InnospecIOSP
13F holders, Q1 2025 (March 31)272holders +10
40new positions
32sold out
8famous investors
$93.60avg. 13F price*
At the end of Q1 2025, 272 institutions reported holding Innospec Inc. (IOSP) in their 13F filings, up 10 from Q4 2024. 40 opened new positions and 32 sold out. The largest holders were BlackRock, Inc. ($355.1M), Vanguard Group Inc. ($304.2M) and Allspring Global Investments Holdings, LLC ($227.4M). 8 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium 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 Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 40 | $65.1M |
| Exits | 32 | $91.0M |
All 13F filers, Q4 2024 → Q1 2025: 3,173,453 shares bought and 2,872,869 shares sold, net +300,584 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 272 holders
| BlackRock, Inc. | 0.01% | Reduce -4.1% | 3,747,726 | $355.1M |
| Vanguard Group Inc. | 0.01% | Add +0.9% | 3,210,768 | $304.2M |
| Allspring Global Investments Holdings, LLC | 0.39% | Add +0.8% | 2,404,825 | $227.4M |
| Dimensional Fund Advisors LP | 0.03% | Reduce -0.1% | 1,158,017 | $109.7M |
| Victory Capital Management Inc. | 0.11% | Add +20.0% | 1,106,482 | $104.8M |
| State Street Corp. | 0.00% | Reduce -2.3% | 1,011,441 | $95.8M |
| First Trust Advisors LP | 0.08% | Add +107.5% | 892,153 | $84.5M |
| Geode Capital Management, LLC | 0.01% | Add +1.9% | 705,135 | $66.8M |
| Royce & Associates LP | 0.67% | Reduce -15.9% | 653,636 | $61.9M |
| Wasatch Advisors LP | 0.28% | Reduce -66.6% | 528,144 | $50.0M |
| Janus Henderson Group PLC | 0.02% | Add +1.4% | 474,518 | $45.2M |
| Nuveen, LLC | 0.01% | — | 453,465 | $43.0M |
| Westwood Holdings Group Inc. | 0.28% | Add +28.3% | 382,410 | $36.2M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +0.6% | 354,706 | $33.6M |
| Brown Advisory Inc. | 0.04% | New | 329,415 | $31.2M |
| Voya Investment Management LLC | 0.04% | Add +63.2% | 327,289 | $31.0M |
| Northern Trust Corp. | 0.00% | Reduce -2.8% | 318,306 | $30.2M |
| JPMorgan Chase & Co. | 0.00% | Reduce -12.7% | 273,012 | $25.9M |
| Invesco Ltd. | 0.00% | Reduce -44.7% | 249,877 | $23.7M |
| Bank of America Corp. | 0.00% | Add +4.4% | 243,686 | $23.1M |
| Morgan Stanley | 0.00% | Add +0.6% | 239,195 | $22.7M |
| Bank of New York Mellon Corp | 0.00% | Reduce -3.7% | 228,739 | $21.7M |
| Voloridge Investment Management, LLC | 0.07% | Add +347.0% | 189,786 | $18.0M |
| Raymond James Financial Inc. | 0.01% | Reduce -1.9% | 187,216 | $17.7M |
| Qube Research & Technologies Ltd | 0.03% | Add +91.3% | 178,217 | $16.9M |
| Millennium Management | 0.02% | Add +8176.5% | 170,414 | $16.1M |
| Financial Harvest, LLC | 10.42% | New | 433,843 | $12.6M |
| Principal Financial Group Inc. | 0.01% | Add +2.4% | 132,493 | $12.6M |
| Goldman Sachs Group Inc. | 0.00% | Add +6.4% | 132,399 | $12.5M |
| Cubist Systematic Strategies, LLC | 0.16% | Add +198.8% | 130,427 | $12.4M |
| Renaissance Technologies | 0.02% | Add +2543.8% | 126,900 | $12.0M |
| Norges Bank | 0.00% | Add +2.8% | 105,689 | $10.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +14.3% | 101,773 | $9.6M |
| D. E. Shaw & Co. | 0.01% | Add +160.5% | 99,076 | $9.4M |
| Segall Bryant & Hamill, LLC | 0.14% | Reduce -2.7% | 97,941 | $9.3M |
| Jane Street Group, LLC | 0.02% | Add +1551.5% | 95,243 | $9.0M |
| UBS Group AG | 0.00% | Reduce -3.3% | 81,865 | $7.8M |
| Public Sector Pension Investment Board | 0.03% | Add +27.4% | 79,121 | $7.5M |
| Panagora Asset Management Inc. | 0.04% | Add +0.0% | 79,098 | $7.5M |
| Kirr Marbach & Co. LLC | 1.74% | Add +1.8% | 79,066 | $7.5M |
| Two Sigma Investments, LP | 0.02% | Add +495.6% | 78,446 | $7.4M |
| Rhumbline Advisers | 0.01% | Add +9.3% | 77,760 | $7.4M |
| Gendell Jeffrey L | 0.32% | Reduce -19.0% | 77,247 | $7.3M |
| Leeward Investments, LLC - MA | 0.39% | Reduce -4.5% | 76,439 | $7.2M |
| Citadel Advisors | 0.01% | Add +195.6% | 75,144 | $7.1M |
| Edgestream Partners, L.P. | 0.23% | Add +436.8% | 70,039 | $6.6M |
| Huber Capital Management LLC | 1.23% | Add +40.3% | 68,935 | $6.5M |
| Legal & General Group Plc | 0.00% | Reduce -4.1% | 68,730 | $6.5M |
| Ameriprise Financial Inc. | 0.00% | Reduce -5.0% | 66,087 | $6.3M |
| Hotchkis & Wiley Capital Management LLC | 0.02% | Reduce -1.2% | 60,545 | $5.7M |
| Trexquant Investment LP | 0.07% | Add +196.3% | 60,346 | $5.7M |
| Wells Fargo & Company | 0.00% | Reduce -4.5% | 53,216 | $5.0M |
| Sei Investments Co. | 0.01% | Reduce -65.1% | 48,601 | $4.6M |
| Swiss National Bank | 0.00% | Reduce -1.6% | 48,303 | $4.6M |
| American Century Companies Inc. | 0.00% | Add +27.7% | 47,545 | $4.5M |
| ZWJ Investment Counsel Inc. | 0.18% | Add +6.6% | 46,311 | $4.4M |
| Moran Wealth Management, LLC | 0.14% | Reduce -6.5% | 45,025 | $4.3M |
| Bridgeway Capital Management, LLC | 0.10% | No change | 43,800 | $4.2M |
| Citigroup Inc. | 0.00% | Add +18.2% | 41,577 | $3.9M |
| Two Sigma Advisers, LP | 0.01% | Add +279.2% | 38,300 | $3.6M |
| Thrivent Financial for Lutherans | 0.01% | Reduce -2.6% | 36,499 | $3.5M |
| Barclays PLC | 0.00% | Reduce -20.1% | 36,487 | $3.5M |
| Balyasny Asset Management L.P. | 0.01% | New | 36,001 | $3.4M |
| Susquehanna International Group, LLP | 0.01% | Add +195.0% | 34,303 | $3.3M |
| Engineers Gate Manager LP | 0.05% | Add +828.5% | 31,235 | $3.0M |
| Bahl & Gaynor LLC | 0.01% | Reduce -13.9% | 30,943 | $2.9M |
| Prudential Financial Inc. | 0.00% | Reduce -3.8% | 24,399 | $2.9M |
| Royal Bank of Canada | 0.00% | Reduce -2.5% | 30,267 | $2.9M |
| Burney Co./ | 0.10% | Add +7.3% | 29,445 | $2.8M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -7.2% | 28,975 | $2.7M |
| Ingalls & Snyder LLC | 0.09% | Add +0.2% | 28,927 | $2.7M |
| Algert Global LLC | 0.07% | Reduce -15.7% | 28,858 | $2.7M |
| Alliancebernstein L.P. | 0.00% | No change | 28,353 | $2.7M |
| Envestnet Asset Management Inc. | 0.00% | Add +2.3% | 28,194 | $2.7M |
| Franklin Resources Inc. | 0.00% | Add +0.8% | 26,999 | $2.6M |
| Jacobs Levy Equity Management, Inc. | 0.01% | Reduce -4.3% | 26,192 | $2.5M |
| Nebula Research & Development LLC | 0.21% | Add +108.2% | 24,299 | $2.3M |
| California State Teachers Retirement System | 0.00% | Reduce -1.9% | 22,883 | $2.2M |
| Intech Investment Management LLC | 0.02% | Add +30.7% | 22,023 | $2.1M |
| Connors Investor Services Inc. | 0.20% | Reduce -1.1% | 21,613 | $2.0M |
| T. Rowe Price Associates Inc. | 0.00% | Add +4.3% | 20,873 | $2.0M |
| Occudo Quantitative Strategies LP | 0.26% | Add +333.2% | 20,632 | $2.0M |
| Vest Financial, LLC | 0.03% | New | 20,379 | $1.9M |
| Deutsche Bank AG | 0.00% | Reduce -10.3% | 19,710 | $1.9M |
| HRT Financial LP | 0.01% | New | 19,193 | $1.8M |
| State of New Jersey Common Pension Fund D | 0.01% | Add +5.4% | 18,968 | $1.8M |
| State of Tennessee, Department of Treasury | 0.01% | Add +3.1% | 16,582 | $1.6M |
| Quantbot Technologies LP | 0.05% | New | 15,996 | $1.5M |
| Point72 Asset Management | 0.00% | Add +543.3% | 15,600 | $1.5M |
| Pathstone Holdings, LLC | 0.01% | Reduce -4.0% | 15,342 | $1.5M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.5% | 14,833 | $1.4M |
| MetLife Investment Management, LLC | 0.01% | Reduce -3.3% | 14,730 | $1.4M |
| AQR Capital Management | 0.00% | Reduce -9.8% | 14,318 | $1.4M |
| Verition Fund Management LLC | 0.01% | Add +494.2% | 14,208 | $1.3M |
| State of Alaska, Department of Revenue | 0.01% | Reduce -2.3% | 13,821 | $1.3M |
| Manufacturers Life Insurance Company, The | 0.00% | Add +4.0% | 13,765 | $1.3M |
| Tudor Investment Corporation | 0.01% | New | 13,315 | $1.3M |
| Illinois Municipal Retirement Fund | 0.02% | Reduce -1.6% | 13,218 | $1.3M |
| Cerity Partners LLC | 0.00% | Reduce -0.2% | 13,218 | $1.3M |
| Corebridge Financial, Inc. | 0.01% | Reduce -1.9% | 13,018 | $1.2M |
"% of holder's portfolio" is IOSP's weight in each manager's 13F, not the share of Innospec Inc. the manager owns.