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Public ownership evidence

Innospec Inc. (IOSP) Ownership Disclosures

Read IOSP insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-10-062026-10-01BARNES CORBINA2,642Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-01 and its public availability date is 2026-10-06. Subtracting those calendar dates gives 5 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001193125-26-414699 ↗SEC 0001193125-26-414694 ↗SEC 0001193125-26-414685 ↗

Recent Form 4 activity

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2026-10-062026-10-01BARNES CORBINA2,642Not reported
2026-10-062026-10-01GRIFFIN HARDY LOUIS IIIA2,685Not reported
2026-10-052026-10-01Cleminson IanA4,792Not reported
2026-10-052026-10-01MCROBBIE IAN MALCOLMA3,164Not reported
2026-10-052026-10-01Jones David B.A3,188Not reported
2026-10-052026-10-01Williams PatrickA22,203Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Corient Private Wealth LP2026-06-302026-08-282,982$242,707None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2527,765$2,259,793None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,259,793$27,765,000None
Assenagon Asset Management S.A.2026-06-302026-08-22272,782$22,201,727None
DEPRINCE RACE & ZOLLO INC2026-06-302026-08-2193,348$7,597,594None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2014,522$1,181,965None
Ensign Peak Advisors, Inc2026-03-312026-08-191,209$88,281None
Ensign Peak Advisors, Inc2025-12-312026-08-191,209$92,537None
Ensign Peak Advisors, Inc2025-09-302026-08-195,009$386,494None
Fulcrum Asset Management LLP2026-06-302026-08-192$161None
CAPSTONE INVESTMENT ADVISORS, LLC2026-06-302026-08-189,993$813,330None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-18763$62,101None
CENTAURUS FINANCIAL, INC.2026-06-302026-08-181,444$118,000None
DARK FOREST CAPITAL MANAGEMENT LP2026-06-302026-08-1538,862$3,162,978None
SEI INVESTMENTS CO2026-06-302026-08-15151,313$12,315,365None
SEI INVESTMENTS CO2026-06-302026-08-154,738$385,670None
Murphy & Mullick Capital Management Corp2026-06-302026-08-15962$78,297None
Aster Capital Management (DIFC) Ltd2026-06-302026-08-15965$78,541None
JPL Wealth Management, LLC2026-06-302026-08-155$407None
Basecamp Wealth Advisors LLC2026-06-302026-08-15120$9,767None
Quarry LP2026-06-302026-08-15333$27,103None
XTX Topco Ltd2026-06-302026-08-1520,188$1,643,101None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15355,658$28,947,005None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15355,658$28,947,005None
ExodusPoint Capital Management, LP2026-06-302026-08-1523,810$1,937,896None
Qube Research & Technologies Ltd2026-06-302026-08-15285,849$23,265,250None
OSAIC HOLDINGS, INC.2026-06-302026-08-15282$22,950None
Schonfeld Strategic Advisors LLC2026-06-302026-08-1513,276$1,080,532None
Squarepoint Ops LLC2026-06-302026-08-1510,379$844,747None
Man Group plc2026-06-302026-08-155,814$473,201None
Man Group plc2026-06-302026-08-15337$27,428None
Trexquant Investment LP2026-06-302026-08-1560,528$4,926,374None
MetLife Investment Management, LLC2026-06-302026-08-1514,712$1,197,410None
Engineers Gate Manager LP2026-06-302026-08-156,340$516,013None
State of Tennessee, Department of Treasury2026-06-302026-08-159,756$794,041None
PDT Partners, LLC2026-06-302026-08-1531,176$2,537,415None
VOLORIDGE INVESTMENT MANAGEMENT, LLC2026-06-302026-08-1531,857$2,592,841None
Legal & General Group Plc2026-06-302026-08-1515,738$1,280,916None
Legal & General Group Plc2026-06-302026-08-155,316$432,669None
Legal & General Group Plc2026-06-302026-08-1537,787$3,075,484None
HRT FINANCIAL LP2026-06-302026-08-1584,349$6,865,000None
Ensign Peak Advisors, Inc2026-06-302026-08-151,059$86,192None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-153,615$294,225None
Aigen Investment Management, LP2026-06-302026-08-153,647$296,829None
FIDUCIARY FINANCIAL ADVISORS2026-06-302026-08-151$81None
FIDUCIARY FINANCIAL ADVISORS2026-06-302026-08-153$244None
FIDUCIARY FINANCIAL ADVISORS2026-06-302026-08-152$163None
FIDUCIARY FINANCIAL ADVISORS2026-06-302026-08-154$326None
Gotham Asset Management, LLC2026-06-302026-08-154,848$394,579None
BROWN ADVISORY INC2026-06-302026-08-157,242$589,426None

90-day public filing window, up to 50 source positions.

Corient Private Wealth LP ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Assenagon Asset Management S.A. ↗DEPRINCE RACE & ZOLLO INC ↗MERCER GLOBAL ADVISORS INC /ADV ↗Ensign Peak Advisors, Inc ↗Ensign Peak Advisors, Inc ↗Ensign Peak Advisors, Inc ↗Fulcrum Asset Management LLP ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.