| Symbol | Name | Country | Exchange |
|---|---|---|---|
| TAC | TransAlta Corporation | US | NYSE |
| CUTLF | Canadian Utilities Ltd | US | OTC |
| TRSWF | Transalta Renewables | US | OTC |
| ACO.X | Atco Ltd. | CA | TSX |
| CU | Canadian Utilities Limited | CA | TSX |
| TA | TransAlta Corporation | CA | TSX |
| 0TA | TransAlta Renewables Inc. | DE | F |