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Disclosery

TAC TRANSALTA CORP

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COM (common), issuer CIK 1144800

171 managers (172 13F filers) reported a position in TAC shares at 2025-12-31, 218,829,795 shares in all. 34 filers opened a position and 25 filers sold out during the quarter.

Managers
171
13F filers
172
New
34
Added
51
Reduced
58
Sold out
25
Shares held by filers
218,829,795

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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
Brookfield Corp /ON/in group Brookfield Corp /ON/26,947,535$341M0.42%+5,21313F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA25,754,198$326M0.06%-8,968,73313F-HRTimelineGroup
FMR LLCin group FMR LLC23,706,888$300M0.02%+1,085,86813F-HRTimelineGroup
Rubric Capital Management LP17,781,325$225M2.69%+1,832,87413F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/13,295,335$168M0.07%+2,870,02613F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding11,164,379$141M+176,263Timeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/11,021,749$139M0.01%+3,788,61613F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC8,475,864$107M0.08%-4,639,82513F-HRTimelineGroup
OAKTREE CAPITAL MANAGEMENT LPin group Oaktree Capital Holdings, LLC6,415,253$81.2M1.32%013F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC6,061,717$76.7M0.04%+3,055,42113F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC4,897,323$61.9M0.01%-1,819,46613F-HR/ATimelineGroup
Arvin Capital Management LP3,819,100$48.3M10.4%+712,10013F-HRTimeline
MACKENZIE FINANCIAL CORP3,613,617$45.7M0.05%-848,71113F-HRTimeline
NORGES BANK3,581,371$45.3M<0.01%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY3,497,528$44.2M<0.01%-4,594,20113F-HR/ATimelineGroup
UBS Group AGin group UBS Group AG3,057,715$38.6M0.01%-1,149,33713F-HRTimelineGroup
Sculptor Capital LPin group Sculptor Capital LP3,000,000$38M0.45%new13F-HRTimelineGroup
TORONTO DOMINION BANKin group TORONTO DOMINION BANK2,569,246$32.5M0.06%-209,26813F-HRTimelineGroup
Rokos Capital Management LLPin group Rokos Capital Management LLP2,293,069$29M0.43%-467,39813F-HRTimelineGroup
Man Group plcin group Man Group plc2,098,053$26.5M0.05%+1,290,85413F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC2,027,408$25.6M0.02%+1,056,08813F-HRTimelineGroup
Artemis Investment Management LLP1,818,379$23M0.28%+463,26613F-HRTimeline
Potrero Capital Research LLC1,724,544$21.8M7.34%-794,40013F-HRTimeline
CIBC WORLD MARKET INC.1,574,000$19.9M0.04%+91,10113F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,537,875$19.4M<0.01%+97,14313F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/1,415,276$17.9M0.02%-149,66013F-HRTimelineGroup
Yaupon Capital Management LP1,290,906$16.3M0.8%-103,18113F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC1,210,995$15.3M0.02%+180,99513F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,183,363$15M<0.01%-52,48513F-HRTimelineGroup
BANK OF NOVA SCOTIAin group BANK OF NOVA SCOTIA1,081,198$13.7M0.02%-152,51713F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.996,761$12.6M0.02%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS993,179$12.6M0.01%-508,83413F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…979,699$12.4M0.03%+12,60013F-HRTimeline
TD Asset Management Inc909,411$11.5M0.01%+31,66413F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co894,124$11.3M<0.01%-4,13413F-HRTimelineGroup
WESTERLY CAPITAL MANAGEMENT, LLC805,000$10.2M3.06%-95,00013F-HRTimeline
FIRST MANHATTAN CO. LLC.793,222$10.1M0.03%-62,82513F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…700,000$8.85M0.01%new13F-HRTimeline
Clayton Partners LLC629,572$7.96M5.75%-64,01313F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO595,012$7.52M<0.01%+494,69513F-HRTimelineGroup
Swiss National Bank557,700$7.07M<0.01%+13,20013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC558,934$7.06M0.01%+50,59213F-HRTimelineGroup
Federation des caisses Desjardins du Qu…535,816$6.77M0.03%-242,12613F-HRTimeline
Invesco Ltd.in group Invesco Ltd.534,715$6.76M<0.01%-192,83113F-HRTimelineGroup
Purpose Unlimited Inc.in group Purpose Unlimited Inc.509,253$6.44M0.29%13F-HRTimelineGroup
INTACT INVESTMENT MANAGEMENT INC.in group INTACT INVESTMENT MANAGEMENT …428,800$5.42M0.16%-151,15013F-HRTimelineGroup
Qube Research & Technologies Ltd426,412$5.39M0.01%+385,16113F-HRTimeline
CITIGROUP INCin group CITIGROUP INC404,730$5.13M<0.01%+349,28713F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL404,429$5.11M0.03%+390,58613F-HRTimeline
BlueCrest Capital Management Ltd393,880$4.98M0.19%new13F-HRTimeline
CenterBook Partners LP377,942$4.78M0.23%+302,57013F-HRTimeline
VAN LANSCHOT KEMPEN INVESTMENT MANAGEME…244,856$4.25M0.04%+20,43613F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc288,863$3.66M<0.01%-19,16113F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …285,840$3.62M<0.01%-15,73713F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…275,957$3.49M<0.01%-128,99913F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.274,814$3.47M<0.01%-40,23713F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd270,754$3.42M0.08%new13F-HRTimeline
CIBC Asset Management Inc246,087$3.11M0.01%-6,00213F-HRTimeline
SCOTIA CAPITAL INC.246,564$3.11M0.01%+26,63113F-HRTimeline
Verition Fund Management LLC227,121$2.87M0.02%+151,59113F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.220,216$2.79M<0.01%-212,90013F-HRTimelineGroup
Nuveen, LLCin group TIAA212,983$2.7M<0.01%013F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…211,562$2.67M0.02%new13F-HRTimelineGroup
Tacita Capital Inc208,307$2.64M1.53%-11,00613F-HRTimeline
SONA ASSET MANAGEMENT (US) LLCin group SONA ASSET MANAGEMENT (US) LLC200,000$2.53M0.08%013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC189,615$2.45M<0.01%+25,28213F-HRTimelineGroup
DZ BANK AG Deutsche Zentral Genossensch…in group DZ BANK AG Deutsche Zentral G…187,804$2.37M<0.01%new13F-HRTimelineGroup
BTG Pactual Asset Management US LLCin group BTG Pactual Asset Management …186,980$2.36M0.26%+135,50213F-HRTimelineGroup
ARDSLEY ADVISORY PARTNERS LP180,000$2.28M0.29%+65,00013F-HRTimeline
Cardinal Point Capital Management ULC168,411$2.13M0.14%+3,82613F-HRTimeline
Heronetta Management, L.P.122,000$2.12M1.22%013F-HRTimeline
SIG North Trading, ULC149,915$1.89M0.33%+34,39213F-HRTimeline
Massar Capital Management, LP140,738$1.78M0.35%new13F-HRTimeline
BRITISH COLUMBIA INVESTMENT MANAGEMENT …140,168$1.77M0.01%-13,59513F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson104,287$1.32M<0.01%013F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC102,819$1.3M<0.01%+12,31113F-HRTimelineGroup
Capital Innovations LLC99,595$1.26M0.36%13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…92,264$1.17M<0.01%-15,91113F-HRTimeline
Campbell & CO Investment Adviser LLC88,622$1.12M0.05%new13F-HRTimeline
Schonfeld Strategic Advisors LLC81,011$1.02M0.01%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…79,801$1.01M<0.01%+1,93213F-HRTimeline
Lombard Odier Asset Management (USA) Co…74,625$944K0.38%-96,37513F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC71,703$906K0.01%-4,72113F-HRTimelineGroup
Guardian Partners Inc.in group GUARDIAN CAPITAL LP72,055$903K0.07%-95313F-HRTimelineGroup
Trexquant Investment LP69,002$872K0.01%-205,00713F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC68,300$864K<0.01%013F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC65,184$824K<0.01%+2,71313F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources57,254$724K<0.01%+39,09413F-HRTimelineGroup
Rathbones Group PLC57,012$722K<0.01%013F-HR/ATimeline
Bridgewater Associates, LP56,152$711K<0.01%-35,19413F-HRTimeline
Creative Planningin group Creative Planning51,193$647K<0.01%-1,14613F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.51,078$646K0.1%new13F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…48,926$620K<0.01%+89313F-HRTimelineGroup
TD Waterhouse Canada Inc.48,141$608K<0.01%-7,27113F-HRTimeline
Clear Harbor Asset Management, LLC47,900$605K0.04%+50013F-HRTimeline
Claret Asset Management Corp47,392$599K0.07%-21013F-HRTimeline
Hennion & Walsh Asset Management, Inc.45,894$580K0.02%-84513F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP44,848$567K<0.01%-13,38613F-HRTimelineGroup
Aigen Investment Management, LP31,298$534K0.12%new13F-HRTimeline
Mitsubishi UFJ Trust & Banking Corpin group Mitsubishi UFJ Trust & Bankin…41,300$516K<0.01%-72,20013F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.40,551$513K<0.01%-250,86513F-HRTimeline
Private Advisor Group, LLC36,350$459K<0.01%-2,50013F-HRTimeline
PharVision Advisers, LLC35,899$454K0.23%new13F-HRTimeline
Engineers Gate Manager LP34,849$440K0.01%new13F-HRTimeline
TWINBEECH CAPITAL LP33,224$420K0.03%new13F-HRTimeline
Dynamic Technology Lab Private Ltd32,810$415K0.09%+14,84513F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd32,786$414K0.01%-46,35113F-HRTimelineGroup
Investment Management Corp of Ontario32,401$410K0.01%new13F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co32,304$408K<0.01%-1,74713F-HRTimelineGroup
Gotham Asset Management, LLC31,756$401K<0.01%-213F-HRTimeline
Northwest & Ethical Investments L.P.30,172$382K0.01%+6,83013F-HR/ATimeline
State of Wyoming27,057$342K0.04%+6,82113F-HRTimeline
Orion Porfolio Solutions, LLC26,133$330K<0.01%+7,15213F-HRTimeline
SIGNATUREFD, LLC25,680$325K<0.01%-5213F-HRTimeline
Metis Global Partners, LLC25,626$324K0.01%013F-HRTimeline
AYAL Capital Advisors Ltd25,600$324K0.18%-230,60013F-HRTimeline
Entropy Technologies, LP23,977$303K0.02%new13F-HRTimeline
Quantbot Technologies LP23,841$301K0.01%-25,91013F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…22,862$290K<0.01%+17,66113F-HRTimelineGroup
DekaBank Deutsche Girozentrale34,081$244K<0.01%013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC18,348$232K<0.01%-58,40913F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC17,276$218K0.01%013F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE17,008$215K<0.01%+3,72213F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\16,794$212K<0.01%013F-HRTimelineGroup
Savant Capital, LLCin group Savant Capital, LLC16,568$209K<0.01%+1,61813F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…15,474$196K<0.01%013F-HRTimelineGroup
Voleon Capital Management LP15,391$195K<0.01%new13F-HRTimeline
Public Sector Pension Investment Board15,360$194K<0.01%new13F-HRTimeline
GROUP ONE TRADING LLC14,217$180K0.01%new13F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…12,897$163K<0.01%013F-HRTimelineGroup
DLD Asset Management, LP12,000$152K0.02%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding11,699$148K-135,790Timeline
Virtu Financial LLCin group Virtu Financial LLC11,626$147K0.01%new13F-HRTimelineGroup
Ballentine Partners, LLC11,497$145K<0.01%-96413F-HRTimeline
Ritter Alpha, LP10,389$131K5.6%new13F-HRTimeline
SAGE RHINO CAPITAL LLC10,196$129K0.02%013F-HRTimeline
Warren Street Wealth Advisors, LLC10,171$129K0.04%new13F-HRTimeline
SIMPLEX TRADING, LLC9,547$121K<0.01%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC8,519$108K<0.01%-264,26613F-HRTimelineGroup
Caitong International Asset Management …6,900$87.2K0.02%new13F-HR/ATimeline
TOBAM4,545$79K0.02%-70513F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Quarry LP5,424$68.6K0.01%+3,94213F-HRTimeline
FNY Investment Advisers, LLC4,000$50K0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…3,000$37.9K<0.01%+81213F-HRTimelineGroup
LANARK FINANCIAL, INC.2,919$36.9K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.2,367$29.9K<0.01%+18713F-HRTimelineGroup
Blue Trust, Inc.1,843$23.3K<0.01%+1,50713F-HRTimeline
Costello Asset Management, INC1,800$22.8K0.01%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP1,632$20.6K<0.01%+1,53213F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\1,483$18.7K<0.01%013F-HRTimelineGroup
Basecamp Wealth Advisors LLC1,404$17.7K<0.01%13F-HRTimeline
Aviso Financial Inc.1,247$15.8K<0.01%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN1,232$15.6K<0.01%013F-HRTimelineGroup
Westside Investment Management, Inc.962$12.5K<0.01%013F-HRTimeline
Itau Unibanco Holding S.A.in group Itau Unibanco Holding S.A.989$12.5K<0.01%-23813F-HRTimelineGroup
Allworth Financial LP614$7.76K<0.01%013F-HRTimeline
MCGUIRE CAPITAL ADVISORS INC579$7.32K<0.01%13F-HRTimeline
WealthCollab, LLC480$6.07K<0.01%013F-HRTimeline
Smartleaf Asset Management LLC466$5.9K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…440$5.56K<0.01%-3,75013F-HRTimelineGroup
Larson Financial Group LLC362$4.58K<0.01%+10813F-HRTimeline
Parallel Advisors, LLC359$4.54K<0.01%013F-HRTimeline
HARBOUR INVESTMENTS, INC.192$2.43K<0.01%new13F-HRTimeline
Pacifica Partners Inc.175$2.26K<0.01%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…149$1.88K<0.01%new13F-HR/ATimelineGroup
CoreCap Advisors, LLC105$1.33K<0.01%new13F-HRTimeline
NewEdge Advisors, LLC77$971<0.01%013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.66$834<0.01%-11413F-HRTimelineGroup
Farther Finance Advisors, LLC19$240<0.01%new13F-HRTimeline
RHUMBLINE ADVISERS15$189<0.01%013F-HRTimeline
SBI Securities Co., Ltd.3$38<0.01%-1013F-HRTimeline