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 February 21, 2025 is 10.90.
  • The all-time high TransAlta stock closing price was 19.01 on July 21, 2008.
  • The TransAlta 52-week high stock price is 14.64, which is 34.3% above the current share price.
  • The TransAlta 52-week low stock price is 5.94, which is 45.5% below the current share price.
  • The average TransAlta stock price for the last 52 weeks is 9.09.
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 12.0826 14.0800 14.4400 10.4000 10.9000 -22.97%
2024 8.3714 8.1325 14.3300 5.9976 14.1500 73.16%
2023 8.7572 8.5925 10.1138 7.1626 8.1718 -5.64%
2022 9.7024 11.1478 11.2394 7.4880 8.6601 -18.05%
2021 9.3066 7.1667 10.9724 7.1667 10.5681 48.82%
2020 5.8959 6.4425 7.8007 3.5022 7.1012 8.07%
2019 5.7481 3.7656 6.7812 3.7656 6.5709 77.04%
2018 4.7907 5.2412 5.3025 3.6936 3.7116 -29.18%
2017 5.1065 4.7433 5.7104 4.4229 5.2412 10.50%
2016 3.9188 2.9428 4.9158 2.1861 4.7433 59.36%
2015 5.5301 7.0136 8.0043 2.5224 2.9765 -57.28%
2014 8.4245 9.1848 9.9036 6.4599 6.9675 -24.32%
2013 9.6038 10.1913 11.1698 8.4471 9.2066 -8.00%
2012 10.7267 12.9628 13.1106 9.1601 10.0075 -20.81%
2011 12.7801 12.4456 13.9353 11.7611 12.6380 2.55%
2010 11.8082 12.4224 12.7361 10.4583 12.3236 0.54%
2009 9.9633 10.7671 12.4169 7.3918 12.2573 17.65%
2008 15.2559 17.0499 19.0112 8.4489 10.4183 -38.42%
2007 13.3907 11.2471 18.4296 9.9071 16.9185 52.34%
2006 10.0600 10.7258 11.2275 8.8929 11.1056 8.66%
2005 8.0105 6.7474 10.5853 6.5184 10.2201 51.47%
2004 5.6836 5.9633 6.7697 5.0480 6.7474 14.90%
2003 5.1757 4.3672 5.9591 4.1483 5.8724 37.79%
2002 4.8481 4.9381 5.6676 4.1417 4.2617 -15.52%
Sector Industry Market Cap Revenue
Utilities Utility - Electric Power Distribution $3.357B $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 $144.280B 20.45
Southern (SO) United States $96.223B 21.68
Iberdrola S.A (IBDRY) Spain $90.796B 12.90
Duke Energy (DUK) United States $87.414B 19.18
National Grid Transco (NGG) United Kingdom $59.782B 0.00
American Electric Power (AEP) United States $55.641B 18.60
Vistra (VST) United States $55.518B 27.66
Dominion Energy (D) United States $47.309B 21.17
Exelon (EXC) United States $43.395B 17.20
Public Service Enterprise Group (PEG) United States $42.185B 25.05
Pacific Gas & Electric (PCG) United States $41.913B 11.54
ENGIE - (ENGIY) France $40.694B 0.00
Xcel Energy (XEL) United States $39.806B 19.92
Entergy (ETR) United States $36.955B 23.49
Consolidated Edison Inc (ED) United States $33.172B 17.73
WEC Energy (WEC) United States $32.752B 21.17
E.ON SE (EONGY) Germany $32.230B 0.00
DTE Energy (DTE) United States $27.186B 19.21
Ameren (AEE) United States $26.238B 21.18
PPL (PPL) United States $25.213B 20.33
FirstEnergy (FE) United States $23.848B 16.04
Eversource Energy (ES) United States $23.247B 13.84
NRG Energy (NRG) United States $22.499B 21.08
CenterPoint Energy (CNP) United States $21.983B 20.82
Fortis (FTS) Canada $21.860B 18.32
CMS Energy (CMS) United States $21.125B 21.17
CLP Holdings (CLPHY) Hong Kong, SAR China $20.995B 0.00
Tenaga Nasional Berhad (TNABY) $20.386B 0.00
Edison (EIX) United States $20.093B 10.10
NiSource (NI) United States $18.788B 22.85
Eletrobras (EBR.B) Brazil $16.755B 0.00
Alliant Energy (LNT) United States $15.812B 20.27
Evergy (EVRG) United States $15.466B 18.03
Centrais El¿tricas Brasileiras SA (EBR) Brazil $14.891B 0.00
Power Assets Holdings (HGKGY) Hong Kong, SAR China $13.586B 0.00
China Resources Power Holdings (CRPJY) Hong Kong, SAR China $11.390B 0.00
Pinnacle West Capital (PNW) United States $10.321B 17.19
Korea Electric Power (KEP) South Korea $9.873B 3.56
OGE Energy (OGE) United States $8.911B 20.14
AES (AES) United States $7.587B 4.60
Companhia Paranaense De Energia - Copel (ELPC) $6.805B 0.00
Brookfield Renewable Partners (BEP) Bermuda $6.725B 0.00
IDACORP (IDA) United States $6.005B 20.57
Comp En De Mn Cemig ADS (CIG) Brazil $5.580B 5.49
Portland General Electric (POR) United States $4.789B 13.95
Enel Chile S.A (ENIC) Chile $4.703B 5.57
Pampa Energia S.A (PAM) Argentina $4.443B 12.53
Black Hills (BKH) United States $4.213B 15.01
Companhia Paranaense De Energia (COPEL) (ELP) Brazil $3.902B 0.00
Algonquin Power & Utilities (AQN) Canada $3.837B 10.64
Allete (ALE) United States $3.790B 18.65
Otter Tail (OTTR) United States $3.407B 11.36
MGE Energy (MGEE) United States $3.299B 27.86
NorthWestern (NWE) United States $3.283B 15.74
Avista (AVA) United States $2.969B 14.94
Hawaiian Electric Industries (HE) United States $1.892B 5.99
Kenon Holdings (KEN) Singapore $1.792B 30.50
Centuri Holdings (CTRI) United States $1.743B 0.00
Empresa Distribuidora Y Comercializadora Norte S.A (Edenor) (EDN) Argentina $1.731B 7.43
Innergex Renewable Energy (INGXF) Canada $1.221B 42.93
Red Electrica Corporacion SA (RDEIY) Spain $0.948B 0.00
Unitil (UTL) United States $0.921B 19.22
Genie Energy (GNE) United States $0.388B 9.65
Polar Power (POLA) United States $0.007B 0.00
Great Plains Energy Inc (GXP) United States $0.000B 0.00