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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.

Institutional holdersQ3 2025: 266 institutions
Q1 2021: 180 institutionsQ2 2021: 180 institutionsQ3 2021: 188 institutionsQ4 2021: 184 institutionsQ1 2022: 188 institutionsQ2 2022: 199 institutionsQ3 2022: 193 institutionsQ4 2022: 223 institutionsQ1 2023: 219 institutionsQ2 2023: 205 institutionsQ3 2023: 212 institutionsQ4 2023: 223 institutionsQ1 2024: 239 institutionsQ2 2024: 266 institutionsQ3 2024: 261 institutionsQ4 2024: 262 institutionsQ1 2025: 272 institutionsQ2 2025: 262 institutionsQ3 2025: 266 institutionsQ4 2025: 261 institutionsQ1 2026: 266 institutionsQ2 2026: 281 institutions
Value heldQ3 2025: $1.85B
Q1 2021: $2.42BQ2 2021: $2.12BQ3 2021: $1.97BQ4 2021: $2.14BQ1 2022: $2.20BQ2 2022: $2.29BQ3 2022: $2.03BQ4 2022: $2.44BQ1 2023: $2.45BQ2 2023: $2.39BQ3 2023: $2.44BQ4 2023: $2.96BQ1 2024: $3.10BQ2 2024: $2.96BQ3 2024: $2.73BQ4 2024: $2.66BQ1 2025: $2.29BQ2 2025: $2.03BQ3 2025: $1.85BQ4 2025: $1.86BQ1 2026: $1.82BQ2 2026: $2.00B
Institutions holding IOSP and their total value by quarter
QuarterHoldersValue
Q2 2026281$2.00B
Q1 2026266$1.82B
Q4 2025261$1.86B
Q3 2025266$1.85B
Q2 2025262$2.03B
Q1 2025272$2.29B
Q4 2024262$2.66B
Q3 2024261$2.73B
Q2 2024266$2.96B
Q1 2024239$3.10B
Q4 2023223$2.96B
Q3 2023212$2.44B
Q2 2023205$2.39B
Q1 2023219$2.45B
Q4 2022223$2.44B
Q3 2022193$2.03B
Q2 2022199$2.29B
Q1 2022188$2.20B
Q4 2021184$2.14B
Q3 2021188$1.97B
Q2 2021180$2.12B
Q1 2021180$2.42B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Innospec Inc.; share changes are against Q2 2025.

Institutions holding IOSP in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Signaturefd, LLC600$46.3K0.00%−4−0.7%Reduced
Danske Bank A/S600$46.3K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC593$45.8K0.00%+64+12.1%Added
Allworth Financial LP588$45.4K0.00%+139+31.0%Added
Versant Capital Management, Inc545$42.1K0.01%+431+378.1%Added
DekaBank Deutsche Girozentrale515$39.0K0.00%00.0%Unchanged
Covestor Ltd463$36.0K0.02%+130+39.0%Added
Shell Asset Management Co425$33.0K0.00%−745−63.7%Reduced
TSFG, LLC370$29.0K0.00%00.0%Unchanged
US Bancorp371$28.6K0.00%−4,215−91.9%Reduced
Advisor Group Holdings, Inc.304$26.2K0.00%+24+8.6%Added
Rockefeller Capital Management L.P.323$25.0K0.00%+323New
BNP PARIBAS ASSET MANAGEMENT Holding S.A.307$24.0K0.00%−25−7.5%Reduced
Jones Financial Companies LLLP237$18.4K0.00%+28+13.4%Added
Crews Bank & Trust200$15.4K0.00%00.0%Unchanged
Westside Investment Management, Inc.199$15.4K0.00%00.0%Unchanged
Clearstead Advisors, LLC185$14.3K0.00%+87+88.8%Added
State of Wyoming172$13.3K0.00%−629−78.5%Reduced
Caitong International Asset Management Co., Ltd159$12.3K0.01%−337−67.9%Reduced
Barrow Hanley Mewhinney & Strauss LLC157$12.1K0.00%00.0%Unchanged
Hantz Financial Services, Inc.155$12.0K0.00%+135+675.0%Added
Aster Capital Management (DIFC) Ltd149$11.5K0.01%+149New
Farther Finance Advisors, LLC138$10.6K0.00%+3+2.2%Added
Optiver Holding B.V.128$9.88K0.00%+78+156.0%Added
Parallel Advisors, LLC124$9.57K0.00%+92+287.5%Added
Quarry LP121$9.34K0.00%+100+476.2%Added
Rise Advisors, LLC103$7.95K0.00%00.0%Unchanged
STRS Ohio100$7.72K0.00%−7,300−98.6%Reduced
Harbor Capital Advisors, Inc.87$7.00K0.00%00.0%Unchanged
True Wealth Design, LLC77$5.94K0.00%+18+30.5%Added
GAMMA Investing LLC75$5.79K0.00%−153−67.1%Reduced
Harbour Investments, Inc.67$5.17K0.00%00.0%Unchanged
Bessemer Group Inc71$5.00K0.00%−16−18.4%Reduced
Private Wealth Asset Management, LLC63$4.86K0.00%00.0%Unchanged
Umb Bank N A60$4.63K0.00%−29−32.6%Reduced
IFP Advisors, Inc56$4.32K0.00%−3−5.1%Reduced
Quadrant Capital Group LLC56$4.32K0.00%+56New
High Note Wealth, LLC52$4.01K0.00%+52New
Salomon & Ludwin, LLC48$3.78K0.00%+48New
Root Financial Partners, LLC45$3.47K0.00%+45New
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.42$3.24K0.00%00.0%Unchanged
Point72 Asia (Singapore) Pte. Ltd.39$3.01K0.00%−1,911−98.0%Reduced
Rothschild Investment LLC34$2.62K0.00%−1−2.9%Reduced
Private Wealth Management Group, LLC20$1.54K0.00%−23−53.5%Reduced
Fifth Third Bancorp18$1.39K0.00%−44−71.0%Reduced
Farmers & Merchants Investments Inc18$1.39K0.00%00.0%Unchanged
Hemington Wealth Management22$1.00K0.00%+8+57.1%Added
Bare Financial Services, Inc12$9260.00%+6+100.0%Added
Sunbelt Securities, Inc.11$8490.00%+11New
WPG Advisers, LLC10$7720.00%+2+25.0%Added
Fortitude Family Office, LLC9$6940.00%+3+50.0%Added
First Horizon Corp9$6940.00%+9New
JFS Wealth Advisors, LLC8$6180.00%+5+166.7%Added
Wealthspire Advisors, LLC8$6170.00%+8New
Parkside Financial Bank & Trust7$5410.00%−16−69.6%Reduced
Bell Investment Advisors, Inc6$4630.00%+6New
DiNuzzo Private Wealth, Inc.5$4380.00%+1+25.0%Added
Abound Wealth Management2$1550.00%00.0%Unchanged
SJS Investment Consulting Inc.2$1550.00%+2New
Ronald Blue Trust, Inc.2$1540.00%−670−99.7%Reduced
Bay Harbor Wealth Management, LLC2$1540.00%+2New
Rialto Wealth Management, LLC1$780.00%00.0%Unchanged
HFM Investment Advisors, LLC1$770.00%−1−50.0%Reduced
SBI Securities Co., Ltd.1$770.00%00.0%Unchanged
Simplex Trading, LLC4$00.00%+4New
Cloud Capital Management, LLC4$00.00%+4New
Segall Bryant & Hamill, LLC0$00.00%−118,161−100.0%Sold out
Raymond James Financial Inc0$00.00%−70,675−100.0%Sold out
Kirr Marbach & Co LLC0$00.00%−54,335−100.0%Sold out
Nebula Research & Development LLC0$00.00%−28,128−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−26,005−100.0%Sold out
Bridgeway Capital Management, LLC0$00.00%−21,900−100.0%Sold out
Pathstone Holdings, LLC0$00.00%−10,509−100.0%Sold out
XTX Topco Ltd0$00.00%−8,039−100.0%Sold out
Axq Capital, LP0$00.00%−6,751−100.0%Sold out
Burney Co0$00.00%−5,291−100.0%Sold out
Caxton Associates LLP0$00.00%−5,116−100.0%Sold out
Bank of Montreal0$00.00%−4,217−100.0%Sold out
Jain Global LLC0$00.00%−3,401−100.0%Sold out
HighTower Advisors, LLC0$00.00%−2,895−100.0%Sold out
Sanctuary Advisors, LLC0$00.00%−2,640−100.0%Sold out
FORA Capital, LLC0$00.00%−2,619−100.0%Sold out
Grandfield & Dodd, LLC0$00.00%−2,400−100.0%Sold out
Kestra Investment Management, LLC0$00.00%−25−100.0%Sold out
Skopos Labs, Inc.0$00.00%−22−100.0%Sold out
Geneos Wealth Management Inc.0$00.00%−21−100.0%Sold out
Larson Financial Group LLC0$00.00%−16−100.0%Sold out
NewSquare Capital LLC0$00.00%−10−100.0%Sold out
Huntington National Bank0$00.00%−3−100.0%Sold out
Assetmark, Inc0$00.00%−3−100.0%Sold out
Norges Bank––––Not filed
CIBC World Markets Corp––––Not filed
First Horizon Advisors, Inc.––––Not filed
Parkworth Wealth Management, Inc.––––Not filed