TransAlta Corporation (TAC)
NYSE: TAC · Real-Time Price · USD
15.13
+0.13 (0.87%)
Oct 8, 2025, 7:00 AM EDT - Market open

TransAlta Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Oct 7, 202514.7115.0114.5815.0015.002.25%1,113,430
Oct 6, 202514.5014.8614.4714.6714.671.38%2,025,673
Oct 3, 202513.7714.9013.5214.4714.475.62%3,363,581
Oct 2, 202513.9013.9113.6613.7013.70-0.72%1,256,616
Oct 1, 202513.6913.9113.6413.8013.800.95%3,655,103
Sep 30, 202513.6113.7913.5813.6713.67-835,983
Sep 29, 202513.6613.7613.5613.6713.670.37%466,775
Sep 26, 202513.5313.6413.4513.6213.620.96%526,940
Sep 25, 202513.5013.5513.4013.4913.49-1.10%741,145
Sep 24, 202513.6813.7413.4613.6413.640.15%616,316
Sep 23, 202513.8313.8313.5913.6213.62-1.73%670,498
Sep 22, 202513.5113.9013.4713.8613.861.61%1,811,338
Sep 19, 202513.6813.8113.2613.6413.641.26%1,695,888
Sep 18, 202513.2813.5913.1813.4713.472.51%1,413,898
Sep 17, 202512.8813.2712.8313.1413.141.62%1,221,362
Sep 16, 202513.0013.0012.7712.9312.93-0.54%488,084
Sep 15, 202512.6413.0212.6413.0013.002.85%1,714,795
Sep 12, 202512.5612.6712.5312.6412.64-0.08%699,824
Sep 11, 202512.7112.8212.4512.6512.65-0.24%947,878
Sep 10, 202512.4712.7312.4412.6812.682.67%705,299
Sep 9, 202512.3012.5312.2512.3512.350.32%918,150
Sep 8, 202512.3212.3712.1612.3112.310.24%1,131,116
Sep 5, 202512.2312.2912.0412.2812.281.32%524,747
Sep 4, 202512.0612.1311.9412.1212.120.66%1,629,469
Sep 3, 202512.0612.1212.0112.0412.04-0.50%351,903
Sep 2, 202512.1112.2811.9512.1012.10-1.63%567,783
Aug 29, 202512.5212.5212.2212.3012.30-2.46%2,151,968
Aug 28, 202512.1312.6612.0812.6112.564.47%704,791
Aug 27, 202512.2012.2712.0212.0712.02-1.55%490,733
Aug 26, 202512.2312.2712.0512.2612.210.82%432,687
Aug 25, 202512.0712.2011.9712.1612.110.25%979,148
Aug 22, 202512.2612.3912.0812.1312.08-1.46%2,754,054
Aug 21, 202512.2812.5412.2812.3112.26-647,098
Aug 20, 202512.3212.4312.1412.3112.26-0.49%660,047
Aug 19, 202512.5412.5412.3312.3712.32-1.12%650,866
Aug 18, 202512.3112.6112.3112.5112.461.38%729,753
Aug 15, 202512.5712.6212.3312.3412.29-1.28%750,542
Aug 14, 202512.1812.6312.1212.5012.452.04%1,772,263
Aug 13, 202512.3612.3612.1512.2512.20-0.08%994,138
Aug 12, 202512.0012.3012.0012.2612.212.17%839,083
Aug 11, 202512.0812.1111.9712.0011.95-0.66%4,400,466
Aug 8, 202512.0412.1911.9412.0812.030.50%1,034,233
Aug 7, 202512.1912.1911.8812.0211.97-1.23%845,942
Aug 6, 202512.0012.2511.9412.1712.120.83%1,071,860
Aug 5, 202512.4612.5712.0112.0712.02-3.59%1,702,057
Aug 4, 202512.3712.5712.2512.5212.471.21%683,753
Aug 1, 202512.0012.6611.8612.3712.322.66%1,472,286
Jul 31, 202512.2512.3311.9512.0512.00-1.79%1,627,798
Jul 30, 202512.1512.4912.0812.2712.221.07%1,248,410
Jul 29, 202512.2012.3312.0212.1412.09-0.49%1,226,312