Security record · archived quarter
CECO
CECO Environmental Corp. · Industrials · Industrial - Pollution & Treatment Controls
9Tracked holders
n/aΔ holders
1.99MShares held
$57.31MReported value
+0New positions
−0Exits
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 2 | 0 | 171.59K | $9.94M | n/a | n/a |
| 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 | n/a |
| Q3 2025 | 15 | 0 | 9.38M | $480.39M | +1 | −1 |
| Q2 2025 | 12 | -1 | 8.72M | $246.85M | n/a | −1 |
| Q1 2025 | 10 | +1 | 2.07M | $47.10M | +1 | n/a |
| Q4 2024 | 9 | +1 | 1.90M | $57.49M | +1 | n/a |
| Q3 2024 | 7 | -2 | 1.68M | $47.38M | n/a | −2 |
| Q2 2024 | 9 | n/a | 1.99M | $57.31M | n/a | n/a |
Who holds it · Q2 2024
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 677.63K | n/a | $19.55M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 2 | Wellington Management ✦ | 505.55K | n/a | $14.59M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Arrowstreet Capital ✦ | 442.02K | n/a | $12.75M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Two Sigma Investments ✦ | 156.99K | n/a | $4.53M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | AQR Capital Management ✦ | 124.67K | n/a | $3.60M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 6 | Millennium Management ✦ | 59.25K | n/a | $1.71M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | D. E. Shaw & Co. ✦ | 11.14K | n/a | $321,360 | 0.0% | n/c | 1 | SEC ↗ |
| 8 | T. Rowe Price ✦ | 9.23K | n/a | $267,000 | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Citadel Advisors ✦ | 2 | n/a | $58 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
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 2024 ·
Methodology ·
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