Security record
CECO
CECO Environmental Corp. · Industrials · Industrial - Pollution & Treatment Controls
103Tracked holders
+15Δ holders
31.59MShares held
$2.86BReported value
+19New positions
−4Exits
Momentum inputs (comparable managers):
holder breadth +17.0% ·
share flow +30.0% ·
net new positions +14.6%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 103 | +15 | 31.59M | $2.86B | +19 | −4 |
| Q1 2026 | 91 | +4 | 19.02M | $1.13B | +9 | −5 |
| Q4 2025 | 87 | +2 | 19.22M | $1.15B | +2 | — |
| Q3 2025 | 15 | 0 | 9.38M | $480.39M | +1 | −1 |
| Q2 2025 | 12 | -1 | 8.72M | $246.85M | — | −1 |
| Q1 2025 | 10 | +1 | 2.07M | $47.10M | +1 | — |
| Q4 2024 | 9 | +1 | 1.90M | $57.49M | +1 | — |
| Q3 2024 | 7 | -2 | 1.68M | $47.38M | — | −2 |
| Q2 2024 | 9 | — | 1.99M | $57.31M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Fidelity (FMR) ✦ | 4.52M | +94.3% | $410.55M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 2 | Fidelity (FMR) ✦ | 4.52M | +94.3% | $410.55M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 3 | Fidelity (FMR) ✦ | 4.52M | +94.3% | $410.55M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | Fidelity (FMR) ✦ | 4.52M | +94.3% | $410.55M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | Fidelity (FMR) ✦ | 4.52M | +94.3% | $410.55M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 4.32M | +89.2% | $392.36M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 22 | Vanguard Capital Management Llc | 2.34M | +75.6% | $212.26M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | Dimensional Fund Advisors Lp | 2.19M | +141.9% | $198.29M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 24 | Dimensional Fund Advisors Lp | 2.19M | +141.9% | $198.29M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 25 | Dimensional Fund Advisors Lp | 2.19M | +141.9% | $198.29M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 26 | Dimensional Fund Advisors Lp | 2.19M | +141.9% | $198.29M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 27 | Dimensional Fund Advisors Lp | 2.19M | +141.9% | $198.29M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 28 | American Century Companies Inc | 2.09M | +10.2% | $189.50M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 29 | Geode Capital Management ✦ (passive) | 1.46M | +70.6% | $132.54M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 30 | Geode Capital Management ✦ (passive) | 1.46M | +70.6% | $132.54M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 31 | State Street Global Advisors ✦ (passive) | 1.26M | +92.4% | $114.76M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 32 | Capital World Investors ✦ | 1.16M | +9.7% | $105.00M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 33 | Two Sigma Investments ✦ | 1.01M | +5.6% | $91.96M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 34 | T. Rowe Price ✦ | 835.69K | +3810.6% | $75.83M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 35 | T. Rowe Price ✦ | 835.69K | +3810.6% | $75.83M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 36 | Invesco Ltd. | 667.93K | +1707.4% | $60.61M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 37 | Invesco Ltd. | 667.93K | +1707.4% | $60.61M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 38 | Invesco Ltd. | 667.93K | +1707.4% | $60.61M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 39 | Invesco Ltd. | 667.93K | +1707.4% | $60.61M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 40 | Invesco Ltd. | 667.93K | +1707.4% | $60.61M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 41 | Invesco Ltd. | 667.93K | +1707.4% | $60.61M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 42 | Arrowstreet Capital ✦ | 568.48K | +393.3% | $51.58M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 43 | Northern Trust Corp | 492.49K | +95.5% | $44.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 44 | Northern Trust Corp | 492.49K | +95.5% | $44.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 45 | Northern Trust Corp | 492.49K | +95.5% | $44.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 46 | Northern Trust Corp | 492.49K | +95.5% | $44.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 47 | Northern Trust Corp | 492.49K | +95.5% | $44.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 48 | Northern Trust Corp | 492.49K | +95.5% | $44.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 49 | UBS Group AG | 475.22K | +136.3% | $43.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 50 | UBS Group AG | 475.22K | +136.3% | $43.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | UBS Group AG | 475.22K | +136.3% | $43.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | UBS Group AG | 475.22K | +136.3% | $43.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Legal & General Group Plc | 445.90K | +11.3% | $40.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Legal & General Group Plc | 445.90K | +11.3% | $40.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 55 | Legal & General Group Plc | 445.90K | +11.3% | $40.46M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 56 | Charles Schwab Investment… | 442.65K | +78.8% | $40.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 57 | Assenagon Asset Management S.A. | 439.58K | New | $39.89M | 0.0% | New | 1 | SEC ↗ |
| 58 | Assenagon Asset Management S.A. | 439.58K | New | $39.89M | 0.0% | New | 1 | SEC ↗ |
| 59 | Nuveen, LLC | 414.24K | +239.9% | $37.59M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 60 | Nuveen, LLC | 414.24K | +239.9% | $37.59M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | Nuveen, LLC | 414.24K | +239.9% | $37.59M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 62 | Nuveen, LLC | 414.24K | +239.9% | $37.59M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 63 | Voya Investment Management Llc | 396.30K | +7634.1% | $35.96M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 64 | Voya Investment Management Llc | 396.30K | +7634.1% | $35.96M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Voya Investment Management Llc | 396.30K | +7634.1% | $35.96M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Deutsche Bank Ag\ | 335.85K | +47.4% | $30.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Deutsche Bank Ag\ | 335.85K | +47.4% | $30.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 68 | Deutsche Bank Ag\ | 335.85K | +47.4% | $30.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | First Eagle Investment Management… | 274.32K | +13.1% | $24.89M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 70 | First Eagle Investment Management… | 274.32K | +13.1% | $24.89M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 71 | Morgan Stanley ✦ | 266.87K | -23.9% | $24.22M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 72 | Morgan Stanley ✦ | 266.87K | -23.9% | $24.22M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 73 | Morgan Stanley ✦ | 266.87K | -23.9% | $24.22M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 74 | Morgan Stanley ✦ | 266.87K | -23.9% | $24.22M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 75 | Morgan Stanley ✦ | 266.87K | -23.9% | $24.22M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 76 | Morgan Stanley ✦ | 266.87K | -23.9% | $24.22M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 77 | Morgan Stanley ✦ | 266.87K | -23.9% | $24.22M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 78 | Morgan Stanley ✦ | 266.87K | -23.9% | $24.22M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 79 | Morgan Stanley ✦ | 266.87K | -23.9% | $24.22M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 80 | Goldman Sachs Group ✦ | 266.16K | +110.4% | $24.15M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 81 | Goldman Sachs Group ✦ | 266.16K | +110.4% | $24.15M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 82 | Goldman Sachs Group ✦ | 266.16K | +110.4% | $24.15M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 83 | Russell Investments Group, Ltd. | 262.46K | +129.3% | $23.82M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 84 | Russell Investments Group, Ltd. | 262.46K | +129.3% | $23.82M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 85 | Russell Investments Group, Ltd. | 262.46K | +129.3% | $23.82M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 86 | Russell Investments Group, Ltd. | 262.46K | +129.3% | $23.82M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 87 | Russell Investments Group, Ltd. | 262.46K | +129.3% | $23.82M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 88 | Russell Investments Group, Ltd. | 262.46K | +129.3% | $23.82M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 89 | Russell Investments Group, Ltd. | 262.46K | +129.3% | $23.82M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 90 | Millennium Management ✦ | 259.49K | +2105.1% | $23.55M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 91 | Rockefeller Capital Management L.P. | 245.86K | -3.3% | $22.31M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 92 | Rockefeller Capital Management L.P. | 245.86K | -3.3% | $22.31M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 93 | Rockefeller Capital Management L.P. | 245.86K | -3.3% | $22.31M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 94 | Rockefeller Capital Management L.P. | 245.86K | -3.3% | $22.31M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 95 | Bank Of America Corp /De/ | 233.50K | +205.9% | $21.19M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 96 | Bank Of America Corp /De/ | 233.50K | +205.9% | $21.19M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 97 | Bank Of America Corp /De/ | 233.50K | +205.9% | $21.19M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 98 | Bank Of America Corp /De/ | 233.50K | +205.9% | $21.19M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 99 | Bank Of America Corp /De/ | 233.50K | +205.9% | $21.19M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 100 | Loomis Sayles & Co L P | 219.96K | -4.0% | $19.96M | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Assenagon Asset Management… | $39.89M | 0.0% |
| Assenagon Asset Management… | $39.89M | 0.0% |
Exited
| Tudor Investment Corp Et Al | $2.82M | was 0.0% |
| Man Group plc | $335,316 | was 0.0% |
| Group One Trading Llc | $21,508 | was 0.0% |
| Northwestern Mutual Wealth… | $7,269 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 259 holders, 31.26M shares, $1.65B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Aug 14
SC 13G/A — T. Rowe Price Investment Management…
Aug 14
SC 13G/A — AMERICAN CENTURY INVESTMENT MANAGEMENT…
Aug 06
SC 13G/A — FMR LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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