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CITADEL ADVISORS LLC

Position in CECO — Ceco Environmental Corp

CIK 1423053 MIAMI, FL

Position in CECO

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$12,951,857
+$9,057,897 QoQ
Shares Held
217,386
+234.1% QoQ
Ownership
0.606%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
21 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in CECO Over Time

Shares Held

Position Value (USD)

Derivatives in CECO

reported options exposure · as of Mar 31, 2026
CallValue
$1,024,776
CallShares
17,200
PutValue
$822,204
PutShares
13,800

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Pollution & Treatment Controls

Industrials · as of Mar 31, 2026

CITADEL ADVISORS LLC holds $43,243,660 across 7 Pollution & Treatment Controls names. CECO ranks #2 (30.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 CECO
Ceco Environmental Corp
This page
217,386 $12,951,857

All Filings in CECO

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48 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $12,951,857 217,386
2026-03-31 $1,024,776 17,200
2026-03-31 $822,204 13,800
2025-12-31 $3,893,960 65,062
2025-12-31 $329,175 5,500
2025-09-30 $414,720 8,100
2025-09-30 $17,589,657 343,548
2025-06-30 $226,480 8,000
2025-06-30 $3,543,448 125,166
2025-03-31 $245,328 10,760
2025-03-31 $186,960 8,200
2025-03-31 $166,440 7,300
2024-12-31 $999,827 33,074
2024-12-31 $69,529 2,300
2024-12-31 $574,370 19,000
2024-09-30 $485,040 17,200
2024-09-30 $39,480 1,400
2024-06-30 $207,720 7,200
2024-06-30 $57 2
2024-06-30 $744,330 25,800
2024-03-31 $1,369,805 59,505
2024-03-31 $329,186 14,300
2024-03-31 $214,086 9,300
2023-12-31 $73,008 3,600
2023-12-31 $281,892 13,900
2023-12-31 $1,466,183 72,297
2023-09-30 $2,397,543 150,128
2023-09-30 $236,356 14,800
2023-09-30 $12,776 800
2023-06-30 $88,176 6,600
2023-06-30 $3,952,222 295,825
2023-06-30 $33,400 2,500
2023-03-31 $8,707,627 622,418
2023-03-31 $25,182 1,800
2023-03-31 $109,122 7,800
2022-12-31 $50,224 4,300
2022-12-31 $2,189,415 187,450
2022-12-31 $1,322,176 113,200
2022-09-30 $1,348,818 152,409
2022-06-30 $506,338 84,672
2021-12-31 $67,451 10,827
2021-06-30 $385,099 53,785
2021-06-30 $172,556 24,100
2021-03-31 $451,803 56,974
2021-03-31 $317,200 40,000
2020-12-31 $647,280 93,000
2020-03-31 $145,282 31,110
2020-03-31 $131,227 28,100