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$ Value

$0

Shares

1,539

Price

$0

Filed

Feb 25

Insider

Name

Arnold Elizabeth K

Title

CIK

0001785365

Roles

Director

Transaction Details

Transaction Date

2026-02-23

Code

A

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

6,376

Footnotes

Represents Restricted Stock Units ("RSUs") vesting in full on February 23, 2029, granted by Issuer in connection with Reporting Person's service as a non-employee director.

Filing Info

Accession No.

0001193125-26-072169

Form Type

4

Issuer CIK

0001054905

Arnold Elizabeth K's History

Date Ticker Type Value
2026-04-10 RAIL A $80K
2026-02-23 IOSP A $0
2025-05-14 RAIL A $75K

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
2026-02-27
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
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