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$ Value

$624K

Shares

7,966

Price

$78

Filed

Mar 3

Insider

Name

Williams Patrick

Title

PRESIDENT & CEO

CIK

0001338883

Roles

Officer

Transaction Details

Transaction Date

2026-02-27

Code

F

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

231,535

Footnotes

Shares withheld to settle income tax liability incurred upon vesting of restricted stock unit award on February 27, 2026.

Filing Info

Accession No.

0001193125-26-089087

Form Type

4

Issuer CIK

0001054905

Williams Patrick's History

Date Ticker Type Value
2026-03-31 ASIX A $13K
2026-02-27 IOSP F $624K
2026-02-23 IOSP A $0
2026-02-16 IOSP A $0
2025-12-15 ASIX A $13K
2025-09-30 ASIX A $13K
2025-06-30 ASIX A $13K
2025-06-18 ASIX A $0

Other Insiders at IOSP (90d)

Insider Bought Sold Last
PARRETTE LESLIE J 2026-02-23
MCROBBIE IAN MALCOLM
Senior VP R&T
2026-02-23
Williams Patrick
PRESIDENT & CEO
2026-02-23
Cleminson Ian
EVP & CFO
$364K 2026-02-27
Blackmore Milton C $175K 2026-02-27
PADFIELD Larry $175K 2026-02-27
LANDLESS DAVID $91K 2026-02-27
Jones David B.
SVP, GC & CCO
$78K 2026-03-03
Poccia Claudia $18K 2026-02-27
Arnold Elizabeth K 2026-02-23
Blair Graeme
Head of Group Finance
2026-02-23
BARNES CORBIN
SVP, Corporate Dev and IR
2026-02-27
GRIFFIN HARDY LOUIS III
SVP, HUMAN RESOURCES
2026-02-27