Security record · archived quarter
ERII
Energy Recovery, Inc. · Industrials · Industrial - Pollution & Treatment Controls
13Tracked holders
-2Δ holders
12.94MShares held
$165.36MReported value
+0New positions
−2Exits
Momentum inputs (comparable managers):
holder breadth -13.3% ·
share flow -10.5% ·
net new positions -15.4%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 81 | +2 | 33.13M | $298.77M | +10 | −8 |
| Q1 2026 | 82 | +4 | 32.96M | $331.95M | +11 | −7 |
| Q4 2025 | 78 | 0 | 33.33M | $449.55M | — | — |
| Q3 2025 | 17 | +1 | 15.90M | $245.23M | +1 | — |
| Q2 2025 | 13 | -2 | 12.94M | $165.36M | — | −2 |
| Q1 2025 | 12 | -1 | 5.18M | $82.24M | +1 | −2 |
| Q4 2024 | 13 | +5 | 5.21M | $76.55M | +5 | — |
| Q3 2024 | 7 | -1 | 3.26M | $56.62M | +1 | −2 |
| Q2 2024 | 8 | — | 2.95M | $39.27M | — | — |
Who holds it · Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 5.64M | — | $72.13M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 3.63M | — | $46.33M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 3.63M | — | $46.33M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 3.63M | — | $46.33M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 3.63M | — | $46.33M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | The Vanguard Group ✦ (passive) | 3.63M | — | $46.33M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | State Street Global Advisors ✦ (passive) | 1.46M | +1.9% | $18.65M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 23 | Geode Capital Management ✦ (passive) | 1.29M | -6.9% | $16.53M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 24 | Geode Capital Management ✦ (passive) | 1.29M | -6.9% | $16.53M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 25 | D. E. Shaw & Co. ✦ | 373.69K | +42.3% | $4.78M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 26 | D. E. Shaw & Co. ✦ | 373.69K | +42.3% | $4.78M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 27 | Renaissance Technologies ✦ | 141.10K | -41.6% | $1.80M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 28 | Arrowstreet Capital ✦ | 139.32K | +2.1% | $1.78M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | Millennium Management ✦ | 96.83K | -45.1% | $1.24M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 30 | Marshall Wace ✦ | 50.21K | +6.2% | $641,735 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 31 | Marshall Wace ✦ | 50.21K | +6.2% | $641,735 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 32 | T. Rowe Price ✦ | 42.41K | +2.8% | $543,000 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 33 | Citadel Advisors ✦ | 38.08K | -86.5% | $486,650 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 34 | AQR Capital Management ✦ | 21.27K | +58.9% | $271,857 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 35 | AQR Capital Management ✦ | 21.27K | +58.9% | $271,857 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 36 | AQR Capital Management ✦ | 21.27K | +58.9% | $271,857 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 37 | AQR Capital Management ✦ | 21.27K | +58.9% | $271,857 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 38 | Fidelity (FMR) ✦ | 13.53K | — | $172,868 | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Fidelity (FMR) ✦ | 13.53K | — | $172,868 | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Fidelity (FMR) ✦ | 13.53K | — | $172,868 | 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
| Baillie Gifford | $17.47M | was 0.0% |
| Two Sigma Investments | $849,177 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 195 holders, 44.28M shares, $436.20M 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.
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 2025 ·
Methodology ·
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