TRANSALTA CORP TAC
COM · Common Stock · CUSIP 89346D107 · ISIN CA89346D1078
Global electricity generation company
- SectorUtilities
- IndustryElectric Services
- HeadquartersCalgary, Canada
- Founded1909
- Websitetransalta.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($14.7m this quarter). Holder counts are more reliable. Shares outstanding: 297.5m as of 2024-12-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $14.15. Options: 18 managers hold calls ($36.6m notional), 14 hold puts ($9.8m).
Trends to Q4 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 103 |
| Q4 2022 | 111 |
| Q1 2023 | 111 |
| Q2 2023 | 128 |
| Q3 2023 | 124 |
| Q4 2023 | 137 |
| Q1 2024 | 139 |
| Q2 2024 | 142 |
| Q3 2024 | 157 |
| Q4 2024 | 185 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2023 | 55 | 55 |
| Q2 2023 | 73 | 47 |
| Q3 2023 | 67 | 59 |
| Q4 2023 | 93 | 53 |
| Q1 2024 | 82 | 57 |
| Q2 2024 | 84 | 63 |
| Q3 2024 | 92 | 65 |
| Q4 2024 | 92 | 81 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2024 | $2.8m | $820.8k | 0.30 |
| Q2 2024 | $1.8m | $1.5m | 0.85 |
| Q3 2024 | $15.1m | $8.1m | 0.54 |
| Q4 2024 | $36.6m | $9.8m | 0.27 |
Biggest buyers
| Brookfield Corp /ON/ | Added | +35.5m |
| MACKENZIE FINANCIAL CORP | Added | +9.0m |
| Connor, Clark & Lunn Investment Management Ltd. | Added | +6.9m |
| Artisan Partners Limited Partnership | New | +4.7m |
| AMERICAN CENTURY COMPANIES INC | Added | +4.1m |
| BANK OF AMERICA CORP /DE/ | Added | +4.0m |
| FMR LLC | Added | +3.7m |
| UBS Group AG | Added | +2.2m |
| Rubric Capital Management LP | Added | +2.0m |
| MORGAN STANLEY | Added | +1.9m |
Biggest sellers
| ROYAL BANK OF CANADA | Reduced | -12.0m |
| MILLENNIUM MANAGEMENT LLC | Reduced | -2.9m |
| Yaupon Capital Management LP | Reduced | -2.0m |
| CIBC Asset Management Inc | Reduced | -1.7m |
| NATIONAL BANK OF CANADA /FI/ | Reduced | -1.4m |
| Diameter Capital Partners LP | Reduced | -1.2m |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | -1.2m |
| J. Goldman & Co LP | Sold out | -953.5k |
| CIBC WORLD MARKET INC. | Reduced | -650.3k |
| BANK OF NOVA SCOTIA | Reduced | -515.2k |
Biggest calls
| MAPLELANE CAPITAL, LLC | New | $10.2m718.2k shares |
| PEAK6 LLC | First filing | $8.9m628.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $3.6m253.3k shares |
| SIG North Trading, ULC | Reduced | $2.8m196.4k shares |
| SCOGGIN MANAGEMENT LP | New | $1.8m125.0k shares |
| SIMPLEX TRADING, LLC | Added | $1.6m114.4k shares |
| ROYAL BANK OF CANADA | Reduced | $1.6m111.6k shares |
| Brevan Howard Capital Management LP | New | $1.4m100.0k shares |
| GROUP ONE TRADING LLC | Added | $1.1m75.3k shares |
| CITADEL ADVISORS LLC | Added | $935.3k66.1k shares |
Biggest puts
| AYAL Capital Advisors Ltd | New | $3.4m240.0k shares |
| SIG North Trading, ULC | Reduced | $1.5m108.9k shares |
| K2 PRINCIPAL FUND, L.P. | New | $1.4m100.0k shares |
| ROYAL BANK OF CANADA | Added | $1.1m80.0k shares |
| Jefferies Financial Group Inc. | New | $827.8k58.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $553.3k39.1k shares |
| TORONTO DOMINION BANK | New | $307.9k21.8k shares |
| CITADEL ADVISORS LLC | Reduced | $229.2k16.2k shares |
| WOLVERINE TRADING, LLC | New | $162.8k11.4k shares |
| SIMPLEX TRADING, LLC | Reduced | $93.0k6.6k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
BROOKFIELD Corp /ON/
13D · may seek influence
filed 2025-01-08
Stated purposeItem 4 of the original Schedule 13D is hereby supplemented as follows: The Purchaser Reporting Persons disposed of an aggregate 8,600,000 Common Shares in a block trade pursuant to Regulation S under the U.S. Securities Act of 1933, as amended, for aggregate cash proceeds of approximately C$168,990,000 (excluding brokerage commission), at a price of C$19.65 per Common Share. The disposition of the Common Shares reported in this Amendment No. 6 more closely aligns the Reporting Persons' aggregate share ownership with certain thresholds under the Investment Agreement. Although the Reporting Persons have no current specific plan or proposal for further dispositions of the Common Shares, the Reporting Persons also may, at any time and from time to time, subject to compliance at all relevant … Full filing |
9.0% |
| ROYAL BANK OF CANADA 13G · institution -1.0 pts · filed 2026-02-13 | 7.7% |
| BANK OF MONTREAL /CAN/ 13G · institution new · filed 2026-05-13 | 6.0% |
| Rubric Capital Management LP 13G · institution new · filed 2025-07-09 | 5.4% |
Fell to 5% or below in the last year: FMR LLC (4.6%, 2026-05-06), MILLENNIUM MANAGEMENT LLC (4.4%, 2025-11-14), GOLDMAN SACHS GROUP INC (2.4%, 2025-11-13)
Insider purchases and sales in Q4 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
None reported in Q4 2024.
Holders, Q4 2024
| Manager | Shares | Change |
|---|---|---|
| Brookfield Corp /ON/ 3.05% of their portfolio | 71.0m $1.0bn | Added +35.5m |
| ROYAL BANK OF CANADA 0.09% of their portfolio | 29.9m $423.0m | Reduced -12.0m |
| MACKENZIE FINANCIAL CORP 0.10% of their portfolio | 15.0m $213.0m | Added +9.0m |
| VANGUARD GROUP INC 0.00% of their portfolio | 10.2m $144.7m | Added +150.6k |
| BANK OF MONTREAL /CAN/ 0.07% of their portfolio | 9.3m $131.2m | Added +1.1m |
| FMR LLC 0.01% of their portfolio | 8.3m $116.8m | Added +3.7m |
| Connor, Clark & Lunn Investment Management Ltd. 0.51% of their portfolio | 8.0m $112.9m | Added +6.9m |
| Rubric Capital Management LP 1.96% of their portfolio | 7.6m $107.7m | Added +2.0m |
| MILLENNIUM MANAGEMENT LLC 0.07% of their portfolio | 5.5m $77.8m | Reduced -2.9m |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 5.4m $76.2m | Added +4.0m |
| Waratah Capital Advisors Ltd. 4.26% of their portfolio | 5.4m $76.1m | Added +139.2k |
| AMERICAN CENTURY COMPANIES INC 0.04% of their portfolio | 4.9m $68.9m | Added +4.1m |
| Artisan Partners Limited Partnership 0.10% of their portfolio | 4.7m $67.0m | New |
| TD Asset Management Inc 0.04% of their portfolio | 3.4m $48.5m | Added +321.5k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.04% of their portfolio | 3.4m $48.0m | Reduced -1.2m |
| MORGAN STANLEY 0.00% of their portfolio | 2.9m $41.1m | Added +1.9m |
| Federation des caisses Desjardins du Quebec 0.18% of their portfolio | 2.6m $36.0m | Reduced -142.2k |
| Potrero Capital Research LLC 13.91% of their portfolio | 2.3m $32.9m | Added +1.8m |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 2.3m $32.1m | Added +631.5k |
| UBS Group AG 0.01% of their portfolio | 2.3m $32.1m | Added +2.2m |
| BANK OF NOVA SCOTIA 0.05% of their portfolio | 2.1m $30.4m | Reduced -515.2k |
| TORONTO DOMINION BANK 0.05% of their portfolio | 2.0m $28.3m | Added +266.1k |
| CIBC WORLD MARKET INC. 0.06% of their portfolio | 1.8m $25.2m | Reduced -650.3k |
| RENAISSANCE TECHNOLOGIES LLC 0.04% of their portfolio | 1.7m $24.0m | Reduced -37.1k |
| Point72 Asset Management, L.P. 0.06% of their portfolio | 1.6m $22.4m | Added +300.1k |
| NATIONAL BANK OF CANADA /FI/ 0.03% of their portfolio | 1.5m $21.3m | Reduced -1.4m |
| INTACT INVESTMENT MANAGEMENT INC. 0.66% of their portfolio | 1.3m $19.0m | Reduced -262.4k |
| Diameter Capital Partners LP 3.36% of their portfolio | 1.2m $17.7m | Reduced -1.2m |
| Rokos Capital Management LLP 0.38% of their portfolio | 1.2m $17.5m | New |
| Beryl Capital Management LLC 3.61% of their portfolio | 1.1m $16.0m | Added +342.6k |
| MAPLELANE CAPITAL, LLC 1.70% of their portfolio | 1.1m $15.7m | Added +411.8k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 917.9k $13.0m | Added +62.3k |
| FIRST MANHATTAN CO. LLC. 0.04% of their portfolio | 889.8k $12.6m | Reduced -27.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 866.5k $12.2m | Reduced -47.8k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 833.7k $11.8m | Added +402.5k |
| Clayton Partners LLC 7.63% of their portfolio | 779.9k $11.0m | Reduced -216.9k |
| Yaupon Capital Management LP 0.63% of their portfolio | 705.8k $10.0m | Reduced -2.0m |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 692.5k $9.8m | Reduced -71.0k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio | 688.7k $9.8m | Reduced -116.3k |
| ARDSLEY ADVISORY PARTNERS LP 1.85% of their portfolio | 675.0k $9.5m | Reduced -225.0k |
| Global IMC LLC 1.62% of their portfolio | 638.2k $9.0m | New |
| SCOTIA CAPITAL INC. 0.04% of their portfolio | 581.3k $8.2m | Reduced -267.2k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.06% of their portfolio | 521.5k $7.4m | Added +483.7k |
| STATE STREET CORP 0.00% of their portfolio | 513.2k $7.3m | Reduced -471.4k |
| Artemis Investment Management LLP 0.10% of their portfolio | 505.5k $7.1m | New |
| Swiss National Bank 0.00% of their portfolio | 501.1k $7.1m | Reduced -7.3k |
| TD Waterhouse Canada Inc. 0.05% of their portfolio | 461.6k $6.5m | Reduced -439.2k |
| AYAL Capital Advisors Ltd 3.26% of their portfolio | 452.3k $6.4m | Unchanged |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 405.7k $5.7m | Added +309.5k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 397.4k $5.6m | Added +215.0k |
| Candelo Capital Management LP 3.53% of their portfolio | 395.9k $5.6m | New |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 385.7k $5.5m | Added +331.6k |
| Timelo Investment Management Inc. 10.62% of their portfolio | 333.9k $4.7m | Reduced -375.0k |
| CIBC Asset Management Inc 0.02% of their portfolio | 328.1k $4.6m | Reduced -1.7m |
| Bridgewater Associates, LP 0.02% of their portfolio | 307.8k $4.4m | New |
| OnyxPoint Global Management LP 2.00% of their portfolio | 300.0k $4.2m | Unchanged |
| PINNBROOK CAPITAL MANAGEMENT LP 1.47% of their portfolio | 295.8k $4.2m | New |
| Mitsubishi UFJ Trust & Banking Corp 0.01% of their portfolio | 295.3k $4.2m | Reduced -51.1k |
| PCJ Investment Counsel Ltd. 1.40% of their portfolio | 294.5k $4.2m | Added +46.2k |
| Covalis Capital LLP 0.59% of their portfolio | 283.3k $4.0m | New |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 271.2k $3.8m | Added +175.5k |
| Janney Montgomery Scott LLC 0.01% of their portfolio | 259.3k $3.7m | Added +237.6k |
| Brevan Howard Capital Management LP 0.09% of their portfolio | 255.0k $3.6m | New |
| Legal & General Group Plc 0.00% of their portfolio | 252.9k $3.6m | Reduced -1.1k |
| LOUISBOURG INVESTMENTS INC. 0.90% of their portfolio | 243.3k $3.4m | New |
| BlackRock, Inc. 0.00% of their portfolio | 241.9k $3.4m | Added +3.6k |
| Tacita Capital Inc 2.26% of their portfolio | 224.1k $3.2m | Reduced -20.9k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.00% of their portfolio | 221.4k $3.1m | Reduced -1.9k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 204.6k $2.9m | Reduced -6.9k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 198.8k $2.8m | Reduced -416.3k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 191.0k $2.7m | Added +189.2k |
| GROUP ONE TRADING LLC 0.08% of their portfolio | 166.5k $2.4m | Added +162.1k |
| TUDOR INVESTMENT CORP ET AL 0.02% of their portfolio | 164.8k $2.3m | Reduced -123.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 163.5k $2.3m | Unchanged |
| BARCLAYS PLC 0.00% of their portfolio | 147.7k $2.1m | Added +4.6k |
| DORCHESTER WEALTH MANAGEMENT Co 0.39% of their portfolio | 139.6k $2.0m | Reduced -2.2k |
| ExodusPoint Capital Management, LP 0.02% of their portfolio | 135.2k $1.9m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 126.8k $1.8m | Added +4.1k |
| SCOGGIN MANAGEMENT LP 0.93% of their portfolio | 125.0k $1.8m | New |
| Wealth High Governance Capital Ltda 0.63% of their portfolio | 124.1k $1.8m | New |
| Alberta Investment Management Corp 0.01% of their portfolio | 121.2k $1.7m | Unchanged |
| BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp 0.01% of their portfolio | 117.8k $1.7m | Reduced -9.7k |
| Lombard Odier Asset Management (USA) Corp 0.62% of their portfolio | 114.1k $1.6m | Reduced -15.9k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 104.3k $1.5m | New |
| K.J. Harrison & Partners Inc 0.22% of their portfolio | 100.0k $1.4m | Unchanged |
| Informed Momentum Co LLC 0.20% of their portfolio | 98.9k $1.4m | New |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 98.0k $1.4m | Reduced -49.6k |
| Virtus Investment Advisers, LLC 1.08% of their portfolio | 97.0k $1.4m | Unchanged |
| Trexquant Investment LP 0.01% of their portfolio | 88.1k $1.2m | Reduced -88.6k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 86.7k $1.2m | Reduced -87.9k |
| Polar Asset Management Partners Inc. 0.02% of their portfolio | 82.8k $1.2m | Added +32.9k |
| VAN ECK ASSOCIATES CORP 0.00% of their portfolio | 80.0k $1.1m | Added +5.6k |
| Guardian Partners Inc. 0.11% of their portfolio | 79.3k $1.1m | First filing |
| Heronetta Management, L.P. 0.89% of their portfolio | 77.0k $1.6m | Unchanged |
| Mariner, LLC 0.00% of their portfolio | 74.5k $1.1m | Added +8.2k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 73.9k $1.0m | Added +5.2k |
| Gotham Asset Management, LLC 0.01% of their portfolio | 73.1k $1.0m | Added +13.1k |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 72.4k $1.0m | Reduced -483.4k |
| Invesco Ltd. 0.00% of their portfolio | 72.3k $1.0m | Reduced -4.3k |
| Vident Advisory, LLC 0.02% of their portfolio | 69.0k $976.4k | Added +3.5k |