IOSP insider transactions

Amendment: Director Blackmore Milton C sold $45,473 worth of shares (594 units at $76.55), decreasing direct ownership by 5% to 10,530 units (SEC Form 4)

Amendment: Director Padfield Larry sold $45,473 worth of shares (594 units at $76.55), decreasing direct ownership by 6% to 9,453 units (SEC Form 4)

Amendment: Director Poccia Claudia sold $9,110 worth of shares (119 units at $76.56), decreasing direct ownership by 2% to 6,508 units (SEC Form 4)

Amendment: Director Landless David sold $45,473 worth of shares (594 units at $76.55), decreasing direct ownership by 7% to 7,632 units (SEC Form 4)

Amendment: EVP & CFO Cleminson Ian sold $182,197 worth of shares (2,380 units at $76.55), decreasing direct ownership by 10% to 20,357 units (SEC Form 4)

Director Blackmore Milton C sold $45,474 worth of shares (594 units at $76.56), decreasing direct ownership by 5% to 10,530 units (SEC Form 4)

Director Padfield Larry sold $45,474 worth of shares (594 units at $76.56), decreasing direct ownership by 6% to 9,453 units (SEC Form 4)

Director Poccia Claudia sold $9,110 worth of shares (119 units at $76.56), decreasing direct ownership by 2% to 6,508 units (SEC Form 4)

SVP, HUMAN RESOURCES Griffin Hardy Louis Iii covered exercise/tax liability with 401 shares, decreasing direct ownership by 4% to 10,161 units (SEC Form 4)

Director Landless David sold $45,474 worth of shares (594 units at $76.56), decreasing direct ownership by 7% to 7,632 units (SEC Form 4)

SVP, GC & CCO Jones David B. sold $77,758 worth of shares (1,028 units at $75.64) and covered exercise/tax liability with 875 shares, decreasing direct ownership by 11% to 14,693 units (SEC Form 4)

SVP, Corporate Dev and IR Barnes Corbin covered exercise/tax liability with 166 shares, decreasing direct ownership by 1% to 13,080 units (SEC Form 4)

EVP & CFO Cleminson Ian sold $182,213 worth of shares (2,380 units at $76.56), decreasing direct ownership by 10% to 20,357 units (SEC Form 4)

PRESIDENT & CEO Williams Patrick covered exercise/tax liability with 7,966 shares, decreasing direct ownership by 3% to 231,535 units (SEC Form 4)

SVP, Corporate Dev and IR Barnes Corbin was granted 2,481 shares, increasing direct ownership by 23% to 13,246 units (SEC Form 4)

SVP, HUMAN RESOURCES Griffin Hardy Louis Iii was granted 2,521 shares, increasing direct ownership by 31% to 10,562 units (SEC Form 4)

EVP & CFO Cleminson Ian was granted 4,499 shares, increasing direct ownership by 25% to 22,737 units (SEC Form 4)

PRESIDENT & CEO Williams Patrick was granted 20,846 shares, increasing direct ownership by 10% to 239,501 units (SEC Form 4)

SVP, GC & CCO Jones David B. was granted 2,993 shares, increasing direct ownership by 22% to 16,596 units (SEC Form 4)

SEC Form 4 filed by Head of Group Finance Blair Graeme

SEC Form 4 filed by Senior VP R&T Mcrobbie Ian Malcolm

Director Arnold Elizabeth K was granted 1,539 shares, increasing direct ownership by 32% to 6,376 units (SEC Form 4)

Director Parrette Leslie J was granted 1,539 shares, increasing direct ownership by 26% to 7,376 units (SEC Form 4)

Director Landless David was granted 1,539 shares, increasing direct ownership by 23% to 8,226 units (SEC Form 4)

Director Poccia Claudia was granted 1,539 shares, increasing direct ownership by 30% to 6,627 units (SEC Form 4)

Director Blackmore Milton C exercised 1,030 shares at a strike of $44.18, sold $84,296 worth of shares (1,030 units at $81.84) and was granted 1,539 shares, increasing direct ownership by 16% to 11,124 units (SEC Form 4)

Director Padfield Larry exercised 1,030 shares at a strike of $44.18, sold $84,296 worth of shares (1,030 units at $81.84) and was granted 1,539 shares, increasing direct ownership by 18% to 10,047 units (SEC Form 4)

SVP, Corporate Dev and IR Barnes Corbin was granted 1,730 shares, increasing direct ownership by 19% to 10,765 units (SEC Form 4)

SVP, HUMAN RESOURCES Griffin Hardy Louis Iii was granted 1,299 shares, increasing direct ownership by 19% to 8,041 units (SEC Form 4)

EVP & CFO Cleminson Ian was granted 2,380 shares, increasing direct ownership by 15% to 18,238 units (SEC Form 4)

PRESIDENT & CEO Williams Patrick was granted 18,966 shares, increasing direct ownership by 9% to 218,655 units (SEC Form 4)

SVP, GC & CCO Jones David B. was granted 1,903 shares, increasing direct ownership by 16% to 13,603 units (SEC Form 4)

Barnes Corbin increased direct ownership by 0.41% to 9,035 units (SEC Form 5)

Director Parrette Leslie J bought $25,191 worth of shares (340 units at $74.09), increasing direct ownership by 6% to 5,837 units (SEC Form 4)

Director Parrette Leslie J sold $40,421 worth of shares (446 units at $90.63), decreasing direct ownership by 8% to 5,497 units (SEC Form 4)

SVP, HUMAN RESOURCES Griffin Hardy Louis Iii covered exercise/tax liability with 600 shares, decreasing direct ownership by 8% to 6,742 units (SEC Form 4)

SVP, Corporate Dev and IR Barnes Corbin covered exercise/tax liability with 740 shares, decreasing direct ownership by 8% to 8,998 units (SEC Form 4)

PRESIDENT & CEO Williams Patrick covered exercise/tax liability with 12,723 shares, decreasing direct ownership by 6% to 199,689 units (SEC Form 4)

EVP & CFO Cleminson Ian sold $431,679 worth of shares (4,275 units at $100.98), decreasing direct ownership by 21% to 15,858 units (SEC Form 4)

SEC Form 4 filed by Senior VP R&T Mcrobbie Ian Malcolm

SEC Form 4 filed by Head of Group Finance Blair Graeme

SVP, Corporate Dev and IR Barnes Corbin exercised 200 shares at a strike of $99.68, returned $20,398 worth of shares to the company (200 units at $101.99) and was granted 1,687 shares, increasing direct ownership by 21% to 9,738 units (SEC Form 4)

SVP, HUMAN RESOURCES Griffin Hardy Louis Iii exercised 121 shares at a strike of $99.68, returned $12,341 worth of shares to the company (121 units at $101.99) and was granted 1,682 shares, increasing direct ownership by 30% to 7,342 units (SEC Form 4)

Director Poccia Claudia was granted 1,209 shares, increasing direct ownership by 31% to 5,088 units (SEC Form 4)

Director Parrette Leslie J was granted 1,209 shares, increasing direct ownership by 26% to 5,943 units (SEC Form 4)

Director Padfield Larry was granted 1,209 shares, increasing direct ownership by 17% to 8,508 units (SEC Form 4)

Director Landless David was granted 1,209 shares, increasing direct ownership by 22% to 6,687 units (SEC Form 4)

Director Blackmore Milton C was granted 1,209 shares, increasing direct ownership by 14% to 9,585 units (SEC Form 4)

Director Arnold Elizabeth K was granted 1,209 shares, increasing direct ownership by 33% to 4,837 units (SEC Form 4)

PRESIDENT & CEO Williams Patrick was granted 14,743 shares, increasing direct ownership by 7% to 212,412 units (SEC Form 4)

VP & CFO Cleminson Ian was granted 2,862 shares, increasing direct ownership by 17% to 20,133 units (SEC Form 4)

SVP, GC & CCO Jones David B. was granted 2,036 shares, increasing direct ownership by 21% to 11,700 units (SEC Form 4)

SVP, Corporate Dev and IR Barnes Corbin exercised 598 shares at a strike of $99.68 and sold $61,630 worth of shares (598 units at $103.06) (SEC Form 4)

VP & CFO Cleminson Ian was granted 4,275 shares, increasing direct ownership by 33% to 17,271 units (SEC Form 4)

PRESIDENT & CEO Williams Patrick was granted 30,292 shares, increasing direct ownership by 18% to 197,669 units (SEC Form 4)

Director Padfield Larry sold $20,247 worth of shares (196 units at $103.30), decreasing direct ownership by 3% to 7,299 units (SEC Form 4)

SVP, HUMAN RESOURCES Griffin Hardy Louis Iii was granted 1,625 shares and covered exercise/tax liability with 488 shares, increasing direct ownership by 25% to 5,660 units (SEC Form 4)

Director Landless David covered exercise/tax liability with 306 shares, decreasing direct ownership by 5% to 5,478 units (SEC Form 4)

Executive VP Business Ops Boon Philip John was granted 3,754 shares and sold $387,793 worth of shares (3,754 units at $103.30) (SEC Form 4)

SVP, Corporate Dev and IR Barnes Corbin was granted 2,692 shares and sold $278,087 worth of shares (2,692 units at $103.30) (SEC Form 4)