CECO Institutional Ownership & Shareholders
CECO ENVIRONMENTAL CORP (CECO) is currently held by 332 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $4.59B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Fmr Llc is currently the largest disclosed institutional shareholder of CECO tracked by InsiderSet, reporting ownership valued at approximately $410.55M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $219.89M, representing an estimated loss of -46.44% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 46% of the total disclosed CECO value among the investors covered in this analysis. Major shareholders include Fmr Llc, Blackrock, Inc., Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in CECO ENVIRONMENTAL CORP (CECO).
This page ranks the largest institutional CECO shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
332
Total Reported Value
$4.59B
Largest Holder
Fmr Llc
Largest Position
$410.55M
Insider Transactions (90d)
1
Latest Filing Quarter
Q2 2026
New Institutional Positions
98
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.02% | 4,524,438 | $410,547,534 | $219,887,687 | -$190,659,847 | -46.44% | |
| Blackrock, Inc. | 0.01% | 4,323,986 | $392,358,496 | $210,145,720 | -$182,212,776 | -46.44% | |
| Vanguard Capital Management Llc | 0.00% | 2,339,252 | $212,263,727 | $113,687,647 | -$98,576,080 | -46.44% | |
| Dimensional Fund Advisors Lp | 0.04% | 2,185,315 | $198,294,132 | $106,206,309 | -$92,087,823 | -46.44% | |
| T. Rowe Price Investment Management, Inc. | 0.13% | 2,153,953 | $195,450,000 | $104,682,116 | -$90,767,884 | -46.44% | |
| American Century Companies Inc | 0.08% | 2,088,421 | $189,503,480 | $101,497,261 | -$88,006,219 | -46.44% | |
| Driehaus Capital Management Llc | 0.82% | 1,560,486 | $141,598,500 | $75,839,620 | -$65,758,880 | -46.44% | |
| Geode Capital Management, Llc | 0.01% | 1,460,389 | $132,541,360 | $70,974,905 | -$61,566,455 | -46.45% | |
| Divisadero Street Capital Management, Lp | 2.82% | 1,329,817 | $120,667,595 | $64,629,106 | -$56,038,489 | -46.44% | |
| State Street Corp | 0.00% | 1,264,690 | $114,757,971 | $61,463,934 | -$53,294,037 | -46.44% | |
| Capital World Investors | 0.01% | 1,157,200 | $105,004,328 | $56,239,920 | -$48,764,408 | -46.44% | |
| Two Sigma Investments, Lp | 0.07% | 1,013,412 | $91,957,005 | $49,251,823 | -$42,705,182 | -46.44% | |
| Needham Investment Management Llc | 2.62% | 957,500 | $86,883,550 | $46,534,500 | -$40,349,050 | -46.44% | |
| Royce & Associates Lp | 0.62% | 842,317 | $76,431,845 | $40,936,606 | -$35,495,239 | -46.44% | |
| Price T Rowe Associates Inc | 0.01% | 835,692 | $75,831,000 | $40,614,631 | -$35,216,369 | -46.44% | |
| Emerald Advisers, Llc | 1.57% | 736,784 | $66,855,780 | $35,807,702 | -$31,048,078 | -46.44% | |
| King Luther Capital Management Corp | 0.27% | 716,925 | $65,053,775 | $34,842,555 | -$30,211,220 | -46.44% | |
| Invesco Ltd. | 0.00% | 667,929 | $60,607,877 | $32,461,349 | -$28,146,528 | -46.44% | |
| Lord, Abbett & Co. Llc | 0.17% | 642,111 | $58,265,000 | $31,206,595 | -$27,058,405 | -46.44% | |
| Ies Holdings, Inc. | 18.22% | 623,527 | $56,578,840 | $30,303,412 | -$26,275,428 | -46.44% | |
| Thrivent Financial For Lutherans | 0.09% | 607,981 | $55,167,000 | $29,547,877 | -$25,619,123 | -46.44% | |
| Gw&K Investment Management, Llc | 0.43% | 601,544 | $54,584,000 | $29,235,038 | -$25,348,962 | -46.44% | |
| Janus Henderson Group Plc | 0.03% | 894,782 | $53,311,112 | $43,486,405 | -$9,824,707 | -18.43% | |
| Arrowstreet Capital, Limited Partnership | 0.02% | 568,484 | $51,584,238 | $27,628,322 | -$23,955,916 | -46.44% | |
| Northern Trust Corp | 0.01% | 492,491 | $44,688,634 | $23,935,063 | -$20,753,571 | -46.44% | |
| Ubs Group Ag | 0.01% | 475,224 | $43,121,825 | $23,095,886 | -$20,025,939 | -46.44% | |
| Emerald Mutual Fund Advisers Trust | 1.50% | 471,220 | $42,758,503 | $22,901,292 | -$19,857,211 | -46.44% | |
| Vanguard Portfolio Management Llc | 0.00% | 454,727 | $41,261,928 | $22,099,732 | -$19,162,196 | -46.44% | |
| Legal & General Group Plc | 0.01% | 445,900 | $40,460,966 | $21,670,740 | -$18,790,226 | -46.44% | |
| Charles Schwab Investment Management Inc | 0.01% | 442,654 | $40,166,424 | $21,512,984 | -$18,653,440 | -46.44% | |
| Nuveen, Llc | 0.01% | 414,241 | $37,588,228 | $20,132,113 | -$17,456,115 | -46.44% | |
| Voya Investment Management Llc | 0.03% | 396,295 | $35,959,808 | $19,259,937 | -$16,699,871 | -46.44% | |
| Vanguard Fiduciary Trust Co | 0.01% | 379,724 | $34,456,156 | $18,454,586 | -$16,001,570 | -46.44% | |
| Oberweis Asset Management Inc/ | 0.67% | 358,072 | $32,491,453 | $17,402,299 | -$15,089,154 | -46.44% | |
| Swedbank Ab | 0.03% | 443,000 | $30,850,520 | $21,529,800 | -$9,320,720 | -30.21% | |
| Deutsche Bank Ag\ | 0.01% | 335,846 | $30,474,666 | $16,322,116 | -$14,152,550 | -46.44% | |
| Van Lanschot Kempen Investment Management N.V. | 0.23% | 327,348 | $29,703,558 | $15,909,113 | -$13,794,445 | -46.44% | |
| Harvey Partners, Llc | 1.96% | 311,132 | $28,232,118 | $15,121,015 | -$13,111,103 | -46.44% | |
| Kennedy Capital Management Llc | 0.46% | 284,314 | $25,798,626 | $13,817,660 | -$11,980,966 | -46.44% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.04% | 274,322 | $24,891,979 | $13,332,049 | -$11,559,930 | -46.44% |
| Morgan Stanley | 0.00% | 266,873 | $24,216,144 | $12,970,028 | -$11,246,116 | -46.44% | |
| Goldman Sachs Group Inc | 0.00% | 266,161 | $24,151,434 | $12,935,425 | -$11,216,009 | -46.44% | |
| Russell Investments Group, Ltd. | 0.02% | 262,460 | $23,815,731 | $12,755,556 | -$11,060,175 | -46.44% | |
| Millennium Management Llc | 0.02% | 259,494 | $23,546,486 | $12,611,408 | -$10,935,078 | -46.44% | |
| Segall Bryant & Hamill, Llc | 0.28% | 259,165 | $23,516,632 | $12,595,419 | -$10,921,213 | -46.44% | |
| New South Capital Management Inc | 1.02% | 257,327 | $23,349,889 | $12,506,092 | -$10,843,797 | -46.44% | |
| Rockefeller Capital Management L.P. | 0.03% | 245,863 | $22,309,609 | $11,948,942 | -$10,360,667 | -46.44% | |
| Engineers Gate Manager Lp | 0.29% | 243,155 | $22,063,885 | $11,817,333 | -$10,246,552 | -46.44% | |
| Penn Capital Management Company, Llc | 1.37% | 237,119 | $21,554,033 | $11,523,983 | -$10,030,050 | -46.53% | |
| Bank Of America Corp | 0.00% | 233,498 | $21,187,609 | $11,348,003 | -$9,839,606 | -46.44% |
Frequently asked questions about CECO
Who are the largest institutional holders of CECO?
The largest institutional holders of CECO reported in the latest SEC Form 13F filings include Fmr Llc, Blackrock, Inc., Vanguard Capital Management Llc, Dimensional Fund Advisors Lp, and T. Rowe Price Investment Management, Inc.. InsiderSet ranks institutional holders by their latest reported CECO position.
What is CECO institutional ownership?
This page tracks CECO positions reported by institutional investment managers through SEC Form 13F. CECO ENVIRONMENTAL CORP (CECO) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own CECO?
InsiderSet currently tracks 332 institutional managers reporting CECO holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of CECO shareholders.
How much CECO stock do institutions own?
Institutional investment managers disclosed approximately $4.59B in CECO holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was CECO institutional ownership last updated?
The latest CECO institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional CECO holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its CECO position after the reporting date.
Are institutions buying or selling CECO?
Institutional buying and selling can be analyzed by comparing CECO positions across consecutive 13F reporting periods. InsiderSet's CECO Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View CECO ownership changes.
How has CECO institutional ownership changed over time?
InsiderSet tracks CECO institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.