Innospec (IOSP) Institutional Ownership $83.96 +0.31 (+0.37%) Closing price 03:59 PM EasternExtended Trading$84.00 +0.04 (+0.04%) As of 04:05 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Innospec (NASDAQ:IOSP)CurrentInstitutional OwnershipPercentage96.64%Number ofInstitutional Buyers(last 12 months)176TotalInstitutional Inflows(last 12 months)$582.62MNumber ofInstitutional Sellers(last 12 months)122TotalInstitutional Outflows(last 12 months)$216.15M Get IOSP Insider Trade Alerts Want to know when executives and insiders are buying or selling Innospec stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data IOSP Institutional Buying and Selling by Quarter Innospec Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails8/19/2025 State of Wyoming801$67K0.0%+27.5%0.003% 8/18/2025 Westwood Holdings Group Inc.412,310$34.67M0.3%+7.8%1.660% 8/18/2025 Caxton Associates LLP5,116$430K0.0%-17.2%0.021% 8/16/2025 Public Sector Pension Investment Board84,959$7.14M0.0%+7.4%0.342% 8/16/2025 FORA Capital LLC2,619$220K0.0%N/A0.011% 8/15/2025 CANADA LIFE ASSURANCE Co29,268$2.46M0.0%+1.0%0.118% 8/15/2025 Tower Research Capital LLC TRC 6,710$564K0.0%+2,296.4%0.027% 8/15/2025 Smartleaf Asset Management LLC751$63K0.0%-47.4%0.003% 8/15/2025 Oxford Asset Management LLP3,233$272K0.1%N/A0.013% 8/15/2025 HRT Financial LP32,242$2.71M0.0%+68.0%0.130% Get the Latest News and Ratings for IOSP and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Innospec and its competitors with MarketBeat's FREE daily newsletter. 8/15/2025 Holocene Advisors LP19,441$1.64M0.0%+151.6%0.078% 8/15/2025 Gendell Jeffrey L79,781$6.71M0.2%+3.3%0.321% 8/15/2025 Engineers Gate Manager LP39,062$3.29M0.0%+25.1%0.157% 8/15/2025 Cubist Systematic Strategies LLC219,088$18.42M0.1%+68.0%0.882% 8/15/2025 BNP Paribas Financial Markets19,985$1.68M0.0%+268.1%0.080% 8/15/2025 Bridgeway Capital Management LLC21,900$1.84M0.0%-50.0%0.088% 8/15/2025 Brevan Howard Capital Management LP9,053$761K0.0%-15.5%0.036% 8/15/2025 Balyasny Asset Management L.P.47,239$3.97M0.0%+31.2%0.190% 8/15/2025 Bank of America Corp DE295,498$24.85M0.0%+21.3%1.190% 8/15/2025 Ameriprise Financial Inc.85,277$7.17M0.0%+29.0%0.343% 8/15/2025 AQR Capital Management LLC72,024$6.06M0.0%+403.0%0.290% 8/14/2025 PDT Partners LLC13,443$1.13M0.1%N/A0.054% 8/14/2025 Jane Street Group LLC117,199$9.86M0.0%+23.1%0.472% 8/14/2025 California State Teachers Retirement System23,062$1.94M0.0%+0.8%0.093% 8/14/2025 Raymond James Financial Inc.70,675$5.94M0.0%-62.2%0.285% 8/14/2025 Occudo Quantitative Strategies LP19,109$1.61M0.2%-7.4%0.077% 8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.13,772$1.16M0.0%-7.2%0.055% 8/14/2025 The Manufacturers Life Insurance Company 13,127$1.10M0.0%-4.6%0.053% 8/14/2025 Sei Investments Co.55,472$4.67M0.0%-60.1%0.223% 8/14/2025 Nebula Research & Development LLC28,128$2.37M0.2%+15.8%0.113% 8/14/2025 Qube Research & Technologies Ltd306,761$25.80M0.0%+72.1%1.235% 8/14/2025 State Street Corp970,225$81.59M0.0%-4.1%3.907% 8/14/2025 Cerity Partners LLC14,833$1.25M0.0%+12.2%0.060% 8/13/2025 Jump Financial LLC12,259$1.03M0.0%+64.5%0.049% 8/13/2025 Brown Advisory Inc.426,544$35.87M0.0%+29.5%1.718% 8/13/2025 Amundi4,276$377K0.0%-59.8%0.017% 8/13/2025 QSV Equity Investors LLC12,165$1.02M1.1%-1.2%0.049% 8/13/2025 Walleye Capital LLC40,120$3.37M0.0%+324.5%0.162% 8/13/2025 First Trust Advisors LP802,504$67.48M0.1%-10.0%3.232% 8/13/2025 EverSource Wealth Advisors LLC529$44K0.0%+1,159.5%0.002% Market Panic: Trump Just Dropped a Bomb on Your Stocks (Ad)tock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tariffs just lit the fuse. Millions of investors are blindsided as stocks plunge… but this is only Phase 1. If you're still holding the wrong assets, you could lose 30% or more in the coming weeks.Don't wait for the next drop to wipe you out. Get the FREE Guide Before Markets Open Tomorrow8/13/2025 Invesco Ltd.223,763$18.82M0.0%-10.5%0.901% 8/13/2025 Quantbot Technologies LP31,052$2.61M0.1%+94.1%0.125% 8/13/2025 Edgestream Partners L.P.47,068$3.96M0.1%-32.8%0.190% 8/13/2025 New York State Common Retirement Fund8,911$749K0.0%+15.6%0.036% 8/13/2025 Norges Bank133,545$11.23M0.0%N/A0.538% 8/13/2025 Hsbc Holdings PLC11,857$1.00M0.0%+60.3%0.048% 8/13/2025 Russell Investments Group Ltd.5,348$450K0.0%+7.1%0.022% 8/12/2025 XTX Topco Ltd8,039$676K0.0%-35.9%0.032% 8/12/2025 Prudential Financial Inc.26,049$2.19M0.0%+6.8%0.105% 8/12/2025 American Century Companies Inc.55,861$4.70M0.0%+17.5%0.225% 8/12/2025 Segall Bryant & Hamill LLC118,161$9.94M0.1%+20.6%0.476% 8/12/2025 Bahl & Gaynor Inc.26,575$2.24M0.0%-14.1%0.107% 8/12/2025 Rhumbline Advisers81,481$6.85M0.0%+4.8%0.328% 8/12/2025 AXQ Capital LP6,751$568K0.2%N/A0.027% 8/12/2025 Franklin Resources Inc.27,672$2.33M0.0%+2.5%0.111% 8/12/2025 Legal & General Group Plc69,673$5.86M0.0%+1.4%0.281% 8/12/2025 JPMorgan Chase & Co.321,164$27.01M0.0%+17.6%1.293% 8/12/2025 Entropy Technologies LP10,379$873K0.1%N/A0.042% 8/12/2025 Swiss National Bank48,003$4.04M0.0%-0.6%0.193% 8/12/2025 Dynamic Technology Lab Private Ltd16,801$1.41M0.2%+65.0%0.068% 8/8/2025 Westwood Holdings Group Inc.412,310$34.67M0.3%+7.8%1.652% 8/8/2025 Intech Investment Management LLC20,969$1.76M0.0%-4.8%0.084% 8/8/2025 Creative Planning4,015$338K0.0%-24.3%0.016% 8/8/2025 SG Americas Securities LLC50,924$4.28M0.0%+1,877.6%0.204% 8/8/2025 Commonwealth of Pennsylvania Public School Empls Retrmt SYS6,408$539K0.0%+7.4%0.026% 8/8/2025 Police & Firemen s Retirement System of New Jersey5,628$473K0.0%+6.0%0.023% 8/8/2025 Geode Capital Management LLC719,598$60.52M0.0%+2.1%2.883% 8/8/2025 KBC Group NV860$72K0.0%-30.4%0.003% 8/7/2025 ProShare Advisors LLC75,056$6.31M0.0%+1,178.4%0.301% 8/7/2025 Campbell & CO Investment Adviser LLC26,005$2.19M0.1%+494.3%0.104% 8/6/2025 Savant Capital LLC7,387$621K0.0%N/A0.030% 8/6/2025 BNP PARIBAS ASSET MANAGEMENT Holding S.A.332$28K0.0%N/A0.001% 8/5/2025 Bank of New York Mellon Corp231,007$19.43M0.0%+1.0%0.926% 8/5/2025 Bank of Montreal Can4,217$355K0.0%-16.0%0.017% 8/5/2025 Burney Co.5,291$445K0.0%-82.0%0.021% 8/5/2025 Tredje AP fonden15,047$1.27M0.0%+43.3%0.060% 8/4/2025 Keybank National Association OH4,899$412K0.0%-26.0%0.020% 8/1/2025 Teacher Retirement System of Texas60,010$5.05M0.0%+867.7%0.240% 8/1/2025 Y Intercept Hong Kong Ltd41,245$3.47M0.1%N/A0.165% 8/1/2025 Envestnet Asset Management Inc.17,253$1.45M0.0%-38.8%0.069% 7/31/2025 Leeward Investments LLC MA73,734$6.20M0.3%-3.5%0.295% 7/31/2025 MQS Management LLC4,311$363K0.2%N/A0.017% 7/31/2025 Linden Thomas Advisory Services LLC11,736$987K0.1%-1.6%0.047% 7/31/2025 State of New Jersey Common Pension Fund D21,862$1.84M0.0%+15.3%0.088% 7/31/2025 AlphaQuest LLC28,814$2.42M0.2%+871.1%0.115% 7/31/2025 Caitong International Asset Management Co. Ltd496$42K0.0%-61.3%0.002% 7/31/2025 R Squared Ltd5,511$463K0.3%+99.0%0.022% 7/30/2025 Legacy Wealth Asset Management LLC4,152$349K0.1%-12.6%0.017% 7/29/2025 Mutual of America Capital Management LLC77,255$6.50M0.1%+2,026.5%0.310% 7/29/2025 Bell & Brown Wealth Advisors LLC4,966$418K0.1%-4.8%0.020% Market Panic: Trump Just Dropped a Bomb on Your Stocks (Ad)tock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tariffs just lit the fuse. Millions of investors are blindsided as stocks plunge… but this is only Phase 1. If you're still holding the wrong assets, you could lose 30% or more in the coming weeks.Don't wait for the next drop to wipe you out. Get the FREE Guide Before Markets Open Tomorrow7/28/2025 New York State Teachers Retirement System11,596$975K0.0%-8.7%0.046% 7/28/2025 Moran Wealth Management LLC42,603$3.58M0.1%-5.4%0.171% 7/25/2025 Vest Financial LLC18,253$1.54M0.0%-10.4%0.073% 7/25/2025 Allspring Global Investments Holdings LLC2,483,185$216.21M0.4%+3.3%9.949% 7/25/2025 CWM LLC5,492$462K0.0%+769.0%0.022% 7/24/2025 Inspire Investing LLC4,620$388K0.0%+27.3%0.019% 7/24/2025 Blue Trust Inc.672$57K0.0%+38.3%0.003% 7/21/2025 ZWJ Investment Counsel Inc.39,420$3.32M0.1%-14.9%0.158% 7/21/2025 Hudson Edge Investment Partners Inc.4,525$381K0.1%-6.2%0.018% 7/16/2025 Kirr Marbach & Co. LLC IN54,335$4.57M0.9%-31.3%0.218% (Data available from 1/1/2016 forward) IOSP Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of IOSP shares? During the previous two years, 267 institutional investors and hedge funds held shares of Innospec. The most heavily invested institutionals were Vanguard Group Inc. ($304.22M), Allspring Global Investments Holdings LLC ($216.21M), Wasatch Advisors LP ($173.91M), Dimensional Fund Advisors LP ($109.72M), Victory Capital Management Inc. ($104.84M), State Street Corp ($81.59M), and First Trust Advisors LP ($67.48M).Learn more on Innospec's institutional investors. What percentage of Innospec's stock is owned by institutional investors? 96.64% of Innospec's stock is owned by institutional investors. Learn more on IOSP's institutional investor holdings. Which institutional investors have been buying Innospec's stock? Of the 221 institutional investors that purchased Innospec's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Pacer Advisors Inc. ($485.71K), Nuveen LLC ($453.47K), Norges Bank ($446.68K), Financial Harvest LLC ($433.84K), Brown Advisory Inc. ($426.54K), Raymond James Financial Inc. ($381.47K), and Cubist Systematic Strategies LLC ($244.87K). How much institutional buying is happening at Innospec? Institutional investors have bought a total of 5,953,387 shares in the last 24 months. This purchase volume represents approximately $582.62M in transactions. Which of Innospec's major shareholders have been selling company stock? Of the 122 institutional investors that sold Innospec's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Invesco Ltd. ($265.23K), Wasatch Advisors LP ($225.43K), Royce & Associates LP ($181.70K), Bessemer Group Inc. ($145.13K), First Trust Advisors LP ($125.03K), Raymond James Financial Inc. ($120.06K), and Assenagon Asset Management S.A. ($110.53K). How much institutional selling is happening at Innospec? Institutional investors have sold a total of 2,159,987 shares in the last 24 months. This volume of shares sold represents approximately $216.15M in transactions. 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