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 |
|---|---|---|---|---|---|
| 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 |
| HFM Investment Advisors, LLC | 2 | $146 | 0.00% | +1+100.0% | Added |
| Abound Wealth Management | 2 | $147 | 0.00% | 00.0% | Unchanged |
| Rialto Wealth Management, LLC | 3 | $220 | 0.00% | +2+200.0% | Added |
| Ankerstar Wealth, LLC | 4 | $292 | 0.00% | +4 | New |
| Gilpin Wealth Management, LLC | 4 | $293 | 0.00% | +4 | New |
| WPG Advisers, LLC | 5 | $365 | 0.00% | −5−50.0% | Reduced |
| DiNuzzo Private Wealth, Inc. | 5 | $366 | 0.00% | +4+400.0% | Added |
| Harbour Investments, Inc. | 8 | $584 | 0.00% | 00.0% | Unchanged |
| First Horizon Corp | 9 | $657 | 0.00% | 00.0% | Unchanged |
| Keating Financial Advisory Services, Inc. | 10 | $730 | 0.00% | +9+900.0% | Added |
| Bare Financial Services, Inc | 17 | $1.24K | 0.00% | +17 | New |
| Farmers & Merchants Investments Inc | 18 | $1.31K | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 18 | $1.31K | 0.00% | +13+260.0% | Added |
| Fortitude Family Office, LLC | 20 | $1.46K | 0.00% | +16+400.0% | Added |
| Larson Financial Group LLC | 24 | $1.75K | 0.00% | +24 | New |
| High Note Wealth, LLC | 26 | $1.90K | 0.00% | +26 | New |
| CVA Family Office, LLC | 28 | $2.04K | 0.00% | +28 | New |
| Massmutual Trust Co FSB | 29 | $2.12K | 0.00% | −91−75.8% | Reduced |
| Optiver Holding B.V. | 30 | $2.19K | 0.00% | +30 | New |
| Cedar Mountain Advisors, LLC | 39 | $2.85K | 0.00% | +39 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 42 | $3.07K | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 45 | $3.29K | 0.00% | +33+275.0% | Added |
| Quadrant Capital Group LLC | 53 | $3.87K | 0.00% | −211−79.9% | Reduced |
| True Wealth Design, LLC | 56 | $4.09K | 0.00% | +18+47.4% | Added |
| Umb Bank N A | 57 | $4.16K | 0.00% | −163−74.1% | Reduced |
| Private Wealth Asset Management, LLC | 63 | $4.60K | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 88 | $6.43K | 0.00% | +88 | New |
| Basecamp Wealth Advisors LLC | 91 | $6.64K | 0.00% | +48+111.6% | Added |
| Bessemer Group Inc | 105 | $7.00K | 0.00% | +34+47.9% | Added |
| STRS Ohio | 100 | $7.30K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 106 | $7.74K | 0.00% | −35−24.8% | Reduced |
| Kilter Group LLC | 106 | $7.74K | 0.00% | +90+562.5% | Added |
| US Bancorp | 135 | $9.86K | 0.00% | −90−40.0% | Reduced |
| Harbor Capital Advisors, Inc. | 133 | $10.0K | 0.00% | +47+54.7% | Added |
| Barrow Hanley Mewhinney & Strauss LLC | 157 | $11.5K | 0.00% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 164 | $12.0K | 0.00% | +125+320.5% | Added |
| Parallel Advisors, LLC | 168 | $12.3K | 0.00% | −106−38.7% | Reduced |
| Zions Bancorporation, National Association | 177 | $12.9K | 0.00% | −1−0.6% | Reduced |
| Farther Finance Advisors, LLC | 179 | $13.2K | 0.00% | −16−8.2% | Reduced |
| Rothschild Investment LLC | 182 | $13.3K | 0.00% | +31+20.5% | Added |
| Crews Bank & Trust | 200 | $14.6K | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 236 | $17.0K | 0.01% | −225−48.8% | Reduced |
| Essential Partners LLC | 240 | $17.5K | 0.01% | −237−49.7% | Reduced |
| Vanguard National Trust Co | 290 | $21.2K | 0.00% | +290 | New |
| Advisor Group Holdings, Inc. | 297 | $21.7K | 0.00% | −29−8.9% | Reduced |
| Rockefeller Capital Management L.P. | 297 | $21.7K | 0.00% | −431−59.2% | Reduced |
| SRS Capital Advisors, Inc. | 303 | $22.4K | 0.00% | +191+170.5% | Added |
| Quarry LP | 323 | $23.6K | 0.00% | +133+70.0% | Added |
| Versant Capital Management, Inc | 332 | $24.2K | 0.00% | −101−23.3% | Reduced |
| TSFG, LLC | 370 | $27.0K | 0.00% | 00.0% | Unchanged |
| Nomura Asset Management Co Ltd | 370 | $27.0K | 0.00% | +370 | New |
| CDKV Holdings LLC | 400 | $29.2K | 0.03% | 00.0% | Unchanged |
| Hantz Financial Services, Inc. | 420 | $31.0K | 0.00% | −155−27.0% | Reduced |
| Meeder Asset Management Inc | 438 | $32.0K | 0.00% | −2,987−87.2% | Reduced |
| GAMMA Investing LLC | 517 | $37.8K | 0.00% | +403+353.5% | Added |
| DekaBank Deutsche Girozentrale | 515 | $38.0K | 0.00% | 00.0% | Unchanged |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 616 | $45.0K | 0.00% | +159+34.8% | Added |
| Public Employees Retirement System of Ohio | 687 | $50.2K | 0.00% | −19,449−96.6% | Reduced |
| Pinnacle Wealth Planning Services, Inc. | 707 | $51.6K | 0.01% | +461+187.4% | Added |
| EverSource Wealth Advisors, LLC | 718 | $52.4K | 0.00% | +35+5.1% | Added |
| Royal Bank of Canada | 745 | $55.0K | 0.00% | −3,431−82.2% | Reduced |
| Sterling Capital Management LLC | 789 | $57.6K | 0.00% | −578−42.3% | Reduced |
| Signaturefd, LLC | 808 | $59.0K | 0.00% | −185−18.6% | Reduced |
| Eurizon Capital SGR S.p.A. | 804 | $59.1K | 0.00% | 00.0% | Unchanged |
| KBC Group NV | 860 | $63.0K | 0.00% | 00.0% | Unchanged |
| HM Payson & Co | 909 | $66.4K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 930 | $67.9K | 0.00% | +50+5.7% | Added |
| Murphy & Mullick Capital Management Corp | 962 | $70.2K | 0.05% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 1,079 | $78.8K | 0.00% | −1,282−54.3% | Reduced |
| Jones Financial Companies LLLP | 1,115 | $80.5K | 0.00% | +876+366.5% | Added |
| Ensign Peak Advisors, Inc | 1,209 | $88.3K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 1,229 | $90.0K | 0.00% | −436−26.2% | Reduced |
| MAI Capital Management | 1,576 | $115.1K | 0.00% | +620+64.9% | Added |
| Nisa Investment Advisors, LLC | 1,900 | $138.7K | 0.00% | −34−1.8% | Reduced |
| Tower Research Capital LLC (TRC) | 1,902 | $138.9K | 0.00% | −428−18.4% | Reduced |
| Ameritas Investment Partners, Inc. | 2,099 | $153.3K | 0.00% | 00.0% | Unchanged |
| Aster Capital Management (DIFC) Ltd | 1,630 | $154.4K | 0.05% | +1,559+2,195.8% | Added |
| Virtu Financial LLC | 2,885 | $211.0K | 0.01% | +2,885 | New |
| Public Employees Retirement Association of Colorado | 3,018 | $220.0K | 0.00% | 00.0% | Unchanged |
| James Investment Research Inc | 3,015 | $220.2K | 0.02% | −6,934−69.7% | Reduced |
| DRW Securities, LLC | 3,229 | $235.8K | 0.01% | +3,229 | New |
| Headlands Technologies LLC | 3,519 | $257.0K | 0.03% | +3,519 | New |
| Captrust Financial Advisors | 3,600 | $262.9K | 0.00% | +240+7.1% | Added |
| Maryland State Retirement & Pension System | 3,612 | $263.7K | 0.01% | 00.0% | Unchanged |
| MQS Management LLC | 3,662 | $267.4K | 0.18% | +3,662 | New |
| Tudor Investment Corp Et Al | 3,784 | $276.3K | 0.00% | +3,784 | New |
| Toroso Investments, LLC | 3,853 | $281.3K | 0.00% | +1,019+36.0% | Added |
| Indivisible Partners | 3,868 | $282.5K | 0.02% | +3,868 | New |
| State of Wyoming | 3,918 | $286.1K | 0.03% | +1,732+79.2% | Added |
| ISAM Funds (UK) Ltd | 3,922 | $286.4K | 0.14% | +3,922 | New |
| Envestnet Asset Management Inc | 3,928 | $286.8K | 0.00% | +467+13.5% | Added |
| Polymer Capital Management (US) LLC | 4,269 | $311.7K | 0.05% | +811+23.5% | Added |
| R Squared Ltd | 4,363 | $318.6K | 0.17% | −1,520−25.8% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 4,527 | $330.6K | 0.00% | +4,527 | New |
| Bailard, Inc. | 4,700 | $343.2K | 0.01% | +4,700 | New |
| Pictet Asset Management Holding SA | 4,708 | $343.8K | 0.00% | +656+16.2% | Added |
| Caxton Associates LLP | 4,726 | $345.1K | 0.01% | +4,726 | New |