140
2025-06-25$5.60$5.602,610
2025-06-24$6.00$6.002,140
2025-06-23$5.80$5.8016,520
2025-06-20$6.20$6.203,830
2025-06-18$6.10$6.104,320
2025-06-17$6.20$6.203,400
2025-06-16$6.10$6.101,440
2025-06-13$6.00$6.001,970
2025-06-12$6.00$6.003,090
2025-06-11$6.10$6.106,470
2025-06-10$6.20$6.203,030
2025-06-09$6.20$6.207,670
2025-06-06$6.60$6.604,580
2025-06-05$6.50$6.504,450
2025-06-04$6.10$6.105,600
2025-06-03$6.30$6.303,090
2025-06-02$6.90$6.907,180
2025-05-30$6.80$6.801,510
2025-05-29$6.50$6.5011,460
2025-05-28$6.10$6.105,060
2025-05-27$5.70$5.702,320
2025-05-23$6.20$6.208,510
2025-05-22$6.20$6.2014,880
2025-05-21$7.10$7.106,870
2025-05-20$7.10$7.104,380
2025-05-19$7.30$7.3010,570
2025-05-16$7.40$7.4013,000
2025-05-15$6.50$6.505,250
2025-05-14$6.20$6.2015,790
2025-05-13$5.70$5.703,420
2025-05-12$5.70$5.705,260
2025-05-09$5.40$5.403,140
2025-05-08$5.30$5.301,960
2025-05-07$5.40$5.405,530
2025-05-06$5.70$5.702,580
2025-05-05$5.90$5.904,120
2025-05-02$5.90$5.901,610
2025-05-01$5.70$5.706,860
2025-04-30$5.90$5.903,510
2025-04-29$5.40$5.404,090
2025-04-28$5.50$5.503,070
2025-04-25$5.70$5.7010,650
2025-04-24$5.90$5.9017,810
2025-04-23$5.80$5.804,140
2025-04-22$5.80$5.801,540
2025-04-21$5.90$5.902,040
2025-04-17$5.80$5.801,080
2025-04-16$5.60$5.609,500
2025-04-15$5.90$5.903,200
2025-04-14$5.60$5.601,430
2025-04-11$5.70$5.702,590
2025-04-10$5.50$5.504,970
2025-04-09$6.00$6.006,500
2025-04-08$5.00$5.0012,580
2025-04-07$5.20$5.2030,930
2025-04-04$5.00$5.0046,340
2025-04-03$6.10$6.1032,900
2025-04-02$7.30$7.307,560
2025-04-01$7.60$7.602,640
2025-03-31$7.50$7.504,630
2025-03-28$7.70$7.704,980
2025-03-27$7.90$7.901,580
2025-03-26$7.60$7.603,840
2025-03-25$7.60$7.603,170
2025-03-24$7.70$7.706,180
2025-03-21$7.70$7.702,850
2025-03-20$7.90$7.903,290
2025-03-19$7.70$7.704,110
2025-03-18$8.00$8.002,060
2025-03-17$7.80$7.805,060
2025-03-14$8.10$8.102,630
2025-03-13$7.70$7.7010,040
2025-03-12$8.40$8.408,170
2025-03-11$7.90$7.903,470
2025-03-10$7.70$7.708,260
2025-03-07$8.50$8.508,040
2025-03-06$8.20$8.203,560
2025-03-05$8.40$8.404,050
2025-03-04$8.70$8.7013,040
2025-03-03$7.90$7.9024,820
2025-02-28$7.60$7.6028,970
2025-02-27$8.00$8.007,880
2025-02-26$8.30$8.305,600
2025-02-25$7.80$7.803,400
2025-02-24$8.00$8.007,970
2025-02-21$8.00$8.0010,540
2025-02-20$8.60$8.6018,730
2025-02-19$8.60$8.6015,360
2025-02-18$9.10$9.1011,720
2025-02-14$10.00$10.008,060
2025-02-13$9.70$9.709,050
2025-02-12$9.70$9.7014,850
2025-02-11$10.40$10.4013,770
2025-02-10$10.70$10.7014,150
2025-02-07$11.40$11.404,460
2025-02-06$11.20$11.207,430
2025-02-05$11.60$11.604,740
2025-02-04$11.70$11.706,980
2025-02-03$12.00$12.006,600
2025-01-31$12.20$12.2011,570
2025-01-30$12.20$12.207,860
2025-01-29$11.90$11.905,220
2025-01-28$12.10$12.104,910
2025-01-27$12.30$12.307,420
2025-01-24$13.10$13.106,160
2025-01-23$13.00$13.006,560
2025-01-22$13.40$13.408,220
2025-01-21$13.80$13.8011,350
2025-01-17$15.10$15.1031,680
2025-01-16$12.90$12.9023,430
2025-01-15$10.90$10.908,040
2025-01-14$11.30$11.307,740
2025-01-13$11.10$11.106,550
2025-01-10$11.60$11.6012,640
2025-01-08$10.90$10.9012,770
2025-01-07$11.00$11.0050,400
2025-01-06$13.20$13.2023,650
2025-01-03$13.70$13.7013,370
2025-01-02$13.90$13.9014,990