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Disclosery

IOSP INNOSPEC INC

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COM (common), issuer CIK 1054905

265 managers (267 13F filers) reported a position in IOSP shares at 2025-09-30, 23,961,237 shares in all. 31 filers opened a position and 25 filers sold out during the quarter.

Managers
265
13F filers
267
New
31
Added
108
Reduced
97
Sold out
25
Shares held by filers
23,961,237

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…593$45.8K<0.01%+6413F-HRTimelineGroup
Allworth Financial LP588$45.4K<0.01%+13913F-HRTimeline
Versant Capital Management, Inc545$42.1K0.01%+43113F-HRTimeline
DekaBank Deutsche Girozentrale515$39K<0.01%013F-HRTimeline
Covestor Ltd463$36K0.02%+13013F-HRTimeline
SHELL ASSET MANAGEMENT CO425$33K<0.01%-74513F-HRTimeline
TSFG, LLC370$29K<0.01%013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\371$28.6K<0.01%-4,21513F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.304$26.2K<0.01%+2413F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…323$25K<0.01%new13F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …307$24K<0.01%-2513F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP237$18.4K<0.01%+2813F-HRTimelineGroup
Crews Bank & Trust200$15.4K<0.01%013F-HRTimeline
Westside Investment Management, Inc.199$15.4K<0.01%013F-HRTimeline
Clearstead Advisors, LLC185$14.3K<0.01%+8713F-HRTimeline
State of Wyoming172$13.3K<0.01%-62913F-HRTimeline
Caitong International Asset Management …159$12.3K0.01%-33713F-HRTimeline
BARROW HANLEY MEWHINNEY & STRAUSS LLC157$12.1K<0.01%013F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.155$12K<0.01%+13513F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Aster Capital Management (DIFC) Ltd149$11.5K0.01%new13F-HRTimeline
Farther Finance Advisors, LLC138$10.6K<0.01%+313F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.128$9.88K<0.01%+7813F-HRTimelineGroup
Parallel Advisors, LLC124$9.57K<0.01%+9213F-HRTimeline
Quarry LP121$9.34K<0.01%+10013F-HRTimeline
Rise Advisors, LLC103$7.95K<0.01%013F-HRTimeline
STRS OHIO100$7.72K<0.01%-7,30013F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.87$7K<0.01%013F-HRTimeline
True Wealth Design, LLC77$5.94K<0.01%+1813F-HRTimeline
GAMMA Investing LLC75$5.79K<0.01%-15313F-HRTimeline
HARBOUR INVESTMENTS, INC.67$5.17K<0.01%013F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC71$5K<0.01%-1613F-HRTimelineGroup
Private Wealth Asset Management, LLC63$4.86K<0.01%013F-HRTimeline
UMB Bank, n.a.60$4.63K<0.01%-2913F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
IFP Advisors, Inc56$4.32K<0.01%-313F-HR/ATimeline
QUADRANT CAPITAL GROUP LLC56$4.32K<0.01%new13F-HRTimeline
High Note Wealth, LLC52$4.01K<0.01%new13F-HRTimeline
Salomon & Ludwin, LLC48$3.78K<0.01%new13F-HRTimeline
Root Financial Partners, LLC45$3.47K<0.01%new13F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…42$3.24K<0.01%013F-HRTimelineGroup
Point72 Asia (Singapore) Pte. Ltd.39$3.01K<0.01%-1,91113F-HRTimeline
ROTHSCHILD INVESTMENT LLC34$2.62K<0.01%-113F-HRTimeline
Private Wealth Management Group, LLC20$1.54K<0.01%-2313F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…18$1.39K<0.01%-4413F-HRTimelineGroup
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…18$1.39K<0.01%013F-HRTimelineGroup
Hemington Wealth Management22$1K<0.01%+813F-HRTimeline
Bare Financial Services, Inc12$926<0.01%+613F-HRTimeline
Sunbelt Securities, Inc.11$849<0.01%new13F-HRTimeline
WPG Advisers, LLC10$772<0.01%+213F-HRTimeline
FIRST HORIZON CORP9$694<0.01%13F-HRTimeline
Fortitude Family Office, LLC9$694<0.01%+313F-HRTimeline
JFS WEALTH ADVISORS, LLC8$618<0.01%+513F-HRTimeline
Wealthspire Advisors, LLC8$617<0.01%new13F-HRTimeline
Parkside Financial Bank & Trust7$541<0.01%-1613F-HRTimeline
Bell Investment Advisors, Inc6$463<0.01%new13F-HRTimeline
DiNuzzo Private Wealth, Inc.5$438<0.01%+113F-HRTimeline
SJS Investment Consulting Inc.2$155<0.01%new13F-HRTimeline
Abound Wealth Management2$155<0.01%013F-HRTimeline
Bay Harbor Wealth Management, LLC2$154<0.01%new13F-HRTimeline
Blue Trust, Inc.2$154<0.01%-67013F-HRTimeline
Rialto Wealth Management, LLC1$78<0.01%013F-HRTimeline
SBI Securities Co., Ltd.1$77<0.01%013F-HRTimeline
HFM Investment Advisors, LLC1$77<0.01%-113F-HRTimeline
SIMPLEX TRADING, LLC4$00%new13F-HRTimelineValue filed as zero, left out of ratios.
Cloud Capital Management, LLC4$00%new13F-HRTimelineValue filed as zero, left out of ratios.
MassMutual Private Wealth & Trust, FSB0$00%new13F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.

Events

  • Allspring Global Investments Holdings, LLC reported 1,161,421 IOSP shares, 4.7% of the class, as of 2026-09-30, in a 13G/A filed 2026-10-07. 0001890906-26-000074

    Accepted , ingested

  • Allspring Global Investments Holdings, LLC reported 1,161,421 IOSP shares, 4.7% of the class, as of 2026-09-30, in a 13G filed 2026-10-07. 0001890906-26-000068

    Accepted , ingested