Transalta Corp

TAC

Exchange: NYSE
Industry: Electric Services
SEC CIK: 0001144800

SEC filings (opens in a new tab)

No open-market purchases or sales by Transalta Corp insiders were filed in the last 90 days; 176 institutions reported holding it in 13F filings for Q2 2026, worth $3.31B in total; Oaktree Capital is the only superinvestor holding it.

Other share classesTACPF TRNTF TSLTF

Q2 2025 vs. Q1 2025

How the institutions holding Transalta Corp changed between Q1 2025 and Q2 2025.

All holders in Q2 2025 All holders in Q1 2025

13F holders of TAC: Q1 2025 compared with Q2 2025
Measure	Q1 2025	Of which not filed for Q2 2025	Q2 2025	Change
Holders	161	1	168	+8
Shares	218.5M	2.90K	222.9M	+4.43M (+2.0%)
Value	$2.04B	$27.1K	$2.41B	+$363.6M (+17.8%)

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (30)

Institutions that held Transalta Corp at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to TAC in Q2 2025
Institution	Shares	Value	% of portfolio
CenterBook Partners LP	775,454	$8.37M	0.46%
Westerly Capital Management, LLC	767,500	$8.28M	3.51%
Value Aligned Research Advisors, LLC	633,587	$6.84M	0.31%
Kempen Capital Management N.V.	118,316	$1.74M	0.02%
Verition Fund Management LLC	141,739	$1.53M	0.01%
Bridgewater Associates, LP	113,815	$1.23M	0.00%
HSBC Holdings PLC	104,502	$1.13M	0.00%
Y-Intercept (Hong Kong) Ltd	96,266	$1.04M	0.03%
Cinctive Capital Management LP	91,080	$982.1K	0.05%
BTG Pactual Asset Management US LLC	83,781	$904.0K	0.12%
ExodusPoint Capital Management, LP	77,600	$837.0K	0.01%
Centiva Capital, LP	62,008	$669.1K	0.04%
Timelo Investment Management Inc.	60,000	$647.4K	2.24%
Polar Asset Management Partners Inc.	50,000	$539.1K	0.01%
Wexford Capital LP	46,549	$501.9K	0.14%
Capstone Investment Advisors, LLC	32,171	$347.1K	0.00%
AREX Capital Management, LP	25,000	$269.6K	0.53%
XTX Topco Ltd	22,393	$241.6K	0.01%
Schonfeld Strategic Advisors LLC	19,092	$206.0K	0.00%
Quadrature Capital Ltd	16,056	$173.2K	0.00%
Wolverine Trading, LLC	14,934	$159.6K	0.00%
Brinker Capital Investments, LLC	14,765	$159.3K	0.00%
Fox Run Management, L.L.C.	12,952	$139.8K	0.02%
Ballentine Partners, LLC	12,461	$134.5K	0.00%
Savant Capital, LLC	11,745	$126.7K	0.00%
Global Retirement Partners, LLC	1,042	$11.2K	0.00%
Westside Investment Management, Inc.	962	$10.3K	0.00%
MAI Capital Management	226	$2.44K	0.00%
Mid-American Wealth Advisory Group, Inc.	220	$2.37K	0.00%
Skopos Labs, Inc.	42	$454	0.00%

Sold out (22)

Institutions that held Transalta Corp at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of TAC in Q2 2025
Institution	Shares, Q1 2025	Value, Q1 2025
Arrowstreet Capital, Limited Partnership	2,306,805	$21.5M
Valiant Capital Management, L.P.	960,092	$8.98M
Canada Pension Plan Investment Board	450,000	$4.20M
Man Group plc	284,987	$2.66M
Louisbourg Investments Inc.	267,100	$2.50M
Two Sigma Advisers, LP	127,600	$1.19M
Tudor Investment Corp Et Al	105,684	$988.1K
Aigen Investment Management, LP	62,823	$843.7K
Voloridge Investment Management, LLC	86,004	$804.1K
BNP Paribas Arbitrage, SA	60,402	$564.8K
Versor Investments LP	56,400	$526.4K
Dynamic Technology Lab Private Ltd	33,444	$313.0K
Lazard Asset Management LLC	17,996	$168.0K
Neuberger Berman Group LLC	15,609	$145.7K
CI Private Wealth, LLC	13,180	$123.2K
Sage Investment Counsel LLC	11,000	$102.8K
Jefferies Financial Group Inc.	10,000	$93.5K
Coldstream Capital Management Inc	527	$4.93K
UMA Financial Services, Inc.	107	$1.00K
Gold Investment Management Ltd.	106	$990
Farther Finance Advisors, LLC	31	$294
Hexagon Capital Partners LLC	22	$206

Not filed for Q2 2025 yet (1)

Institutions that held Transalta Corp at the end of Q1 2025 and haven't filed a 13F for Q2 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding TAC in Q1 2025 that haven't filed for Q2 2025
Institution	Shares, Q1 2025	Value, Q1 2025
Lindbrook Capital, LLC	2,899	$27.1K