InnospecIOSP
13F holders, Q2 2025 (June 30)262holders −10
30new positions
40sold out
7famous investors
$84.44avg. 13F price*
At the end of Q2 2025, 262 institutions reported holding Innospec Inc. (IOSP) in their 13F filings, down 10 from Q1 2025. 30 opened new positions and 40 sold out. The largest holders were BlackRock, Inc. ($308.0M), Vanguard Group Inc. ($266.0M) and Allspring Global Investments Holdings, LLC ($216.2M). 7 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies'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 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 30 | $26.4M |
| Exits | 40 | $75.0M |
All 13F filers, Q1 2025 → Q2 2025: 2,110,516 shares bought and 2,569,088 shares sold, net −458,572 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 262 holders
| BlackRock, Inc. | 0.01% | Reduce -2.3% | 3,662,412 | $308.0M |
| Vanguard Group Inc. | 0.00% | Reduce -1.5% | 3,162,941 | $266.0M |
| Allspring Global Investments Holdings, LLC | 0.36% | Add +3.3% | 2,483,185 | $216.2M |
| Dimensional Fund Advisors LP | 0.02% | Add +0.9% | 1,168,925 | $98.3M |
| State Street Corp. | 0.00% | Reduce -4.1% | 970,225 | $81.6M |
| Victory Capital Management Inc. | 0.05% | Reduce -13.4% | 958,486 | $80.6M |
| First Trust Advisors LP | 0.05% | Reduce -10.1% | 802,504 | $67.5M |
| Geode Capital Management, LLC | 0.00% | Add +2.0% | 719,598 | $60.5M |
| Royce & Associates LP | 0.54% | Reduce -4.0% | 627,502 | $52.8M |
| Brown Advisory Inc. | 0.05% | Add +29.5% | 426,544 | $35.9M |
| Westwood Holdings Group Inc. | 0.25% | Add +7.8% | 412,310 | $34.7M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +0.4% | 356,177 | $30.0M |
| Millennium Management | 0.03% | Add +105.4% | 350,005 | $29.4M |
| JPMorgan Chase & Co. | 0.00% | Add +17.6% | 321,164 | $27.0M |
| Qube Research & Technologies Ltd | 0.04% | Add +72.1% | 306,761 | $25.8M |
| Northern Trust Corp. | 0.00% | Reduce -5.0% | 302,502 | $25.4M |
| Nuveen, LLC | 0.01% | Reduce -34.7% | 296,012 | $24.9M |
| Bank of America Corp. | 0.00% | Add +21.3% | 295,498 | $24.8M |
| Morgan Stanley | 0.00% | Add +10.3% | 263,835 | $22.2M |
| Janus Henderson Group PLC | 0.01% | Reduce -46.2% | 255,419 | $21.5M |
| Bank of New York Mellon Corp | 0.00% | Add +1.0% | 231,007 | $19.4M |
| Invesco Ltd. | 0.00% | Reduce -10.4% | 223,763 | $18.8M |
| Cubist Systematic Strategies, LLC | 0.20% | Add +68.0% | 219,088 | $18.4M |
| D. E. Shaw & Co. | 0.02% | Add +73.3% | 171,738 | $14.4M |
| Voloridge Investment Management, LLC | 0.05% | Reduce -15.6% | 160,163 | $13.5M |
| Voya Investment Management LLC | 0.01% | Reduce -55.0% | 147,338 | $12.4M |
| Renaissance Technologies | 0.02% | Add +15.5% | 146,600 | $12.3M |
| Two Sigma Investments, LP | 0.02% | Add +76.2% | 138,239 | $11.6M |
| Principal Financial Group Inc. | 0.01% | Add +3.6% | 137,216 | $11.5M |
| Norges Bank | 0.00% | Add +26.4% | 133,545 | $11.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +23.0% | 125,164 | $10.5M |
| Segall Bryant & Hamill, LLC | 0.14% | Add +20.6% | 118,161 | $9.9M |
| Jane Street Group, LLC | 0.02% | Add +23.1% | 117,199 | $9.9M |
| UBS Group AG | 0.00% | Add +29.8% | 106,269 | $8.9M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -20.9% | 104,671 | $8.8M |
| Citadel Advisors | 0.01% | Add +25.9% | 94,576 | $8.0M |
| Ameriprise Financial Inc. | 0.00% | Add +29.0% | 85,277 | $7.2M |
| Public Sector Pension Investment Board | 0.03% | Add +7.4% | 84,959 | $7.1M |
| Rhumbline Advisers | 0.01% | Add +4.8% | 81,481 | $6.9M |
| Two Sigma Advisers, LP | 0.01% | Add +110.2% | 80,500 | $6.8M |
| Gendell Jeffrey L | 0.18% | Add +3.3% | 79,781 | $6.7M |
| Panagora Asset Management Inc. | 0.03% | Add +0.1% | 79,158 | $6.7M |
| Mutual of America Capital Management LLC | 0.07% | Add +2026.5% | 77,255 | $6.5M |
| ProShare Advisors LLC | 0.01% | Add +1178.4% | 75,056 | $6.3M |
| Leeward Investments, LLC - MA | 0.33% | Reduce -3.5% | 73,734 | $6.2M |
| AQR Capital Management | 0.01% | Add +403.0% | 72,024 | $6.1M |
| Raymond James Financial Inc. | 0.00% | Reduce -62.3% | 70,675 | $5.9M |
| Hotchkis & Wiley Capital Management LLC | 0.02% | Add +16.0% | 70,235 | $5.9M |
| Legal & General Group Plc | 0.00% | Add +1.4% | 69,673 | $5.9M |
| Numerai GP LLC | 0.76% | New | 62,892 | $5.3M |
| Teacher Retirement System of Texas | 0.02% | Add +867.8% | 60,010 | $5.0M |
| Trexquant Investment LP | 0.06% | Reduce -1.5% | 59,424 | $5.0M |
| ExodusPoint Capital Management, LP | 0.06% | Add +418.2% | 56,808 | $4.8M |
| American Century Companies Inc. | 0.00% | Add +17.5% | 55,861 | $4.7M |
| Sei Investments Co. | 0.01% | Add +14.1% | 55,472 | $4.7M |
| Kirr Marbach & Co. LLC | 0.90% | Reduce -31.3% | 54,335 | $4.6M |
| Barclays PLC | 0.00% | Add +41.2% | 51,510 | $4.3M |
| SG Americas Securities, LLC | 0.02% | Add +1877.6% | 50,924 | $4.3M |
| Wells Fargo & Company | 0.00% | Reduce -9.3% | 48,246 | $4.1M |
| Swiss National Bank | 0.00% | Reduce -0.6% | 48,003 | $4.0M |
| Balyasny Asset Management L.P. | 0.01% | Add +31.2% | 47,239 | $4.0M |
| Edgestream Partners, L.P. | 0.11% | Reduce -32.8% | 47,068 | $4.0M |
| Moran Wealth Management, LLC | 0.11% | Reduce -5.4% | 42,603 | $3.6M |
| Y-Intercept (Hong Kong) Ltd | 0.08% | New | 41,245 | $3.5M |
| Walleye Capital LLC | 0.03% | Add +324.5% | 40,120 | $3.4M |
| ZWJ Investment Counsel Inc. | 0.12% | Reduce -14.9% | 39,420 | $3.3M |
| Engineers Gate Manager LP | 0.04% | Add +25.1% | 39,062 | $3.3M |
| Susquehanna International Group, LLP | 0.00% | Add +7.5% | 36,861 | $3.1M |
| Prudential Financial Inc. | 0.00% | Add +6.8% | 26,049 | $3.0M |
| Thrivent Financial for Lutherans | 0.01% | Reduce -2.0% | 35,757 | $3.0M |
| Verition Fund Management LLC | 0.02% | Add +129.6% | 32,618 | $2.7M |
| Twinbeech Capital LP | 0.06% | New | 32,249 | $2.7M |
| HRT Financial LP | 0.01% | Add +68.0% | 32,242 | $2.7M |
| Quantbot Technologies LP | 0.07% | Add +94.1% | 31,052 | $2.6M |
| Algert Global LLC | 0.05% | Add +5.9% | 30,548 | $2.6M |
| Schonfeld Strategic Advisors LLC | 0.02% | Add +247.9% | 29,431 | $2.5M |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +1.0% | 29,268 | $2.5M |
| Dark Forest Capital Management LP | 0.10% | New | 29,197 | $2.5M |
| Ingalls & Snyder LLC | 0.09% | No change | 28,927 | $2.4M |
| AlphaQuest LLC | 0.24% | Add +871.1% | 28,814 | $2.4M |
| Citigroup Inc. | 0.00% | Reduce -32.0% | 28,291 | $2.4M |
| Nebula Research & Development LLC | 0.20% | Add +15.8% | 28,128 | $2.4M |
| Franklin Resources Inc. | 0.00% | Add +2.5% | 27,672 | $2.3M |
| Alliancebernstein L.P. | 0.00% | Reduce -4.0% | 27,223 | $2.3M |
| Bahl & Gaynor LLC | 0.01% | Reduce -14.1% | 26,575 | $2.2M |
| Campbell & CO Investment Adviser LLC | 0.14% | Add +494.3% | 26,005 | $2.2M |
| California State Teachers Retirement System | 0.00% | Add +0.8% | 23,062 | $1.9M |
| Tudor Investment Corporation | 0.01% | Add +71.0% | 22,773 | $1.9M |
| T. Rowe Price Associates Inc. | 0.00% | Add +7.2% | 22,381 | $1.9M |
| Jacobs Levy Equity Management, Inc. | 0.01% | Reduce -15.8% | 22,056 | $1.9M |
| Bridgeway Capital Management, LLC | 0.04% | Reduce -50.0% | 21,900 | $1.8M |
| State of New Jersey Common Pension Fund D | 0.01% | Add +15.3% | 21,862 | $1.8M |
| Connors Investor Services Inc. | 0.16% | Reduce -0.2% | 21,566 | $1.8M |
| Assenagon Asset Management S.A. | 0.00% | New | 21,143 | $1.8M |
| Intech Investment Management LLC | 0.02% | Reduce -4.8% | 20,969 | $1.8M |
| Huber Capital Management LLC | 0.29% | Reduce -70.8% | 20,148 | $1.7M |
| BNP Paribas Financial Markets | 0.00% | Add +268.1% | 19,985 | $1.7M |
| Holocene Advisors, LP | 0.00% | Add +151.6% | 19,441 | $1.6M |
| Gsa Capital Partners LLP | 0.11% | New | 19,300 | $1.6M |
| Occudo Quantitative Strategies LP | 0.18% | Reduce -7.4% | 19,109 | $1.6M |
"% of holder's portfolio" is IOSP's weight in each manager's 13F, not the share of Innospec Inc. the manager owns.