TransAlta Corporation (TAC)
NYSE: TAC · Real-Time Price · USD
12.70
-0.75 (-5.58%)
Jul 28, 2026, 2:04 PM EDT - Market open

TransAlta Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Jul 28, 202613.3613.3612.7212.83--4.61%766,746
Jul 27, 202613.7313.7313.3013.4513.45-1.97%984,626
Jul 24, 202614.0514.0713.6913.7213.72-2.76%704,701
Jul 23, 202614.0414.1813.9114.1114.110.50%847,031
Jul 22, 202614.0014.1213.6514.0414.040.36%743,606
Jul 21, 202613.9114.0213.6913.9913.991.97%636,240
Jul 20, 202613.3713.7513.2713.7213.723.47%925,195
Jul 17, 202613.1413.4513.0513.2613.260.15%718,813
Jul 16, 202613.5413.6413.1513.2413.24-2.79%638,760
Jul 15, 202613.8914.0413.4813.6213.62-2.23%936,216
Jul 14, 202613.9314.1913.8713.9313.93-1,074,214
Jul 13, 202614.2314.2613.8713.9313.93-2.04%827,289
Jul 10, 202614.4914.5114.2214.2214.22-2.07%921,861
Jul 9, 202614.5814.8514.3014.5214.520.28%1,171,269
Jul 8, 202614.0014.5513.9714.4814.482.99%1,970,703
Jul 7, 202613.5414.0913.5314.0614.063.31%1,022,678
Jul 6, 202613.7213.9713.5513.6113.611.04%928,198
Jul 2, 202613.7313.8413.3113.4713.47-0.96%1,464,429
Jul 1, 202613.6713.8613.5213.6013.60-1.66%762,551
Jun 30, 202613.4813.9413.4813.8313.831.54%1,056,887
Jun 29, 202613.8513.8813.4713.6213.62-1.30%1,246,759
Jun 26, 202613.6613.8813.6613.8013.80-0.07%801,203
Jun 25, 202613.8913.9813.5913.8113.810.88%863,872
Jun 24, 202613.5913.9313.5113.6913.69-1,500,931
Jun 23, 202613.5613.7313.5213.6913.69-1.16%939,025
Jun 22, 202613.7914.0613.7013.8513.850.80%1,100,812
Jun 18, 202613.7713.8513.5113.7413.741.33%1,659,027
Jun 17, 202613.4713.8813.4613.5613.560.37%1,593,341
Jun 16, 202613.5513.6813.4513.5113.51-0.44%1,025,130
Jun 15, 202613.4013.6613.3213.5713.571.34%1,016,087
Jun 12, 202613.3613.6513.2713.3913.390.15%1,371,381
Jun 11, 202612.4413.4812.4013.3713.378.00%2,013,712
Jun 10, 202612.7812.7812.1712.3812.38-0.64%1,359,989
Jun 9, 202612.5112.8312.3412.4612.46-0.40%1,739,542
Jun 8, 202612.6912.8212.4112.5112.51-1.34%1,166,483
Jun 5, 202612.9513.1312.4712.6812.68-2.16%2,035,094
Jun 4, 202613.6113.6212.7012.9612.96-10.37%4,177,945
Jun 3, 202614.4514.7714.3114.4614.460.84%1,408,749
Jun 2, 202614.2214.6114.1714.3414.341.27%1,360,458
Jun 1, 202614.0214.3613.9214.1614.16-0.07%931,373
May 29, 202614.0114.2513.8314.2214.171.35%992,601
May 28, 202613.8414.1013.7814.0313.981.52%709,878
May 27, 202614.0814.0813.7613.8213.77-2.12%741,235
May 26, 202613.7414.2313.7114.1214.074.05%964,971
May 22, 202613.5613.8213.4213.5713.520.52%4,604,931
May 21, 202612.8913.5012.8813.5013.454.01%950,916
May 20, 202612.9613.0612.8112.9812.930.93%1,110,649
May 19, 202612.5913.0812.4812.8612.813.21%1,217,614
May 18, 202612.7612.8512.3412.4612.42-2.50%545,055
May 15, 202612.7212.9312.6212.7812.73-1.31%949,952