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Maplelane Capital’s TransAlta TAC Stock Holding History

Maplelane Capital’s Portfolio TAC Stock Details TAC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-1,600,000
Closed -$21.5M – 109
2025
Q1 		$21.5M Buy
1,600,000
+881,775
+123% +$9.77M 0.89% 36
2024
Q4 		$10.2M Buy
+718,225
New +$8.2M 0.29% 68

Other funds holding TAC

BC
Brookfield Corp Toronto, Ontario, Canada $74.2B AUM 0.68% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return
Bank of Montreal
Bank of Montreal Toronto, Ontario, Canada $269B AUM 31.4% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
OCM
Oaktree Capital Management Los Angeles, California $6.56B AUM 42.97% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Maplelane Capital's TAC Position: Q4 2025 in Review

Maplelane Capital sold out of TransAlta (TAC) in Q4 2025, closing a stake of 608,500 shares — an estimated $8.31M sold.

Maplelane Capital first reported a position in TAC in Q3 2024 and held it in 5 quarters. The position peaked at $27M in Q1 2025. 173 funds tracked by Wall St. Rank hold TAC as of Q4 2025.

  • Maplelane Capital reported no remaining TransAlta position as of Q4 2025 after selling out during the quarter.
  • Maplelane Capital sold 608,500 TransAlta shares in Q4 2025, an estimated $8.31M.
  • Maplelane Capital first reported a position in TransAlta in Q3 2024 and held it in 5 quarters.
  • Maplelane Capital's TransAlta position peaked at $27M in Q1 2025.
  • 173 funds tracked by Wall St. Rank held TransAlta as of Q4 2025.

Based on Maplelane Capital's 13F filing for Q4 2025, filed 13 Feb 2026.