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 |
|---|---|---|---|---|---|
| Gsa Capital Partners LLP | 17,422 | $1.33M | 0.11% | −10,852−38.4% | Reduced |
| Thrivent Financial for Lutherans | 17,026 | $1.30M | 0.00% | −889−5.0% | Reduced |
| Mariner, LLC | 15,683 | $1.21M | 0.00% | +10,121+182.0% | Added |
| Entropy Technologies, LP | 14,979 | $1.15M | 0.06% | +5,800+63.2% | Added |
| HSBC Holdings PLC | 14,847 | $1.14M | 0.00% | −184−1.2% | Reduced |
| MetLife Investment Management | 14,256 | $1.09M | 0.01% | −633−4.3% | Reduced |
| Acadian Asset Management LLC | 14,159 | $1.08M | 0.00% | −13,155−48.2% | Reduced |
| BNP Paribas Arbitrage, SA | 14,005 | $1.07M | 0.00% | −38,028−73.1% | Reduced |
| State of Alaska, Department of Revenue | 13,747 | $1.05M | 0.01% | +120+0.9% | Added |
| Freestone Grove Partners LP | 13,475 | $1.03M | 0.01% | +4,198+45.3% | Added |
| Brevan Howard Capital Management LP | 13,462 | $1.03M | 0.02% | −4,722−26.0% | Reduced |
| Illinois Municipal Retirement Fund | 12,767 | $977.2K | 0.01% | −1,018−7.4% | Reduced |
| First Trust Advisors LP | 12,276 | $939.6K | 0.00% | −628,286−98.1% | Reduced |
| Round Hill Asset Management | 11,974 | $916.5K | 0.58% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 11,628 | $890.0K | 0.00% | +4,514+63.5% | Added |
| Jacobs Levy Equity Management, Inc | 11,622 | $889.5K | 0.00% | −1,467−11.2% | Reduced |
| Manufacturers Life Insurance Company, The | 11,594 | $887.4K | 0.00% | −784−6.3% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 11,555 | $884.4K | 0.00% | −119−1.0% | Reduced |
| Louisiana State Employees Retirement System | 11,400 | $872.6K | 0.01% | 00.0% | Unchanged |
| Linden Thomas Advisory Services, LLC | 11,361 | $869.6K | 0.09% | −411−3.5% | Reduced |
| Capstone Investment Advisors, LLC | 11,352 | $868.9K | 0.01% | +4,560+67.1% | Added |
| Comerica Bank | 11,236 | $860.0K | 0.00% | −602−5.1% | Reduced |
| State of Tennessee, Treasury Department | 10,163 | $830.5K | 0.00% | −4,403−30.2% | Reduced |
| QSV Equity Investors LLC | 10,694 | $818.5K | 1.21% | −1,471−12.1% | Reduced |
| EntryPoint Capital, LLC | 10,685 | $817.8K | 0.32% | 00.0% | Unchanged |
| CWM, LLC | 10,452 | $800.0K | 0.00% | +280+2.8% | Added |
| Legato Capital Management LLC | 10,049 | $769.1K | 0.07% | +10,049 | New |
| James Investment Research Inc | 9,949 | $761.5K | 0.08% | 00.0% | Unchanged |
| XTX Topco Ltd | 9,737 | $745.3K | 0.02% | +9,737 | New |
| Aquatic Capital Management LLC | 9,659 | $739.3K | 0.02% | +901+10.3% | Added |
| Wealth Enhancement Advisory Services, LLC | 9,223 | $725.0K | 0.00% | +1,892+25.8% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,465 | $724.5K | 0.00% | +2,816+42.4% | Added |
| Marshall Wace, LLP | 9,228 | $706.3K | 0.00% | +9,228 | New |
| New York State Common Retirement Fund | 8,911 | $682.0K | 0.00% | 00.0% | Unchanged |
| Inceptionr LLC | 8,582 | $656.9K | 0.18% | +5,307+162.0% | Added |
| Vident Advisory, LLC | 8,503 | $650.8K | 0.01% | +8,503 | New |
| Skopos Labs, Inc. | 7,847 | $616.5K | 0.03% | +7,847 | New |
| New York State Teachers Retirement System | 7,962 | $609.0K | 0.00% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 7,535 | $576.7K | 0.00% | +1,226+19.4% | Added |
| Quantinno Capital Management LP | 7,297 | $558.6K | 0.00% | −2,517−25.6% | Reduced |
| Amalgamated Bank | 7,215 | $552.0K | 0.00% | −8−0.1% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 6,951 | $532.0K | 0.00% | +20.0% | Added |
| Yousif Capital Management, LLC | 6,713 | $532.0K | 0.01% | −981−12.8% | Reduced |
| Arizona State Retirement System | 6,885 | $527.0K | 0.00% | −488−6.6% | Reduced |
| State Board of Administration of Florida Retirement System | 6,727 | $514.9K | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 6,511 | $498.4K | 0.00% | +1,148+21.4% | Added |
| Arrowstreet Capital, Limited Partnership | 6,238 | $477.5K | 0.00% | +6,238 | New |
| Teachers Retirement System of the State of Kentucky | 6,230 | $476.0K | 0.00% | −852−12.0% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 6,134 | $469.5K | 0.00% | −190−3.0% | Reduced |
| Susquehanna International Group, LLP | 6,123 | $468.7K | 0.00% | −3,556−36.7% | Reduced |
| CWM Advisors, LLC | 6,086 | $465.8K | 0.04% | +214+3.6% | Added |
| Keybank National Association | 6,001 | $459.3K | 0.00% | +1,386+30.0% | Added |
| Quadrature Capital Ltd | 5,955 | $455.8K | 0.00% | +5,955 | New |
| R Squared Ltd | 5,883 | $450.3K | 0.21% | +42+0.7% | Added |
| Man Group plc | 5,717 | $437.6K | 0.00% | +799+16.2% | Added |
| Oregon Public Employees Retirement Fund | 5,631 | $431.0K | 0.01% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 5,589 | $427.8K | 0.00% | +22+0.4% | Added |
| Ethic Inc. | 5,351 | $409.6K | 0.01% | +5,351 | New |
| KLP Kapitalforvaltning AS | 5,300 | $405.7K | 0.00% | +300+6.0% | Added |
| Amundi | 5,189 | $397.2K | 0.00% | +699+15.6% | Added |
| LPL Financial LLC | 5,077 | $388.6K | 0.00% | −1,769−25.8% | Reduced |
| Bell & Brown Wealth Advisors, LLC | 4,966 | $380.1K | 0.12% | −10.0% | Reduced |
| Cetera Investment Advisers | 4,859 | $371.9K | 0.00% | +4,859 | New |
| HGK Asset Management Inc | 4,316 | $330.3K | 0.05% | −277−6.0% | Reduced |
| Royal Bank of Canada | 4,176 | $319.0K | 0.00% | −428−9.3% | Reduced |
| Quantbot Technologies LP | 4,103 | $314.0K | 0.01% | −12,868−75.8% | Reduced |
| Pictet Asset Management Holding SA | 4,052 | $310.1K | 0.00% | 00.0% | Unchanged |
| Diversified Trust Co | 3,823 | $292.6K | 0.01% | +25+0.7% | Added |
| Oxford Asset Management LLP | 3,632 | $278.0K | 0.10% | −1,605−30.6% | Reduced |
| Maryland State Retirement & Pension System | 3,612 | $276.5K | 0.01% | +42+1.2% | Added |
| Envestnet Asset Management Inc | 3,461 | $264.9K | 0.00% | −10,081−74.4% | Reduced |
| Polymer Capital Management (US) LLC | 3,458 | $264.7K | 0.03% | −1,452−29.6% | Reduced |
| Meeder Asset Management Inc | 3,425 | $262.1K | 0.01% | −2,813−45.1% | Reduced |
| Captrust Financial Advisors | 3,360 | $257.2K | 0.00% | +406+13.7% | Added |
| Profund Advisors LLC | 3,042 | $232.8K | 0.01% | +3,042 | New |
| Public Employees Retirement Association of Colorado | 3,018 | $231.0K | 0.00% | 00.0% | Unchanged |
| Mackenzie Financial Corp | 2,960 | $230.8K | 0.00% | −196−6.2% | Reduced |
| Aigen Investment Management, LP | 2,980 | $228.1K | 0.05% | −3,763−55.8% | Reduced |
| Toroso Investments, LLC | 2,834 | $216.9K | 0.00% | +2,834 | New |
| PharVision Advisers, LLC | 2,817 | $215.6K | 0.11% | +2,817 | New |
| The PNC Financial Services Group, Inc. | 2,361 | $180.7K | 0.00% | +692+41.5% | Added |
| Tower Research Capital LLC (TRC) | 2,330 | $178.3K | 0.00% | −187−7.4% | Reduced |
| State of Wyoming | 2,186 | $167.3K | 0.02% | +2,014+1,170.9% | Added |
| Ameritas Investment Partners, Inc. | 2,099 | $160.7K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 1,934 | $148.0K | 0.00% | +17+0.9% | Added |
| Smartleaf Asset Management LLC | 1,665 | $130.1K | 0.00% | +348+26.4% | Added |
| Sterling Capital Management LLC | 1,367 | $104.6K | 0.00% | −287−17.4% | Reduced |
| Ensign Peak Advisors, Inc | 1,209 | $92.5K | 0.00% | −3,800−75.9% | Reduced |
| Signaturefd, LLC | 993 | $76.0K | 0.00% | +393+65.5% | Added |
| Murphy & Mullick Capital Management Corp | 962 | $73.6K | 0.05% | 00.0% | Unchanged |
| MAI Capital Management | 956 | $73.2K | 0.00% | +56+6.2% | Added |
| HM Payson & Co | 909 | $69.6K | 0.00% | 00.0% | Unchanged |
| DekaBank Deutsche Girozentrale | 515 | $68.0K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 880 | $67.4K | 0.00% | +292+49.7% | Added |
| KBC Group NV | 860 | $66.0K | 0.00% | 00.0% | Unchanged |
| Eurizon Capital SGR S.p.A. | 804 | $62.8K | 0.00% | +804 | New |
| Rockefeller Capital Management L.P. | 728 | $55.7K | 0.00% | +405+125.4% | Added |
| EverSource Wealth Advisors, LLC | 683 | $52.3K | 0.00% | +90+15.2% | Added |
| Caitong International Asset Management Co., Ltd | 662 | $50.7K | 0.01% | +503+316.4% | Added |
| Danske Bank A/S | 600 | $45.9K | 0.00% | 00.0% | Unchanged |