Citadel Advisors’s Ceco Environmental CECO Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $13M | Buy |
217,386
+152,324
| +234% | +$9.8M | ﹤0.01% | 2878 |
|
|
2025
Q4 | $3.89M | Sell |
65,062
-278,486
| -81% | -$14.9M | ﹤0.01% | 4707 |
|
|
2025
Q3 | $17.6M | Buy |
343,548
+218,382
| +174% | +$9.24M | ﹤0.01% | 2497 |
|
|
2025
Q2 | $3.54M | Buy |
125,166
+114,406
| +1,063% | +$2.85M | ﹤0.01% | 4693 |
|
|
2025
Q1 | $245K | Sell |
10,760
-22,314
| -67% | -$595K | ﹤0.01% | 10029 |
|
|
2024
Q4 | $1,000K | Buy |
+33,074
| New | +$941K | ﹤0.01% | 7020 |
|
|
2024
Q3 | – | Sell |
-2
| Closed | -$56 | – | 14308 |
|
|
2024
Q2 | $58 | Sell |
2
-59,503
| -100% | -$1.44M | ﹤0.01% | 14110 |
|
|
2024
Q1 | $1.37M | Sell |
59,505
-12,792
| -18% | -$264K | ﹤0.01% | 6271 |
|
|
2023
Q4 | $1.47M | Sell |
72,297
-77,831
| -52% | -$1.42M | ﹤0.01% | 5933 |
|
|
2023
Q3 | $2.4M | Sell |
150,128
-145,697
| -49% | -$1.99M | ﹤0.01% | 4887 |
|
|
2023
Q2 | $3.95M | Sell |
295,825
-326,593
| -52% | -$4.06M | ﹤0.01% | 4007 |
|
|
2023
Q1 | $8.71M | Buy |
622,418
+434,968
| +232% | +$6.15M | ﹤0.01% | 2991 |
|
|
2022
Q4 | $2.19M | Buy |
187,450
+35,041
| +23% | +$397K | ﹤0.01% | 5304 |
|
|
2022
Q3 | $1.35M | Buy |
152,409
+67,737
| +80% | +$580K | ﹤0.01% | 6364 |
|
|
2022
Q2 | $507K | Buy |
+84,672
| New | +$469K | ﹤0.01% | 8608 |
|
|
2022
Q1 | – | Sell |
-10,827
| Closed | -$68K | – | 13662 |
|
|
2021
Q4 | $68K | Buy |
+10,827
| New | +$71.8K | ﹤0.01% | 13048 |
|
|
2021
Q3 | – | Sell |
-53,785
| Closed | -$385K | – | 13849 |
|
|
2021
Q2 | $385K | Sell |
53,785
-3,189
| -6% | -$24.7K | ﹤0.01% | 10657 |
|
|
2021
Q1 | $452K | Buy |
+56,974
| New | +$451K | ﹤0.01% | 9892 |
|
|
2020
Q2 | – | Sell |
-31,110
| Closed | -$145K | – | 9824 |
|
|
2020
Q1 | $145K | Buy |
31,110
+14,571
| +88% | +$99K | ﹤0.01% | 8330 |
|
|
2019
Q4 | $127K | Buy |
16,539
+1,185
| +8% | +$8.86K | ﹤0.01% | 8444 |
|
|
2019
Q3 | $107K | Sell |
15,354
-13,357
| -47% | -$107K | ﹤0.01% | 8456 |
|
|
2019
Q2 | $275K | Sell |
28,711
-2,462
| -8% | -$21.1K | ﹤0.01% | 7715 |
|
|
2019
Q1 | $225K | Buy |
31,173
+6,892
| +28% | +$50K | ﹤0.01% | 8048 |
|
|
2018
Q4 | $164K | Sell |
24,281
-13,155
| -35% | -$101K | ﹤0.01% | 8001 |
|
|
2018
Q3 | $295K | Buy |
37,436
+6,710
| +22% | +$51.1K | ﹤0.01% | 7582 |
|
|
2018
Q2 | $189K | Sell |
30,726
-4,563
| -13% | -$25.1K | ﹤0.01% | 7928 |
|
|
2018
Q1 | $157K | Buy |
35,289
+18,969
| +116% | +$88.9K | ﹤0.01% | 7511 |
|
|
2017
Q4 | $84K | Sell |
16,320
-12,448
| -43% | -$83.8K | ﹤0.01% | 7488 |
|
|
2017
Q3 | $243K | Buy |
28,768
+11,633
| +68% | +$99.9K | ﹤0.01% | 6385 |
|
|
2017
Q2 | $157K | Sell |
17,135
-3,854
| -18% | -$38.8K | ﹤0.01% | 6712 |
|
|
2017
Q1 | $221K | Sell |
20,989
-6,167
| -23% | -$74.3K | ﹤0.01% | 6351 |
|
|
2016
Q4 | $379K | Sell |
27,156
-34,828
| -56% | -$425K | ﹤0.01% | 5329 |
|
|
2016
Q3 | $699K | Buy |
61,984
+34,788
| +128% | +$354K | ﹤0.01% | 4325 |
|
|
2016
Q2 | $238K | Buy |
27,196
+15,096
| +125% | +$112K | ﹤0.01% | 5565 |
|
|
2016
Q1 | $75K | Sell |
12,100
-43,576
| -78% | -$295K | ﹤0.01% | 6142 |
|
|
2015
Q4 | $428K | Buy |
55,676
+52,500
| +1,653% | +$444K | ﹤0.01% | 4677 |
|
|
2015
Q3 | $26K | Buy |
+3,176
| New | +$29.8K | ﹤0.01% | 8007 |
|
Other funds holding CECO
VCM
Citadel Advisors's CECO Position: Q1 2026 in Review
Citadel Advisors increased its Ceco Environmental (CECO) stake by 234% in Q1 2026, buying an estimated $9.8M and bringing the position to 217,386 shares worth $13M. The position accounts for ﹤0.01% of the portfolio, ranked #2878.
Citadel Advisors first reported a position in CECO in Q3 2015 and has held it in 37 quarters since. The position peaked at $17.6M in Q3 2025. 262 funds tracked by Wall St. Rank hold CECO as of Q1 2026.
- Citadel Advisors held 217,386 shares of Ceco Environmental worth $13M as of Q1 2026.
- Citadel Advisors bought 152,324 Ceco Environmental shares in Q1 2026, an estimated $9.8M.
- Ceco Environmental made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #2878 holding.
- Citadel Advisors first reported a position in Ceco Environmental in Q3 2015 and has held it in 37 quarters since.
- Citadel Advisors's Ceco Environmental position peaked at $17.6M in Q3 2025.
- 262 funds tracked by Wall St. Rank held Ceco Environmental as of Q1 2026.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.