InnospecIOSP

13F holders, Q3 2025 (September 30)
266holders +4
31new positions
23sold out
7famous investors
$77.13avg. 13F price*

At the end of Q3 2025, 266 institutions reported holding Innospec Inc. (IOSP) in their 13F filings, up 4 from Q2 2025. 31 opened new positions and 23 sold out. The largest holders were BlackRock, Inc. ($280.3M), Vanguard Group Inc. ($242.5M) and Allspring Global Investments Holdings, LLC ($183.8M). 7 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
Innospec Inc.
CUSIP
45768S105
Latest filing quarter
Q2 2026

History

Number of 13F holders

0100200300 Q1 2024: 237Q1 2024Q2 2024: 265Q2 2024Q3 2024: 260Q3 2024Q4 2024: 262Q4 2024Q1 2025: 272Q1 2025Q2 2025: 262Q2 2025Q3 2025: 266Q3 2025Q4 2025: 260Q4 2025Q1 2026: 266Q1 2026Q2 2026: 281Q2 2026

Total Exit/New Position Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions31$30.9M
Exits23$29.0M

All 13F filers, Q2 2025 → Q3 2025: 2,118,055 shares bought and 2,037,853 shares sold, net +80,202 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 266 holders

BlackRock, Inc. 0.00% Reduce -0.8% 3,632,985 $280.3M
Vanguard Group Inc. 0.00% Reduce -0.6% 3,143,422 $242.5M
Allspring Global Investments Holdings, LLC 0.29% Reduce -3.7% 2,391,749 $183.8M
Dimensional Fund Advisors LP 0.02% Reduce -0.2% 1,166,975 $90.0M
State Street Corp. 0.00% Reduce -4.2% 929,123 $71.7M
Victory Capital Management Inc. 0.04% Reduce -12.8% 835,895 $64.5M
First Trust Advisors LP 0.04% Reduce -20.2% 640,562 $49.4M
Geode Capital Management, LLC 0.00% Reduce -14.7% 614,212 $47.4M
Royce & Associates LP 0.38% Reduce -21.5% 492,614 $38.0M
Millennium Management 0.03% Add +37.6% 481,488 $37.2M
Westwood Holdings Group Inc. 0.25% Add +8.7% 447,962 $34.6M
Nuveen, LLC 0.01% Add +38.9% 411,277 $31.7M
Bank of America Corp. 0.00% Add +27.0% 375,331 $29.0M
Charles Schwab Investment Management Inc. 0.00% Add +1.2% 360,590 $27.8M
Qube Research & Technologies Ltd 0.04% Add +15.4% 354,012 $27.3M
Brown Advisory Inc. 0.04% Reduce -17.9% 349,972 $27.0M
JPMorgan Chase & Co. 0.00% Reduce -0.1% 320,982 $24.8M
Northern Trust Corp. 0.00% Reduce -1.1% 299,050 $23.1M
Goldman Sachs Group Inc. 0.00% Add +170.0% 282,643 $21.8M
D. E. Shaw & Co. 0.02% Add +59.5% 273,905 $21.1M
Janus Henderson Group PLC 0.01% Add +1.1% 258,107 $19.9M
Morgan Stanley 0.00% Reduce -3.8% 253,753 $19.6M
Medina Value Partners, LLC 4.25% New 235,956 $18.2M
Bank of New York Mellon Corp 0.00% Reduce -6.8% 215,185 $16.6M
AQR Capital Management 0.01% Add +151.6% 181,209 $14.0M
Gendell Jeffrey L 0.25% Add +119.3% 174,949 $13.5M
UBS Group AG 0.00% Add +55.3% 165,047 $12.7M
Two Sigma Advisers, LP 0.02% Add +96.5% 158,200 $12.2M
Cubist Systematic Strategies, LLC 0.17% Reduce -29.6% 154,165 $11.9M
Walleye Capital LLC 0.10% Add +275.9% 150,806 $11.6M
Two Sigma Investments, LP 0.02% Add +7.2% 148,205 $11.4M
Renaissance Technologies 0.01% Reduce -0.1% 146,500 $11.3M
Assenagon Asset Management S.A. 0.01% Add +512.0% 129,397 $10.0M
Voloridge Investment Management, LLC 0.03% Reduce -21.3% 126,086 $9.7M
Principal Financial Group Inc. 0.00% Reduce -12.6% 119,935 $9.3M
Hotchkis & Wiley Capital Management LLC 0.03% Add +58.8% 111,506 $8.6M
Public Sector Pension Investment Board 0.03% Add +14.0% 96,866 $7.5M
Jane Street Group, LLC 0.01% Reduce -20.9% 92,766 $7.2M
HRT Financial LP 0.03% Add +177.7% 89,537 $6.9M
Citadel Advisors 0.01% Reduce -11.8% 83,389 $6.4M
Numerai GP LLC 0.89% Add +29.6% 81,541 $6.3M
Invesco Ltd. 0.00% Reduce -63.9% 80,845 $6.2M
Panagora Asset Management Inc. 0.02% Add +0.4% 79,459 $6.1M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Reduce -38.2% 77,358 $6.0M
ProShare Advisors LLC 0.01% Add +2.9% 77,261 $6.0M
Mutual of America Capital Management LLC 0.06% Reduce -2.0% 75,695 $5.8M
Rhumbline Advisers 0.00% Reduce -11.0% 72,488 $5.6M
Leeward Investments, LLC - MA 0.28% Reduce -2.2% 72,124 $5.6M
Sei Investments Co. 0.01% Add +19.9% 66,521 $5.1M
Legal & General Group Plc 0.00% Reduce -6.4% 65,187 $5.0M
American Century Companies Inc. 0.00% Add +12.3% 62,702 $4.8M
Teacher Retirement System of Texas 0.02% Add +4.0% 62,398 $4.8M
Ameriprise Financial Inc. 0.00% Reduce -29.6% 60,015 $4.6M
BNP Paribas Financial Markets 0.00% Add +160.4% 52,033 $4.0M
ExodusPoint Capital Management, LP 0.05% Reduce -14.5% 48,560 $3.7M
Swiss National Bank 0.00% Add +0.8% 48,403 $3.7M
Barclays PLC 0.00% Reduce -10.0% 46,341 $3.6M
AlphaQuest LLC 0.23% Add +56.8% 45,174 $3.5M
ZWJ Investment Counsel Inc. 0.12% Add +13.7% 44,830 $3.5M
Moran Wealth Management, LLC 0.10% Add +4.1% 44,357 $3.4M
PDT Partners, LLC 0.21% Add +218.9% 42,876 $3.3M
Verition Fund Management LLC 0.02% Add +30.3% 42,515 $3.3M
Edgestream Partners, L.P. 0.09% Reduce -11.8% 41,522 $3.2M
Deutsche Bank AG 0.00% Add +150.3% 41,030 $3.2M
Engineers Gate Manager LP 0.04% Add +4.2% 40,710 $3.1M
Voya Investment Management LLC 0.00% Reduce -72.7% 40,233 $3.1M
Healthcare of Ontario Pension Plan Trust Fund 0.01% New 38,971 $3.0M
Algert Global LLC 0.04% Add +13.7% 34,728 $2.7M
Wells Fargo & Company 0.00% Reduce -29.8% 33,891 $2.6M
Dark Forest Capital Management LP 0.10% Add +15.8% 33,798 $2.6M
Connors Investor Services Inc. 0.22% Add +56.1% 33,673 $2.6M
Y-Intercept (Hong Kong) Ltd 0.06% Reduce -26.9% 30,152 $2.3M
CANADA LIFE ASSURANCE Co 0.00% Add +1.2% 29,631 $2.3M
Ingalls & Snyder LLC 0.07% No change 28,927 $2.2M
Gsa Capital Partners LLP 0.18% Add +46.5% 28,274 $2.2M
Jump Financial, LLC 0.03% Add +127.5% 27,889 $2.2M
Franklin Resources Inc. 0.00% Add +0.7% 27,868 $2.2M
Bahl & Gaynor LLC 0.01% Add +2.8% 27,306 $2.1M
Acadian Asset Management LLC 0.00% Add +483.0% 27,314 $2.1M
Alliancebernstein L.P. 0.00% No change 27,223 $2.1M
Western Standard LLC 1.11% New 27,000 $2.1M
Ieq Capital, LLC 0.01% Add +164.5% 26,390 $2.0M
Canada Pension Plan Investment Board 0.00% New 26,000 $2.0M
Trexquant Investment LP 0.02% Reduce -56.8% 25,666 $2.0M
State of New Jersey Common Pension Fund D 0.01% Add +15.8% 25,325 $2.0M
Schonfeld Strategic Advisors LLC 0.01% Reduce -14.2% 25,264 $1.9M
Prudential Financial Inc. 0.00% Reduce -3.4% 25,159 $1.9M
Holocene Advisors, LP 0.00% Add +26.2% 24,530 $1.9M
T. Rowe Price Associates Inc. 0.00% Add +4.4% 23,362 $1.8M
California State Teachers Retirement System 0.00% Add +0.0% 23,063 $1.8M
Huber Capital Management LLC 0.28% Add +11.9% 22,548 $1.7M
Citigroup Inc. 0.00% Reduce -21.4% 22,251 $1.7M
Intech Investment Management LLC 0.01% Add +2.7% 21,533 $1.7M
Cerity Partners LLC 0.00% Add +41.9% 21,042 $1.6M
SG Americas Securities, LLC 0.01% Reduce -61.9% 19,389 $1.5M
Brevan Howard Capital Management LP 0.02% Add +100.9% 18,184 $1.4M
Thrivent Financial for Lutherans 0.00% Reduce -49.9% 17,915 $1.4M
Public Employees Retirement System of Ohio 0.00% Add +15.9% 17,334 $1.3M
Quantbot Technologies LP 0.04% Reduce -45.4% 16,971 $1.3M
Wedge Capital Management L L P 0.02% Add +9.3% 16,345 $1.3M
Occudo Quantitative Strategies LP 0.15% Reduce -14.8% 16,274 $1.3M
HSBC Holdings PLC 0.00% Add +26.8% 15,031 $1.2M
MetLife Investment Management, LLC 0.01% No change 14,889 $1.1M
State of Tennessee, Department of Treasury 0.00% Reduce -12.2% 14,566 $1.1M
Illinois Municipal Retirement Fund 0.01% Add +6.7% 13,785 $1.1M
Creative Planning 0.00% Add +239.5% 13,631 $1.1M
State of Alaska, Department of Revenue 0.01% Reduce -8.2% 13,627 $1.1M
Envestnet Asset Management Inc. 0.00% Reduce -21.5% 13,542 $1.0M
Jacobs Levy Equity Management, Inc. 0.00% Reduce -40.7% 13,089 $1.0M
Capital Fund Management S.A. 0.01% New 12,583 $971K
Manufacturers Life Insurance Company, The 0.00% Reduce -5.7% 12,378 $955K
Squarepoint Ops LLC 0.00% Add +58.1% 12,216 $943K
QSV Equity Investors LLC 0.96% No change 12,165 $939K
CM Management, LLC 0.77% Add +20.0% 12,000 $926K
Round Hill Asset Management 0.61% No change 11,974 $924K
Comerica Bank 0.00% Reduce -2.1% 11,838 $913K
Point72 Asset Management 0.00% Add +6.7% 11,793 $910K
Linden Thomas Advisory Services, LLC 0.09% Add +0.3% 11,772 $908K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Reduce -15.2% 11,674 $901K
Louisiana State Employees Retirement System 0.01% Reduce -2.6% 11,400 $880K
Vest Financial, LLC 0.01% Reduce -38.6% 11,210 $865K
Balyasny Asset Management L.P. 0.00% Reduce -76.7% 11,000 $849K
EntryPoint Capital, LLC 0.32% Add +311.6% 10,685 $824K
Cwm, LLC 0.00% Add +85.2% 10,172 $785K
James Investment Research, Inc. 0.08% Add +19.4% 9,949 $768K
Quantinno Capital Management LP 0.00% New 9,814 $757K
Susquehanna International Group, LLP 0.00% Reduce -73.7% 9,679 $747K
Freestone Grove Partners LP 0.01% No change 9,277 $716K
Entropy Technologies, LP 0.05% Reduce -11.6% 9,179 $708K
New York State Common Retirement Fund 0.00% No change 8,911 $688K
Aquatic Capital Management LLC 0.01% Reduce -32.8% 8,758 $676K
New York State Teachers Retirement System 0.00% Reduce -31.3% 7,962 $614K
Yousif Capital Management, LLC 0.01% Reduce -17.1% 7,694 $594K
Wealth Enhancement Advisory Services, LLC 0.00% Add +88.3% 7,331 $573K
Arizona State Retirement System 0.00% Add +0.8% 7,373 $569K
Semanteon Capital Management, LP 0.71% New 7,324 $565K
Amalgamated Bank 0.00% Add +1.4% 7,223 $557K
Russell Investments Group, Ltd. 0.00% Add +33.0% 7,114 $549K
Teachers Retirement System of the State of Kentucky 0.00% Reduce -3.5% 7,082 $546K
Police & Firemen's Retirement System of New Jersey 0.00% Add +23.5% 6,949 $536K
LPL Financial LLC 0.00% Add +2.3% 6,846 $528K
Capstone Investment Advisors, LLC 0.01% New 6,792 $524K
Aigen Investment Management, LP 0.08% Add +5.0% 6,743 $520K
State Board of Administration of Florida Retirement System 0.00% Reduce -0.4% 6,727 $519K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% No change 6,649 $513K
Connor, Clark & Lunn Investment Management Ltd. 0.00% New 6,359 $491K
Commonwealth of Pennsylvania Public School Empls Retrmt SYS 0.00% Reduce -1.3% 6,324 $488K
Mercer Global Advisors Inc. 0.00% New 6,309 $487K
Meeder Asset Management Inc. 0.03% Add +93.4% 6,238 $481K
Inspire Investing, LLC 0.04% Add +27.1% 5,872 $453K
R Squared Ltd 0.19% Add +6.0% 5,841 $451K
Oregon Public Employees Retirement Fund 0.01% Reduce -1.7% 5,631 $434K
Guggenheim Capital LLC 0.00% Add +0.3% 5,567 $430K
Mariner, LLC 0.00% New 5,562 $429K
Tredje AP-fonden 0.00% Reduce -63.6% 5,478 $423K
NewEdge Advisors, LLC 0.00% Add +19.1% 5,363 $414K
Oxford Asset Management LLP 0.13% Add +62.0% 5,237 $404K
Ensign Peak Advisors, Inc 0.00% Reduce -55.1% 5,009 $386K
KLP Kapitalforvaltning As 0.00% No change 5,000 $386K
Bell & Brown Wealth Advisors, LLC 0.13% Add +0.0% 4,967 $383K
Man Group plc 0.00% Add +8.2% 4,918 $379K
Polymer Capital Management (US) LLC 0.05% Add +46.2% 4,910 $379K
Keybank National Association 0.00% Reduce -5.8% 4,615 $356K
Royal Bank of Canada 0.00% Reduce -75.1% 4,604 $355K
Hudson Edge Investment Partners Inc. 0.06% Add +1.5% 4,593 $354K
Amundi 0.00% Add +5.0% 4,490 $354K
Tudor Investment Corporation 0.00% Reduce -81.5% 4,215 $325K
Bailard, Inc. 0.01% New 4,200 $324K
Legacy Wealth Asset Management, LLC 0.08% Reduce -2.1% 4,063 $314K
Pictet Asset Management Holding SA 0.00% No change 4,052 $313K
DRW Securities, LLC 0.02% Reduce -23.1% 3,929 $299K
Diversified Trust Co. 0.01% Add +8.2% 3,798 $293K
Petrus Trust Company, LTA 0.03% Reduce -39.1% 3,738 $288K
Twinbeech Capital LP 0.01% Reduce -88.7% 3,656 $282K
Arax Advisory Partners 0.00% Add +3339.1% 3,611 $279K
Maryland State Retirement & Pension System 0.01% Reduce -50.9% 3,570 $275K
Atom Investors LP 0.02% New 3,425 $264K
Inceptionr LLC 0.06% New 3,275 $253K
Mackenzie Financial Corp. 0.00% Reduce -11.3% 3,156 $244K
Public Employees Retirement Association of Colorado 0.00% No change 3,018 $233K
MQS Management LLC 0.13% Reduce -31.5% 2,954 $228K
Captrust Financial Advisors 0.00% New 2,954 $228K
State of Wisconsin Investment Board 0.00% Reduce -69.6% 2,920 $225K
Farringdon Capital, Ltd. 0.05% New 2,746 $212K
CIBC Bancorp USA Inc. 0.00% — 2,679 $207K
Dynamic Technology Lab Private Ltd 0.03% Reduce -84.3% 2,640 $204K
Tower Research Capital LLC (TRC) 0.01% Reduce -62.5% 2,517 $194K
Ameritas Investment Partners, Inc. 0.01% Reduce -19.5% 2,099 $162K
Nisa Investment Advisors, LLC 0.00% Add +8.8% 1,917 $148K
PNC Financial Services Group, Inc. 0.00% Reduce -5.0% 1,669 $129K
Sterling Capital Management LLC 0.00% Add +155.6% 1,654 $128K
Smartleaf Asset Management LLC 0.01% Add +75.4% 1,317 $101K
FMR LLC 0.00% Reduce -49.4% 1,006 $78K
Murphy & Mullick Capital Management Corp 0.06% No change 962 $74K
HM Payson & Co. 0.00% No change 909 $70K
Essential Partners LLC 0.02% Add +783.3% 901 $70K
MAI Capital Management 0.00% Add +13.3% 900 $69K
KBC Group NV 0.00% No change 860 $66K
Vestcor Inc 0.00% Reduce -62.0% 813 $63K
Point72 (DIFC) Ltd 0.00% New 765 $59K
Signaturefd, LLC 0.00% Reduce -0.7% 600 $46K
Danske Bank A/S 0.00% No change 600 $46K
EverSource Wealth Advisors, LLC 0.00% Add +12.1% 593 $46K
Allworth Financial LP 0.00% Add +31.0% 588 $45K
Versant Capital Management, Inc 0.01% Add +378.1% 545 $42K
DekaBank Deutsche Girozentrale 0.00% No change 515 $39K
Covestor Ltd 0.02% Add +39.0% 463 $36K
Shell Asset Management Co. 0.00% Reduce -63.7% 425 $33K
Tsfg, LLC 0.00% No change 370 $29K
US Bancorp \de 0.00% Reduce -91.9% 371 $29K
Osaic Holdings, Inc. 0.00% Add +8.6% 304 $26K
Rockefeller Capital Management L.P. 0.00% New 323 $25K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% Reduce -7.5% 307 $24K
Jones Financial Companies LLLP 0.00% Add +13.4% 237 $18K
Crews Bank & Trust 0.00% No change 200 $15K
Westside Investment Management, Inc. 0.00% No change 199 $15K
Clearstead Advisors, LLC 0.00% Add +88.8% 185 $14K
State of Wyoming 0.00% Reduce -78.5% 172 $13K
Caitong International Asset Management Co., Ltd 0.01% Reduce -67.9% 159 $12K
Barrow Hanley Mewhinney & Strauss LLC 0.00% No change 157 $12K
Hantz Financial Services, Inc. 0.00% Add +675.0% 155 $12K
Aster Capital Management (DIFC) Ltd 0.01% New 149 $11K
Farther Finance Advisors, LLC 0.00% Add +2.2% 138 $11K
Optiver Holding B.V. 0.00% Add +156.0% 128 $10K
Parallel Advisors, LLC 0.00% Add +287.5% 124 $10K
Quarry LP 0.00% Add +476.2% 121 $9K
Rise Advisors, LLC 0.00% No change 103 $8K
STRS Ohio 0.00% Reduce -98.7% 100 $8K
Harbor Capital Advisors, Inc. 0.00% No change 87 $7K
True Wealth Design, LLC 0.00% Add +30.5% 77 $6K
GAMMA Investing LLC 0.00% Reduce -67.1% 75 $6K
Harbour Investments, Inc. 0.00% No change 67 $5K
Bessemer Group Inc. 0.00% Reduce -18.4% 71 $5K
Private Wealth Asset Management, LLC 0.00% No change 63 $5K
UMB Bank, n.a. 0.00% Reduce -32.6% 60 $5K
IFP Advisors, Inc 0.00% Reduce -5.1% 56 $4K
Quadrant Capital Group LLC 0.00% New 56 $4K
High Note Wealth, LLC 0.00% New 52 $4K
Salomon & Ludwin, LLC 0.00% New 48 $4K
Root Financial Partners, LLC 0.00% New 45 $3K
Mitsubishi UFJ Asset Management Co., Ltd. 0.00% No change 42 $3K
Point72 Asia (Singapore) Pte. Ltd. 0.00% Reduce -98.0% 39 $3K
Rothschild Investment LLC 0.00% Reduce -2.9% 34 $3K
Private Wealth Management Group, LLC 0.00% Reduce -53.5% 20 $2K
Fifth Third Bancorp 0.00% Reduce -71.0% 18 $1K
Farmers & Merchants Investments Inc. 0.00% No change 18 $1K
Hemington Wealth Management 0.00% Add +57.1% 22 $1K
Bare Financial Services, Inc 0.00% Add +100.0% 12 $926
Sunbelt Securities, Inc. 0.00% New 11 $849
WPG Advisers, LLC 0.00% Add +25.0% 10 $772
Fortitude Family Office, LLC 0.00% Add +50.0% 9 $694
First Horizon Corp. 0.00% — 9 $694
JFS Wealth Advisors, LLC 0.00% Add +166.7% 8 $618
Wealthspire Advisors, LLC 0.00% New 8 $617
Parkside Financial Bank & Trust 0.00% Reduce -69.6% 7 $541
Bell Investment Advisors, Inc 0.00% New 6 $463
DiNuzzo Private Wealth, Inc. 0.00% Add +25.0% 5 $438
SJS Investment Consulting Inc. 0.00% New 2 $155
Abound Wealth Management 0.00% No change 2 $155
Bay Harbor Wealth Management, LLC 0.00% New 2 $154
Blue Trust, Inc. 0.00% Reduce -99.7% 2 $154
Rialto Wealth Management, LLC 0.00% No change 1 $78
SBI Securities Co., Ltd. 0.00% No change 1 $77
HFM Investment Advisors, LLC 0.00% Reduce -50.0% 1 $77
Simplex Trading, LLC 0.00% New 4 $0
Cloud Capital Management, LLC 0.00% New 4 $0

"% of holder's portfolio" is IOSP's weight in each manager's 13F, not the share of Innospec Inc. the manager owns.