Patrick Williams - 16 Feb 2026 Form 4 Insider Report for INNOSPEC INC. (IOSP)

Signature
Patrick Williams
Issuer symbol
IOSP
Transactions as of
16 Feb 2026
Net transactions value
$0
Form type
4
Filing time
18 Feb 2026, 17:50:06 UTC
Previous filing
17 Dec 2025
Next filing
25 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Williams Patrick PRESIDENT & CEO 8310 SOUTH VALLEY HIGHWAY, SUITE 350, ENGLEWOOD Patrick Williams 18 Feb 2026 0001338883

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IOSP Common Stock Award $0 +18,966 +9.5% $0.000000 218,655 16 Feb 2026 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares of common stock acquired upon settlement of a performance-based restricted stock unit award granted to the reporting person on February 27, 2023.