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 13, 2025 is 11.09.
  • 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 32% above the current share price.
  • The TransAlta 52-week low stock price is 6.78, which is 38.9% below the current share price.
  • The average TransAlta stock price for the last 52 weeks is 9.92.
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 10.1571 13.9540 14.3108 8.1203 11.0900 -20.92%
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 $3.287B $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 $153.944B 21.30
Iberdrola S.A (IBDRY) Spain $120.680B 24.18
Southern (SO) United States $99.300B 21.26
Duke Energy (DUK) United States $90.830B 18.79
National Grid Transco (NGG) United Kingdom $71.143B 0.00
Vistra (VST) United States $58.959B 22.42
ENGIE - (ENGIY) France $56.036B 0.00
American Electric Power (AEP) United States $54.969B 17.50
Dominion Energy (D) United States $47.338B 18.26
E.ON SE (EONGY) Germany $46.696B 14.08
Exelon (EXC) United States $43.662B 15.78
Public Service Enterprise Group (PEG) United States $40.419B 21.32
Xcel Energy (XEL) United States $39.001B 19.66
Consolidated Edison Inc (ED) United States $37.456B 18.90
Pacific Gas & Electric (PCG) United States $36.493B 10.33
Entergy (ETR) United States $35.354B 20.86
WEC Energy (WEC) United States $33.544B 20.25
NRG Energy (NRG) United States $29.725B 20.35
DTE Energy (DTE) United States $28.061B 18.63
Ameren (AEE) United States $25.866B 20.45
PPL (PPL) United States $25.054B 19.48
Fortis (FTS) Canada $24.162B 20.07
Eversource Energy (ES) United States $23.957B 14.21
CenterPoint Energy (CNP) United States $23.740B 22.73
FirstEnergy (FE) United States $23.282B 14.67
CMS Energy (CMS) United States $21.097B 20.81
CLP Holdings (CLPHY) Hong Kong, SAR China $21.071B 0.00
Tenaga Nasional Berhad (TNABY) $19.677B 0.00
NiSource (NI) United States $18.602B 21.02
Edison (EIX) United States $18.592B 9.38
Eletrobras (EBR.B) Brazil $18.282B 10.71
Centrais El�tricas Brasileiras SA (EBR) Brazil $16.755B 9.82
Alliant Energy (LNT) United States $15.690B 18.79
Evergy (EVRG) United States $15.643B 17.84
Power Assets Holdings (HGKGY) Hong Kong, SAR China $13.515B 0.00
China Resources Power Holdings (CRPJY) Hong Kong, SAR China $13.184B 0.00
Korea Electric Power (KEP) South Korea $13.122B 5.11
Pinnacle West Capital (PNW) United States $10.742B 17.89
OGE Energy (OGE) United States $8.921B 18.31
Companhia Paranaense De Energia - Copel (ELPC) $8.856B 11.82
AES (AES) United States $8.144B 6.02
Brookfield Renewable Partners (BEP) Bermuda $7.432B 0.00
IDACORP (IDA) United States $6.156B 20.24
Comp En De Mn Cemig ADS (CIG) Brazil $5.437B 6.45
Companhia Paranaense De Energia (COPEL) (ELP) Brazil $5.317B 52.53
Algonquin Power & Utilities (AQN) Canada $4.499B 15.84
Portland General Electric (POR) United States $4.486B 14.42
Black Hills (BKH) United States $4.121B 14.50
Pampa Energia S.A (PAM) Argentina $4.062B 8.09
Allete (ALE) United States $3.755B 18.24
Otter Tail (OTTR) United States $3.251B 11.05
MGE Energy (MGEE) United States $3.213B 24.84
NorthWestern (NWE) United States $3.168B 14.62
Avista (AVA) United States $3.006B 15.94
Innergex Renewable Energy (INGXF) Canada $2.038B 59.03
Centuri Holdings (CTRI) United States $1.947B 66.61
Hawaiian Electric Industries (HE) United States $1.809B 7.89
Kenon Holdings (KEN) Singapore $1.808B 31.80
Empresa Distribuidora Y Comercializadora Norte S.A (Edenor) (EDN) Argentina $1.319B 5.17
Unitil (UTL) United States $0.849B 17.41
Genie Energy (GNE) United States $0.669B 16.83
Ballard Power Systems (BLDP) Canada $0.492B 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 26.00