Renaissance Technologies (RenTech)'s TAC Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 1.43 M shares of TransAlta Corporation (TAC) worth $18.71 M, representing 0.03% of the portfolio. First purchased in 2014-Q2, this long-term strategic position has been held for 48 quarters.
Based on 13F filings since 2013, Renaissance Technologies (RenTech) has maintained a long-term strategic position in TAC, representing a significant commitment to this investment thesis. Largest addition occurred in Q4 2019, adding 1.07 M shares. Largest reduction occurred in Q1 2021, reducing 1.32 M shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s TransAlta Corporation (TAC) Holding Value Over Time
Track share changes against reported price movement
Quarterly TransAlta Corporation (TAC) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +217,200 | Add 17.94% | 1.43 M | $13.10 |
| Q4 2025 | +180,995 | Add 17.57% | 1.21 M | $12.64 |
| Q3 2025 | -357,400 | Reduce 25.76% | 1.03 M | $13.67 |
| Q2 2025 | -609,100 | Reduce 30.51% | 1.39 M | $10.79 |
| Q1 2025 | +303,200 | Add 17.91% | 2 M | $9.35 |
| Q4 2024 | -37,100 | Reduce 2.14% | 1.69 M | $14.15 |
| Q3 2024 | -40,111 | Reduce 2.27% | 1.73 M | $10.36 |
| Q2 2024 | -574,989 | Reduce 24.51% | 1.77 M | $7.08 |
| Q1 2024 | +335,159 | Add 16.67% | 2.35 M | $6.43 |
| Q4 2023 | -372,600 | Reduce 15.64% | 2.01 M | $8.31 |
| Q3 2023 | +334,470 | Add 16.33% | 2.38 M | $8.70 |
| Q2 2023 | +149,430 | Add 7.87% | 2.05 M | $0.01 |
| Q1 2023 | -296,500 | Reduce 13.50% | 1.9 M | $0.01 |
| Q4 2022 | -188,800 | Reduce 7.92% | 2.2 M | $0.01 |
| Q3 2022 | +35,841 | Add 1.53% | 2.38 M | $8.83 |
| Q2 2022 | -321,841 | Reduce 12.05% | 2.35 M | $11.40 |
| Q1 2022 | +399,141 | Add 17.57% | 2.67 M | $10.36 |
| Q4 2021 | -20,749 | Reduce 0.91% | 2.27 M | $11.12 |
| Q3 2021 | -1.09 M | Reduce 32.18% | 2.29 M | $10.56 |
| Q2 2021 | +1.05 M | Add 45.23% | 3.38 M | $9.97 |
| Q1 2021 | -1.32 M | Reduce 36.20% | 2.33 M | $9.46 |
| Q4 2020 | +508,500 | Add 16.20% | 3.65 M | $7.58 |
| Q3 2020 | +180,800 | Add 6.11% | 3.14 M | $6.15 |
| Q2 2020 | -544,100 | Reduce 15.54% | 2.96 M | $5.93 |
| Q1 2020 | +573,962 | Add 19.60% | 3.5 M | $5.24 |
| Q4 2019 | +1.07 M | Add 57.38% | 2.93 M | $7.16 |
| Q3 2019 | +5,200 | Add 0.28% | 1.86 M | $6.50 |
| Q2 2019 | +967,541 | Add 108.97% | 1.86 M | $6.51 |
| Q1 2019 | +242,500 | Add 37.57% | 887,900 | $7.34 |
| Q4 2018 | -264,741 | Reduce 29.09% | 645,400 | $4.12 |
| Q3 2018 | +260,800 | Add 40.16% | 910,141 | $5.63 |
| Q2 2018 | +117,841 | Add 22.17% | 649,341 | $5.00 |
| Q1 2018 | +30,300 | Add 6.05% | 531,500 | $5.45 |
| Q4 2017 | +24,800 | Add 5.21% | 501,200 | $5.95 |
| Q3 2017 | +42,400 | Add 9.77% | 476,400 | $5.85 |
| Q2 2017 | +27,400 | Add 6.74% | 434,000 | $6.40 |
| Q1 2017 | -192,141 | Reduce 32.09% | 406,600 | $5.85 |
| Q4 2016 | +162,400 | Add 37.22% | 598,741 | $5.51 |
| Q3 2016 | +127,741 | Add 41.39% | 436,341 | $4.45 |
| Q2 2016 | +10,900 | Add 3.66% | 308,600 | $5.22 |
| Q1 2016 | -16,260 | Reduce 5.18% | 297,700 | $4.65 |
| Q4 2015 | +89,260 | Add 39.72% | 313,960 | $3.54 |
| Q3 2015 | +122,800 | Add 120.51% | 224,700 | $4.65 |
| Q2 2015 | -195,841 | Reduce 65.78% | 101,900 | $7.75 |
| Q1 2015 | -195,198 | Reduce 39.60% | 297,741 | $9.29 |
| Q4 2014 | -13,402 | Reduce 2.65% | 492,939 | $9.06 |
| Q3 2014 | +460,641 | Add 1007.97% | 506,341 | $10.49 |
| Q2 2014 | +45,700 | New Buy | 45,700 | $12.28 |
Renaissance Technologies (RenTech)'s TransAlta Corporation Investment FAQs
Renaissance Technologies (RenTech) first purchased TransAlta Corporation (TAC) in Q2 2014, acquiring 45,700 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies (RenTech) has held TransAlta Corporation (TAC) for 48 quarters since Q2 2014.
Renaissance Technologies (RenTech)'s largest addition to TransAlta Corporation (TAC) was in Q4 2019, adding 2,928,279 shares worth $20.96 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 1,428,195 shares of TransAlta Corporation (TAC), valued at approximately $18.71 M.
As of the Q1 2026 filing, TransAlta Corporation (TAC) represents approximately 0.03% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in TransAlta Corporation (TAC) was 3,647,441 shares, as reported at the end of Q4 2020.