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Disclosery

TAC TRANSALTA CORP

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COM (common), issuer CIK 1144800

159 managers (161 13F filers) reported a position in TAC shares at 2025-09-30, 222,932,261 shares in all. 23 filers opened a position and 30 filers sold out during the quarter.

Managers
159
13F filers
161
New
23
Added
60
Reduced
55
Sold out
30
Shares held by filers
222,932,261

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA34,722,931$475M0.08%-993,54513F-HRTimelineGroup
Brookfield Corp /ON/in group Brookfield Corp /ON/26,942,322$368M0.43%+5,54213F-HRTimelineGroup
FMR LLCin group FMR LLC22,621,020$309M0.02%+5,704,25313F-HRTimelineGroup
Rubric Capital Management LP15,948,451$218M2.93%013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC13,115,689$179M0.14%-5,107,70413F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding10,988,116$150M+242,344Timeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/10,425,309$142M0.06%+1,369,83013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY8,091,729$111M0.01%-757,75013F-HR/ATimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/7,233,133$98.9M0.01%-344,53113F-HR/ATimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC6,716,789$91.8M0.01%-5,152,71313F-HRTimelineGroup
OAKTREE CAPITAL MANAGEMENT LPin group Oaktree Capital Holdings, LLC6,415,253$87.6M1.46%+330,00013F-HRTimelineGroup
MACKENZIE FINANCIAL CORP4,462,328$60.9M0.07%-542,39313F-HRTimeline
UBS Group AGgroup of 2 filers holding4,207,052$57.5M+1,212,325Timeline
Arvin Capital Management LP3,107,000$42.5M9.83%+173,50013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC3,006,296$41.1M0.02%-50,05113F-HRTimelineGroup
Aventail Capital Group, LP2,829,643$38.6M1.84%new13F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK2,778,514$37.9M0.07%+439,04713F-HRTimelineGroup
Rokos Capital Management LLPin group Rokos Capital Management LLP2,760,467$37.7M0.47%+1,992,23213F-HRTimelineGroup
Potrero Capital Research LLC2,518,944$34.4M10.46%013F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/1,564,936$21.3M0.02%+22,50013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS1,502,013$20.5M0.02%new13F-HRTimelineGroup
CIBC WORLD MARKET INC.1,482,899$20.3M0.04%-1,144,11813F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,440,732$19.7M<0.01%+140,44413F-HRTimelineGroup
Yaupon Capital Management LP1,394,087$19M0.98%+233,59313F-HRTimeline
Artemis Investment Management LLP1,355,113$18.5M0.23%+35,38813F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,235,848$16.9M<0.01%-12,98013F-HRTimelineGroup
BANK OF NOVA SCOTIAin group BANK OF NOVA SCOTIA1,233,715$16.9M0.03%-82,91513F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC1,030,000$14.1M0.02%-357,40013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC971,320$13.3M0.01%-319,99113F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…967,099$13.2M0.04%-39,50013F-HRTimeline
WESTERLY CAPITAL MANAGEMENT, LLC900,000$12.3M3.9%+132,50013F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co898,258$12.3M<0.01%+95,77013F-HRTimelineGroup
TD Asset Management Inc877,747$12M0.01%-389,05413F-HRTimeline
FIRST MANHATTAN CO. LLC.856,047$11.7M0.03%-7,18513F-HRTimeline
Man Group plcin group Man Group plc807,199$11M0.02%new13F-HRTimelineGroup
Federation des caisses Desjardins du Qu…777,942$10.6M0.04%-246,15213F-HRTimeline
Value Aligned Research Advisors, LLC745,013$10.2M0.23%+111,42613F-HR/ATimeline
Invesco Ltd.in group Invesco Ltd.727,546$9.95M<0.01%-347,62513F-HRTimelineGroup
Clayton Partners LLC693,585$9.48M7.19%+32,00813F-HRTimeline
Jain Global LLC618,976$8.45M0.11%new13F-HRTimeline
MAPLELANE CAPITAL, LLCin group MAPLELANE CAPITAL, LLC608,500$8.31M0.4%-176,50013F-HRTimelineGroup
INTACT INVESTMENT MANAGEMENT INC.in group INTACT INVESTMENT MANAGEMENT …579,950$7.92M0.24%-112,60013F-HRTimelineGroup
Swiss National Bank544,500$7.44M<0.01%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC508,342$6.95M0.01%-222,24213F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.433,116$5.91M<0.01%-234,08913F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…404,956$5.54M0.01%+228,38113F-HRTimelineGroup
Waratah Capital Advisors Ltd.334,994$4.58M0.31%-142,97813F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.315,051$4.31M<0.01%+1,55113F-HRTimelineGroup
VAN LANSCHOT KEMPEN INVESTMENT MANAGEME…224,420$4.27M0.04%+106,10413F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc308,024$4.21M<0.01%-1,11513F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …301,577$4.12M<0.01%+89,93113F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.291,416$3.98M<0.01%+234,98713F-HRTimeline
Trexquant Investment LP274,009$3.75M0.04%-45,86413F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC272,785$3.73M<0.01%-234,09713F-HR/ATimelineGroup
Cinctive Capital Management LP264,361$3.61M0.18%+173,28113F-HRTimeline
AYAL Capital Advisors Ltd256,200$3.5M2.02%new13F-HRTimeline
CIBC Asset Management Inc252,089$3.44M0.01%+9813F-HRTimeline
Tacita Capital Inc219,313$3M1.81%013F-HRTimeline
SCOTIA CAPITAL INC.219,933$2.99M0.01%-97,29813F-HRTimeline
Nuveen, LLCin group TIAA212,983$2.91M<0.01%013F-HRTimelineGroup
SONA ASSET MANAGEMENT (US) LLCin group SONA ASSET MANAGEMENT (US) LLC200,000$2.73M0.11%013F-HRTimelineGroup
Caption Management, LLC194,172$2.65M0.15%+101,50813F-HRTimeline
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…192,590$2.63M0.02%+160,41913F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC186,700$2.55M<0.01%new13F-HRTimelineGroup
PINNBROOK CAPITAL MANAGEMENT LP172,238$2.35M0.44%new13F-HRTimeline
Lombard Odier Asset Management (USA) Co…171,000$2.34M0.53%new13F-HRTimeline
Heronetta Management, L.P.122,000$2.32M1.27%+37,00013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC164,333$2.26M<0.01%+11,51713F-HRTimelineGroup
Cardinal Point Capital Management ULC164,585$2.25M0.16%-8,40013F-HRTimeline
Blackstone Inc.in group Blackstone Inc.162,266$2.22M0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
BRITISH COLUMBIA INVESTMENT MANAGEMENT …153,763$2.1M0.01%-4,53213F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding147,489$2.02M+108,173Timeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…142,620$1.95M0.03%+22,62013F-HRTimelineGroup
SIG North Trading, ULC115,523$1.58M0.24%-15,90113F-HRTimeline
ARDSLEY ADVISORY PARTNERS LP115,000$1.57M0.24%+10,00013F-HRTimeline
Mitsubishi UFJ Trust & Banking Corpin group Mitsubishi UFJ Trust & Bankin…113,500$1.55M<0.01%-94,00013F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…108,175$1.48M<0.01%+30713F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson104,287$1.43M<0.01%013F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO100,317$1.37M<0.01%+83,41413F-HR/ATimelineGroup
Bridgewater Associates, LP91,346$1.25M<0.01%-22,46913F-HRTimeline
Mariner, LLCin group Mariner, LLC90,508$1.24M<0.01%+6,00513F-HRTimelineGroup
WEXFORD CAPITAL LP80,867$1.1M0.33%+34,31813F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd79,137$1.08M0.06%+56,74413F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…77,869$1.06M<0.01%+5,18113F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC76,757$1.05M<0.01%+11,98213F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC76,424$1.04M0.01%-3,98513F-HRTimelineGroup
Verition Fund Management LLC75,530$1.03M0.01%-66,20913F-HRTimeline
CenterBook Partners LP75,372$1.03M0.05%-700,08213F-HRTimeline
Guardian Partners Inc.73,008$1.01M0.09%-1,94713F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC68,300$932K<0.01%013F-HRTimelineGroup
DRW Securities, LLC46,800$890K0.05%new13F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC62,471$854K<0.01%+4,11013F-HRTimelineGroup
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP58,234$796K<0.01%-15,58813F-HRTimelineGroup
Rathbones Group PLC57,012$779K<0.01%013F-HRTimeline
TD Waterhouse Canada Inc.55,412$764K<0.01%-15,14213F-HRTimeline
CITIGROUP INCin group CITIGROUP INC55,443$757K<0.01%-4,43913F-HRTimelineGroup
Creative Planningin group Creative Planning52,339$715K<0.01%+1,00313F-HRTimelineGroup
BTG Pactual Asset Management US LLCin group BTG Pactual Asset Management …51,478$703K0.08%-32,30313F-HRTimelineGroup
Quantbot Technologies LP49,751$680K0.02%-7,16913F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…48,033$656K<0.01%+313F-HRTimelineGroup
Claret Asset Management Corp47,602$650K0.08%-513F-HRTimeline
Clear Harbor Asset Management, LLC47,400$648K0.05%-6,90013F-HR/ATimeline
Hennion & Walsh Asset Management, Inc.46,739$639K0.02%+10,46413F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management45,209$618K<0.01%-250,13813F-HRTimelineGroup
Qube Research & Technologies Ltd41,251$564K<0.01%-165,56213F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC40,697$555K<0.01%-63,80513F-HRTimelineGroup
Hartree Partners, LP40,000$546K0.19%new13F-HRTimeline
Private Advisor Group, LLC38,850$531K<0.01%+12,27513F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co34,051$464K<0.01%+1,82713F-HRTimelineGroup
DekaBank Deutsche Girozentrale34,081$462K<0.01%013F-HRTimeline
SUMMIT SECURITIES GROUP LLC33,200$454K0.15%+12,20013F-HRTimeline
Gotham Asset Management, LLC31,758$434K<0.01%+413F-HRTimeline
SIGNATUREFD, LLC25,732$352K0.01%+10713F-HRTimeline
Metis Global Partners, LLC25,626$350K0.01%-9,08013F-HRTimeline
Centiva Capital, LP25,148$344K0.03%-36,86013F-HRTimeline
Northwest & Ethical Investments L.P.23,342$319K0.01%-61013F-HRTimeline
State of Wyoming20,236$277K0.03%+14,13313F-HRTimeline
IMC-Chicago, LLC19,705$269K<0.01%new13F-HRTimeline
Orion Porfolio Solutions, LLC18,981$259K<0.01%+4,21613F-HRTimeline
WOLVERINE TRADING, LLC18,755$256K0.01%+3,82113F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources18,160$248K<0.01%-22,18013F-HRTimelineGroup
Dynamic Technology Lab Private Ltd17,965$246K0.04%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC17,276$236K0.01%013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\16,794$230K<0.01%+2,06113F-HRTimelineGroup
Cetera Investment Advisers15,657$214K<0.01%new13F-HRTimeline
HRT FINANCIAL LP15,566$212K<0.01%new13F-HRTimeline
First Eagle Investment Management, LLCin group First Eagle Investment Manage…15,474$211K<0.01%+12413F-HRTimelineGroup
Savant Capital, LLCin group Savant Capital, LLC14,950$204K<0.01%+3,20513F-HR/ATimelineGroup
TUDOR INVESTMENT CORP ET AL13,843$189K<0.01%new13F-HR/ATimeline
Allianz Asset Management GmbHin group Allianz SE13,286$182K<0.01%-381,14713F-HRTimelineGroup
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…12,897$176K<0.01%new13F-HRTimelineGroup
OMERS ADMINISTRATION Corp12,700$174K<0.01%new13F-HRTimeline
Ballentine Partners, LLC12,461$170K<0.01%013F-HRTimeline
SAGE RHINO CAPITAL LLC10,196$139K0.03%new13F-HRTimeline
TOBAM5,250$100K0.04%-2,72913F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…5,201$71.2K<0.01%-50,82513F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…4,190$57.3K<0.01%+3,85013F-HRTimelineGroup
SHELL ASSET MANAGEMENT CO4,200$57K0.01%-12,08413F-HRTimeline
LANARK FINANCIAL, INC.2,919$39.9K<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…2,188$29.9K<0.01%+44113F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.2,180$28.9K<0.01%+4113F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\1,483$20.3K<0.01%013F-HRTimelineGroup
Quarry LP1,482$20.3K<0.01%new13F-HRTimeline
Aviso Financial Inc.1,247$17K<0.01%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN1,232$16.8K<0.01%+9913F-HRTimelineGroup
Itau Unibanco Holding S.A.in group Itau Unibanco Holding S.A.1,227$16.8K<0.01%new13F-HRTimelineGroup
Westside Investment Management, Inc.962$13.3K<0.01%013F-HRTimeline
Allworth Financial LP614$8.39K<0.01%013F-HRTimeline
WealthCollab, LLC480$6.56K<0.01%013F-HRTimeline
Parallel Advisors, LLC359$4.91K<0.01%013F-HRTimeline
Blue Trust, Inc.336$4.59K<0.01%013F-HRTimeline
Larson Financial Group LLC254$3.47K<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.180$2.46K<0.01%-1,22713F-HRTimelineGroup
Pacifica Partners Inc.175$2.41K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP100$1.36K<0.01%013F-HRTimelineGroup
Bell Investment Advisors, Inc80$1.09K<0.01%+4413F-HRTimeline
NewEdge Advisors, LLC77$1.05K<0.01%+113F-HRTimeline
RHUMBLINE ADVISERS15$205<0.01%013F-HRTimeline
SBI Securities Co., Ltd.13$178<0.01%+1013F-HRTimeline