INNOSPEC INC (IOSP): Institutional Ownership
Hedge funds and institutional managers reporting a position in IOSP · Materials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
18
13F filers
Aggregate Value
$108.9M
Across holders
Last Price
$82.63
2026-06-26
Sector
Materials
GICS
Holder activity8 new6 added4 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 593K | $43.3M | 39.8% | 0.0% | Added | +$31.7M | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 407K | $29.7M | 27.3% | 0.0% | Added | +$6.3M | Q1 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 119K | $8.7M | 8.0% | 0.0% | Reduced | $-102K | Q1 2026 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 104K | $8.0M | 7.3% | 0.0% | New | — | Q4 2025 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 101K | $7.4M | 6.8% | 0.0% | Added | +$5.6M | Q1 2026 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 27K | $2.0M | 1.9% | 0.0% | New | — | Q4 2025 |
| Holocene Advisors, LP CIK 0001700574 | Hedge Fund | 26K | $1.9M | 1.8% | 0.0% | Added | +$542K | Q1 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 26K | $1.9M | 1.8% | 0.0% | Added | +$626K | Q1 2026 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 24K | $1.8M | 1.6% | 0.0% | Added | +$801K | Q1 2026 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 18K | $1.3M | 1.2% | 0.0% | New | — | Q4 2025 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 11K | $849K | 0.8% | 0.0% | New | — | Q3 2025 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 8K | $560K | 0.5% | 0.0% | New | — | Q1 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 6K | $434K | 0.4% | 0.0% | New | — | Q1 2026 |
| CAXTON ASSOCIATES LLP CIK 0002051323 | Hedge Fund | 5K | $345K | 0.3% | 0.0% | New | — | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 5K | $331K | 0.3% | 0.0% | Reduced | $-324K | Q1 2026 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 4K | $276K | 0.3% | 0.0% | New | — | Q1 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 484 | $35K | 0.0% | 0.0% | Reduced | $-2K | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 260 | $19K | 0.0% | 0.0% | Reduced | $-39K | Q1 2026 |
Added
Hedge Fund
$43.3M· 39.8% of total· 0.0% port· 593K sh· +$31.7M QoQ· Q1 2026
Added
Hedge Fund
$29.7M· 27.3% of total· 0.0% port· 407K sh· +$6.3M QoQ· Q1 2026
Reduced
Hedge Fund
$8.7M· 8.0% of total· 0.0% port· 119K sh· $-102K QoQ· Q1 2026
New
Hedge Fund
$8.0M· 7.3% of total· 0.0% port· 104K sh· — QoQ· Q4 2025
Added
Hedge Fund
$7.4M· 6.8% of total· 0.0% port· 101K sh· +$5.6M QoQ· Q1 2026
New
Hedge Fund
$2.0M· 1.9% of total· 0.0% port· 27K sh· — QoQ· Q4 2025
Added
Hedge Fund
$1.9M· 1.8% of total· 0.0% port· 26K sh· +$542K QoQ· Q1 2026
Added
Hedge Fund
$1.9M· 1.8% of total· 0.0% port· 26K sh· +$626K QoQ· Q1 2026
Added
Hedge Fund
$1.8M· 1.6% of total· 0.0% port· 24K sh· +$801K QoQ· Q1 2026
New
Hedge Fund
$1.3M· 1.2% of total· 0.0% port· 18K sh· — QoQ· Q4 2025
New
Hedge Fund
$849K· 0.8% of total· 0.0% port· 11K sh· — QoQ· Q3 2025
New
Hedge Fund
$560K· 0.5% of total· 0.0% port· 8K sh· — QoQ· Q1 2026
New
Hedge Fund
$434K· 0.4% of total· 0.0% port· 6K sh· — QoQ· Q1 2026
New
Hedge Fund
$345K· 0.3% of total· 0.0% port· 5K sh· — QoQ· Q1 2026
Reduced
Hedge Fund
$331K· 0.3% of total· 0.0% port· 5K sh· $-324K QoQ· Q1 2026
New
Hedge Fund
$276K· 0.3% of total· 0.0% port· 4K sh· — QoQ· Q1 2026
Reduced
Hedge Fund
$35K· 0.0% of total· 0.0% port· 484 sh· $-2K QoQ· Q1 2026
Reduced
Hedge Fund
$19K· 0.0% of total· 0.0% port· 260 sh· $-39K QoQ· Q1 2026