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 June 11, 2025 is 10.47.
  • The all-time high TransAlta stock closing price was 18.77 on July 21, 2008.
  • The TransAlta 52-week high stock price is 14.64, which is 39.8% above the current share price.
  • The TransAlta 52-week low stock price is 6.78, which is 35.2% below the current share price.
  • The average TransAlta stock price for the last 52 weeks is 9.90.
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 10.1372 13.9540 14.3108 8.1203 10.4700 -25.34%
2024 8.2897 8.0220 14.2018 5.9162 14.0234 73.97%
2023 8.6379 8.4760 9.9763 7.0647 8.0608 -5.64%
2022 9.5691 10.9936 11.0849 7.3853 8.5426 -18.03%
2021 9.1785 7.0686 10.8212 7.0686 10.4219 48.80%
2020 5.8151 6.3546 7.6943 3.4540 7.0040 8.06%
2019 5.6694 3.7142 6.6874 3.7142 6.4813 77.04%
2018 4.7249 5.1677 5.2293 3.6431 3.6609 -29.16%
2017 5.0340 4.6757 5.6289 4.3596 5.1677 10.52%
2016 3.8630 2.9007 4.8457 2.1548 4.6757 59.37%
2015 5.4477 6.9112 7.8838 2.4864 2.9339 -57.27%
2014 8.2988 9.0463 9.7543 6.3656 6.8657 -24.28%
2013 9.6512 10.2671 11.2527 8.5038 9.0678 -10.06%
2012 10.8110 13.0671 13.2182 9.2296 10.0818 -20.86%
2011 12.8761 12.5321 14.0440 11.8497 12.7396 2.66%
2010 11.8822 12.5006 12.8163 10.5256 12.4093 0.61%
2009 10.0335 10.8376 12.4951 7.4445 12.3345 17.62%
2008 15.0984 16.8258 18.7665 8.4009 10.4865 -37.19%
2007 13.2132 11.1036 18.1845 9.7740 16.6962 52.28%
2006 9.9325 10.5874 11.0843 8.7787 10.9639 8.68%
2005 7.8960 6.6378 10.4487 6.4111 10.0883 51.98%
2004 5.6060 5.9068 6.6597 4.9595 6.6378 14.11%
2003 5.0775 4.2314 5.9027 4.0192 5.8168 40.87%
2002 4.6880 4.7509 5.4519 4.0369 4.1291 -14.92%
Sector Industry Market Cap Revenue
Utilities Utility - Electric Power Distribution $3.104B $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 $150.280B 20.80
Iberdrola S.A (IBDRY) Spain $119.344B 23.91
Southern (SO) United States $98.420B 21.07
Duke Energy (DUK) United States $90.434B 18.71
National Grid Transco (NGG) United Kingdom $69.930B 0.00
Vistra (VST) United States $56.597B 21.52
American Electric Power (AEP) United States $54.456B 17.34
ENGIE - (ENGIY) France $54.283B 0.00
Dominion Energy (D) United States $47.390B 18.28
E.ON SE (EONGY) Germany $45.861B 13.83
Exelon (EXC) United States $43.289B 15.65
Public Service Enterprise Group (PEG) United States $40.324B 21.27
Xcel Energy (XEL) United States $39.364B 19.84
Pacific Gas & Electric (PCG) United States $38.499B 10.90
Consolidated Edison Inc (ED) United States $36.948B 18.65
Entergy (ETR) United States $35.388B 20.88
WEC Energy (WEC) United States $33.694B 20.34
NRG Energy (NRG) United States $29.145B 19.96
DTE Energy (DTE) United States $28.009B 18.59
Ameren (AEE) United States $25.906B 20.48
PPL (PPL) United States $24.972B 19.41
Eversource Energy (ES) United States $24.082B 14.28
Fortis (FTS) Canada $23.791B 19.76
CenterPoint Energy (CNP) United States $23.518B 22.52
FirstEnergy (FE) United States $23.207B 14.62
CLP Holdings (CLPHY) Hong Kong, SAR China $21.121B 0.00
CMS Energy (CMS) United States $20.939B 20.65
Edison (EIX) United States $19.088B 9.63
Eletrobras (EBR.B) Brazil $18.754B 10.99
NiSource (NI) United States $18.574B 20.99
Tenaga Nasional Berhad (TNABY) $18.085B 0.00
Centrais El�tricas Brasileiras SA (EBR) Brazil $16.732B 9.80
Alliant Energy (LNT) United States $15.703B 18.81
Evergy (EVRG) United States $15.533B 17.72
Power Assets Holdings (HGKGY) Hong Kong, SAR China $13.788B 0.00
Korea Electric Power (KEP) South Korea $13.314B 5.18
China Resources Power Holdings (CRPJY) Hong Kong, SAR China $13.184B 0.00
Pinnacle West Capital (PNW) United States $10.652B 17.74
OGE Energy (OGE) United States $8.897B 18.26
Companhia Paranaense De Energia - Copel (ELPC) $8.806B 11.76
AES (AES) United States $8.173B 6.04
Brookfield Renewable Partners (BEP) Bermuda $7.355B 0.00
IDACORP (IDA) United States $6.222B 20.46
Companhia Paranaense De Energia (COPEL) (ELP) Brazil $5.305B 52.41
Comp En De Mn Cemig ADS (CIG) Brazil $5.294B 6.28
Algonquin Power & Utilities (AQN) Canada $4.515B 15.89
Portland General Electric (POR) United States $4.499B 14.47
Black Hills (BKH) United States $4.169B 14.67
Pampa Energia S.A (PAM) Argentina $4.135B 8.23
Allete (ALE) United States $3.778B 18.35
Otter Tail (OTTR) United States $3.335B 11.34
MGE Energy (MGEE) United States $3.257B 25.18
NorthWestern (NWE) United States $3.233B 14.92
Avista (AVA) United States $3.057B 16.21
Centuri Holdings (CTRI) United States $2.046B 70.00
Innergex Renewable Energy (INGXF) Canada $2.038B 59.03
Kenon Holdings (KEN) Singapore $1.876B 33.00
Hawaiian Electric Industries (HE) United States $1.859B 8.11
Empresa Distribuidora Y Comercializadora Norte S.A (Edenor) (EDN) Argentina $1.416B 5.55
Unitil (UTL) United States $0.866B 17.74
Genie Energy (GNE) United States $0.643B 16.19
Ballard Power Systems (BLDP) Canada $0.504B 0.00
Polar Power (POLA) United States $0.004B 0.00
Great Plains Energy Inc (GXP) United States $0.000B 0.00
Enel Chile S.A (ENIC) Chile $0.000B 26.43