ACK Asset Management’s Core & Main CNM Stock Holding History

ACK Asset Management’s Portfolio CNM Stock Details CNM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$44.5M	Hold	900,000	–	–	5.55%	7
2025 Q4	$46.8M	Hold	900,000	–	–	5.87%	5
2025 Q3	$48.4M	Buy	+900,000	New	+$54.5M	6.06%	7
2024 Q3	–	Sell	-1,352,000	Closed	-$66.2M	–	20
2024 Q2	$66.2M	Hold	1,352,000	–	–	8.17%	5
2024 Q1	$77.4M	Hold	1,352,000	–	–	9.02%	1
2023 Q4	$54.6M	Buy	1,352,000 +47,000	+4%	+$1.59M	6.57%	7
2023 Q3	$37.6M	Buy	1,305,000 +150,000	+13%	+$4.63M	5.47%	8
2023 Q2	$36.2M	Buy	1,155,000 +330,000	+40%	+$8.84M	4.51%	11
2023 Q1	$19.1M	Buy	+825,000	New	+$18.2M	2.91%	14

Other funds holding CNM

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Select Equity Group New York $19.5B AUM 17.33% 1-Year Est. Return

Pictet Asset Management Carouge, Switzerland $94.8B AUM 24.11% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Royal London Asset Management United Kingdom $47.7B AUM 29.41% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

ACK Asset Management's CNM Position: Q1 2026 in Review

ACK Asset Management held its Core & Main (CNM) position steady in Q1 2026 at 900,000 shares worth $44.5M. The position accounts for 5.55% of the portfolio, ranked #7.

ACK Asset Management first reported a position in CNM in Q1 2023 and has held it in 9 quarters since. The position peaked at $77.4M in Q1 2024. 470 funds tracked by Wall St. Rank hold CNM as of Q1 2026.

ACK Asset Management held 900,000 shares of Core & Main worth $44.5M as of Q1 2026.
ACK Asset Management left its Core & Main share count unchanged in Q1 2026.
Core & Main made up 5.55% of ACK Asset Management's portfolio in Q1 2026, its #7 holding.
ACK Asset Management first reported a position in Core & Main in Q1 2023 and has held it in 9 quarters since.
ACK Asset Management's Core & Main position peaked at $77.4M in Q1 2024.
470 funds tracked by Wall St. Rank held Core & Main as of Q1 2026.

Based on ACK Asset Management's 13F filing for Q1 2026, filed 15 May 2026.