InnospecIOSP
13F holders, Q2 2026 (June 30)281holders +15
42new positions
27sold out
6famous investors
$81.40avg. 13F price*
At the end of Q2 2026, 281 institutions reported holding Innospec Inc. (IOSP) in their 13F filings, up 15 from Q1 2026. 42 opened new positions and 27 sold out. The largest holders were BlackRock, Inc. ($356.6M), Allspring Global Investments Holdings, LLC ($154.7M) and Vanguard Portfolio Management LLC ($153.4M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Innospec Inc.
- CUSIP
- 45768S105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 42 | $30.2M |
| Exits | 27 | $25.3M |
All 13F filers, Q1 2026 → Q2 2026: 2,477,729 shares bought and 2,789,420 shares sold, net −311,691 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 281 holders
| BlackRock, Inc. | 0.01% | Add +12.9% | 4,381,323 | $356.6M |
| Allspring Global Investments Holdings, LLC | 0.24% | Reduce -18.3% | 1,892,471 | $154.7M |
| Vanguard Portfolio Management LLC | 0.01% | Add +1.3% | 1,884,244 | $153.4M |
| Dimensional Fund Advisors LP | 0.02% | Add +5.1% | 1,305,038 | $106.2M |
| Vanguard Capital Management LLC | 0.00% | Reduce -0.6% | 1,108,107 | $90.2M |
| State Street Corp. | 0.00% | Add +3.3% | 996,027 | $81.1M |
| Nuveen, LLC | 0.01% | Add +17.5% | 755,723 | $61.5M |
| Geode Capital Management, LLC | 0.00% | Add +5.7% | 666,589 | $54.3M |
| Goldman Sachs Group Inc. | 0.01% | Add +34.6% | 662,210 | $53.9M |
| Victory Capital Management Inc. | 0.03% | Reduce -23.7% | 660,110 | $53.7M |
| Two Sigma Investments, LP | 0.04% | Reduce -4.1% | 568,709 | $46.3M |
| AQR Capital Management | 0.01% | Add +54.6% | 482,545 | $39.3M |
| Brown Advisory Inc. | 0.05% | Add +37.8% | 408,468 | $33.2M |
| JPMorgan Chase & Co. | 0.00% | Reduce -13.0% | 370,574 | $30.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -2.8% | 355,658 | $28.9M |
| Gendell Jeffrey L | 0.24% | Add +10.2% | 324,504 | $26.4M |
| Royce & Associates LP | 0.20% | Add +18.1% | 308,726 | $25.1M |
| Northern Trust Corp. | 0.00% | Add +6.6% | 303,044 | $24.7M |
| Qube Research & Technologies Ltd | 0.03% | Reduce -29.7% | 285,849 | $23.3M |
| Acadian Asset Management LLC | 0.03% | Add +123.6% | 273,999 | $22.3M |
| Assenagon Asset Management S.A. | 0.03% | Reduce -44.4% | 272,782 | $22.2M |
| Western Standard LLC | 6.53% | Add +4.4% | 236,833 | $19.3M |
| Bank of America Corp. | 0.00% | Reduce -18.9% | 235,742 | $19.2M |
| Morgan Stanley | 0.00% | Reduce -2.0% | 230,793 | $18.8M |
| Renaissance Technologies | 0.02% | Add +55.6% | 185,000 | $15.1M |
| Panagora Asset Management Inc. | 0.05% | Add +52.5% | 182,538 | $14.9M |
| D. E. Shaw & Co. | 0.01% | Reduce -42.2% | 165,746 | $13.5M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +1.8% | 163,715 | $13.3M |
| Sei Investments Co. | 0.01% | Reduce -10.4% | 156,051 | $12.7M |
| UBS Group AG | 0.00% | Reduce -72.8% | 154,001 | $12.5M |
| First Wilshire Securities Management Inc. | 2.47% | Reduce -0.7% | 147,112 | $12.0M |
| Mackenzie Financial Corp. | 0.01% | New | 144,677 | $11.8M |
| Bank of New York Mellon Corp | 0.00% | Add +4.5% | 137,261 | $11.2M |
| Hotchkis & Wiley Capital Management LLC | 0.03% | Add +12.4% | 135,740 | $11.0M |
| Jupiter Topco LLC | 0.00% | — | 127,976 | $10.4M |
| Leeward Investments, LLC - MA | 0.46% | Add +79.5% | 125,308 | $10.2M |
| Principal Financial Group Inc. | 0.00% | Reduce -1.2% | 119,053 | $9.7M |
| Russell Investments Group, Ltd. | 0.01% | Add +65.7% | 118,614 | $9.6M |
| Invesco Ltd. | 0.00% | Add +0.3% | 118,427 | $9.6M |
| ZWJ Investment Counsel Inc. | 0.29% | Add +4.5% | 108,502 | $8.8M |
| Creative Planning | 0.01% | Add +176.9% | 104,224 | $8.5M |
| Citadel Advisors | 0.00% | Reduce -55.4% | 98,549 | $8.0M |
| Deprince Race & Zollo Inc. | 0.13% | Add +37.2% | 93,348 | $7.6M |
| First Trust Advisors LP | 0.00% | Add +617.6% | 91,252 | $7.4M |
| Teacher Retirement System of Texas | 0.02% | Reduce -17.1% | 85,463 | $7.0M |
| Public Sector Pension Investment Board | 0.02% | Reduce -4.6% | 84,577 | $6.9M |
| HRT Financial LP | 0.01% | Reduce -32.5% | 84,349 | $6.9M |
| Mutual of America Capital Management LLC | 0.07% | Reduce -5.2% | 82,920 | $6.7M |
| FMR LLC | 0.00% | Add +59.8% | 82,759 | $6.7M |
| ProShare Advisors LLC | 0.01% | Reduce -9.6% | 81,232 | $6.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -1.3% | 73,457 | $6.0M |
| SG Capital Management LLC | 0.52% | New | 71,022 | $5.8M |
| Numerai GP LLC | 0.45% | Reduce -12.6% | 66,931 | $5.4M |
| Rhumbline Advisers | 0.00% | Reduce -8.6% | 65,055 | $5.3M |
| Trexquant Investment LP | 0.03% | Reduce -22.8% | 60,528 | $4.9M |
| Balyasny Asset Management L.P. | 0.01% | New | 59,751 | $4.9M |
| Legal & General Group Plc | 0.00% | Reduce -0.5% | 58,841 | $4.8M |
| American Century Companies Inc. | 0.00% | Reduce -0.3% | 55,093 | $4.5M |
| Ameriprise Financial Inc. | 0.00% | Reduce -3.6% | 54,517 | $4.4M |
| Swiss National Bank | 0.00% | Add +1.8% | 49,903 | $4.1M |
| Ieq Capital, LLC | 0.02% | Add +13.5% | 45,343 | $3.7M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.01% | Reduce -28.7% | 43,995 | $3.6M |
| Point72 Asset Management | 0.01% | Reduce -74.4% | 42,648 | $3.5M |
| Atom Investors LP | 0.30% | Add +0.2% | 40,870 | $3.3M |
| BNP Paribas Financial Markets | 0.00% | Add +4.1% | 39,514 | $3.2M |
| Dark Forest Capital Management LP | 0.20% | Add +51.5% | 38,862 | $3.2M |
| Franklin Resources Inc. | 0.00% | Add +15.7% | 38,748 | $3.2M |
| Intech Investment Management LLC | 0.03% | Reduce -14.8% | 38,292 | $3.1M |
| SG Americas Securities, LLC | 0.00% | Reduce -38.1% | 37,665 | $3.1M |
| T. Rowe Price Associates Inc. | 0.00% | Add +17.3% | 37,345 | $3.0M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +88.5% | 34,876 | $2.8M |
| CM Management, LLC | 1.65% | Add +33.3% | 32,000 | $2.6M |
| Voloridge Investment Management, LLC | 0.01% | Reduce -70.5% | 31,857 | $2.6M |
| Cerity Partners LLC | 0.00% | Add +39.1% | 31,315 | $2.5M |
| PDT Partners, LLC | 0.13% | Reduce -9.8% | 31,176 | $2.5M |
| Wells Fargo & Company | 0.00% | Add +71.5% | 30,221 | $2.5M |
| Edgestream Partners, L.P. | 0.07% | Reduce -14.7% | 29,208 | $2.4M |
| Huber Capital Management LLC | 0.35% | Add +15.9% | 29,148 | $2.4M |
| Ingalls & Snyder LLC | 0.06% | No change | 28,927 | $2.4M |
| California State Teachers Retirement System | 0.00% | Add +0.9% | 27,765 | $2.3M |
| Deutsche Bank AG | 0.00% | Add +21.2% | 27,565 | $2.2M |
| Mariner, LLC | 0.00% | Add +36.7% | 26,935 | $2.2M |
| Voya Investment Management LLC | 0.00% | Add +3.3% | 25,915 | $2.1M |
| Citigroup Inc. | 0.00% | Add +8.0% | 25,692 | $2.1M |
| Alliancebernstein L.P. | 0.00% | Add +8.0% | 28,622 | $2.1M |
| Prudential Financial Inc. | 0.00% | Add +1.0% | 25,529 | $2.1M |
| Barclays PLC | 0.00% | Add +16.6% | 24,713 | $2.0M |
| ExodusPoint Capital Management, LP | 0.02% | New | 23,810 | $1.9M |
| HSBC Holdings PLC | 0.00% | Reduce -6.5% | 23,693 | $1.9M |
| Holocene Advisors, LP | 0.00% | Reduce -10.3% | 23,760 | $1.9M |
| Moran Wealth Management, LLC | 0.05% | Reduce -12.6% | 23,639 | $1.9M |
| Connors Investor Services Inc. | 0.16% | Reduce -29.4% | 23,363 | $1.9M |
| KLP Kapitalforvaltning As | 0.01% | No change | 23,300 | $1.9M |
| Marshall Wace, LLP | 0.00% | Reduce -31.2% | 23,075 | $1.9M |
| Wedge Capital Management L L P | 0.03% | Reduce -5.3% | 20,329 | $1.7M |
| XTX Topco Ltd | 0.02% | Reduce -44.4% | 20,188 | $1.6M |
| Linden Thomas Advisory Services, LLC | 0.13% | Add +67.8% | 19,815 | $1.6M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | Add +13.2% | 19,560 | $1.6M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -3.9% | 19,508 | $1.6M |
| Blackstone Inc. | 0.01% | New | 19,163 | $1.6M |
"% of holder's portfolio" is IOSP's weight in each manager's 13F, not the share of Innospec Inc. the manager owns.