Security record · archived quarter
CECO
CECO Environmental Corp. · Industrials · Industrial - Pollution & Treatment Controls
15Tracked holders
0Δ holders
9.38MShares held
$480.39MReported value
+1New positions
−1Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +3.8% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 102 | +15 | 31.31M | $2.84B | +19 | −5 |
| 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 · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 2.23M | -0.3% | $114.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | Fidelity (FMR) ✦ | 2.12M | -2.5% | $108.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | Fidelity (FMR) ✦ | 2.12M | -2.5% | $108.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | Fidelity (FMR) ✦ | 2.12M | -2.5% | $108.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | Fidelity (FMR) ✦ | 2.12M | -2.5% | $108.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 1.77M | +0.9% | $90.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 1.77M | +0.9% | $90.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 1.77M | +0.9% | $90.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 1.77M | +0.9% | $90.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | The Vanguard Group ✦ (passive) | 1.77M | +0.9% | $90.66M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 22 | Wellington Management ✦ | 746.47K | -17.2% | $38.22M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 23 | Wellington Management ✦ | 746.47K | -17.2% | $38.22M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 24 | Wellington Management ✦ | 746.47K | -17.2% | $38.22M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 25 | Geode Capital Management ✦ (passive) | 720.97K | +1.2% | $36.92M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 26 | Geode Capital Management ✦ (passive) | 720.97K | +1.2% | $36.92M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 27 | State Street Global Advisors ✦ (passive) | 649.71K | -1.2% | $33.27M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 28 | Citadel Advisors ✦ | 343.55K | +174.5% | $17.59M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 29 | Citadel Advisors ✦ | 343.55K | +174.5% | $17.59M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 30 | Two Sigma Investments ✦ | 302.69K | +3620.8% | $15.50M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 31 | Morgan Stanley ✦ | 213.24K | — | $10.92M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Morgan Stanley ✦ | 213.24K | — | $10.92M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Morgan Stanley ✦ | 213.24K | — | $10.92M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Morgan Stanley ✦ | 213.24K | — | $10.92M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Morgan Stanley ✦ | 213.24K | — | $10.92M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Morgan Stanley ✦ | 213.24K | — | $10.92M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Millennium Management ✦ | 109.83K | +4.8% | $5.62M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 38 | Goldman Sachs Group ✦ | 55.08K | — | $2.82M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Goldman Sachs Group ✦ | 55.08K | — | $2.82M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | JPMorgan Chase ✦ | 47.12K | — | $2.41M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | JPMorgan Chase ✦ | 47.12K | — | $2.41M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | JPMorgan Chase ✦ | 47.12K | — | $2.41M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | JPMorgan Chase ✦ | 47.12K | — | $2.41M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | JPMorgan Chase ✦ | 47.12K | — | $2.41M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | JPMorgan Chase ✦ | 47.12K | — | $2.41M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | JPMorgan Chase ✦ | 47.12K | — | $2.41M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | JPMorgan Chase ✦ | 47.12K | — | $2.41M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | JPMorgan Chase ✦ | 47.12K | — | $2.41M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | JPMorgan Chase ✦ | 47.12K | — | $2.41M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Marshall Wace ✦ | 35.00K | New | $1.79M | 0.0% | New | 1 | SEC ↗ |
| 51 | AQR Capital Management ✦ | 16.48K | +11.3% | $843,879 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 52 | AQR Capital Management ✦ | 16.48K | +11.3% | $843,879 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 53 | AQR Capital Management ✦ | 16.48K | +11.3% | $843,879 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 54 | AQR Capital Management ✦ | 16.48K | +11.3% | $843,879 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 55 | AQR Capital Management ✦ | 16.48K | +11.3% | $843,879 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 56 | T. Rowe Price ✦ | 15.88K | +7.4% | $813,000 | 0.0% | ▲ Add | 6 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $1.79M | 0.0% |
Exited
| D. E. Shaw & Co. | $307,135 | 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: Q3 2025 ·
Methodology ·
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