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Disclosery

IOSP INNOSPEC INC

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COM (common), issuer CIK 1054905

274 managers (281 13F filers) reported a position in IOSP shares at 2026-06-30, 24,593,751 shares in all. 42 filers opened a position and 27 filers sold out during the quarter.

Managers
274
13F filers
281
New
42
Added
103
Reduced
97
Sold out
27
Shares held by filers
24,593,751

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
Sterling Capital Management LLC508$41.3K<0.01%-28113F-HRTimeline
HM PAYSON & CO500$40.7K<0.01%-40913F-HRTimeline
DekaBank Deutsche Girozentrale515$37K<0.01%013F-HRTimeline
Versant Capital Management, Inc452$36.8K<0.01%+12013F-HRTimeline
MEEDER ASSET MANAGEMENT INCin group Meeder Advisory Services, Inc.438$35.6K<0.01%013F-HRTimelineGroup
CDKV HOLDINGS LLC400$32.6K0.03%013F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDin group NOMURA ASSET MANAGEMENT CO LTD370$30.1K<0.01%013F-HRTimelineGroup
TSFG, LLC370$30K<0.01%013F-HRTimeline
Farther Finance Advisors, LLC348$28.3K<0.01%+16913F-HRTimeline
Quarry LP333$27.1K<0.01%+1013F-HRTimeline
Global Retirement Partners, LLC286$23.3K<0.01%13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.282$22.9K<0.01%-1513F-HRTimelineGroup
IFP Advisors, Inc277$22.5K<0.01%+17113F-HRTimeline
Essential Partners LLC252$20.5K0.01%+1213F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.228$18.6K<0.01%+19813F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC205$16.7K<0.01%+2313F-HRTimeline
Salomon & Ludwin, LLC200$16.4K<0.01%new13F-HRTimeline
Crews Bank & Trust200$16.3K<0.01%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…195$15.9K<0.01%-10213F-HRTimelineGroup
Kemnay Advisory Services Inc.181$14.7K<0.01%new13F-HRTimeline
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…177$14.4K<0.01%013F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC154$13K<0.01%+4913F-HRTimelineGroup
BARROW HANLEY MEWHINNEY & STRAUSS LLC157$12.8K<0.01%013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\154$12.5K<0.01%+1913F-HRTimelineGroup
True Wealth Design, LLC129$10.5K<0.01%+7313F-HRTimeline
Parallel Advisors, LLC129$10.5K<0.01%-3913F-HRTimeline
Basecamp Wealth Advisors LLC120$9.77K<0.01%+2913F-HRTimeline
SJS Investment Consulting Inc.116$9.44K<0.01%+7113F-HRTimeline
Kilter Group LLC106$8.63K<0.01%013F-HRTimeline
STRS OHIO100$8.14K<0.01%013F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.103$8K<0.01%-3013F-HRTimeline
Clearstead Advisors, LLC87$7.08K<0.01%new13F-HRTimeline
Quantbot Technologies LP83$6.75K<0.01%-8,69713F-HRTimeline
UMB Bank, n.a.67$5.45K<0.01%+1013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Private Wealth Asset Management, LLC63$5.13K<0.01%013F-HRTimeline
Bare Financial Services, Inc60$4.88K<0.01%+4313F-HRTimeline
Wealth Enhancement Trust Services, Inc.46$3.74K<0.01%new13F-HR/ATimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…42$3.42K<0.01%013F-HRTimelineGroup
Cedar Mountain Advisors, LLC39$3.17K<0.01%013F-HRTimeline
CVA Family Office, LLC35$2.85K<0.01%+713F-HRTimeline
High Note Wealth, LLC31$2.52K<0.01%+513F-HRTimeline
MassMutual Private Wealth & Trust, FSB29$2.36K<0.01%013F-HRTimeline
Keating Financial Advisory Services, In…28$2.28K<0.01%+1813F-HRTimeline
JFS WEALTH ADVISORS, LLC23$1.87K<0.01%+513F-HRTimeline
Noble Wealth Management PBC19$1.55K<0.01%new13F-HRTimeline
Fortitude Family Office, LLC18$1.47K<0.01%-213F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…17$1.38K<0.01%new13F-HRTimelineGroup
TD PRIVATE CLIENT WEALTH LLC17$1.38K<0.01%new13F-HRTimeline
Rialto Wealth Management, LLC17$1.38K<0.01%+1413F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…15$1.22K<0.01%-313F-HRTimelineGroup
FIDUCIARY FINANCIAL ADVISORS10$814<0.01%new13F-HRTimeline
FIRST HORIZON CORP9$733<0.01%013F-HRTimeline
Creative Capital Management Investments…9$733<0.01%new13F-HRTimeline
Institute for Wealth Management, LLC.8$679<0.01%new13F-HRTimeline
HARBOUR INVESTMENTS, INC.8$651<0.01%013F-HRTimeline
WPG Advisers, LLC8$651<0.01%+313F-HRTimeline
HFM Investment Advisors, LLC7$570<0.01%+513F-HRTimeline
Plante Moran Financial Advisors, LLC6$488<0.01%new13F-HRTimeline
DiNuzzo Private Wealth, Inc.5$407<0.01%013F-HRTimeline
JPL Wealth Management, LLC5$407<0.01%new13F-HRTimeline
Ankerstar Wealth, LLC4$326<0.01%013F-HRTimeline
GILPIN WEALTH MANAGEMENT, LLC4$326<0.01%013F-HRTimeline
Rossby Financial, LCC3$244<0.01%new13F-HRTimeline
Bay Harbor Wealth Management, LLC2$163<0.01%+113F-HRTimeline
Fulcrum Asset Management LLP2$161<0.01%new13F-HRTimeline
DecisionPoint Financial, LLC1$82<0.01%new13F-HRTimeline
RAFFA WEALTH MANAGEMENT, LLC1$81<0.01%new13F-HRTimeline
Davis Capital Management1$81<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.1$81<0.01%013F-HRTimeline
CoreCap Advisors, LLC1$81<0.01%new13F-HRTimeline
LRI Investments, LLC1$81<0.01%new13F-HRTimeline
Avion Wealth6$00%new13F-HRTimelineValue filed as zero, left out of ratios.
Evolution Advisers, Inc.2$00%new13F-HRTimelineValue filed as zero, left out of ratios.
Navigoe, LLC2$00%new13F-HRTimelineValue 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