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Innospec (IOSP) Institutional Ownership

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$95.17 -0.15 (-0.16%)
Closing price 10/1/2026 04:00 PM Eastern
Extended Trading
$95.17 0.00 (0.00%)
As of 08:15 AM 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 Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Innospec (NASDAQ:IOSP)

Current
Institutional Ownership
Percentage
96.64%
Number of
Institutional Buyers
(last 12 months)
139
Total
Institutional Inflows
(last 12 months)
$710.79M
Number of
Institutional Sellers
(last 12 months)
100
Total
Institutional Outflows
(last 12 months)
$224.00M
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IOSP Institutional Buying and Selling by Quarter

Innospec Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026Sequoia Financial Advisors LLC2,540$207K0.0%N/A0.010%
9/9/2026Tidal Investments LLC3,330$271K0.0%-13.6%0.014%
9/9/2026Engineers Gate Manager LP6,340$516K0.0%-90.2%0.026%
9/9/2026Integrated Wealth Concepts LLC1,658$135K0.0%N/A0.007%
9/9/2026NewEdge Advisors LLC11,286$919K0.0%+30.9%0.046%
9/9/2026Squarepoint Ops LLC10,379$845K0.0%-37.0%0.042%
9/8/2026Allworth Financial LP1,310$107K0.0%+40.9%0.005%
9/8/2026Nykredit A S996$81K0.0%N/A0.004%
8/27/2026Corient Private Wealth LP2,982$243K0.0%N/A0.012%
8/26/2026Amundi3,565$290K0.0%-59.8%0.014%
8/21/2026iSAM Funds UK Ltd3,000$244K0.2%-23.5%0.012%
8/21/2026Nykredit A S996$81K0.0%N/A0.004%
8/20/2026Headlands Technologies LLC4,632$377K0.0%+31.6%0.019%
8/20/2026Susquehanna International Group LLP3,615$294K0.0%-65.5%0.015%
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC73,457$5.98M0.0%-1.3%0.298%
8/19/2026Hsbc Holdings PLC23,693$1.94M0.0%-6.5%0.096%
8/18/2026Centaurus Financial Inc.1,444$118K0.0%N/A0.006%
8/18/2026Public Employees Retirement System of Ohio763$62K0.0%N/A0.003%
8/17/2026Capstone Investment Advisors LLC9,993$813K0.0%N/A0.041%
8/17/2026Bank of America Corp DE235,742$19.19M0.0%N/A0.957%
8/15/2026Freestone Grove Partners LP7,189$585K0.0%N/A0.029%
8/15/2026Man Group plc6,151$501K0.0%N/A0.025%
8/15/2026Jupiter Topco LLC127,976$10.42M0.0%N/A0.520%
8/14/2026Hsbc Holdings PLC23,693$1.94M0.0%N/A0.096%
8/14/2026PDT Partners LLC31,176$2.54M0.1%N/A0.127%
8/14/2026Legal & General Group Plc58,841$4.79M0.0%N/A0.239%
8/14/2026The Manufacturers Life Insurance Company12,070$982K0.0%N/A0.049%
8/12/2026Ieq Capital LLC45,343$3.69M0.0%N/A0.184%
8/11/2026Allworth Financial LP1,310$107K0.0%N/A0.005%
8/11/2026Vise Technologies Inc.3,650$297K0.0%N/A0.015%
8/11/2026Bell & Brown Wealth Advisors LLC2,609$212K0.1%N/A0.011%
8/11/2026Western Standard LLC236,833$19.28M6.5%N/A0.962%
8/8/2026Meeder Asset Management Inc.438$36K0.0%N/A0.002%
8/7/2026BlackRock Inc.4,381,323$356.60M0.0%N/A17.788%
8/7/2026Deutsche Bank AG27,565$2.24M0.0%N/A0.112%
8/6/2026Bank of New York Mellon Corp137,261$11.17M0.0%N/A0.557%
8/6/2026GSA Capital Partners LLP14,271$1.16M0.1%N/A0.058%
7/10/2026Wedge Capital Management L L P NC20,329$1.66M0.0%-5.3%0.083%
7/8/2026Assenagon Asset Management S.A.272,782$22.20M0.0%-44.4%1.107%
6/3/2026NewEdge Advisors LLC8,625$630K0.0%+32.5%0.035%
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5/19/2026Bank of America Corp DE290,766$21.23M0.0%-9.8%1.180%
5/19/2026Edgestream Partners L.P.34,226$2.50M0.1%-26.3%0.139%
5/19/2026Janus Henderson Group PLC133,272$9.73M0.0%-11.7%0.541%
5/18/2026Amundi8,875$648K0.0%+71.0%0.036%
5/18/2026California State Teachers Retirement System27,529$2.01M0.0%+15.7%0.112%
5/18/2026Royal Bank of Canada745$55K0.0%-82.2%0.003%
5/16/2026The Manufacturers Life Insurance Company11,203$818K0.0%-3.4%0.045%
5/16/2026Quantinno Capital Management LP5,606$409K0.0%-23.2%0.023%
5/15/2026Entropy Technologies LP19,968$1.46M0.1%+33.3%0.081%
5/14/2026Healthcare of Ontario Pension Plan Trust Fund61,669$4.50M0.0%-9.4%0.250%
5/14/2026Renaissance Technologies LLC118,900$8.68M0.0%-1.2%0.483%
5/14/2026Public Employees Retirement System of Ohio687$50K0.0%-96.6%0.003%
5/14/2026Arrowstreet Capital Limited Partnership18,497$1.35M0.0%+196.5%0.075%
5/14/2026Caxton Associates LLP4,726$345K0.0%N/A0.019%
5/14/2026Sei Investments Co.174,121$12.71M0.0%+67.9%0.707%
5/14/2026State of Wyoming3,918$286K0.0%+79.2%0.016%
5/13/2026Cetera Investment Advisers5,315$388K0.0%+9.4%0.022%
5/13/2026First Trust Advisors LP12,716$929K0.0%+3.6%0.052%
5/12/2026First Wilshire Securities Management Inc.148,072$10.81M2.4%+47.2%0.595%
5/8/2026PNC Financial Services Group Inc.1,079$79K0.0%-54.3%0.004%
5/8/2026Summit Global Investments14,430$1.05M0.1%N/A0.058%
5/7/2026Meeder Asset Management Inc.438$32K0.0%-87.2%0.002%
5/7/2026Dimensional Fund Advisors LP1,242,089$90.70M0.0%+5.7%4.990%
5/6/2026Allspring Global Investments Holdings LLC2,315,942$170.45M0.3%-1.7%9.305%
5/5/2026Bank of New York Mellon Corp131,291$9.59M0.0%-4.7%0.527%
5/5/2026Illinois Municipal Retirement Fund13,861$1.01M0.0%+8.6%0.056%
5/4/2026Principal Financial Group Inc.120,477$8.80M0.0%+2.0%0.484%
5/1/2026Fifth Third Bancorp12,482$911K0.0%+5,303.5%0.050%
4/30/2026Hsbc Holdings PLC25,351$1.86M0.0%+70.7%0.102%
4/29/2026R Squared Ltd4,363$319K0.2%-25.8%0.018%
4/28/2026Hudson Edge Investment Partners Inc.8,373$611K0.1%+94.0%0.034%
4/27/2026Moran Wealth Management LLC27,031$1.97M0.1%-35.7%0.109%
4/27/2026New York State Teachers Retirement System8,651$632K0.0%+8.7%0.035%
4/27/2026Y Intercept Hong Kong Ltd33,296$2.43M0.0%+35.3%0.134%
4/25/2026Keybank National Association OH5,583$408K0.0%-7.0%0.022%
4/24/2026Deprince Race & Zollo Inc.68,029$4.97M0.1%N/A0.273%
4/24/2026James Investment Research Inc.3,015$220K0.0%-69.7%0.012%
4/24/2026MQS Management LLC3,662$267K0.2%N/A0.015%
4/23/2026Inspire Investing LLC7,033$514K0.0%+15.6%0.028%
4/22/2026Pictet Asset Management Holding SA4,708$344K0.0%+16.2%0.019%
4/22/2026Sterling Capital Management LLC789$58K0.0%-42.3%0.003%
4/21/2026Louisiana State Employees Retirement System11,000$803K0.0%N/A0.044%
4/20/2026Assenagon Asset Management S.A.490,884$35.84M0.1%+175.5%1.972%
4/18/2026Leeward Investments LLC MA69,810$5.10M0.3%-2.6%0.280%
4/16/2026SG Americas Securities LLC60,868$4.45M0.0%-19.7%0.245%
4/16/2026Diversified Trust Co5,378$393K0.0%+40.7%0.022%
3/20/2026Hsbc Holdings PLC14,847$1.14M0.0%-1.2%0.060%
3/17/2026Rockefeller Capital Management L.P.728$56K0.0%+125.4%0.003%
3/3/2026Caitong International Asset Management Co. Ltd662$51K0.0%+316.4%0.003%
2/19/2026Invesco Ltd.104,639$8.01M0.0%+29.4%0.422%
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2/18/2026Mercer Global Advisors Inc. ADV7,535$577K0.0%+19.4%0.030%
2/18/2026Vident Advisory LLC8,503$651K0.0%N/A0.034%
2/18/2026State of Tennessee Department of Treasury10,163$831K0.0%-30.2%0.041%
2/18/2026Mackenzie Financial Corp2,960$231K0.0%-6.2%0.012%
2/18/2026NewEdge Advisors LLC6,511$498K0.0%+21.4%0.026%
2/18/2026XTX Topco Ltd9,737$745K0.0%N/A0.039%
2/18/2026Voloridge Investment Management LLC138,401$10.59M0.0%+9.8%0.559%
2/18/2026Polymer Capital Management US LLC3,458$265K0.0%-29.6%0.014%
2/18/2026Quadrature Capital Ltd5,955$456K0.0%N/A0.024%
2/18/2026Numerai GP LLC98,269$7.52M0.9%+20.5%0.397%


IOSP Institutional Ownership - Frequently Asked Questions

During the previous two years, 291 institutional investors and hedge funds held shares of Innospec. The most heavily invested institutionals were BlackRock Inc. ($356.60M), Vanguard Group Inc. ($238.89M), Wasatch Advisors LP ($173.91M), Allspring Global Investments Holdings LLC ($170.45M), Dimensional Fund Advisors LP ($90.70M), Victory Capital Management Inc. ($72.72M), and State Street Corp ($72.64M).Learn more on Innospec's institutional investors.

96.64% of Innospec's stock is owned by institutional investors. Learn more on IOSP's institutional investor holdings.

Of the 245 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: BlackRock Inc. ($4.38M), Nuveen LLC ($544.79K), Assenagon Asset Management S.A. ($506.17K), Western Standard LLC ($505.20K), Pacer Advisors Inc. ($485.71K), Financial Harvest LLC ($433.84K), and Brown Advisory Inc. ($426.54K).

Institutional investors have bought a total of 8,968,203 shares in the last 24 months. This purchase volume represents approximately $710.79M in transactions.

Of the 100 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: First Trust Advisors LP ($790.23K), Royce & Associates LP ($322.28K), Assenagon Asset Management S.A. ($218.10K), Allspring Global Investments Holdings LLC ($167.24K), Invesco Ltd. ($142.92K), Janus Henderson Group PLC ($124.84K), and Victory Capital Management Inc. ($122.59K).

Institutional investors have sold a total of 2,906,963 shares in the last 24 months. This volume of shares sold represents approximately $224.00M in transactions.


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Institutional ownership data for NASDAQ:IOSP is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.
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