Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in CECO held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | 4.5M | $410.5M | +94.3% | 7.747% | 0.02% |
| 2 | BlackRock, Inc. | 4.3M | $392.4M | +89.2% | 7.404% | 0.01% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 2.3M | $212.3M | +75.6% | 4.006% | 0.00% |
| 4 | DIMENSIONAL FUND ADVISORS LP | 2.2M | $198.3M | +141.9% | 3.742% | 0.04% |
| 5 | AMERICAN CENTURY COMPANIES INC | 2.1M | $189.5M | +10.3% | 3.576% | 0.08% |
| 6 | DRIEHAUS CAPITAL MANAGEMENT LLC | 1.6M | $141.6M | +143.9% | 2.672% | 0.82% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 1.5M | $132.5M | +70.6% | 2.501% | 0.01% |
| 8 | Divisadero Street Capital Management, LP | 1.3M | $120.7M | +608.9% | 2.277% | 2.73% |
| 9 | STATE STREET CORP | 1.3M | $114.8M | +92.4% | 2.166% | 0.00% |
| 10 | Capital World Investors | 1.2M | $105.0M | +9.7% | 1.982% | 0.01% |
| 11 | TWO SIGMA INVESTMENTS, LP | 1.0M | $92.0M | +5.6% | 1.735% | 0.07% |
| 12 | NEEDHAM INVESTMENT MANAGEMENT LLC | 958K | $86.9M | +147.1% | 1.640% | 2.61% |
| 13 | Jupiter Topco LLC | 950K | $86.2M | β | 1.627% | 0.04% |
| 14 | ROYCE & ASSOCIATES LP | 842K | $76.4M | +1.8% | 1.442% | 0.62% |
| 15 | EMERALD ADVISERS, LLC | 737K | $66.9M | +40.9% | 1.262% | 1.57% |
| 16 | KING LUTHER CAPITAL MANAGEMENT CORP | 717K | $65.1M | -4.4% | 1.228% | 0.27% |
| 17 | Invesco Ltd. | 668K | $60.6M | +1707.4% | 1.144% | 0.00% |
| 18 | IES Holdings, Inc. | 624K | $56.6M | +9.7% | 1.068% | 18.22% |
| 19 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 568K | $51.6M | +393.3% | 0.973% | 0.02% |
| 20 | NORTHERN TRUST CORP | 492K | $44.7M | +95.5% | 0.843% | 0.01% |
| 21 | UBS Group AG | 475K | $43.1M | +136.3% | 0.814% | 0.01% |
| 22 | EMERALD MUTUAL FUND ADVISERS TRUST | 471K | $42.8M | +50.1% | 0.807% | 1.50% |
| 23 | VANGUARD PORTFOLIO MANAGEMENT LLC | 455K | $41.3M | +91.2% | 0.779% | 0.00% |
| 24 | Legal & General Group Plc | 446K | $40.5M | +11.3% | 0.764% | 0.01% |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 443K | $40.2M | +78.8% | 0.758% | 0.01% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in CECO β a direct measure of their conviction.
Filings activity in CECO during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 350 | +32% | 89.33% | +1.18 pp | $4.26B | +155% |
| Q1 2026 | 265 | +16% | 88.15% | +7.35 pp | $1.67B | +0.5% |
| Q4 2025 | 228 | +2.7% | 80.80% | +0.11 pp | $1.66B | +18% |
| Q3 2025 | 222 | +24% | 80.69% | 1.93 pp | $1.41B | +76% |
| Q2 2025 | 179 | +5.3% | 82.62% | +1.66 pp | $799M | +27% |
| Q1 2025 | 170 | 2.3% | 80.96% | 1.01 pp | $630M | 23% |
| Q4 2024 | 174 | +0.6% | 81.97% | +5.93 pp | $814M | +15% |
| Q3 2024 | 173 | β | 76.04% | β | $708M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying CECO stock.
Based on Q2 2026 13F filings, institutional ownership of CECO Environmental Corp. stands at 89.3%, held across 350 reporting institutions.
FMR LLC is the largest reported institutional holder of CECO, with approximately 4,524,438 shares worth $0.41B as of Q2 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of CECO, including TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for CECO is 72 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
106 institutions opened new positions in CECO during Q2 2026, while 24 fully exited. 212 added to existing positions and 23 trimmed.
CECO institutional ownership rose by 1.18 percentage points quarter-over-quarter, with a net change of +85 holders.
The top 10 institutions account for 47.4% of all reported 13F value in CECO, and the top 25 account for 68.4%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
CECO Environmental Corp. (CECO) Institutional Ownership