Optiver Holding’s TransAlta TAC Stock Holding History

Optiver Holding’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 Q1	–	Sell	-66	Closed	-$834	–	2714
2025 Q4	$834	Sell	66 -114	-63%	-$1.7K	﹤0.01%	2235
2025 Q3	$2.46K	Sell	180 -1,227	-87%	-$15.1K	﹤0.01%	2299
2025 Q2	$15.2K	Buy	1,407 +1,183	+528%	+$11.3K	﹤0.01%	901
2025 Q1	$2.09K	Buy	+224	New	+$2.48K	﹤0.01%	1235
2024 Q2	–	Sell	-2,145	Closed	-$13.8K	–	1000
2024 Q1	$13.8K	Buy	+2,145	New	+$15.2K	﹤0.01%	612
2023 Q3	–	Sell	-348	Closed	-$3.26K	–	609
2023 Q2	$3.26K	Buy	348 +265	+319%	+$2.49K	﹤0.01%	437
2023 Q1	$726	Buy	+83	New	+$731	﹤0.01%	499
2022 Q2	–	Sell	-3,180	Closed	-$33K	–	534
2022 Q1	$33K	Buy	3,180 +1,711	+116%	+$17.7K	﹤0.01%	336
2021 Q4	$16K	Hold	1,469	–	–	﹤0.01%	628
2021 Q3	$16K	Buy	+1,469	New	+$14.7K	﹤0.01%	504

Other funds holding TAC

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

Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 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

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

OCM

Oaktree Capital Management Los Angeles, California $7.21B AUM 45.97% 1-Year Est. Return

Optiver Holding's TAC Position: Q1 2026 in Review

Optiver Holding sold out of TransAlta (TAC) in Q1 2026, closing a stake of 66 shares — an estimated $834 sold.

Optiver Holding first reported a position in TAC in Q3 2021 and held it in 10 quarters. The position peaked at $33K in Q1 2022. 178 funds tracked by Wall St. Rank hold TAC as of Q1 2026.

Optiver Holding reported no remaining TransAlta position as of Q1 2026 after selling out during the quarter.
Optiver Holding sold 66 TransAlta shares in Q1 2026, an estimated $834.
Optiver Holding first reported a position in TransAlta in Q3 2021 and held it in 10 quarters.
Optiver Holding's TransAlta position peaked at $33K in Q1 2022.
178 funds tracked by Wall St. Rank held TransAlta as of Q1 2026.

Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.