Insider Transactions Reported by 17 Insiders of INNOSPEC INC.

Symbol
IOSP on Nasdaq
Location
Englewood, CO

Insiders trading volume in the past year

INNOSPEC INC. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Patrick Williams President & Ceo $18,138,451 27 Feb 2026
Brian Robert Watt VP, Strat Plan & Regulatory $2,551,166 10 May 2021
Philip John Boon Executive VP Business Ops $2,074,185 21 Feb 2025
Robert I. Paller Director $1,788,941 26 Feb 2024
Ian Philip Cleminson Evp & Cfo $1,563,214 -$182,197 -10% 27 Feb 2026
Catherine Hessner Senior VP - Human Resources $1,542,844 10 May 2021
David Bentley Jones Svp, Gc & Cco $1,111,378 -$77,758 -6.5% 27 Feb 2026
Corbin Barnes SVP, Corporate Dev and IR $1,024,656 27 Feb 2026
Milton C. Blackmore Director $808,598 -$129,769 -14% 27 Feb 2026
Hardy L. Griffin Svp, Human Resources $796,012 27 Feb 2026
Larry Padfield Director $725,895 -$129,769 -15% 27 Feb 2026
David Landless Director $586,061 -$45,473 -7.2% 27 Feb 2026
Leslie J. Parrette Director $579,827 -$15,230 -2.6% 23 Feb 2026
Elizabeth K. Arnold Director $501,217 23 Feb 2026
Claudia Poccia Director $499,749 -$9,110 -1.8% 27 Feb 2026
Ian Malcolm McRobbie Senior VP R&T 23 Feb 2026
Graeme Blair Head of Group Finance 23 Feb 2026

Recent Insider Transactions by Companies or Individuals for INNOSPEC INC.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
David Bentley Jones IOSP Common Stock Sale -6.54% $77,758 $75.64 -1,028 14,693 03 Mar 2026 Direct
Milton C. Blackmore IOSP Common Stock Sale -5.34% $45,473 $76.55 -594 10,530 27 Feb 2026 Direct
Larry Padfield IOSP Common Stock Sale -5.91% $45,473 $76.55 -594 9,453 27 Feb 2026 Direct
Claudia Poccia IOSP Common Stock Sale -1.8% $9,110 $76.56 -119 6,508 27 Feb 2026 Direct
David Landless IOSP Common Stock Sale -7.22% $45,473 $76.55 -594 7,632 27 Feb 2026 Direct
Ian Philip Cleminson IOSP Common Stock Sale -10.5% $182,197 $76.55 -2,380 20,357 27 Feb 2026 Direct
Hardy L. Griffin IOSP Common Stock Tax liability -3.8% -401 10,161 27 Feb 2026 Direct
David Bentley Jones IOSP Common Stock Tax liability -5.27% -875 15,721 27 Feb 2026 Direct
Corbin Barnes IOSP Common Stock Tax liability -1.25% -166 13,080 27 Feb 2026 Direct
Patrick Williams IOSP Common Stock Tax liability -3.33% -7,966 231,535 27 Feb 2026 Direct
Corbin Barnes IOSP Common Stock Award 23% 2,481 13,246 23 Feb 2026 Direct
Hardy L. Griffin IOSP Common Stock Award 31.4% 2,521 10,562 23 Feb 2026 Direct
Ian Philip Cleminson IOSP Common Stock Award 24.7% 4,499 22,737 23 Feb 2026 Direct
Patrick Williams IOSP Common Stock Award 9.53% 20,846 239,501 23 Feb 2026 Direct
David Bentley Jones IOSP Common Stock Award 22% 2,993 16,596 23 Feb 2026 Direct
Graeme Blair IOSP Phantom Stock Award 520 520 23 Feb 2026 Direct
Ian Malcolm McRobbie IOSP Phantom Stock Award 2,228 2,228 23 Feb 2026 Direct
Elizabeth K. Arnold IOSP Common Stock Award 31.8% 1,539 6,376 23 Feb 2026 Direct
Leslie J. Parrette IOSP Common Stock Award 26.4% 1,539 7,376 23 Feb 2026 Direct
David Landless IOSP Common Stock Award 23% 1,539 8,226 23 Feb 2026 Direct
Claudia Poccia IOSP Common Stock Award 30.2% 1,539 6,627 23 Feb 2026 Direct
Milton C. Blackmore IOSP Common Stock Award 16.1% 1,539 11,124 23 Feb 2026 Direct
Larry Padfield IOSP Common Stock Award 18.1% 1,539 10,047 23 Feb 2026 Direct
Milton C. Blackmore IOSP Common Stock Sale -9.7% $84,296 $81.84 -1,030 9,585 20 Feb 2026 Direct
Milton C. Blackmore IOSP Common Stock Options Exercise 10.8% 1,030 10,615 20 Feb 2026 Direct
Milton C. Blackmore IOSP Stock Option Options Exercise -100% -1,030 0 20 Feb 2026 Direct
Larry Padfield IOSP Common Stock Sale -10.8% $84,296 $81.84 -1,030 8,508 20 Feb 2026 Direct
Larry Padfield IOSP Common Stock Options Exercise 12.1% 1,030 9,538 20 Feb 2026 Direct
Larry Padfield IOSP Stock Option Options Exercise -100% -1,030 0 20 Feb 2026 Direct
Corbin Barnes IOSP Common Stock Award 19.2% 1,730 10,765 16 Feb 2026 Direct
Hardy L. Griffin IOSP Common Stock Award 19.3% 1,299 8,041 16 Feb 2026 Direct
Ian Philip Cleminson IOSP Common Stock Award 15% 2,380 18,238 16 Feb 2026 Direct
Patrick Williams IOSP Common Stock Award 9.5% 18,966 218,655 16 Feb 2026 Direct
David Bentley Jones IOSP Common Stock Award 16.3% 1,903 13,603 16 Feb 2026 Direct
Corbin Barnes IOSP Common Stock Small acquisition under Rule 16a-6 0.22% 19.87 9,035 26 Nov 2025 Direct
Leslie J. Parrette IOSP Common Stock Purchase 6.19% $25,191 $74.09 340 5,837 14 Nov 2025 Direct
Corbin Barnes IOSP Common Stock Small acquisition under Rule 16a-6 0.19% 16.75 9,015 30 May 2025 Direct
Leslie J. Parrette IOSP Common Stock Sale -7.5% $40,421 $90.63 -446 5,497 13 May 2025 Direct
Hardy L. Griffin IOSP Common Stock Tax liability -8.17% -600 6,742 13 May 2025 Direct
Corbin Barnes IOSP Common Stock Tax liability -7.6% -740 8,998 13 May 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.