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ACK Asset Management’s Ceco Environmental CECO Stock Holding History

ACK Asset Management’s Portfolio CECO Stock Details CECO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-1,201,000
Closed -$27.4M – 22
2025
Q1 		$27.4M Sell
1,201,000
-71,000
-6% -$1.89M 4.5% 10
2024
Q4 		$38.5M Buy
1,272,000
+290,800
+30% +$8.27M 5.15% 8
2024
Q3 		$27.7M Buy
981,200
+160,000
+19% +$4.5M 3.42% 12
2024
Q2 		$23.7M Buy
+821,200
New +$19.9M 2.92% 15

Other funds holding CECO

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
HRCM
Hood River Capital Management Palm Beach Gardens, Florida $13.8B AUM 163.97% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Luther King Capital Management (LKCM)
Luther King Capital Management (LKCM) Fort Worth, Texas $24.4B AUM 22.19% 1-Year Est. Return
RA
Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return

ACK Asset Management's CECO Position: Q2 2025 in Review

ACK Asset Management sold out of Ceco Environmental (CECO) in Q2 2025, closing a stake of 1,201,000 shares — an estimated $27.4M sold.

ACK Asset Management first reported a position in CECO in Q2 2024 and held it in 4 quarters. The position peaked at $38.5M in Q4 2024. 179 funds tracked by Wall St. Rank hold CECO as of Q2 2025.

  • ACK Asset Management reported no remaining Ceco Environmental position as of Q2 2025 after selling out during the quarter.
  • ACK Asset Management sold 1,201,000 Ceco Environmental shares in Q2 2025, an estimated $27.4M.
  • ACK Asset Management first reported a position in Ceco Environmental in Q2 2024 and held it in 4 quarters.
  • ACK Asset Management's Ceco Environmental position peaked at $38.5M in Q4 2024.
  • 179 funds tracked by Wall St. Rank held Ceco Environmental as of Q2 2025.

Based on ACK Asset Management's 13F filing for Q2 2025, filed 13 Aug 2025.