TransAlta - 24 Year Stock Price History | TAC

Historical daily share price chart and data for TransAlta since 2001 adjusted for splits and dividends. The latest closing stock price for TransAlta as of April 25, 2025 is 8.99.
  • The all-time high TransAlta stock closing price was 18.85 on July 21, 2008.
  • The TransAlta 52-week high stock price is 14.64, which is 62.8% above the current share price.
  • The TransAlta 52-week low stock price is 6.51, which is 27.6% below the current share price.
  • The average TransAlta stock price for the last 52 weeks is 9.59.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
TransAlta Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2025 10.5079 14.0212 14.3797 8.1600 8.9900 -36.20%
2024 8.3299 8.0614 14.2702 5.9450 14.0909 73.95%
2023 8.6809 8.5180 10.0256 7.1000 8.1004 -5.64%
2022 9.6163 11.0476 11.1399 7.4219 8.5850 -18.03%
2021 9.2236 7.1033 10.8744 7.1033 10.4731 48.80%
2020 5.8439 6.3863 7.7327 3.4713 7.0384 8.06%
2019 5.6976 3.7327 6.7205 3.7327 6.5137 77.05%
2018 4.7482 5.1935 5.2554 3.6612 3.6791 -29.16%
2017 5.0591 4.6983 5.6576 4.3816 5.1935 10.54%
2016 3.8814 2.9144 4.8692 2.1650 4.6983 59.39%
2015 5.4727 6.9415 7.9196 2.4980 2.9477 -57.25%
2014 8.3361 9.0876 9.7988 6.3935 6.8959 -24.30%
2013 9.6937 10.3093 11.2990 8.5413 9.1091 -10.02%
2012 10.8556 13.1218 13.2721 9.2674 10.1233 -20.87%
2011 12.9315 12.5874 14.1034 11.9009 12.7930 2.64%
2010 11.9359 12.5580 12.8751 10.5723 12.4640 0.59%
2009 10.0788 10.8864 12.5524 7.4785 12.3910 17.63%
2008 15.1678 16.9068 18.8522 8.4388 10.5337 -37.21%
2007 13.2764 11.1561 18.2722 9.8206 16.7766 52.30%
2006 9.9797 10.6395 11.1367 8.8214 11.0158 8.66%
2005 7.9347 6.6697 10.5002 6.4426 10.1379 52.00%
2004 5.6331 5.9354 6.6918 4.9835 6.6697 14.11%
2003 5.1021 4.2519 5.9313 4.0387 5.8450 40.87%
2002 4.7106 4.7734 5.4783 4.0564 4.1491 -14.91%
Sector Industry Market Cap Revenue
Utilities Utility - Electric Power Distribution $2.600B $2.076B
TransAlta is Canada's largest non-regulated electric generation and marketing company.
Stock Name Country Market Cap PE Ratio
NextEra Energy (NEE) United States $136.504B 19.33
Iberdrola S.A (IBDRY) Spain $114.304B 19.40
Southern (SO) United States $101.009B 22.67
Duke Energy (DUK) United States $94.641B 20.64
National Grid Transco (NGG) United Kingdom $70.556B 0.00
American Electric Power (AEP) United States $57.484B 19.20
ENGIE - (ENGIY) France $52.164B 0.00
Exelon (EXC) United States $47.711B 18.83
Pacific Gas & Electric (PCG) United States $46.027B 12.67
E.ON SE (EONGY) Germany $45.391B 14.73
Dominion Energy (D) United States $45.312B 19.99
Public Service Enterprise Group (PEG) United States $41.560B 22.65
Xcel Energy (XEL) United States $40.396B 20.15
Consolidated Edison Inc (ED) United States $40.379B 20.76
Vistra (VST) United States $39.261B 15.35
Entergy (ETR) United States $35.870B 22.78
WEC Energy (WEC) United States $34.586B 22.17
DTE Energy (DTE) United States $27.714B 19.55
Ameren (AEE) United States $26.626B 21.49
PPL (PPL) United States $26.399B 21.26
CenterPoint Energy (CNP) United States $24.255B 22.94
FirstEnergy (FE) United States $24.233B 15.98
Fortis (FTS) Canada $24.168B 20.16
Edison (EIX) United States $22.097B 11.69
CMS Energy (CMS) United States $21.785B 21.83
CLP Holdings (CLPHY) Hong Kong, SAR China $21.096B 0.00
Eversource Energy (ES) United States $21.085B 12.54
NRG Energy (NRG) United States $19.931B 17.32
Tenaga Nasional Berhad (TNABY) $19.353B 0.00
NiSource (NI) United States $18.490B 22.45
Eletrobras (EBR.B) Brazil $17.676B 9.84
Centrais El�tricas Brasileiras SA (EBR) Brazil $16.238B 9.04
Evergy (EVRG) United States $15.726B 17.94
Alliant Energy (LNT) United States $15.618B 20.00
Power Assets Holdings (HGKGY) Hong Kong, SAR China $13.319B 0.00
China Resources Power Holdings (CRPJY) Hong Kong, SAR China $11.545B 0.00
Pinnacle West Capital (PNW) United States $11.260B 18.09
Korea Electric Power (KEP) South Korea $11.016B 4.29
OGE Energy (OGE) United States $9.080B 20.50
Companhia Paranaense De Energia - Copel (ELPC) $7.330B 9.79
AES (AES) United States $7.247B 4.78
IDACORP (IDA) United States $6.444B 21.77
Brookfield Renewable Partners (BEP) Bermuda $6.128B 0.00
Comp En De Mn Cemig ADS (CIG) Brazil $5.008B 4.92
Portland General Electric (POR) United States $4.717B 13.72
Black Hills (BKH) United States $4.368B 15.46
Pampa Energia S.A (PAM) Argentina $4.268B 6.92
Companhia Paranaense De Energia (COPEL) (ELP) Brazil $4.165B 44.76
Algonquin Power & Utilities (AQN) Canada $4.154B 14.62
Allete (ALE) United States $3.753B 18.45
NorthWestern (NWE) United States $3.604B 17.28
Avista (AVA) United States $3.359B 18.43
MGE Energy (MGEE) United States $3.309B 27.20
Otter Tail (OTTR) United States $3.306B 11.01
Innergex Renewable Energy (INGXF) Canada $1.974B 69.43
Hawaiian Electric Industries (HE) United States $1.803B 6.74
Empresa Distribuidora Y Comercializadora Norte S.A (Edenor) (EDN) Argentina $1.526B 5.39
Centuri Holdings (CTRI) United States $1.521B 0.00
Kenon Holdings (KEN) Singapore $1.493B 26.26
Red Electrica Corporacion SA (RDEIY) Spain $1.180B 0.00
Unitil (UTL) United States $0.954B 19.91
Genie Energy (GNE) United States $0.406B 10.15
Ballard Power Systems (BLDP) Canada $0.338B 0.00
Polar Power (POLA) United States $0.005B 0.00
Great Plains Energy Inc (GXP) United States $0.000B 0.00
Enel Chile S.A (ENIC) Chile $0.000B 26.83