Jane Street
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Jane Street’s Ceco Environmental CECO Stock Holding History

Jane Street’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 		$417K Buy
+7,000
New +$450K ﹤0.01% 8474
2024
Q2 		– Sell
-10,300
Closed -$237K – 9428
2024
Q1 		$237K Buy
+10,300
New +$212K ﹤0.01% 7928

Other funds holding CECO

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Jane Street's CECO Position: Q1 2026 in Review

Jane Street sold out of Ceco Environmental (CECO) in Q1 2026, closing a stake of 88,820 shares — an estimated $5.71M sold.

Jane Street first reported a position in CECO in Q4 2013 and held it in 13 quarters. The position peaked at $16.3M in Q3 2025. 262 funds tracked by Wall St. Rank hold CECO as of Q1 2026.

  • Jane Street reported no remaining Ceco Environmental position as of Q1 2026 after selling out during the quarter.
  • Jane Street sold 88,820 Ceco Environmental shares in Q1 2026, an estimated $5.71M.
  • Jane Street first reported a position in Ceco Environmental in Q4 2013 and held it in 13 quarters.
  • Jane Street's Ceco Environmental position peaked at $16.3M in Q3 2025.
  • 262 funds tracked by Wall St. Rank held Ceco Environmental as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.