TransAlta Corporation (TAC)
NYSE: TAC · Real-Time Price · USD
12.23
+0.04 (0.37%)
At close: Sep 11, 2026, 4:00 PM EDT
12.08
-0.14 (-1.19%)
After-hours: Sep 11, 2026, 7:30 PM EDT

TransAlta Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Sep 11, 202612.2712.2812.0412.0812.08-0.82%862,698
Sep 10, 202612.2412.3112.0612.1812.18-1.38%1,103,684
Sep 9, 202612.3412.5012.2512.3512.35-0.48%744,747
Sep 8, 202612.0512.5211.9812.4112.413.76%1,023,092
Sep 4, 202611.7912.0811.7511.9611.961.27%2,751,841
Sep 3, 202611.9111.9711.7211.8111.81-0.25%1,373,315
Sep 2, 202611.7411.9011.6611.8411.840.59%1,195,110
Sep 1, 202612.0912.1211.6911.7711.77-2.24%6,123,063
Aug 31, 202612.2112.2812.0112.0912.04-0.82%967,119
Aug 28, 202612.5412.5612.1012.1912.14-2.48%871,436
Aug 27, 202612.6512.7212.3712.5012.45-1.11%975,079
Aug 26, 202612.1812.7512.1812.6412.593.18%1,284,727
Aug 25, 202612.1612.2912.1012.2512.201.24%4,869,257
Aug 24, 202612.1612.1611.8712.1012.05-0.90%1,055,744
Aug 21, 202612.6712.7512.1912.2112.16-3.02%1,592,227
Aug 20, 202612.2912.8412.2912.5912.541.70%1,173,444
Aug 19, 202612.5712.6112.2912.3812.33-0.72%924,832
Aug 18, 202612.6212.6812.4412.4712.42-1.89%965,666
Aug 17, 202612.8212.8412.6612.7112.66-0.63%1,277,566
Aug 14, 202612.6012.8812.6012.7912.741.43%889,692
Aug 13, 202612.3912.6312.3812.6112.561.69%2,421,552
Aug 12, 202612.5012.6712.3012.4012.35-0.64%3,841,056
Aug 11, 202612.3012.5412.3012.4812.431.79%1,870,781
Aug 10, 202612.3912.4712.2212.2612.21-1.37%963,521
Aug 7, 202612.5212.7112.4112.4312.38-0.40%1,561,058
Aug 6, 202612.6712.7312.4112.4812.43-1.50%1,772,807
Aug 5, 202612.7912.9212.6612.6712.62-0.71%1,486,024
Aug 4, 202612.4812.8512.3112.7612.713.40%3,610,673
Aug 3, 202612.2012.5212.1012.3412.29-1.28%578,925
Jul 31, 202612.8813.0012.4812.5012.45-2.80%3,415,750
Jul 30, 202612.7812.9212.5612.8612.813.46%1,373,533
Jul 29, 202612.8212.8412.3312.4312.38-2.43%2,757,763
Jul 28, 202613.3613.3612.6712.7412.69-5.28%2,745,837
Jul 27, 202613.7313.7313.3013.4513.39-1.97%1,169,413
Jul 24, 202614.0514.0713.6913.7213.66-2.76%853,813
Jul 23, 202614.0414.1813.9114.1114.050.50%943,952
Jul 22, 202614.0014.1213.6514.0413.980.36%823,112
Jul 21, 202613.9114.0213.6913.9913.931.97%1,392,566
Jul 20, 202613.3713.7513.2713.7213.663.47%1,200,825
Jul 17, 202613.1413.4513.0513.2613.200.15%1,274,007
Jul 16, 202613.5413.6413.1513.2413.18-2.79%745,645
Jul 15, 202613.8914.0413.4813.6213.56-2.23%1,277,706
Jul 14, 202613.9314.1913.8713.9313.87-1,657,652
Jul 13, 202614.2314.2613.8713.9313.87-2.04%920,171
Jul 10, 202614.4914.5114.2214.2214.16-2.07%1,148,109
Jul 9, 202614.5814.8514.3014.5214.460.28%1,447,830
Jul 8, 202614.0014.5513.9714.4814.422.99%2,191,150
Jul 7, 202613.5414.0913.5314.0614.003.31%1,409,483
Jul 6, 202613.7213.9713.5513.6113.551.04%1,642,699
Jul 2, 202613.7313.8413.3113.4713.41-0.96%2,793,643