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 		– Sell
-88,820
Closed -$5.71M – 11698
2025
Q4 		$5.32M Sell
88,820
-229,014
-72% -$12.2M ﹤0.01% 3134
2025
Q3 		$16.3M Buy
317,834
+257,581
+427% +$10.9M ﹤0.01% 1860
2025
Q2 		$1.71M Buy
60,253
+14,323
+31% +$357K ﹤0.01% 4687
2025
Q1 		$1.05M Buy
+45,930
New +$1.22M ﹤0.01% 5487
2024
Q4 		– Sell
-28,256
Closed -$797K – 9481
2024
Q3 		$797K Sell
28,256
-9,806
-26% -$276K ﹤0.01% 6321
2024
Q2 		$1.1M Buy
38,062
+1,346
+4% +$32.6K ﹤0.01% 5589
2024
Q1 		$845K Buy
36,716
+12,027
+49% +$248K ﹤0.01% 5711
2023
Q4 		$501K Buy
+24,689
New +$450K ﹤0.01% 6748
2023
Q3 		– Sell
-14,453
Closed -$193K – 8690
2023
Q2 		$193K Sell
14,453
-158,938
-92% -$1.98M ﹤0.01% 7697
2023
Q1 		$2.43M Buy
173,391
+132,060
+320% +$1.87M ﹤0.01% 3487
2022
Q4 		$483K Buy
+41,331
New +$468K ﹤0.01% 6191
2021
Q2 		– Sell
-10,238
Closed -$81K – 9810
2021
Q1 		$81K Buy
+10,238
New +$81K ﹤0.01% 8705
2014
Q1 		– Sell
-23,088
Closed -$373K – 2694
2013
Q4 		$373K Buy
+23,088
New +$373K 0.01% 1469

Other funds holding CECO

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 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
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
DSCM
Divisadero Street Capital Management Miami, Florida $4.41B AUM 90.53% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 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. 264 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.
  • 264 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.