TransAlta (TAC) News Today $13.86 +0.22 (+1.59%) Closing price 09/22/2025 03:58 PM EasternExtended Trading$13.59 -0.27 (-1.92%) As of 09/22/2025 07:45 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Headlines Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock TAC Latest News All Sources Trusted Sources MarketBeat Barchart Benzinga Bloomberg GlobeNewswire GuruFocus MarketWatch Motley Fool NASDAQ PR Newswire Reuters Seeking Alpha TalkMarkets The Street TipRanks The Wall Street Journal Wall Street Zen Yahoo Finance Source Sentiment refers to the positivity or negativity of each headline according to our language processing algorithm. Sentiment All Sentiments Very Positive Positive Neutral Negative Very Negative Most Recent September 2025 August 2025 July 2025 June 2025 May 2025 April 2025 March 2025 February 2025 January 2025 December 2024 November 2024 October 2024 September 2024 August 2024 July 2024 June 2024 May 2024 April 2024 March 2024 February 2024 January 2024 December 2023 November 2023 October 2023 September 2023 August 2023 July 2023 June 2023 May 2023 April 2023 March 2023 February 2023 January 2023 December 2022 November 2022 October 2022 Time Period TransAlta to Host 2025 Investor DaySeptember 18, 2025 | financialpost.comFTransAlta to Host 2025 Investor DaySeptember 18, 2025 | globenewswire.comDynamic Technology Lab Private Ltd Invests $313,000 in TransAlta Corporation $TACSeptember 15, 2025 | marketbeat.comTransAlta Corporation $TAC is BROOKFIELD Corp ON's 9th Largest PositionSeptember 14, 2025 | marketbeat.comTransAlta Corporation $TAC Shares Bought by Yaupon Capital Management LPSeptember 11, 2025 | marketbeat.comShort Interest in TransAlta Corporation (NYSE:TAC) Rises By 39.1%September 10, 2025 | marketbeat.comTransAlta Corporation (NYSE:TAC) Given Average Recommendation of "Buy" by AnalystsSeptember 9, 2025 | marketbeat.comMillennium Management LLC Acquires 10,957,858 Shares of TransAlta Corporation $TACSeptember 8, 2025 | marketbeat.comCanada Pension Plan Investment Board Takes $4.20 Million Position in TransAlta Corporation $TACSeptember 6, 2025 | marketbeat.comArdsley Advisory Partners LP Sells 545,000 Shares of TransAlta Corporation $TACSeptember 5, 2025 | marketbeat.comTransAlta Corporation $TAC Shares Sold by Federation des caisses Desjardins du QuebecSeptember 5, 2025 | marketbeat.comTrexquant Investment LP Purchases 265,597 Shares of TransAlta Corporation $TACSeptember 5, 2025 | marketbeat.comCaption Management LLC Acquires 60,044 Shares of TransAlta Corporation $TACSeptember 3, 2025 | marketbeat.comWellington Management Group LLP Sells 180,484 Shares of TransAlta Corporation $TACSeptember 2, 2025 | marketbeat.comNuveen LLC Takes $2.06 Million Position in TransAlta Corporation $TACSeptember 1, 2025 | marketbeat.comClayton Partners LLC Cuts Holdings in TransAlta Corporation $TACAugust 31, 2025 | marketbeat.comQuantbot Technologies LP Makes New Investment in TransAlta Corporation $TACAugust 28, 2025 | marketbeat.comTransAlta Corporation $TAC Stock Position Lifted by Invesco Ltd.August 28, 2025 | marketbeat.comCharles Schwab Investment Management Inc. Trims Stock Position in TransAlta Corporation $TACAugust 28, 2025 | marketbeat.comBRITISH COLUMBIA INVESTMENT MANAGEMENT Corp Acquires 579,577 Shares of TransAlta Corporation $TACAugust 27, 2025 | marketbeat.comTransAlta Corporation $TAC Shares Acquired by Vanguard Group Inc.August 25, 2025 | marketbeat.comVersor Investments LP Takes $526,000 Position in TransAlta Corporation $TACAugust 22, 2025 | marketbeat.comAmerican Century Companies Inc. Raises Stake in TransAlta Corporation $TACAugust 22, 2025 | marketbeat.comTransAlta Corporation (NYSE:TAC) Short Interest UpdateAugust 20, 2025 | marketbeat.comSwiss National Bank Purchases 51,500 Shares of TransAlta Corporation $TACAugust 20, 2025 | marketbeat.comSummit Securities Group LLC Decreases Stake in TransAlta Corporation (NYSE:TAC)August 19, 2025 | marketbeat.comAigen Investment Management LP Buys Shares of 62,823 TransAlta Corporation (NYSE:TAC)August 13, 2025 | marketbeat.comConnor Clark & Lunn Investment Management Ltd. Reduces Holdings in TransAlta Corporation (NYSE:TAC)August 11, 2025 | marketbeat.comTransAlta FY2026 EPS Boosted by National Bank FinancialAugust 8, 2025 | marketbeat.comQ2 Earnings Estimate for TransAlta Issued By Atb Cap MarketsAugust 7, 2025 | marketbeat.comAnalysts Offer Predictions for TransAlta FY2025 EarningsAugust 7, 2025 | marketbeat.comScotia Capital Inc. Sells 253,284 Shares of TransAlta Corporation (NYSE:TAC)August 7, 2025 | marketbeat.comTD Securities Forecasts Strong Price Appreciation for TransAlta (NYSE:TAC) StockAugust 6, 2025 | marketbeat.comJupiter Asset Management Ltd. Makes New Investment in TransAlta Corporation (NYSE:TAC)August 5, 2025 | marketbeat.comTransAlta (NYSE:TAC) Posts Quarterly Earnings Results, Beats Expectations By $0.06 EPSAugust 4, 2025 | marketbeat.comBank of Nova Scotia Reduces Position in TransAlta Corporation (NYSE:TAC)August 4, 2025 | marketbeat.comTransAlta Corporation (TAC) Q2 2025 Earnings Call TranscriptAugust 1, 2025 | seekingalpha.comTransAlta Corporation 2025 Q2 - Results - Earnings Call PresentationAugust 1, 2025 | seekingalpha.comTransAlta Reports Strong Second Quarter 2025 Results, Advancement of Strategic Priorities and Reaffirms GuidanceAugust 1, 2025 | globenewswire.comTransAlta Corporation (NYSE:TAC) Plans Quarterly Dividend of $0.07July 31, 2025 | marketbeat.comTransAlta Corporation (NYSE:TAC) Shares Purchased by Mackenzie Financial CorpJuly 30, 2025 | marketbeat.comTD Asset Management Inc Has $26.52 Million Stock Position in TransAlta Corporation (NYSE:TAC)July 30, 2025 | marketbeat.comTransAlta Declares Quarterly Dividends for 2025July 29, 2025 | tipranks.comTransAlta Declares DividendsJuly 29, 2025 | financialpost.comFTransAlta Declares DividendsJuly 29, 2025 | globenewswire.com421,968 Shares in TransAlta Corporation (NYSE:TAC) Purchased by Allianz Asset Management GmbHJuly 29, 2025 | marketbeat.comTransAlta (TAC) Expected to Announce Quarterly Earnings on FridayJuly 25, 2025 | marketbeat.comTransAlta FY2025 EPS Estimate Increased by Atb Cap MarketsJuly 21, 2025 | marketbeat.comTransAlta Corporation (NYSE:TAC) Receives Average Rating of "Buy" from BrokeragesJuly 20, 2025 | marketbeat.comScotiabank Upgrades TransAlta (TAC)July 19, 2025 | msn.com Get TransAlta News Delivered to You Automatically Sign up to receive the latest news and ratings for TAC and its competitors with MarketBeat's FREE daily newsletter. 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Our company news sentiment scores track the average news sentiment of articles about each company over the most recent 7 days in order to identify companies that are receiving positive press. TAC News Sentiment▼0.890.92▲Average Utilities News Sentiment TAC News Coverage Learn about the media coverage comparison. We track news headlines from hundreds of news outlets and tag them by company. This chart compares the number of articles about this company in the last seven days compared with the average number of articles about this company on a typical week. TAC Articles This Week▼25▲TAC Articles Average Week Get the Latest News and Ratings for TAC and Related Stocks Enter your email address to receive the latest news and analysts' ratings for TransAlta and its competitors. 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