Innospec Inc.
IOSP- Exchange
- Nasdaq
- Industry
- Chemicals & Allied Products
- SEC CIK
- 0001054905
No open-market purchases or sales by Innospec Inc. insiders were filed in the last 90 days; 281 institutions reported holding it in 13F filings for Q2 2026, worth $2.00B in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Innospec Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 266
- +8 vs. Q2 2025
- Shares held
- 24.0M
- +54.7K (+0.2%) vs. Q2 2025
- Total value
- $1.85B
- −$170.5M (−8.4%) vs. Q2 2025
- New holders
- 32
- 108 more added
- Sold out
- 24
- 97 more reduced
4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IOSP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 281 | $2.00B |
| Q1 2026 | 266 | $1.82B |
| Q4 2025 | 261 | $1.86B |
| Q3 2025 | 266 | $1.85B |
| Q2 2025 | 262 | $2.03B |
| Q1 2025 | 272 | $2.29B |
| Q4 2024 | 262 | $2.66B |
| Q3 2024 | 261 | $2.73B |
| Q2 2024 | 266 | $2.96B |
| Q1 2024 | 239 | $3.10B |
| Q4 2023 | 223 | $2.96B |
| Q3 2023 | 212 | $2.44B |
| Q2 2023 | 205 | $2.39B |
| Q1 2023 | 219 | $2.45B |
| Q4 2022 | 223 | $2.44B |
| Q3 2022 | 193 | $2.03B |
| Q2 2022 | 199 | $2.29B |
| Q1 2022 | 188 | $2.20B |
| Q4 2021 | 184 | $2.14B |
| Q3 2021 | 188 | $1.97B |
| Q2 2021 | 180 | $2.12B |
| Q1 2021 | 180 | $2.42B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Innospec Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Voya Investment Management LLC | 40,233 | $3.10M | 0.00% | −107,105−72.7% | Reduced |
| Engineers Gate Manager LP | 40,710 | $3.14M | 0.04% | +1,648+4.2% | Added |
| Deutsche Bank AG | 41,030 | $3.17M | 0.00% | +24,635+150.3% | Added |
| Edgestream Partners, L.P. | 41,522 | $3.20M | 0.09% | −5,546−11.8% | Reduced |
| Verition Fund Management LLC | 42,515 | $3.28M | 0.02% | +9,897+30.3% | Added |
| PDT Partners, LLC | 42,876 | $3.31M | 0.21% | +29,433+218.9% | Added |
| Moran Wealth Management, LLC | 44,357 | $3.42M | 0.10% | +1,754+4.1% | Added |
| ZWJ Investment Counsel Inc | 44,830 | $3.46M | 0.12% | +5,410+13.7% | Added |
| Quest Partners LLC | 45,174 | $3.49M | 0.23% | +16,360+56.8% | Added |
| Barclays PLC | 46,341 | $3.58M | 0.00% | −5,169−10.0% | Reduced |
| Swiss National Bank | 48,403 | $3.73M | 0.00% | +400+0.8% | Added |
| ExodusPoint Capital Management, LP | 48,560 | $3.75M | 0.05% | −8,248−14.5% | Reduced |
| BNP Paribas Arbitrage, SA | 52,033 | $4.01M | 0.00% | +32,048+160.4% | Added |
| Ameriprise Financial Inc | 60,015 | $4.63M | 0.00% | −25,262−29.6% | Reduced |
| Teacher Retirement System of Texas | 62,398 | $4.81M | 0.02% | +2,388+4.0% | Added |
| American Century Companies Inc | 62,702 | $4.84M | 0.00% | +6,841+12.2% | Added |
| Legal & General Group Plc | 65,187 | $5.03M | 0.00% | −4,486−6.4% | Reduced |
| SEI Investments Co | 66,521 | $5.13M | 0.01% | +11,049+19.9% | Added |
| Leeward Investments, LLC - MA | 72,124 | $5.57M | 0.28% | −1,610−2.2% | Reduced |
| Rhumbline Advisers | 72,488 | $5.59M | 0.00% | −8,993−11.0% | Reduced |
| Mutual of America Capital Management LLC | 75,695 | $5.84M | 0.06% | −1,560−2.0% | Reduced |
| ProShare Advisors LLC | 77,261 | $5.96M | 0.01% | +2,205+2.9% | Added |
| UBS Asset Management Americas Inc | 77,358 | $5.97M | 0.00% | −47,806−38.2% | Reduced |
| Panagora Asset Management Inc | 79,459 | $6.13M | 0.02% | +301+0.4% | Added |
| Invesco Ltd. | 80,845 | $6.24M | 0.00% | −142,918−63.9% | Reduced |
| Numerai GP LLC | 81,541 | $6.29M | 0.89% | +18,649+29.7% | Added |
| Citadel Advisors LLC | 83,389 | $6.43M | 0.01% | −11,187−11.8% | Reduced |
| HRT Financial LP | 89,537 | $6.91M | 0.03% | +57,295+177.7% | Added |
| Jane Street Group, LLC | 92,766 | $7.16M | 0.01% | −24,433−20.8% | Reduced |
| Public Sector Pension Investment Board | 96,866 | $7.47M | 0.03% | +11,907+14.0% | Added |
| Hotchkis & Wiley Capital Management LLC | 111,506 | $8.60M | 0.03% | +41,271+58.8% | Added |
| Principal Financial Group Inc | 119,935 | $9.25M | 0.00% | −17,281−12.6% | Reduced |
| Voloridge Investment Management, LLC | 126,086 | $9.73M | 0.03% | −34,077−21.3% | Reduced |
| Assenagon Asset Management S.A. | 129,397 | $9.98M | 0.01% | +108,254+512.0% | Added |
| Renaissance Technologies LLC | 146,500 | $11.3M | 0.01% | −100−0.1% | Reduced |
| Two Sigma Investments, LP | 148,205 | $11.4M | 0.02% | +9,966+7.2% | Added |
| Walleye Capital LLC | 150,806 | $11.6M | 0.09% | +110,686+275.9% | Added |
| Cubist Systematic Strategies, LLC | 154,165 | $11.9M | 0.17% | −64,923−29.6% | Reduced |
| Two Sigma Advisers, LP | 158,200 | $12.2M | 0.02% | +77,700+96.5% | Added |
| UBS Group AG | 165,047 | $12.7M | 0.00% | +58,778+55.3% | Added |
| Gendell Jeffrey L | 174,949 | $13.5M | 0.25% | +95,168+119.3% | Added |
| AQR Capital Management LLC | 181,209 | $14.0M | 0.01% | +109,185+151.6% | Added |
| Bank of New York Mellon Corp | 215,185 | $16.6M | 0.00% | −15,822−6.8% | Reduced |
| Medina Singh Partners, LLC | 235,956 | $18.2M | 4.25% | +235,956 | New |
| Morgan Stanley | 253,753 | $19.6M | 0.00% | −10,082−3.8% | Reduced |
| Janus Henderson Group PLC | 258,107 | $19.9M | 0.01% | +2,688+1.1% | Added |
| D. E. Shaw & Co., Inc. | 273,905 | $21.1M | 0.02% | +102,167+59.5% | Added |
| Goldman Sachs Group Inc | 282,643 | $21.8M | 0.00% | +177,972+170.0% | Added |
| Northern Trust Corp | 299,050 | $23.1M | 0.00% | −3,452−1.1% | Reduced |
| JPMorgan Chase & Co | 320,982 | $24.8M | 0.00% | −182−0.1% | Reduced |
| Brown Advisory Inc | 349,972 | $27.0M | 0.04% | −76,572−18.0% | Reduced |
| Qube Research & Technologies Ltd | 354,012 | $27.3M | 0.04% | +47,251+15.4% | Added |
| Charles Schwab Investment Management Inc | 360,590 | $27.8M | 0.00% | +4,413+1.2% | Added |
| Bank of America Corp | 375,331 | $29.0M | 0.00% | +79,833+27.0% | Added |
| Nuveen, LLC | 411,277 | $31.7M | 0.01% | +115,265+38.9% | Added |
| Westwood Holdings Group Inc. | 447,962 | $34.6M | 0.25% | +35,652+8.6% | Added |
| Millennium Management LLC | 481,488 | $37.2M | 0.03% | +131,483+37.6% | Added |
| Royce & Associates LP | 492,614 | $38.0M | 0.38% | −134,888−21.5% | Reduced |
| Geode Capital Management, LLC | 614,212 | $47.4M | 0.00% | −105,386−14.6% | Reduced |
| First Trust Advisors LP | 640,562 | $49.4M | 0.04% | −161,942−20.2% | Reduced |
| Victory Capital Management Inc | 835,895 | $64.5M | 0.04% | −122,591−12.8% | Reduced |
| State Street Corp | 929,123 | $71.7M | 0.00% | −41,102−4.2% | Reduced |
| Dimensional Fund Advisors LP | 1,166,975 | $90.0M | 0.02% | −1,950−0.2% | Reduced |
| Allspring Global Investments Holdings, LLC | 2,391,749 | $183.8M | 0.29% | −91,436−3.7% | Reduced |
| Vanguard Group Inc | 3,143,422 | $242.5M | 0.00% | −19,519−0.6% | Reduced |
| BlackRock, Inc. | 3,632,985 | $280.3M | 0.00% | −29,427−0.8% | Reduced |
| Segall Bryant & Hamill, LLC | 0 | $0 | 0.00% | −118,161−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −70,675−100.0% | Sold out |
| Kirr Marbach & Co LLC | 0 | $0 | 0.00% | −54,335−100.0% | Sold out |
| Nebula Research & Development LLC | 0 | $0 | 0.00% | −28,128−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −26,005−100.0% | Sold out |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −21,900−100.0% | Sold out |
| Pathstone Holdings, LLC | 0 | $0 | 0.00% | −10,509−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −8,039−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −6,751−100.0% | Sold out |
| Burney Co | 0 | $0 | 0.00% | −5,291−100.0% | Sold out |
| Caxton Associates LLP | 0 | $0 | 0.00% | −5,116−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −4,217−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −3,401−100.0% | Sold out |
| HighTower Advisors, LLC | 0 | $0 | 0.00% | −2,895−100.0% | Sold out |
| Sanctuary Advisors, LLC | 0 | $0 | 0.00% | −2,640−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −2,619−100.0% | Sold out |
| Grandfield & Dodd, LLC | 0 | $0 | 0.00% | −2,400−100.0% | Sold out |
| Kestra Investment Management, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −22−100.0% | Sold out |
| Geneos Wealth Management Inc. | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| Larson Financial Group LLC | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| NewSquare Capital LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Huntington National Bank | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Assetmark, Inc | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Norges Bank | – | – | – | – | Not filed |
| CIBC World Markets Corp | – | – | – | – | Not filed |
| First Horizon Advisors, Inc. | – | – | – | – | Not filed |
| Parkworth Wealth Management, Inc. | – | – | – | – | Not filed |