Innospec Inc. (IOSP) Insider Ownership

Historic Insider Ownership Trends

Innospec's three largest insider shareholders as of March 23, 2026 are Patrick Williams (President Ceo, 231.53K shares), Ian Malcolm Mcrobbie (Senior Vp Rt, 36.68K shares), Brian Watt (Vp, Strat Plan Regulatory, 25.12K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Patrick Williams President Ceo 231,535 0 03 Mar, 2026
Ian Malcolm Mcrobbie Senior Vp Rt 36,679 0 01 Mar, 2023
Brian Watt Vp, Strat Plan Regulatory 25,124 0 13 May, 2021
Ian Cleminson Evp Cfo 20,357 0 06 Mar, 2026
Philip John Boon Executive Vp Business Ops 20,079 0 24 Feb, 2025
Catherine Hessner Senior Vp Human Resources 15,194 0 13 May, 2021
David B. Jones Svp, Gc Cco 14,693 0 03 Mar, 2026
Robert I Paller 14,343 0 28 Feb, 2024
Corbin Barnes Svp, Corporate Dev And Ir 13,080 0 03 Mar, 2026
Milton C Blackmore 10,530 0 06 Mar, 2026
Hardy Louis Iii Griffin Svp, Human Resources 10,161 0 03 Mar, 2026
Larry Padfield 9,453 0 06 Mar, 2026
David Landless 7,632 0 06 Mar, 2026
Leslie J Parrette 7,376 0 24 Feb, 2026
Claudia Poccia 6,508 0 06 Mar, 2026
Elizabeth K Arnold 6,376 0 25 Feb, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
27 Feb, 2026 David Landless Common Stock D 287 $76.30 7,939 D S
27 Feb, 2026 Larry Padfield Common Stock D 287 $76.30 9,760 D S
27 Feb, 2026 Ian Cleminson Common Stock D 1,149 $76.30 21,588 D S
27 Feb, 2026 Milton C Blackmore Common Stock D 287 $76.30 10,837 D S
27 Feb, 2026 Claudia Poccia Common Stock D 57 $76.30 6,570 D S
27 Feb, 2026 Larry Padfield Common Stock D 307 $76.79 9,453 D S
27 Feb, 2026 David Landless Common Stock D 307 $76.79 7,632 D S
27 Feb, 2026 Milton C Blackmore Common Stock D 307 $76.79 10,530 D S
27 Feb, 2026 Claudia Poccia Common Stock D 62 $76.79 6,508 D S
27 Feb, 2026 Ian Cleminson Common Stock D 1,231 $76.79 20,357 D S
27 Feb, 2026 Hardy Louis Iii Griffin Common Stock D 401 $78.34 10,161 D F
27 Feb, 2026 David Landless Common Stock D 594 $76.56 7,632 D S
27 Feb, 2026 Corbin Barnes Common Stock D 166 $78.34 13,080 D F
27 Feb, 2026 Milton C Blackmore Common Stock D 594 $76.56 10,530 D S
27 Feb, 2026 Claudia Poccia Common Stock D 119 $76.56 6,508 D S
27 Feb, 2026 David B. Jones Common Stock D 875 $78.34 15,721 D F
27 Feb, 2026 Patrick Williams Common Stock D 7,966 $78.34 231,535 D F
27 Feb, 2026 Larry Padfield Common Stock D 594 $76.56 9,453 D S
27 Feb, 2026 Ian Cleminson Common Stock D 2,380 $76.56 20,357 D S
03 Mar, 2026 David B. Jones Common Stock D 1,028 $75.64 14,693 D S