Ardsley Advisory Partners’s TransAlta TAC Stock Holding History

Ardsley Advisory Partners’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
2026 Q2	$4.77M	Buy	345,000 +70,000	+25%	+$925K	0.5%	63
2026 Q1	$3.62M	Buy	275,000 +95,000	+53%	+$1.22M	0.46%	67
2025 Q4	$2.28M	Buy	180,000 +65,000	+57%	+$970K	0.25%	95
2025 Q3	$1.57M	Buy	115,000 +10,000	+10%	+$123K	0.19%	98
2025 Q2	$1.13M	Sell	105,000 -25,000	-19%	-$238K	0.15%	108
2025 Q1	$1.21M	Sell	130,000 -545,000	-81%	-$6.04M	0.23%	98
2024 Q4	$9.55M	Sell	675,000 -225,000	-25%	-$2.57M	1.51%	17
2024 Q3	$9.33M	Buy	+900,000	New	+$7.49M	1.53%	20

Other funds holding TAC

Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return

Brookfield Corp Toronto, Ontario, Canada $77B AUM 10.33% 1-Year Est. Return

Bank of Montreal Toronto, Ontario, Canada $304B AUM 35.64% 1-Year Est. Return

RCMNY

Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return

Toronto Dominion Bank Toronto, Ontario, Ontario, Canada $86.4B AUM 59.51% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Ardsley Advisory Partners's TAC Position: Q2 2026 in Review

Ardsley Advisory Partners increased its TransAlta (TAC) stake by 25% in Q2 2026, buying an estimated $925K and bringing the position to 345,000 shares worth $4.77M. The position accounts for 0.5% of the portfolio, ranked #63.

Ardsley Advisory Partners first reported a position in TAC in Q3 2024 and has held it in 8 quarters since. The position peaked at $9.55M in Q4 2024. 178 funds tracked by Wall St. Rank hold TAC as of Q2 2026.

Ardsley Advisory Partners held 345,000 shares of TransAlta worth $4.77M as of Q2 2026.
Ardsley Advisory Partners bought 70,000 TransAlta shares in Q2 2026, an estimated $925K.
TransAlta made up 0.5% of Ardsley Advisory Partners's portfolio in Q2 2026, its #63 holding.
Ardsley Advisory Partners first reported a position in TransAlta in Q3 2024 and has held it in 8 quarters since.
Ardsley Advisory Partners's TransAlta position peaked at $9.55M in Q4 2024.
178 funds tracked by Wall St. Rank held TransAlta as of Q2 2026.

Based on Ardsley Advisory Partners's 13F filing for Q2 2026, filed 13 Jul 2026.