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, Q4 2025
Institutional positions in Innospec Inc. as of Dec 31, 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
- 261
- +1 vs. Q3 2025
- Shares held
- 24.3M
- +496.4K (+2.1%) vs. Q3 2025
- Total value
- $1.86B
- +$23.6M (+1.3%) vs. Q3 2025
- New holders
- 31
- 104 more added
- Sold out
- 30
- 92 more reduced
6 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Innospec Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| LPL Financial LLC | 5,077 | $388.6K | 0.00% | −1,769−25.8% | Reduced |
| Amundi | 5,189 | $397.2K | 0.00% | +699+15.6% | Added |
| KLP Kapitalforvaltning AS | 5,300 | $405.7K | 0.00% | +300+6.0% | Added |
| Ethic Inc. | 5,351 | $409.6K | 0.01% | +5,351 | New |
| Guggenheim Capital LLC | 5,589 | $427.8K | 0.00% | +22+0.4% | Added |
| Oregon Public Employees Retirement Fund | 5,631 | $431.0K | 0.01% | 00.0% | Unchanged |
| Man Group plc | 5,717 | $437.6K | 0.00% | +799+16.2% | Added |
| R Squared Ltd | 5,883 | $450.3K | 0.21% | +42+0.7% | Added |
| Quadrature Capital Ltd | 5,955 | $455.8K | 0.00% | +5,955 | New |
| Keybank National Association | 6,001 | $459.3K | 0.00% | +1,386+30.0% | Added |
| CWM Advisors, LLC | 6,086 | $465.8K | 0.04% | +214+3.6% | Added |
| Susquehanna International Group, LLP | 6,123 | $468.7K | 0.00% | −3,556−36.7% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 6,134 | $469.5K | 0.00% | −190−3.0% | Reduced |
| Teachers Retirement System of the State of Kentucky | 6,230 | $476.0K | 0.00% | −852−12.0% | Reduced |
| Arrowstreet Capital, Limited Partnership | 6,238 | $477.5K | 0.00% | +6,238 | New |
| GWM Advisors LLC | 6,511 | $498.4K | 0.00% | +1,148+21.4% | Added |
| State Board of Administration of Florida Retirement System | 6,727 | $514.9K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 6,885 | $527.0K | 0.00% | −488−6.6% | Reduced |
| Yousif Capital Management, LLC | 6,713 | $532.0K | 0.01% | −981−12.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 6,951 | $532.0K | 0.00% | +20.0% | Added |
| Amalgamated Bank | 7,215 | $552.0K | 0.00% | −8−0.1% | Reduced |
| Quantinno Capital Management LP | 7,297 | $558.6K | 0.00% | −2,517−25.6% | Reduced |
| Mercer Global Advisors Inc | 7,535 | $576.7K | 0.00% | +1,226+19.4% | Added |
| New York State Teachers Retirement System | 7,962 | $609.0K | 0.00% | 00.0% | Unchanged |
| Skopos Labs, Inc. | 7,847 | $616.5K | 0.03% | +7,847 | New |
| Vident Advisory, LLC | 8,503 | $650.8K | 0.01% | +8,503 | New |
| Inceptionr LLC | 8,582 | $656.9K | 0.18% | +5,307+162.0% | Added |
| New York State Common Retirement Fund | 8,911 | $682.0K | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 9,228 | $706.3K | 0.00% | +9,228 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,465 | $724.5K | 0.00% | +2,816+42.4% | Added |
| Wealth Enhancement Advisory Services, LLC | 9,223 | $725.0K | 0.00% | +1,892+25.8% | Added |
| Aquatic Capital Management LLC | 9,659 | $739.3K | 0.02% | +901+10.3% | Added |
| XTX Topco Ltd | 9,737 | $745.3K | 0.02% | +9,737 | New |
| James Investment Research Inc | 9,949 | $761.5K | 0.08% | 00.0% | Unchanged |
| Legato Capital Management LLC | 10,049 | $769.1K | 0.07% | +10,049 | New |
| CWM, LLC | 10,452 | $800.0K | 0.00% | +280+2.8% | Added |
| EntryPoint Capital, LLC | 10,685 | $817.8K | 0.32% | 00.0% | Unchanged |
| QSV Equity Investors LLC | 10,694 | $818.5K | 1.21% | −1,471−12.1% | Reduced |
| State of Tennessee, Treasury Department | 10,163 | $830.5K | 0.00% | −4,403−30.2% | Reduced |
| Comerica Bank | 11,236 | $860.0K | 0.00% | −602−5.1% | Reduced |
| Capstone Investment Advisors, LLC | 11,352 | $868.9K | 0.01% | +4,560+67.1% | Added |
| Linden Thomas Advisory Services, LLC | 11,361 | $869.6K | 0.09% | −411−3.5% | Reduced |
| Louisiana State Employees Retirement System | 11,400 | $872.6K | 0.01% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 11,555 | $884.4K | 0.00% | −119−1.0% | Reduced |
| Manufacturers Life Insurance Company, The | 11,594 | $887.4K | 0.00% | −784−6.3% | Reduced |
| Jacobs Levy Equity Management, Inc | 11,622 | $889.5K | 0.00% | −1,467−11.2% | Reduced |
| Russell Investments Group, Ltd. | 11,628 | $890.0K | 0.00% | +4,514+63.5% | Added |
| Round Hill Asset Management | 11,974 | $916.5K | 0.58% | 00.0% | Unchanged |
| First Trust Advisors LP | 12,276 | $939.6K | 0.00% | −628,286−98.1% | Reduced |
| Illinois Municipal Retirement Fund | 12,767 | $977.2K | 0.01% | −1,018−7.4% | Reduced |
| Brevan Howard Capital Management LP | 13,462 | $1.03M | 0.02% | −4,722−26.0% | Reduced |
| Freestone Grove Partners LP | 13,475 | $1.03M | 0.01% | +4,198+45.3% | Added |
| State of Alaska, Department of Revenue | 13,747 | $1.05M | 0.01% | +120+0.9% | Added |
| BNP Paribas Arbitrage, SA | 14,005 | $1.07M | 0.00% | −38,028−73.1% | Reduced |
| Acadian Asset Management LLC | 14,159 | $1.08M | 0.00% | −13,155−48.2% | Reduced |
| MetLife Investment Management | 14,256 | $1.09M | 0.01% | −633−4.3% | Reduced |
| HSBC Holdings PLC | 14,847 | $1.14M | 0.00% | −184−1.2% | Reduced |
| Entropy Technologies, LP | 14,979 | $1.15M | 0.06% | +5,800+63.2% | Added |
| Mariner, LLC | 15,683 | $1.21M | 0.00% | +10,121+182.0% | Added |
| Thrivent Financial for Lutherans | 17,026 | $1.30M | 0.00% | −889−5.0% | Reduced |
| Gsa Capital Partners LLP | 17,422 | $1.33M | 0.11% | −10,852−38.4% | Reduced |
| ExodusPoint Capital Management, LP | 17,622 | $1.35M | 0.02% | −30,938−63.7% | Reduced |
| Schonfeld Strategic Advisors LLC | 17,677 | $1.35M | 0.01% | −7,587−30.0% | Reduced |
| Citigroup Inc | 17,713 | $1.36M | 0.00% | −4,538−20.4% | Reduced |
| Holocene Advisors, LP | 19,045 | $1.46M | 0.00% | −5,485−22.4% | Reduced |
| Cerity Partners LLC | 19,309 | $1.48M | 0.00% | −1,733−8.2% | Reduced |
| Deutsche Bank AG | 19,665 | $1.51M | 0.00% | −21,365−52.1% | Reduced |
| Wedge Capital Management L L P | 19,699 | $1.51M | 0.03% | +3,354+20.5% | Added |
| CM Management, LLC | 20,000 | $1.53M | 1.29% | +8,000+66.7% | Added |
| Public Employees Retirement System of Ohio | 20,136 | $1.54M | 0.00% | +2,802+16.2% | Added |
| Great West Life Assurance Co | 21,279 | $1.63M | 0.00% | −8,352−28.2% | Reduced |
| Capital Fund Management S.A. | 21,877 | $1.67M | 0.02% | +9,294+73.9% | Added |
| Jain Global LLC | 22,159 | $1.70M | 0.02% | +22,159 | New |
| Jump Financial, LLC | 22,300 | $1.71M | 0.02% | −5,589−20.0% | Reduced |
| Huber Capital Management LLC | 22,548 | $1.73M | 0.25% | 00.0% | Unchanged |
| Atom Investors LP | 22,830 | $1.75M | 0.14% | +19,405+566.6% | Added |
| Prudential Financial Inc | 23,464 | $1.80M | 0.00% | −1,695−6.7% | Reduced |
| California State Teachers Retirement System | 23,800 | $1.82M | 0.00% | +737+3.2% | Added |
| Y-Intercept (Hong Kong) Ltd | 24,614 | $1.88M | 0.04% | −5,538−18.4% | Reduced |
| Voya Investment Management LLC | 25,264 | $1.93M | 0.00% | −14,969−37.2% | Reduced |
| Canada Pension Plan Investment Board | 26,000 | $1.99M | 0.00% | 00.0% | Unchanged |
| Verition Fund Management LLC | 26,664 | $2.04M | 0.01% | −15,851−37.3% | Reduced |
| Alliancebernstein L.P. | 26,923 | $2.06M | 0.00% | −300−1.1% | Reduced |
| Price T Rowe Associates Inc | 28,383 | $2.17M | 0.00% | +5,021+21.5% | Added |
| Franklin Resources Inc | 28,511 | $2.18M | 0.00% | +643+2.3% | Added |
| Ingalls & Snyder LLC | 28,927 | $2.21M | 0.08% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 30,314 | $2.32M | 0.01% | +4,989+19.7% | Added |
| Connors Investor Services Inc | 32,525 | $2.49M | 0.21% | −1,148−3.4% | Reduced |
| Algert Global LLC | 34,278 | $2.62M | 0.04% | −450−1.3% | Reduced |
| Wells Fargo & Company | 35,091 | $2.69M | 0.00% | +1,200+3.5% | Added |
| FMR LLC | 36,921 | $2.83M | 0.00% | +35,915+3,570.1% | Added |
| Ieq Capital, LLC | 39,774 | $3.04M | 0.01% | +13,384+50.7% | Added |
| Moran Wealth Management, LLC | 42,035 | $3.22M | 0.10% | −2,322−5.2% | Reduced |
| Quest Partners LLC | 42,228 | $3.23M | 0.18% | −2,946−6.5% | Reduced |
| PDT Partners, LLC | 42,876 | $3.28M | 0.21% | 00.0% | Unchanged |
| Dark Forest Capital Management LP | 44,524 | $3.41M | 0.16% | +10,726+31.7% | Added |
| Creative Planning | 44,693 | $3.42M | 0.00% | +31,062+227.9% | Added |
| Barclays PLC | 45,848 | $3.51M | 0.00% | −493−1.1% | Reduced |
| Trexquant Investment LP | 46,073 | $3.53M | 0.03% | +20,407+79.5% | Added |
| Edgestream Partners, L.P. | 46,434 | $3.55M | 0.10% | +4,912+11.8% | Added |