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 |
|---|---|---|---|---|---|
| Amundi | 4,490 | $353.9K | 0.00% | +214+5.0% | Added |
| HGK Asset Management Inc | 4,593 | $354.4K | 0.06% | +68+1.5% | Added |
| Royal Bank of Canada | 4,604 | $355.0K | 0.00% | −13,897−75.1% | Reduced |
| Keybank National Association | 4,615 | $356.1K | 0.00% | −284−5.8% | Reduced |
| Polymer Capital Management (US) LLC | 4,910 | $378.9K | 0.05% | +1,552+46.2% | Added |
| Man Group plc | 4,918 | $379.5K | 0.00% | +374+8.2% | Added |
| Bell & Brown Wealth Advisors, LLC | 4,967 | $383.2K | 0.13% | +10.0% | Added |
| KLP Kapitalforvaltning AS | 5,000 | $385.8K | 0.00% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 5,009 | $386.5K | 0.00% | −6,150−55.1% | Reduced |
| Oxford Asset Management LLP | 5,237 | $404.1K | 0.13% | +2,004+62.0% | Added |
| GWM Advisors LLC | 5,363 | $413.8K | 0.00% | +860+19.1% | Added |
| Tredje AP-fonden | 5,478 | $422.7K | 0.00% | −9,569−63.6% | Reduced |
| Mariner, LLC | 5,562 | $429.1K | 0.00% | +5,562 | New |
| Guggenheim Capital LLC | 5,567 | $429.6K | 0.00% | +15+0.3% | Added |
| Oregon Public Employees Retirement Fund | 5,631 | $434.5K | 0.01% | −100−1.7% | Reduced |
| R Squared Ltd | 5,841 | $450.7K | 0.19% | +330+6.0% | Added |
| CWM Advisors, LLC | 5,872 | $453.1K | 0.04% | +1,252+27.1% | Added |
| Meeder Asset Management Inc | 6,238 | $481.3K | 0.03% | +3,013+93.4% | Added |
| Mercer Global Advisors Inc | 6,309 | $486.8K | 0.00% | +6,309 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 6,324 | $488.0K | 0.00% | −84−1.3% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 6,359 | $490.7K | 0.00% | +6,359 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 6,649 | $513.0K | 0.00% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 6,727 | $519.1K | 0.00% | −29−0.4% | Reduced |
| Aigen Investment Management, LP | 6,743 | $520.3K | 0.08% | +321+5.0% | Added |
| Capstone Investment Advisors, LLC | 6,792 | $524.1K | 0.00% | +6,792 | New |
| LPL Financial LLC | 6,846 | $528.2K | 0.00% | +153+2.3% | Added |
| Police & Firemen's Retirement System of New Jersey | 6,949 | $536.2K | 0.00% | +1,321+23.5% | Added |
| Teachers Retirement System of the State of Kentucky | 7,082 | $546.0K | 0.00% | −257−3.5% | Reduced |
| Russell Investments Group, Ltd. | 7,114 | $548.9K | 0.00% | +1,766+33.0% | Added |
| Amalgamated Bank | 7,223 | $557.0K | 0.00% | +96+1.3% | Added |
| Semanteon Capital Management, LP | 7,324 | $565.1K | 0.71% | +7,324 | New |
| Arizona State Retirement System | 7,373 | $568.9K | 0.00% | +55+0.8% | Added |
| Wealth Enhancement Advisory Services, LLC | 7,331 | $572.6K | 0.00% | +3,438+88.3% | Added |
| Yousif Capital Management, LLC | 7,694 | $593.7K | 0.01% | −1,581−17.0% | Reduced |
| New York State Teachers Retirement System | 7,962 | $614.0K | 0.00% | −3,634−31.3% | Reduced |
| Aquatic Capital Management LLC | 8,758 | $675.8K | 0.01% | −4,266−32.8% | Reduced |
| New York State Common Retirement Fund | 8,911 | $687.6K | 0.00% | 00.0% | Unchanged |
| Entropy Technologies, LP | 9,179 | $708.3K | 0.05% | −1,200−11.6% | Reduced |
| Freestone Grove Partners LP | 9,277 | $715.8K | 0.01% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 9,679 | $746.8K | 0.00% | −27,182−73.7% | Reduced |
| Quantinno Capital Management LP | 9,814 | $757.3K | 0.00% | +9,814 | New |
| James Investment Research Inc | 9,949 | $767.7K | 0.08% | +1,615+19.4% | Added |
| CWM, LLC | 10,172 | $785.0K | 0.00% | +4,680+85.2% | Added |
| EntryPoint Capital, LLC | 10,685 | $824.5K | 0.32% | +8,089+311.6% | Added |
| Balyasny Asset Management LLC | 11,000 | $848.8K | 0.00% | −36,239−76.7% | Reduced |
| CBOE Vest Financial, LLC | 11,210 | $865.0K | 0.01% | −7,043−38.6% | Reduced |
| Louisiana State Employees Retirement System | 11,400 | $879.6K | 0.01% | −300−2.6% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 11,674 | $900.8K | 0.00% | −2,098−15.2% | Reduced |
| Linden Thomas Advisory Services, LLC | 11,772 | $908.3K | 0.09% | +36+0.3% | Added |
| Point72 Asset Management, L.P. | 11,793 | $910.0K | 0.00% | +745+6.7% | Added |
| Comerica Bank | 11,838 | $913.4K | 0.00% | −257−2.1% | Reduced |
| Round Hill Asset Management | 11,974 | $923.9K | 0.61% | 00.0% | Unchanged |
| CM Management, LLC | 12,000 | $925.9K | 0.77% | +2,000+20.0% | Added |
| QSV Equity Investors LLC | 12,165 | $938.7K | 0.96% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 12,216 | $942.6K | 0.00% | +4,489+58.1% | Added |
| Manufacturers Life Insurance Company, The | 12,378 | $955.1K | 0.00% | −749−5.7% | Reduced |
| Capital Fund Management S.A. | 12,583 | $970.9K | 0.01% | +12,583 | New |
| Jacobs Levy Equity Management, Inc | 13,089 | $1.01M | 0.00% | −8,967−40.7% | Reduced |
| Envestnet Asset Management Inc | 13,542 | $1.04M | 0.00% | −3,711−21.5% | Reduced |
| State of Alaska, Department of Revenue | 13,627 | $1.05M | 0.01% | −1,218−8.2% | Reduced |
| Creative Planning | 13,631 | $1.05M | 0.00% | +9,616+239.5% | Added |
| Illinois Municipal Retirement Fund | 13,785 | $1.06M | 0.01% | +868+6.7% | Added |
| State of Tennessee, Treasury Department | 14,566 | $1.12M | 0.00% | −2,016−12.2% | Reduced |
| MetLife Investment Management | 14,889 | $1.15M | 0.01% | 00.0% | Unchanged |
| HSBC Holdings PLC | 15,031 | $1.16M | 0.00% | +3,174+26.8% | Added |
| Occudo Quantitative Strategies LP | 16,274 | $1.26M | 0.15% | −2,835−14.8% | Reduced |
| Wedge Capital Management L L P | 16,345 | $1.26M | 0.02% | +1,393+9.3% | Added |
| Quantbot Technologies LP | 16,971 | $1.31M | 0.04% | −14,081−45.3% | Reduced |
| Public Employees Retirement System of Ohio | 17,334 | $1.34M | 0.00% | +2,377+15.9% | Added |
| Thrivent Financial for Lutherans | 17,915 | $1.38M | 0.00% | −17,842−49.9% | Reduced |
| Brevan Howard Capital Management LP | 18,184 | $1.40M | 0.02% | +9,131+100.9% | Added |
| SG Americas Securities, LLC | 19,389 | $1.50M | 0.01% | −31,535−61.9% | Reduced |
| Cerity Partners LLC | 21,042 | $1.62M | 0.00% | +6,209+41.9% | Added |
| Intech Investment Management LLC | 21,533 | $1.66M | 0.01% | +564+2.7% | Added |
| Citigroup Inc | 22,251 | $1.72M | 0.00% | −6,040−21.3% | Reduced |
| Huber Capital Management LLC | 22,548 | $1.74M | 0.28% | +2,400+11.9% | Added |
| California State Teachers Retirement System | 23,063 | $1.78M | 0.00% | +10.0% | Added |
| Price T Rowe Associates Inc | 23,362 | $1.80M | 0.00% | +981+4.4% | Added |
| Holocene Advisors, LP | 24,530 | $1.89M | 0.00% | +5,089+26.2% | Added |
| Prudential Financial Inc | 25,159 | $1.94M | 0.00% | −890−3.4% | Reduced |
| Schonfeld Strategic Advisors LLC | 25,264 | $1.95M | 0.01% | −4,167−14.2% | Reduced |
| State of New Jersey Common Pension Fund D | 25,325 | $1.95M | 0.01% | +3,463+15.8% | Added |
| Trexquant Investment LP | 25,666 | $1.98M | 0.02% | −33,758−56.8% | Reduced |
| Canada Pension Plan Investment Board | 26,000 | $2.01M | 0.00% | +26,000 | New |
| Ieq Capital, LLC | 26,390 | $2.04M | 0.01% | +16,413+164.5% | Added |
| Western Standard LLC | 27,000 | $2.08M | 1.11% | +27,000 | New |
| Alliancebernstein L.P. | 27,223 | $2.10M | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 27,314 | $2.10M | 0.00% | +22,629+483.0% | Added |
| Bahl & Gaynor Inc | 27,306 | $2.11M | 0.01% | +731+2.8% | Added |
| Franklin Resources Inc | 27,868 | $2.15M | 0.00% | +196+0.7% | Added |
| Jump Financial, LLC | 27,889 | $2.15M | 0.03% | +15,630+127.5% | Added |
| Gsa Capital Partners LLP | 28,274 | $2.18M | 0.18% | +8,974+46.5% | Added |
| Ingalls & Snyder LLC | 28,927 | $2.23M | 0.07% | 00.0% | Unchanged |
| Great West Life Assurance Co | 29,631 | $2.28M | 0.00% | +363+1.2% | Added |
| Y-Intercept (Hong Kong) Ltd | 30,152 | $2.33M | 0.06% | −11,093−26.9% | Reduced |
| Connors Investor Services Inc | 33,673 | $2.60M | 0.22% | +12,107+56.1% | Added |
| Dark Forest Capital Management LP | 33,798 | $2.61M | 0.10% | +4,601+15.8% | Added |
| Wells Fargo & Company | 33,891 | $2.62M | 0.00% | −14,355−29.8% | Reduced |
| Algert Global LLC | 34,728 | $2.68M | 0.04% | +4,180+13.7% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 38,971 | $3.01M | 0.01% | +38,971 | New |