Who owns TransAlta Corporation?
Institutional ownership of TAC from SEC Form 13F filings across 124 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
124
13F holders
$2.70B
value, 2026 filers
64.7%
of shares outstanding (193.3M sh)
21
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of TAC's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | ROYAL BANK OF CANADA | 28.2M | $390.1M | 0.1% | 9.4% | +11.4% |
| 2 | Brookfield Corp /ON/ | 27.0M | $372.9M | 0.5% | 9% | 0.0% |
| 3 | BANK OF MONTREAL /CAN/ | 21.9M | $302.3M | 0.1% | 7.3% | +23.5% |
| 4 | TORONTO DOMINION BANK | 11.7M | $161.8M | 0.2% | 3.9% | +155.6% |
| 5 | MORGAN STANLEY | 11.4M | $157.6M | 0.0% | 3.8% | +117.2% |
| 6 | GOLDMAN SACHS GROUP INC | 10.6M | $146.9M | 0.0% | 3.6% | +41.1% |
| 7 | MILLENNIUM MANAGEMENT LLC | 10.4M | $144.1M | 0.1% | 3.5% | +25.4% |
| 8 | BANK OF AMERICA CORP /DE/ | 8.9M | $123.4M | 0.0% | 3% | +12.2% |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | 7.8M | $107.9M | 0.0% | 2.6% | -49.6% |
| 10 | AMERICAN CENTURY COMPANIES INC | 6.8M | $94.5M | 0.0% | 2.3% | +8.4% |
| 11 | MACKENZIE FINANCIAL CORP | 4.9M | $96.0M | 0.1% | 1.6% | +4.5% |
| 12 | NORGES BANKNEW | 3.6M | $49.5M | 0.0% | 1.2% | new |
| 13 | CITADEL ADVISORS LLC | 3.2M | $44.1M | 0.0% | 1.1% | +95.2% |
| 14 | VANGUARD FIDUCIARY TRUST CO | 2.4M | $33.1M | 0.0% | 0.8% | +1.4% |
| 15 | CIBC WORLD MARKET INC. | 2.3M | $31.8M | 0.1% | 0.8% | +0.8% |
| 16 | FMR LLC | 2.1M | $29.4M | 0.0% | 0.7% | -84.4% |
| 17 | Rokos Capital Management LLP | 2.1M | $28.5M | 0.1% | 0.7% | -10.1% |
| 18 | UBS Group AG | 1.9M | $25.7M | 0.0% | 0.6% | +2.2% |
| 19 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.7M | $23.4M | 0.0% | 0.6% | +307.8% |
| 20 | NATIONAL BANK OF CANADA /FI/ | 1.5M | $21.0M | 0.0% | 0.5% | -26.7% |
| 21 | Man Group plc | 1.4M | $19.6M | 0.0% | 0.5% | -33.0% |
| 22 | Clearbridge Investments, LLCNEW | 1.3M | $18.7M | 0.0% | 0.5% | new |
| 23 | BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp | 1.2M | $16.3M | 0.1% | 0.4% | +420.9% |
| 24 | Balyasny Asset Management L.P. | 1.1M | $15.2M | 0.0% | 0.4% | -30.6% |
| 25 | CITIGROUP INC | 1.1M | $15.0M | 0.0% | 0.4% | +431.8% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.