IOSP
Innospec Inc. · Basic Materials · Chemicals - Specialty
Momentum inputs (comparable managers):
holder breadth -6.7% ·
share flow +4.3% ·
net new positions -7.1%
· formula
Concentrated accumulation: rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 96 | +1 | 19.35M | $1.58B | +7 | −7 |
| Q1 2026 | 99 | +4 | 19.64M | $1.44B | +8 | −5 |
| Q4 2025 | 96 | +2 | 20.14M | $1.54B | +3 | n/a |
| Q3 2025 | 16 | 0 | 10.85M | $837.11M | n/a | −1 |
| Q2 2025 | 14 | -1 | 9.66M | $812.09M | n/a | −1 |
| Q1 2025 | 12 | 0 | 2.43M | $230.13M | n/a | n/a |
| Q4 2024 | 12 | 0 | 1.96M | $215.50M | n/a | n/a |
| Q3 2024 | 11 | 0 | 935.00K | $105.75M | +1 | −1 |
| Q2 2024 | 11 | n/a | 1.02M | $126.66M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.66M | n/a | $307.97M | 0.0% | n/c | 1 | SEC ↗ ×15 |
| 2 | The Vanguard Group ✦ (passive) | 3.16M | n/a | $265.97M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 3 | State Street Global Advisors ✦ (passive) | 970.23K | -4.1% | $81.59M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 719.60K | +2.0% | $60.52M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 5 | Millennium Management ✦ | 350.00K | +105.4% | $29.43M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 6 | D. E. Shaw & Co. ✦ | 171.74K | +73.3% | $14.44M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 7 | Renaissance Technologies ✦ | 146.60K | +15.5% | $12.33M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 8 | Two Sigma Investments ✦ | 138.24K | +76.2% | $11.62M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | Norges Bank ✦ (passive) | 133.54K | +26.4% | $11.23M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 10 | Citadel Advisors ✦ | 94.58K | +25.9% | $7.95M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 11 | AQR Capital Management ✦ | 72.02K | +403.0% | $6.06M | 0.0% | ▲ Add | 5 | SEC ↗ ×4 |
| 12 | T. Rowe Price ✦ | 22.38K | +7.2% | $1.88M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | Point72 Asset Management ✦ | 11.05K | -29.2% | $929,056 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 14 | Fidelity (FMR) ✦ | 1.99K | n/a | $167,091 | 0.0% | n/c | 1 | SEC ↗ ×2 |
“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
| Gotham Asset Management | $532,211 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 263 holders, 24.51M shares, $1.76B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.