Blackmore Milton C 4
4 · INNOSPEC INC. · Filed Feb 24, 2026
Insider Transaction Report
Form 4
INNOSPEC INC.IOSP
Blackmore Milton C
Director
Transactions
- Exercise/Conversion
Common Stock
2026-02-20$44.18/sh+1,030$45,505→ 10,615 total - Sale
Common Stock
2026-02-20$81.84/sh−1,030$84,296→ 9,585 total - Award
Common Stock
[F1]2026-02-23+1,539→ 11,124 total - Exercise/Conversion
Stock Option
2026-02-20−1,030→ 0 totalExercise: $44.18From: 2019-02-22Exp: 2026-02-22→ Common Stock (1,030 underlying)
Footnotes (1)
- [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.
Signature
Milton C. Blackmore|2026-02-24