Latest Period
Q1 2026
Security Snapshot
CECO ENVIRONMENTAL CORP - COMMON STOCK (CECO) Institutional Ownership
CUSIP: 125141101
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
258
Shares (Excl. Options)
31,440,469
Price
$59.58
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- Type / Class
- Equity / COMMON STOCK
- Symbol
- CECO on Nasdaq
- Shares outstanding
- 35,530,750
- Price per share
- $74.29
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 31,440,469
- Total reported value
- $1,873,138,781
- % of total 13F portfolios
- 0.01%
- Share change
- +1,964,871
- Value change
- +$116,202,119
- Number of holders
- 258
- Price from insider filings
- $74.29
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- CECO - CECO ENVIRONMENTAL CORP - COMMON STOCK is tracked under CUSIP 125141101.
- 258 institutions reported positions in Q1 2026.
- 9 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 230 to 258 between Q4 2025 and Q1 2026.
- Reported value moved from $1,763,483,359 to $1,873,138,781.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 258 institutions filings for Q1 2026.
Security key
125141101
Latest holder period
Q1 2026
13F holders
258
13D/G owners
9
CIK / CUSIP context first
Open Q1 2026 holders
CECO full holder history
CECO ENVIRONMENTAL CORP SEC filings
CECO ENVIRONMENTAL CORP company facts
CECO ENVIRONMENTAL CORP insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 125141101:
Significant Owners of CECO ENVIRONMENTAL CORP - COMMON STOCK (CECO) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| DEZWIREK JASON | 12% | $259,443,260 | 4,198,111 | Jason DeZwirek | 23 Feb 2026 | |||
| BlackRock, Inc. | 6.3% | $62,892,553 | 2,221,551 | BlackRock, Inc. | 30 Jun 2025 | |||
| FMR LLC | 6.2% | +22% | $64,390,839 | +$11,181,062 | 2,174,632 | +21% | FMR LLC | 30 Jun 2025 |
| T. Rowe Price Investment Management, Inc. | 6% | $138,612,562 | 2,131,845 | T. Rowe Price Investment Management, Inc. | 31 Mar 2026 | |||
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC | 5.7% | $125,967,682 | 2,038,312 | American Century Investment Management, Inc. | 31 Dec 2025 | |||
| VANGUARD GROUP INC | 5% | -0.4% | $106,568,849 | +$588,925 | 1,780,596 | +0.56% | The Vanguard Group | 31 Dec 2025 |
| Capital International Investors | 4.7% | $85,777,971 | 1,675,351 | Capital International Investors | 30 Sep 2025 | |||
| DIMENSIONAL FUND ADVISORS LP | 3.6% | $24,340,540 | 1,254,667 | Dimensional Fund Advisors LP | 31 Mar 2025 | |||
| Hood River Capital Management LLC | 1.4% | -69% | $25,209,549 | -$73,487,053 | 492,374 | -74% | Hood River Capital Management LLC | 30 Sep 2025 |
As of 31 Mar 2026, 258 institutional investors reported holding 31,440,469 shares of CECO ENVIRONMENTAL CORP - COMMON STOCK (CECO). This represents 88% of the company’s total 35,530,750 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of CECO ENVIRONMENTAL CORP - COMMON STOCK (CECO) together control 62% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| FMR LLC | 6.6% | 2,328,888 | +5.3% | 0.01% | $138,755,157 |
| BlackRock, Inc. | 6.4% | 2,285,277 | -0% | 0% | $136,156,803 |
| T. Rowe Price Investment Management, Inc. | 6% | 2,131,845 | +197% | 0.09% | $127,016,000 |
| AMERICAN CENTURY COMPANIES INC | 5.3% | 1,894,177 | -7.1% | 0.06% | $112,855,166 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.8% | 1,332,469 | 0% | 0% | $79,388,503 |
| Capital World Investors | 3% | 1,055,080 | +217% | 0.01% | $62,861,666 |
| TWO SIGMA INVESTMENTS, LP | 2.7% | 959,698 | +83% | 0.05% | $57,178,807 |
| JANUS HENDERSON GROUP PLC | 2.6% | 907,782 | -1.5% | 0.03% | $54,086,822 |
| DIMENSIONAL FUND ADVISORS LP | 2.5% | 903,291 | +0.87% | 0.01% | $53,812,769 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 856,133 | +17% | 0% | $51,016,546 |
| ROYCE & ASSOCIATES LP | 2.3% | 827,781 | +12% | 0.49% | $49,319,192 |
| KING LUTHER CAPITAL MANAGEMENT CORP | 2.1% | 750,083 | -21% | 0.19% | $44,689,945 |
| STATE STREET CORP | 1.9% | 657,349 | +0.99% | 0% | $39,164,853 |
| Thrivent Financial for Lutherans | 1.8% | 640,006 | -4.8% | 0.07% | $38,126,000 |
| Driehaus Capital Management LLC | 1.8% | 639,892 | +10% | 0.28% | $38,124,765 |
| IES Holdings, Inc. | 1.6% | 568,527 | +101% | 16% | $33,872,839 |
| EMERALD ADVISERS, LLC | 1.5% | 523,017 | +14% | 0.99% | $31,161,353 |
| LORD, ABBETT & CO. LLC | 1.2% | 414,400 | +105% | 0.08% | $24,690,000 |
| Legal & General Group Plc | 1.1% | 400,472 | -4.3% | 0.01% | $23,860,122 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 1.1% | 387,500 | +30% | 1.2% | $23,087,250 |
| MORGAN STANLEY | 0.99% | 350,740 | +19% | 0% | $20,897,172 |
| EMERALD MUTUAL FUND ADVISERS TRUST | 0.88% | 314,005 | +20% | 0.91% | $18,708,418 |
| Rockefeller Capital Management L.P. | 0.72% | 254,321 | 0.03% | $15,152,445 | |
| MARSHALL WACE, LLP | 0.71% | 251,904 | +3130% | 0.02% | $15,008,439 |
| NORTHERN TRUST CORP | 0.71% | 251,874 | +2.7% | 0% | $15,006,653 |
Institutional Holders of CECO ENVIRONMENTAL CORP - COMMON STOCK (CECO) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 31,440,469 | $1,873,138,781 | +$116,202,119 | $59.58 | 258 |
| 2025 Q4 | 29,463,900 | $1,763,483,359 | +$30,892,900 | $59.85 | 230 |
| 2025 Q3 | 28,689,275 | $1,469,014,088 | -$41,963,988 | $51.20 | 223 |
| 2025 Q2 | 29,533,109 | $836,112,974 | +$32,129,162 | $28.31 | 176 |
| 2025 Q1 | 29,019,049 | $661,701,183 | +$4,040,198 | $22.80 | 168 |
| 2024 Q4 | 28,700,286 | $867,879,540 | +$61,207,759 | $30.23 | 173 |
| 2024 Q3 | 26,597,751 | $748,827,118 | +$20,787,924 | $28.20 | 172 |
| 2024 Q2 | 25,805,618 | $744,389,725 | +$64,814,074 | $28.85 | 174 |
| 2024 Q1 | 23,844,042 | $548,828,086 | -$2,894,856 | $23.02 | 172 |
| 2023 Q4 | 23,945,610 | $485,587,280 | +$5,745,839 | $20.28 | 156 |
| 2023 Q3 | 23,870,895 | $381,219,817 | +$1,153,785 | $15.97 | 144 |
| 2023 Q2 | 23,867,510 | $318,872,994 | +$23,565,379 | $13.36 | 144 |
| 2023 Q1 | 22,038,767 | $308,225,395 | +$9,650,782 | $13.99 | 140 |
| 2022 Q4 | 21,930,886 | $256,185,071 | -$3,514,029 | $11.68 | 120 |
| 2022 Q3 | 22,264,368 | $197,061,917 | +$3,974,759 | $8.85 | 111 |
| 2022 Q2 | 21,886,720 | $130,891,482 | -$9,420,577 | $5.98 | 92 |
| 2022 Q1 | 23,534,851 | $129,146,699 | +$2,851,678 | $5.49 | 87 |
| 2021 Q4 | 23,011,348 | $143,328,071 | -$1,064,143 | $6.23 | 81 |
| 2021 Q3 | 23,120,707 | $162,723,601 | -$6,697,183 | $7.04 | 79 |
| 2021 Q2 | 24,056,678 | $172,146,826 | -$1,215,290 | $7.16 | 88 |
| 2021 Q1 | 24,222,794 | $192,078,841 | -$3,325,268 | $7.93 | 92 |
| 2020 Q4 | 24,713,594 | $171,999,450 | -$2,243,272 | $6.96 | 82 |
| 2020 Q3 | 24,999,442 | $182,224,725 | +$75,853 | $7.29 | 86 |
| 2020 Q2 | 24,986,353 | $164,632,580 | +$4,129,758 | $6.59 | 85 |
| 2020 Q1 | 24,491,873 | $114,360,490 | -$4,365,177 | $4.67 | 86 |
| 2019 Q4 | 24,878,204 | $190,559,799 | -$2,127,077 | $7.66 | 99 |
| 2019 Q3 | 25,164,346 | $175,739,330 | +$4,290,324 | $6.98 | 110 |
| 2019 Q2 | 24,329,412 | $233,307,921 | +$6,085,044 | $9.59 | 113 |
| 2019 Q1 | 23,905,096 | $172,119,286 | +$2,134,862 | $7.20 | 112 |
| 2018 Q4 | 23,635,579 | $159,608,645 | +$3,409,638 | $6.75 | 108 |
| 2018 Q3 | 23,021,189 | $181,392,475 | +$1,326,133 | $7.88 | 92 |
| 2018 Q2 | 22,904,151 | $140,645,079 | -$801,482 | $6.14 | 93 |
| 2018 Q1 | 23,264,938 | $103,526,870 | +$866,884 | $4.45 | 99 |
| 2017 Q4 | 23,020,191 | $118,096,333 | -$8,908,278 | $5.13 | 107 |
| 2017 Q3 | 23,420,632 | $198,397,009 | -$1,754,141 | $8.46 | 113 |
| 2017 Q2 | 23,532,965 | $216,085,147 | -$3,912,690 | $9.18 | 129 |
| 2017 Q1 | 23,805,674 | $250,309,608 | +$42,845,028 | $10.51 | 141 |
| 2016 Q4 | 21,245,999 | $296,387,850 | +$21,274,037 | $13.95 | 131 |
| 2016 Q3 | 19,122,663 | $215,683,673 | +$8,428,910 | $11.28 | 115 |
| 2016 Q2 | 18,383,333 | $160,660,321 | +$590,691 | $8.74 | 99 |
| 2016 Q1 | 18,524,411 | $115,058,905 | -$591,547 | $6.21 | 100 |
| 2015 Q4 | 18,521,750 | $141,623,787 | +$240,901 | $7.68 | 101 |
| 2015 Q3 | 18,389,844 | $150,862,419 | +$40,895,826 | $8.19 | 109 |
| 2015 Q2 | 12,847,558 | $145,540,148 | -$7,372,239 | $11.33 | 94 |
| 2015 Q1 | 13,426,687 | $142,449,806 | -$6,711,700 | $10.61 | 89 |
| 2014 Q4 | 13,646,892 | $211,908,019 | +$8,547,543 | $15.54 | 98 |
| 2014 Q3 | 13,147,495 | $176,322,107 | -$2,795,639 | $13.40 | 98 |
| 2014 Q2 | 12,821,096 | $199,883,828 | +$7,489,994 | $15.59 | 102 |
| 2014 Q1 | 12,329,344 | $204,550,671 | +$11,610,316 | $16.59 | 101 |