Company · Ownership research

TRANSALTA CORP TAC

CIK 0001144800 · CUSIP 89346D107

Insider tradingInitial holdingsInstitutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 89346D107 (TAC), not CUSIP 89346D907 (TAC), CUSIP 89346D957 (TAC), CUSIP 89346D958 (TAC), and does not merge CUSIPs.

This page lists the top 20 of 172 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BROOKFIELD Corp /ON/ CIK 1001085 · View history	$340.62M 26,947,535 shares	0.42%	+5.21K(0.00%)Added	SEC filing ↗ Feb 13, 2026	▾
02	ROYAL BANK OF CANADA CIK 1000275 · View history	$325.53M 25,754,198 shares	0.06%	-8.97M(-25.80%)Reduced	SEC filing ↗ Feb 17, 2026	▾
03	FMR LLC CIK 315066 · View history	$299.84M 23,706,888 shares	0.02%	+1.09M(+4.80%)Added	SEC filing ↗ Feb 17, 2026	▾
04	Rubric Capital Management LP CIK 1687509 · View history	$224.76M 17,781,325 shares	2.69%	+1.83M(+11.50%)Added	SEC filing ↗ Feb 13, 2026	▾
05	BANK OF MONTREAL /CAN/ CIK 927971 · View history	$168.16M 13,295,335 shares	0.07%	+2.87M(+27.50%)Added	SEC filing ↗ Feb 12, 2026	▾
06	VANGUARD GROUP INC CIK 102909 · View history	$140.69M 11,123,833 shares	0.00%	+174.45K(+1.60%)Added	SEC filing ↗ Jan 29, 2026	▾
07	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$139.31M 11,021,749 shares	0.01%	+3.79M(+52.40%)Added	SEC filing ↗ Feb 17, 2026	▾
08	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$107.23M 8,475,864 shares	0.08%	-4.64M(-35.40%)Reduced	SEC filing ↗ Feb 17, 2026	▾
09	OAKTREE CAPITAL MANAGEMENT LP CIK 949509 · View history	$81.25M 6,415,253 shares	1.32%	0(0.00%)Unchanged	SEC filing ↗ Feb 17, 2026	▾
10	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$76.67M 6,061,717 shares	0.04%	+3.06M(+101.60%)Added	SEC filing ↗ Feb 13, 2026	▾
11	GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history	$61.90M 4,897,323 shares	0.01%	-1.82M(-27.10%)Reduced	SEC filing ↗ Mar 25, 2026	▾
12	Arvin Capital Management LP CIK 1961738 · View history	$48.27M 3,819,100 shares	10.40%	+712.10K(+22.90%)Added	SEC filing ↗ Feb 13, 2026	▾
13	MACKENZIE FINANCIAL CORP CIK 919859 · View history	$45.66M 3,613,617 shares	0.05%	-848.71K(-19.00%)Reduced	SEC filing ↗ Feb 18, 2026	▾
14	NORGES BANK CIK 1374170 · View history	$45.30M 3,581,371 shares	0.00%	+1.62M(+83.00%)Added	SEC filing ↗ Feb 10, 2026	▾
15	MORGAN STANLEY CIK 895421 · Amended · View history	$44.21M 3,497,528 shares	0.00%	-4.59M(-56.80%)Reduced	SEC filing ↗ May 27, 2026	▾
16	UBS Group AG CIK 1610520 · View history	$38.65M 3,057,715 shares	0.01%	-1.15M(-27.30%)Reduced	SEC filing ↗ Jan 29, 2026	▾
17	Sculptor Capital LP CIK 1054587 · View history	$37.96M 3,000,000 shares	0.45%	+3.00MNew	SEC filing ↗ Feb 13, 2026	▾
18	TORONTO DOMINION BANK CIK 947263 · View history	$32.50M 2,569,246 shares	0.06%	-209.27K(-7.50%)Reduced	SEC filing ↗ Feb 17, 2026	▾
19	Rokos Capital Management LLP CIK 1666335 · View history	$28.99M 2,293,069 shares	0.43%	-467.40K(-16.90%)Reduced	SEC filing ↗ Feb 13, 2026	▾
20	Man Group plc CIK 1637460 · View history	$26.52M 2,098,053 shares	0.05%	+1.29M(+159.90%)Added	SEC filing ↗ Feb 17, 2026	▾

Showing 20 / 172 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

172

Cancelled or null records excluded

Disclosed shares

218,829,795

Not deduplicated across managers

Disclosed value

$2.77B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

TRANSALTA CORP · Q4 2025

Explore all 172 reporting institutions.

This page includes 20 of 172 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.