| 2024-12-05 | +15.4% | news | GuruFocus | TransAlta Corp (TAC) Stock Price Up 5.57% on Dec 5 - GuruFocus |
| 2024-12-05 | +15.4% | news | Seeking Alpha | TransAlta surges as Alberta touts $100B plan to attract AI data centers (NYSE:TAC) - Seeking Alpha |
| 2025-11-05 | -9.7% | earnings | Seeking Alpha | TransAlta Q3 2025 Earnings Preview |
| 2025-01-29 | +8.6% | earnings | Yahoo Finance | TransAlta Corporation (TAC) Stock Drops Amid DeepSeek AI Concerns and Uncertainty Over AI-Driven Energy Demand - Yahoo Finance |
| 2026-03-24 | +8.3% | earnings | MT Newswires | CIBC Keeps TransAlta's Outperformer Rating, C$25 Price Target Following Its Investor Day |
| 2026-03-24 | +8.3% | analyst | Seeking Alpha | TransAlta upgraded at National Bank Financial on path to double-digit EBITDA growth |
| 2026-03-24 | +8.3% | analyst | Seeking Alpha | TransAlta upgraded at National Bank Financial on path to double-digit EBITDA growth (TAC:NYSE) - Seeking Alpha |
| 2026-01-27 | +8.1% | news | GuruFocus | TransAlta Corp (TAC) Shares Up 3.86% on Jan 27 - GuruFocus |
| 2026-02-26 | +7.9% | earnings | Seeking Alpha | TransAlta Q4 2025 Earnings Preview |
| 2026-03-23 | +7.6% | news | GlobeNewswire | TransAlta Investor Day Highlights Solid Foundation and Attractive Growth to 2029 and Beyond |
| 2026-03-23 | +7.6% | analyst | Seeking Alpha | TransAlta Corporation (TA:CA) Analyst/Investor Day Transcript |
| 2026-03-23 | +7.6% | executive | Stock Titan | As CEO nears retirement, TransAlta bets on Alberta data centres - Stock Titan |
| 2025-05-07 | -7.2% | expansion | Seeking Alpha | Transalta announces strategic partnership and revised growth plans for 2025 |
| 2025-05-07 | -7.2% | earnings | Stock Titan | TransAlta Reports First Quarter 2025 Results and Reaffirms Annual Guidance - Stock Titan |
| 2025-11-06 | -7.1% | executive | Seeking Alpha | TransAlta President/CEO Kousinioris to retire, CFO Hunter named successor |
| 2025-11-06 | -7.1% | earnings | Seeking Alpha | TransAlta reports Q3 results |
| 2025-11-06 | -7.1% | earnings | Yahoo Finance | TransAlta Corp (TAC) Q3 2025 Earnings Call Highlights: Resilient Performance Amid Market Challenges - Yahoo Finance |
| 2025-11-06 | -7.1% | executive | Stock Titan | TransAlta (NYSE: TAC) to name CFO Joel Hunter CEO as Kousinioris retires Apr 30, 2026 - Stock Titan |
| 2025-12-17 | -7.1% | news | GuruFocus | TransAlta (TAC) Subsidiary Ordered to Keep Centralia Unit 2 Operable Until 2026 - GuruFocus |
| 2025-06-12 | +6.6% | analyst | Seeking Alpha | TransAlta takes off as Jefferies upgrades to Buy |
| 2026-02-27 | +6.4% | earnings | Seeking Alpha | TransAlta Corporation (TA:CA) Q4 2025 Earnings Call Transcript |
| 2026-02-27 | +6.4% | M&A | Seeking Alpha | TransAlta inks deal with CPPIB, Brookfield for Alberta data center |
| 2026-02-27 | +6.4% | earnings | Seeking Alpha | TransAlta raises quarterly dividend by 7.7% to CAD 0.07/share |
| 2026-02-27 | +6.4% | earnings | Seeking Alpha | TransAlta Non-GAAP EPS of -C$0.06, revenue of C$599M |
| 2026-02-27 | +6.4% | news | Stock Titan | TransAlta (NYSE: TAC) plans Keephills data centre with up to 1 GW load - Stock Titan |
| 2026-02-27 | +6.4% | news | Stock Titan | 1 GW Alberta data centre plan taps TransAlta as exclusive power provider - Stock Titan |
| 2026-02-27 | +6.4% | M&A | Seeking Alpha | TransAlta inks deal with CPPIB, Brookfield for Alberta data center (TAC:NYSE) - Seeking Alpha |
| 2026-02-27 | +6.4% | earnings | Benzinga | Top Wall Street Forecasters Revamp TransAlta Price Expectations Ahead Of Q4 Earnings - Benzinga |
| 2026-02-27 | +6.4% | news | Kalkine Media | TransAlta (NYSE:TAC) Jumps on NYSE Composite Volume Surge - Kalkine Media |
| 2021-08-10 | -6.3% | earnings | Zacks Investment Research | What date does TransAlta's (TAC) report Earnings - Earnings Calendar & Announcement - Zacks Investment Research |
| 2023-07-11 | +6.2% | M&A | Seeking Alpha | TransAlta to buy TransAlta Renewables for C$1.38B in cash and stock deal (NYSE:TAC) - Seeking Alpha |
| 2025-02-20 | +5.3% | earnings | Yahoo Finance | TransAlta Corp (TAC) Q4 2024 Earnings Call Highlights: Strong Financial Performance and ... - Yahoo Finance |
| 2024-03-12 | -5.0% | news | CNN | symbol__ Stock Quote Price and Forecast - CNN |
| 2026-01-17 | +4.9% | news | Seeking Alpha | TransAlta: Canada's Powerhouse Of The Energy Transition |
| 2026-01-17 | +4.9% | news | Seeking Alpha | TransAlta: Canada's Powerhouse Of The Energy Transition (NYSE:TAC) - Seeking Alpha |
| 2025-08-01 | +4.0% | earnings | Seeking Alpha | TransAlta Corporation 2025 Q2 - Results - Earnings Call Presentation |
| 2025-08-01 | +4.0% | earnings | Seeking Alpha | TransAlta Corporation (TAC) Q2 2025 Earnings Call Transcript |
| 2025-08-01 | +4.0% | earnings | Seeking Alpha | TransAlta GAAP EPS of -C$0.38, revenue of C$433M |
| 2025-11-07 | +3.9% | earnings | Seeking Alpha | TransAlta Corporation (TA:CA) Q3 2025 Earnings Call Transcript |
| 2025-11-07 | +3.9% | earnings | Seeking Alpha | TransAlta Corporation 2025 Q3 - Results - Earnings Call Presentation |
| 2025-10-08 | +3.7% | earnings | Stock Titan | Q3 2025 results release Nov. 6 — TransAlta to host conference call at 9:00 a.m. MT; replay and transcript available - Stock Titan |
| 2025-12-18 | -3.6% | news | Yahoo Finance | TransAlta Corporation (TAC): A Bull Case Theory - Yahoo Finance |
| 2026-03-19 | -3.4% | analyst | MT Newswires | Correction: CIBC Confirms Outperformer Rating and Target of $25 on TransAlta Ahead of Its Investor Day |
| 2026-03-19 | -3.4% | analyst | MT Newswires | CIBC Confirms Outperformer Rating and Target of $25 on TransAlta Ahead of Its Investor Day |
| 2026-04-20 | -3.1% | executive | GlobeNewswire | TransAlta Appoints Mike Politeski as Chief Financial Officer and Grant Arnold as Chief Commercial Officer |
| 2026-04-20 | -3.1% | executive | Seeking Alpha | TransAlta appoints Mike Politeski as CFO |
| 2026-04-20 | -3.1% | executive | Stock Titan | Leadership shifts at TransAlta (NYSE: TAC) as new CFO, CCO join - Stock Titan |
| 2026-04-20 | -3.1% | executive | Stock Titan | TransAlta adds finance, growth chiefs as CEO transition nears - Stock Titan |
| 2026-04-20 | -3.1% | news | Cổng thông tin điện tử tỉnh Tây Ninh | TransAlta Corporation (TAC) Stock Diagonal Spread (Weakens) 2026-04-20 - Pro Trader Recommendations - Cổng thông tin điện tử tỉnh Tây Ninh |
| 2025-10-22 | +3.0% | news | Seeking Alpha | TransAlta declares CAD 0.065 dividend |
| 2025-07-14 | +2.9% | news | Yahoo Finance | Here's Why You Should Add TransAlta Stock to Your Portfolio Now - Yahoo Finance |
| 2026-03-25 | +2.6% | analyst | Seeking Alpha | TransAlta Corporation (TA:CA) Analyst/Investor Day - Slideshow |
| 2024-08-03 | -2.3% | news | intelligentinvestor.com.au | TransAlta Corp (NYSE:TAC) - intelligentinvestor.com.au |
| 2025-02-21 | -2.3% | news | Seeking Alpha | TransAlta’s Growth Story Has Holes And I’m Not Buying It (NYSE:TAC) - Seeking Alpha |
| 2025-08-28 | +2.1% | news | Yahoo Finance | Why TransAlta Stock Deserves a Spot in Your Portfolio Right Now - Yahoo Finance |
| 2026-03-05 | -2.1% | earnings | Seeking Alpha | TransAlta Corporation 2025 Q4 - Results - Earnings Call Presentation |
| 2025-12-09 | +1.9% | expansion | Seeking Alpha | TransAlta signs tolling agreement to convert Washington facility from coal to gas |
| 2025-12-15 | -1.5% | news | Seeking Alpha | TransAlta declares CAD 0.065 dividend |
| 2026-03-07 | -1.4% | earnings | Seeking Alpha | Mid-Cap utility stocks ranked by quant ratings after earnings season |
| 2026-03-28 | -1.3% | executive | MarketBeat | TransAlta Investor Day: CEO Transition, 2026 EBITDA View, and Growth Bets on Data Centers & Centralia |
| 2026-04-22 | -1.3% | news | Insider Monkey | Is TransAlta Corporation (TAC) the High Growth Canadian Stock to Buy Now? |
| 2026-04-22 | -1.3% | news | Insider Monkey | Is TransAlta Corporation (TAC) the High Growth Canadian Stock to Buy Now? - Insider Monkey |
| 2026-04-22 | -1.3% | earnings | Cổng thông tin điện tử tỉnh Lào Cai | TAC (TransAlta Corporation Ordinary Shares) Q4 2025 steep EPS miss pushes shares 6.22% lower in today’s trading. - P/S Ratio - Cổng thông tin điện tử tỉnh Lào Cai |
| 2026-04-07 | -1.2% | news | GlobeNewswire | TransAlta to Host Annual and Special Meeting of Shareholders and First Quarter 2026 Results Conference Call |
| 2026-04-07 | -1.2% | earnings | Stock Titan | TransAlta sets virtual shareholder vote for Apr. 30, earnings on May 6 - Stock Titan |
| 2026-04-07 | -1.2% | earnings | Stock Titan | TransAlta (NYSE: TAC) sets 2026 shareholder meeting and Q1 2026 results call - Stock Titan |
| 2025-05-24 | +1.1% | news | Seeking Alpha | EPA draft plan would end limits on greenhouse gases from power plants - report |
| 2025-05-08 | +1.1% | earnings | Yahoo Finance | TransAlta Corp (TAC) Q1 2025 Earnings Call Highlights: Strategic Partnerships and Dividend ... - Yahoo Finance |
| 2026-03-17 | +0.9% | news | MT Newswires | TransAlta Says US Department of Energy Orders Centralia Unit 2 to Remain Available Through June 14 |
| 2026-03-17 | +0.9% | news | Stock Titan | Millions of TransAlta preferred shares switch series March 31 - Stock Titan |
| 2026-03-17 | +0.9% | news | Stock Titan | TransAlta (NYSE: TAC) updates Series A and B preferred share mix - Stock Titan |
| 2026-03-17 | +0.9% | earnings | Stock Titan | DOE keeps TransAlta (NYSE: TAC) Centralia Unit 2 available 90 days - Stock Titan |
| 2026-03-17 | +0.9% | news | GlobeNewswire | TransAlta Corporation Announces Conversion Results for Series A and B Preferred Shares - GlobeNewswire |
| 2026-03-31 | +0.9% | legal | Business Wire | Cybersecurity Firm TAC Security Surpasses 10,000 Clients, Emerges Among the Top 5 Vulnerability Management, AppSec Companies Globally |
| 2025-10-14 | -0.7% | analyst | The Globe and Mail | TransAlta Corp: Jefferies Raised Valution on Free Cash Flow Upgrade - The Globe and Mail |
| 2025-05-19 | +0.7% | news | Intellectia AI | TAC Forecast — Price Prediction for 2026. Should I Buy TAC? - Intellectia AI |
| 2025-11-17 | +0.7% | M&A | Seeking Alpha | TransAlta expands in Ontario with C$95M gas asset acquisition |
| 2025-11-17 | +0.7% | news | Stock Titan | TransAlta (NYSE: TAC) to buy 310 MW Ontario gas fleet for $95M, adding ~$30M EBITDA - Stock Titan |
| 2025-06-04 | -0.5% | analyst | Seeking Alpha | TransAlta Corporation Shares Upgraded To Buy On Two Major Tailwinds |
| 2024-12-20 | +0.4% | news | Yahoo Finance | TransAlta (TAC) Positioned for AI Growth: What’s Next? - Yahoo Finance |
| 2022-09-10 | -0.3% | analyst | Zacks Investment Research | What is the current Price Target and Forecast for TransAlta (TAC) - Zacks Investment Research |
| 2025-10-21 | -0.2% | earnings | Seeking Alpha | TransAlta: Taking Profit Never Hurt Anyone |
| 2025-10-21 | -0.2% | earnings | Seeking Alpha | TransAlta: Taking Profit Never Hurt Anyone (NYSE:TAC) - Seeking Alpha |
| 2025-07-30 | -0.2% | news | Seeking Alpha | TransAlta declares CAD 0.065 dividend |
| 2026-04-06 | -0.1% | news | UBND thành phố Hải Phòng | Should I Buy TransAlta Corporation (TAC) Stock in 2026 | Price at $13.50, Up 0.15% - Scalping - UBND thành phố Hải Phòng |
| 2025-03-20 | +0.0% | news | Intellectia AI | TAC Stock: Price, Forecast, Financials & AI Analysis - Intellectia AI |
| 2026-03-04 | +0.0% | news | Yahoo Finance | TransAlta (TAC) Raises Dividend Following Strong 2025 Free Cash Flow Performance - Yahoo Finance |
| 2026-04-24 | — | news | GuruFocus | A Look at TransAlta Corp (TAC) After 3.4% Gain -- GF Value $6.34 vs Price $12.49 - GuruFocus |