$IOSP 4 SEC Filings

Filed On	Filing
05 Oct 2026	Form 4: Barnes Corbin, SVP, Corporate Dev and IR Granted 2,642 Phantom Stock
05 Oct 2026	Form 4: Griffin Hardy Louis Iii, SVP, HUMAN RESOURCES Granted 2,685 Phantom Stock
05 Oct 2026	Form 4: Cleminson Ian, EVP & CFO Granted 4,792 Phantom Stock
05 Oct 2026	Form 4: Mcrobbie Ian Malcolm, Senior VP R&T Granted 3,164 Phantom Stock
05 Oct 2026	Form 4: Jones David B., SVP, GC & CCO Granted 3,188 Phantom Stock
05 Oct 2026	Form 4: Williams Patrick, PRESIDENT & CEO Granted 22,203 Phantom Stock
03 Mar 2026	Form 4: Blackmore Milton C, Director Sold 594 shares ($45.5K)
03 Mar 2026	Form 4: Padfield Larry, Director Sold 594 shares ($45.5K)
03 Mar 2026	Form 4: Poccia Claudia, Director Sold 119 shares ($9.11K)
03 Mar 2026	Form 4: Griffin Hardy Louis Iii, SVP, HUMAN RESOURCES Gave up 401 shares to cover exercise price or tax ($31.4K)
03 Mar 2026	Form 4: Landless David, Director Sold 594 shares ($45.5K)
03 Mar 2026	Form 4: Jones David B., SVP, GC & CCO Gave up 875 shares to cover exercise price or tax ($68.5K) · Sold 1,028 shares ($77.8K)
03 Mar 2026	Form 4: Barnes Corbin, SVP, Corporate Dev and IR Gave up 166 shares to cover exercise price or tax ($13K)
03 Mar 2026	Form 4: Cleminson Ian, EVP & CFO Sold 2,380 shares ($182K)
03 Mar 2026	Form 4: Williams Patrick, PRESIDENT & CEO Gave up 7,966 shares to cover exercise price or tax ($624K)
25 Feb 2026	Form 4: Barnes Corbin, SVP, Corporate Dev and IR Received 2,481 shares as a grant or award
25 Feb 2026	Form 4: Griffin Hardy Louis Iii, SVP, HUMAN RESOURCES Received 2,521 shares as a grant or award
25 Feb 2026	Form 4: Cleminson Ian, EVP & CFO Received 4,499 shares as a grant or award
25 Feb 2026	Form 4: Williams Patrick, PRESIDENT & CEO Received 20,846 shares as a grant or award
25 Feb 2026	Form 4: Jones David B., SVP, GC & CCO Received 2,993 shares as a grant or award

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