Who owns CECO ENVIRONMENTAL CORP?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of CECO from SEC Form 13F filings across 345 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 345 institutions disclosed 51.6M shares of CECO ENVIRONMENTAL CORP worth $4.68B — about 119.2% of shares outstanding; the largest disclosed holder is FMR LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
345
13F holders
$4.68B
value, 2026 filers
119.2%
of shares outstanding (51.6M sh)
110
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of CECO's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | 4.5M | $410.5M | 0.0% | 10.4% | +94.3% |
| 2 | BlackRock, Inc. | 4.3M | $392.4M | 0.0% | 10% | +89.2% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 2.3M | $212.3M | 0.0% | 5.4% | +75.6% |
| 4 | DIMENSIONAL FUND ADVISORS LP | 2.2M | $198.3M | 0.0% | 5% | +141.9% |
| 5 | T. Rowe Price Investment Management, Inc. | 2.2M | $195.4M | 0.1% | 5% | +1.0% |
| 6 | AMERICAN CENTURY COMPANIES INC | 2.1M | $189.5M | 0.1% | 4.8% | +10.3% |
| 7 | Driehaus Capital Management LLC | 1.6M | $141.6M | 0.8% | 3.6% | +143.9% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1.5M | $132.5M | 0.0% | 3.4% | +70.6% |
| 9 | Divisadero Street Capital Management, LP | 1.3M | $120.7M | 2.7% | 3.1% | +608.9% |
| 10 | STATE STREET CORP | 1.3M | $114.8M | 0.0% | 2.9% | +92.4% |
| 11 | Capital World Investors | 1.2M | $105.0M | 0.0% | 2.7% | +9.7% |
| 12 | TWO SIGMA INVESTMENTS, LP | 1.0M | $92.0M | 0.1% | 2.3% | +5.6% |
| 13 | NEEDHAM INVESTMENT MANAGEMENT LLC | 957,500 | $86.9M | 2.6% | 2.2% | +147.1% |
| 14 | Jupiter Topco LLCNEW | 949,904 | $86.2M | 0.0% | 2.2% | new |
| 15 | ROYCE & ASSOCIATES LP | 842,317 | $76.4M | 0.6% | 1.9% | +1.8% |
| 16 | PRICE T ROWE ASSOCIATES INC /MD/ | 835,692 | $75.8M | 0.0% | 1.9% | +3810.6% |
| 17 | EMERALD ADVISERS, LLC | 736,784 | $66.9M | 1.6% | 1.7% | +40.9% |
| 18 | KING LUTHER CAPITAL MANAGEMENT CORP | 716,925 | $65.1M | 0.3% | 1.7% | -4.4% |
| 19 | Invesco Ltd. | 667,929 | $60.6M | 0.0% | 1.5% | +1707.4% |
| 20 | LORD, ABBETT & CO. LLC | 642,111 | $58.3M | 0.2% | 1.5% | +54.9% |
| 21 | IES Holdings, Inc. | 623,527 | $56.6M | 18.2% | 1.4% | +9.7% |
| 22 | Thrivent Financial for Lutherans | 607,981 | $55.2M | 0.1% | 1.4% | -5.0% |
| 23 | GW&K Investment Management, LLCNEW | 601,544 | $54.6M | 0.4% | 1.4% | new |
| 24 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 568,484 | $51.6M | 0.0% | 1.3% | +393.3% |
| 25 | NORTHERN TRUST CORP | 492,491 | $44.7M | 0.0% | 1.1% | +95.5% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.