CM
CECO icon

Castleark Management’s Ceco Environmental CECO Stock Holding History

Castleark 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
2026
Q1 		– Sell
-156,505
Closed -$9.37M – 303
2025
Q4 		$9.37M Buy
156,505
+3,120
+2% +$167K 0.28% 69
2025
Q3 		$7.85M Buy
+153,385
New +$6.49M 0.22% 94

Other funds holding CECO

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Castleark Management's CECO Position: Q1 2026 in Review

Castleark Management sold out of Ceco Environmental (CECO) in Q1 2026, closing a stake of 156,505 shares — an estimated $9.37M sold.

Castleark Management first reported a position in CECO in Q3 2025 and held it in 2 quarters. The position peaked at $9.37M in Q4 2025. 265 funds tracked by Wall St. Rank hold CECO as of Q1 2026.

  • Castleark Management reported no remaining Ceco Environmental position as of Q1 2026 after selling out during the quarter.
  • Castleark Management sold 156,505 Ceco Environmental shares in Q1 2026, an estimated $9.37M.
  • Castleark Management first reported a position in Ceco Environmental in Q3 2025 and held it in 2 quarters.
  • Castleark Management's Ceco Environmental position peaked at $9.37M in Q4 2025.
  • 265 funds tracked by Wall St. Rank held Ceco Environmental as of Q1 2026.

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