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, Q1 2026
Institutional positions in Innospec Inc. as of Mar 31, 2026. 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
- +11 vs. Q4 2025
- Shares held
- 24.9M
- +3.92M (+18.7%) vs. Q4 2025
- Total value
- $1.82B
- +$214.6M (+13.3%) vs. Q4 2025
- New holders
- 41
- 114 more added
- Sold out
- 30
- 79 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Innospec Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Signaturefd, LLC | 808 | $59.0K | 0.00% | −185−18.6% | Reduced |
| Sterling Capital Management LLC | 789 | $57.6K | 0.00% | −578−42.3% | Reduced |
| Royal Bank of Canada | 745 | $55.0K | 0.00% | −3,431−82.2% | Reduced |
| EverSource Wealth Advisors, LLC | 718 | $52.4K | 0.00% | +35+5.1% | Added |
| Pinnacle Wealth Planning Services, Inc. | 707 | $51.6K | 0.01% | +461+187.4% | Added |
| Public Employees Retirement System of Ohio | 687 | $50.2K | 0.00% | −19,449−96.6% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 616 | $45.0K | 0.00% | +159+34.8% | Added |
| DekaBank Deutsche Girozentrale | 515 | $38.0K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 517 | $37.8K | 0.00% | +403+353.5% | Added |
| Meeder Asset Management Inc | 438 | $32.0K | 0.00% | −2,987−87.2% | Reduced |
| Hantz Financial Services, Inc. | 420 | $31.0K | 0.00% | −155−27.0% | Reduced |
| CDKV Holdings LLC | 400 | $29.2K | 0.03% | 00.0% | Unchanged |
| Nomura Asset Management Co Ltd | 370 | $27.0K | 0.00% | +370 | New |
| TSFG, LLC | 370 | $27.0K | 0.00% | 00.0% | Unchanged |
| Versant Capital Management, Inc | 332 | $24.2K | 0.00% | −101−23.3% | Reduced |
| Quarry LP | 323 | $23.6K | 0.00% | +133+70.0% | Added |
| SRS Capital Advisors, Inc. | 303 | $22.4K | 0.00% | +191+170.5% | Added |
| Rockefeller Capital Management L.P. | 297 | $21.7K | 0.00% | −431−59.2% | Reduced |
| Advisor Group Holdings, Inc. | 297 | $21.7K | 0.00% | −29−8.9% | Reduced |
| Vanguard National Trust Co | 290 | $21.2K | 0.00% | +290 | New |
| Essential Partners LLC | 240 | $17.5K | 0.01% | −237−49.7% | Reduced |
| Covestor Ltd | 236 | $17.0K | 0.01% | −225−48.8% | Reduced |
| Crews Bank & Trust | 200 | $14.6K | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 182 | $13.3K | 0.00% | +31+20.5% | Added |
| Farther Finance Advisors, LLC | 179 | $13.2K | 0.00% | −16−8.2% | Reduced |
| Zions Bancorporation, National Association | 177 | $12.9K | 0.00% | −1−0.6% | Reduced |
| Parallel Advisors, LLC | 168 | $12.3K | 0.00% | −106−38.7% | Reduced |
| Root Financial Partners, LLC | 164 | $12.0K | 0.00% | +125+320.5% | Added |
| Barrow Hanley Mewhinney & Strauss LLC | 157 | $11.5K | 0.00% | 00.0% | Unchanged |
| Harbor Capital Advisors, Inc. | 133 | $10.0K | 0.00% | +47+54.7% | Added |
| US Bancorp | 135 | $9.86K | 0.00% | −90−40.0% | Reduced |
| Kilter Group LLC | 106 | $7.74K | 0.00% | +90+562.5% | Added |
| IFP Advisors, Inc | 106 | $7.74K | 0.00% | −35−24.8% | Reduced |
| STRS Ohio | 100 | $7.30K | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 105 | $7.00K | 0.00% | +34+47.9% | Added |
| Basecamp Wealth Advisors LLC | 91 | $6.64K | 0.00% | +48+111.6% | Added |
| Advisory Services Network, LLC | 88 | $6.43K | 0.00% | +88 | New |
| Private Wealth Asset Management, LLC | 63 | $4.60K | 0.00% | 00.0% | Unchanged |
| Umb Bank N A | 57 | $4.16K | 0.00% | −163−74.1% | Reduced |
| True Wealth Design, LLC | 56 | $4.09K | 0.00% | +18+47.4% | Added |
| Quadrant Capital Group LLC | 53 | $3.87K | 0.00% | −211−79.9% | Reduced |
| SJS Investment Consulting Inc. | 45 | $3.29K | 0.00% | +33+275.0% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 42 | $3.07K | 0.00% | 00.0% | Unchanged |
| Cedar Mountain Advisors, LLC | 39 | $2.85K | 0.00% | +39 | New |
| Optiver Holding B.V. | 30 | $2.19K | 0.00% | +30 | New |
| Massmutual Trust Co FSB | 29 | $2.12K | 0.00% | −91−75.8% | Reduced |
| CVA Family Office, LLC | 28 | $2.04K | 0.00% | +28 | New |
| High Note Wealth, LLC | 26 | $1.90K | 0.00% | +26 | New |
| Larson Financial Group LLC | 24 | $1.75K | 0.00% | +24 | New |
| Fortitude Family Office, LLC | 20 | $1.46K | 0.00% | +16+400.0% | Added |
| JFS Wealth Advisors, LLC | 18 | $1.31K | 0.00% | +13+260.0% | Added |
| Farmers & Merchants Investments Inc | 18 | $1.31K | 0.00% | 00.0% | Unchanged |
| Bare Financial Services, Inc | 17 | $1.24K | 0.00% | +17 | New |
| Keating Financial Advisory Services, Inc. | 10 | $730 | 0.00% | +9+900.0% | Added |
| First Horizon Corp | 9 | $657 | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 8 | $584 | 0.00% | 00.0% | Unchanged |
| DiNuzzo Private Wealth, Inc. | 5 | $366 | 0.00% | +4+400.0% | Added |
| WPG Advisers, LLC | 5 | $365 | 0.00% | −5−50.0% | Reduced |
| Gilpin Wealth Management, LLC | 4 | $293 | 0.00% | +4 | New |
| Ankerstar Wealth, LLC | 4 | $292 | 0.00% | +4 | New |
| Rialto Wealth Management, LLC | 3 | $220 | 0.00% | +2+200.0% | Added |
| Abound Wealth Management | 2 | $147 | 0.00% | 00.0% | Unchanged |
| HFM Investment Advisors, LLC | 2 | $146 | 0.00% | +1+100.0% | Added |
| SBI Securities Co., Ltd. | 1 | $73 | 0.00% | 00.0% | Unchanged |
| Bay Harbor Wealth Management, LLC | 1 | $73 | 0.00% | 00.0% | Unchanged |
| Vermillion Wealth Management, Inc. | 1 | $73 | 0.00% | +1 | New |
| Westwood Holdings Group Inc. | 0 | $0 | 0.00% | −491,451−100.0% | Sold out |
| Medina Singh Partners, LLC | 0 | $0 | 0.00% | −378,769−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −159,200−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −103,935−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −42,228−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −34,278−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −26,664−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −26,000−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −22,159−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −17,622−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −10,049−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −8,582−100.0% | Sold out |
| Vident Advisory, LLC | 0 | $0 | 0.00% | −8,503−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −7,847−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −3,632−100.0% | Sold out |
| Profund Advisors LLC | 0 | $0 | 0.00% | −3,042−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −2,960−100.0% | Sold out |
| PharVision Advisers, LLC | 0 | $0 | 0.00% | −2,817−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −662−100.0% | Sold out |
| Danske Bank A/S | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −129−100.0% | Sold out |
| TD Waterhouse Canada Inc. | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Salomon & Ludwin, LLC | 0 | $0 | 0.00% | −90−100.0% | Sold out |
| SageView Advisory Group, LLC | 0 | $0 | 0.00% | −40−100.0% | Sold out |
| Parkside Financial Bank & Trust | 0 | $0 | 0.00% | −39−100.0% | Sold out |
| Bell Investment Advisors, Inc | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| Cornerstone Planning Group LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Dunhill Financial, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Torren Management, LLC | 0 | $0 | 0.00% | 0 | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Norges Bank | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| QSV Equity Investors LLC | – | – | – | – | Not filed |