Larry Padfield - 20 Feb 2026 Form 4 Insider Report for INNOSPEC INC. (IOSP)

Reporting relationship: Director
Issuer ticker: IOSP
Reported as of: 20 Feb 2026
Net transaction value: -$38,791
SEC form: 4
Accepted by SEC: 24 Feb 2026, 18:24:00 UTC
Prior SEC filing: 27 Feb 2025
Next SEC filing: 06 Mar 2026
Source filing: View source filing
Reporting owner signature: Larry Padfield

Key filing fact

Larry Padfield filed Form 4 for INNOSPEC INC. (IOSP) on 24 Feb 2026.

Key facts

This page summarizes Larry Padfield's Form 4 filing for INNOSPEC INC. (IOSP).
4 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 24 Feb 2026, 18:24.

Change

Previous filing in this sequence was filed on 27 Feb 2025.
Current net transaction value: -$38,791.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001567635 Primary reporting owner

PADFIELD Larry

Relationship: Director
Address: 8310 SOUTH VALLEY HIGHWAY, SUITE 350, ENGLEWOOD
Signature: Larry Padfield
Signature date: 24 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

IOSP transaction

Common Stock

Options Exercise

Transaction value: $45,505
Shares: +1,030
Change %: +12%
Price: $44.18
Shares after: 9,538
Date: 20 Feb 2026
Ownership: Direct

IOSP transaction

Common Stock

Sale

Transaction value: $84,296
Shares: -1,030
Change %: -11%
Price: $81.84
Shares after: 8,508
Date: 20 Feb 2026
Ownership: Direct

IOSP transaction

Common Stock

Award

Transaction value: $0
Shares: +1,539
Change %: +18%
Price: $0.000000
Shares after: 10,047
Date: 23 Feb 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

IOSP transaction Derivative

Stock Option

Options Exercise

Transaction value: $0
Shares: -1,030
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 20 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,030
Exercise price: $44.18

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

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.