Bank of Montreal’s ATS Corp ATS Stock Holding History

Bank of Montreal’s Portfolio ATS Stock Details ATS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$87.8M	Buy	3,115,360 +92,667	+3%	+$2.79M	0.03%	386
2025 Q4	$83.3M	Buy	3,022,693 +1,880,040	+165%	+$50.2M	0.03%	407
2025 Q3	$29.9M	Buy	1,142,653 +44,229	+4%	+$1.27M	0.01%	651
2025 Q2	$35.1M	Buy	1,098,424 +52,857	+5%	+$1.45M	0.02%	546
2025 Q1	$26.1M	Buy	1,045,567 +83,156	+9%	+$2.32M	0.01%	618
2024 Q4	$29.3M	Buy	962,411 +275,365	+40%	+$8.36M	0.01%	610
2024 Q3	$20.4M	Sell	687,046 -31,603	-4%	-$914K	0.01%	772
2024 Q2	$24.2M	Buy	718,649 +142,908	+25%	+$4.61M	0.01%	696
2024 Q1	$20.7M	Sell	575,741 -75,110	-12%	-$2.98M	0.01%	729
2023 Q4	$28.3M	Sell	650,851 -32,536	-5%	-$1.26M	0.01%	662
2023 Q3	$30.3M	Buy	683,387 +7,411	+1%	+$327K	0.01%	579
2023 Q2	$31.1M	Buy	+675,976	New	+$30.4M	0.01%	570

Other funds holding ATS

MCM

Mason Capital Management New York $613M AUM 21.43% 1-Year Est. Return

Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return

EIG

EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return

BGC

Beutel, Goodman & Co Toronto, Ontario, Canada $14.8B AUM 15.12% 1-Year Est. Return

TCAM

Turtle Creek Asset Management Toronto, Ontario, Canada $2.67B AUM 0.64% 1-Year Est. Return

FFH

Fairfax Financial Holdings Toronto, Ontario, Canada $1.94B AUM 27.76% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $43.4B AUM 51.29% 1-Year Est. Return

Bank of Montreal's ATS Position: Q1 2026 in Review

Bank of Montreal increased its ATS Corp (ATS) stake by 3.1% in Q1 2026, buying an estimated $2.79M and bringing the position to 3,115,360 shares worth $87.8M. The position accounts for 0.03% of the portfolio, ranked #386.

Bank of Montreal first reported a position in ATS in Q2 2023 and has held it in 12 quarters since. 130 funds tracked by Wall St. Rank hold ATS as of Q1 2026.

Bank of Montreal held 3,115,360 shares of ATS Corp worth $87.8M as of Q1 2026.
Bank of Montreal bought 92,667 ATS Corp shares in Q1 2026, an estimated $2.79M.
ATS Corp made up 0.03% of Bank of Montreal's portfolio in Q1 2026, its #386 holding.
Bank of Montreal first reported a position in ATS Corp in Q2 2023 and has held it in 12 quarters since.
130 funds tracked by Wall St. Rank held ATS Corp as of Q1 2026.

Based on Bank of Montreal's 13F filing for Q1 2026, filed 13 May 2026.