Security record · archived quarter
IOSP
Innospec Inc. · Basic Materials · Chemicals - Specialty
11Tracked holders
—Δ holders
1.02MShares held
$126.66MReported 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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 97 | +1 | 19.35M | $1.58B | +7 | −6 |
| Q1 2026 | 99 | +4 | 19.64M | $1.44B | +8 | −5 |
| Q4 2025 | 96 | +2 | 20.14M | $1.54B | +3 | — |
| Q3 2025 | 16 | 0 | 10.85M | $837.11M | — | −1 |
| Q2 2025 | 14 | -1 | 9.66M | $812.09M | — | −1 |
| Q1 2025 | 12 | 0 | 2.43M | $230.13M | — | — |
| Q4 2024 | 12 | 0 | 1.96M | $215.50M | — | — |
| Q3 2024 | 11 | 0 | 935.00K | $105.75M | +1 | −1 |
| Q2 2024 | 11 | — | 1.02M | $126.66M | — | — |
Who holds it · Q2 2024
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 652.44K | — | $80.65M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 652.44K | — | $80.65M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Norges Bank ✦ (passive) | 158.63K | — | $19.61M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Millennium Management ✦ | 51.14K | — | $6.32M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | Marshall Wace ✦ | 39.99K | — | $4.94M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | Two Sigma Investments ✦ | 29.98K | — | $3.71M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | AQR Capital Management ✦ | 24.23K | — | $2.99M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | AQR Capital Management ✦ | 24.23K | — | $2.99M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | AQR Capital Management ✦ | 24.23K | — | $2.99M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Citadel Advisors ✦ | 21.93K | — | $2.71M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Citadel Advisors ✦ | 21.93K | — | $2.71M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | T. Rowe Price ✦ | 18.02K | — | $2.23M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Gotham Asset Management ✦ | 11.91K | — | $1.47M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | Renaissance Technologies ✦ | 9.20K | — | $1.14M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | D. E. Shaw & Co. ✦ | 7.22K | — | $892,691 | 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): 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.
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 2024 ·
Methodology ·
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