Calamos Advisors
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Calamos Advisors’s Ceco Environmental CECO Stock Holding History

Calamos Advisors’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
Q2 		$5.71M Buy
62,971
+4,918
+8% +$389K 0.02% 525
2026
Q1 		$3.46M Buy
58,053
+5,143
+10% +$331K 0.01% 606
2025
Q4 		$3.17M Sell
52,910
-4,711
-8% -$252K 0.01% 581
2025
Q3 		$2.95M Buy
57,621
+26,397
+85% +$1.12M 0.01% 597
2025
Q2 		$884K Buy
31,224
+14,346
+85% +$357K ﹤0.01% 704
2025
Q1 		$385K Sell
16,878
-95,197
-85% -$2.54M ﹤0.01% 740
2024
Q4 		$3.39M Buy
112,075
+24,314
+28% +$692K 0.01% 553
2024
Q3 		$2.47M Sell
87,761
-1,970
-2% -$55.4K 0.01% 589
2024
Q2 		$2.59M Sell
89,731
-52,418
-37% -$1.27M 0.01% 575
2024
Q1 		$3.27M Sell
142,149
-75,592
-35% -$1.56M 0.02% 543
2023
Q4 		$4.42M Buy
217,741
+7,430
+4% +$135K 0.02% 531
2023
Q3 		$3.36M Buy
210,311
+118,429
+129% +$1.62M 0.02% 572
2023
Q2 		$1.23M Sell
91,882
-92,546
-50% -$1.15M 0.01% 686
2023
Q1 		$2.58M Buy
+184,428
New +$2.61M 0.01% 718

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
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

Calamos Advisors's CECO Position: Q2 2026 in Review

Calamos Advisors increased its Ceco Environmental (CECO) stake by 8.5% in Q2 2026, buying an estimated $389K and bringing the position to 62,971 shares worth $5.71M. The position accounts for 0.02% of the portfolio, ranked #525.

Calamos Advisors first reported a position in CECO in Q1 2023 and has held it in 14 quarters since. 344 funds tracked by Wall St. Rank hold CECO as of Q2 2026.

  • Calamos Advisors held 62,971 shares of Ceco Environmental worth $5.71M as of Q2 2026.
  • Calamos Advisors bought 4,918 Ceco Environmental shares in Q2 2026, an estimated $389K.
  • Ceco Environmental made up 0.02% of Calamos Advisors's portfolio in Q2 2026, its #525 holding.
  • Calamos Advisors first reported a position in Ceco Environmental in Q1 2023 and has held it in 14 quarters since.
  • 344 funds tracked by Wall St. Rank held Ceco Environmental as of Q2 2026.

Based on Calamos Advisors's 13F filing for Q2 2026, filed 31 Jul 2026.