Corbin Barnes - 31 Dec 2025 Form 5 Insider Report for INNOSPEC INC. (IOSP)

Role
SVP, Corporate Dev and IR
Signature
Corbin Barnes
Issuer symbol
IOSP
Transactions as of
31 Dec 2025
Net transactions value
+$2,913
Form type
5
Filing time
17 Feb 2026, 18:48:26 UTC
Previous filing
15 May 2025
Next filing
18 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
BARNES CORBIN SVP, Corporate Dev and IR 8310 SOUTH VALLEY HIGHWAY, SUITE 350, ENGLEWOOD Corbin Barnes 17 Feb 2026 0001861656

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IOSP Common Stock Small acquisition under Rule 16a-6 $1,424 +17 +0.19% $85.01 9,015 30 May 2025 Direct F1
transaction IOSP Common Stock Small acquisition under Rule 16a-6 $1,489 +20 +0.22% $74.96 9,035 26 Nov 2025 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the inadvertent purchase of 16.7467 shares at $85.01 through a broker-administered dividend reinvestment plan. On February 21, 2025, the Reporting Person had a sale of a matching number of shares at $103.3012 per share. These transactions resulted in a short-swing profit under Section 16(b) of the Securities Exchange Act of 1934 of $306.32, which has been disgorged in full by the Reporting Person to the Issuer.
F2 Represents the inadvertent purchase of 19.865 shares at $74.96 through a broker-administered dividend reinvestment plan.