TransAlta (TAC)
What the price implies
A reverse DCF: instead of guessing a fair value, it asks what growth today's price already assumes. How it works.
Fundamental grade
Five factors scored 1 to 9 from TAC's latest numbers, weighted into one grade. It describes the business, not whether the stock is a buy.
Key numbers
Results from SEC filings
Fiscal years, from TransAlta's 10-K filings. Ten years of the full income statement, balance sheet and cash flow.
| Fiscal year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Revenue | $2.7B | $3.0B | $3.4B | $2.8B | $2.4B |
| Net income | -$537M | $50M | $695M | $229M | -$138M |
| Free cash flow | $512M | -$72M | $576M | $475M | $386M |
| EPS (diluted) | -$2.13 | $0.01 | $2.33 | $0.59 | -$0.64 |
| Operating margin | -8.8% | 17.8% | 32.5% | 20.6% | 5.8% |
Where the revenue comes from
Revenue by segments, fiscal 2025. Every breakdown, year by year.
Superinvestors who own TAC
From each investor's latest 13F filing (what a 13F shows). 4 of the investors we track hold it.
| Investor | Last quarter | Value | % of portfolio | Quarter |
|---|---|---|---|---|
| Howard Marks Oaktree Capital Management |
Trimmed | $41M | 0.73% | Q2 2026 |
| Hersh Cohen ClearBridge Investments |
New position | $19M | 0.02% | Q2 2026 |
| Joel Greenblatt Gotham Asset Management |
Trimmed | $1M | 0.00% | Q2 2026 |
| Jean-Marie Eveillard First Eagle Investment Management |
Trimmed | $281,377 | 0.0% | Q2 2026 |
Insider buying
Open-market purchases by TransAlta's executives and directors in the last 12 months, from SEC Form 4 filings. What insider buying tells you.
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In the full deep dive
Questions
Are TransAlta insiders buying the stock?
No open-market insider purchases of TAC in the last 12 months, according to SEC Form 4 filings.
Which superinvestors own TransAlta?
4 of the superinvestors Investingly tracks hold TAC in their latest 13F, including Howard Marks, Hersh Cohen, Joel Greenblatt.
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Prices and ratios as of Oct 11, 2026; statements from SEC filings. Information only, not investment advice. Superinvestor holdings come from 13F filings, which are filed up to 45 days after each quarter ends.