TRANSALTA CORP (TAC) Stock Institutional Trading Activity


TRANSALTA CORP (TAC) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Oaktree Capital Management, First Eagle U.S. Value, Causeway Capital Management, and Fairfax Financial Holdings. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2020Renaissance Technologies LLCBuy180,8003,138,941$19,305
Q2 2020Renaissance Technologies LLCSell-544,1002,958,141$17,540
Q1 2020Renaissance Technologies LLCBuy573,9623,502,241$18,336
Q4 2019Fairfax Financial HoldingsBuy215,000215,000$1,530
Q4 2019Renaissance Technologies LLCBuy1,067,6382,928,279$20,957
Q3 2019Renaissance Technologies LLCBuy5,2001,860,641$12,098
Q2 2019Renaissance Technologies LLCBuy967,5411,855,441$12,081
Q1 2019Renaissance Technologies LLCBuy242,500887,900$6,517
Q4 2018Renaissance Technologies LLCSell-264,741645,400$2,659
Q3 2018Renaissance Technologies LLCBuy378,641910,141$5,122
Q1 2018Renaissance Technologies LLCBuy30,300531,500$2,897
Q4 2017Renaissance Technologies LLCBuy24,800501,200$2,982
Q3 2017Renaissance Technologies LLCBuy42,400476,400$2,787
Q2 2017Renaissance Technologies LLCBuy27,400434,000$2,778
Q1 2017Renaissance Technologies LLCSell-192,141406,600$2,379
Q4 2016Renaissance Technologies LLCBuy162,400598,741$3,298
Q3 2016Renaissance Technologies LLCBuy127,741436,341$1,941
Q2 2016Renaissance Technologies LLCBuy10,900308,600$1,611
Q1 2016Renaissance Technologies LLCSell-16,260297,700$1,384
Q4 2015Renaissance Technologies LLCBuy89,260313,960$1,111
Q3 2015Renaissance Technologies LLCBuy122,800224,700$1,045
Q2 2015Renaissance Technologies LLCSell-195,841101,900$790
Q1 2015Renaissance Technologies LLCSell-195,198297,741$2,766
Q4 2014Renaissance Technologies LLCSell-13,402492,939$4,465
Q3 2014Renaissance Technologies LLCBuy460,641506,341$5,312
Q2 2014Renaissance Technologies LLCBuy45,70045,700$561

Frequently asked questions about TAC activity

  • Which institutional owners are buying TAC?

    Institutional owners buying TAC include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in TAC activity?

    "Buy" means an investor increased their reported position in TAC compared to the prior reporting period. This reflects growing exposure to TRANSALTA CORP (TAC) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in TAC increasing?

    Institutional interest in TAC can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.