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IOSP - Innospec Inc.

Insider Sale by Blackmore Milton C (Dir)

1 Month
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Trade Summary

6 days ago, Blackmore Milton C, serving as Dir at Innospec Inc. (IOSP), sold 594 shares at $76.56 per share, for a total transaction value of $45,474.00. Following this transaction, Blackmore Milton C now holds 10,530 shares of IOSP.

This sale represents a 5.00% decrease in Blackmore Milton C's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Friday, February 27, 2026 and publicly disclosed via SEC Form 4 filing on Tuesday, March 3, 2026, 4 days after the trade was made.

Innospec Inc. operates in the BASIC MATERIALS sector, specifically within the SPECIALTY CHEMICALS industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.

Blackmore Milton C

Blackmore Milton C

Dir

Milton C. Blackmore is a seasoned executive in the oil and chemicals industry, serving as Non-Executive Chairman and independent director of Innospec Inc. (IOSP) since June 1, 2010.[[1]](https://fintool.com/app/research/companies/IOSP/people/milton-c-blackmore)[[3]](https://innospec.com/board-of-directors/) Appointed Chairman in May following the retirement of Dr. Bob Bew, he currently sits on the Audit and Compensation Committees, contributing expertise in senior leadership, financial literacy, corporate governance, and operations.[[1]](https://fintool.com/app/research/companies/IOSP/people/milton-c-blackmore)[[5]](https://www.biospace.com/innospec-announces-retirement-of-b-dr-bob-bew-b-and-appointment-of-b-milton-blackmore-b-as-new-chairman) Blackmore, age 77, earned a B.S. in Business Administration from Panhandle State University in 1969.[[1]](https://fintool.com/app/research/companies/IOSP/people/milton-c-blackmore)[[2]](https://www.adhesivesmag.com/articles/89090-innospec-inc-appoints-blackmore-to-board-of-directors) His career spans over four decades, including 26 years at Kerr-McGee Refining Corporation in accounting, marketing, and general management roles, culminating as General Manager of Branded Marketing.[[1]](https://fintool.com/app/research/companies/IOSP/people/milton-c-blackmore)[[2]](https://www.adhesivesmag.com/articles/89090-innospec-inc-appoints-blackmore-to-board-of-directors)[[3]](https://innospec.com/board-of-directors/) From 1995 to 2009, he was Senior Vice President of Marketing and Product Supply at Sinclair Oil Corporation, also serving as a director and Chairman of Sinclair Marketing Inc.[[1]](https://fintool.com/app/research/companies/IOSP/people/milton-c-blackmore)[[2]](https://www.adhesivesmag.com/articles/89090-innospec-inc-appoints-blackmore-to-board-of-directors)[[3]](https://innospec.com/board-of-directors/) As a corporate insider, he has engaged in recent trading activities at Innospec.[[4]](https://www.gurufocus.com/insider/52699/milton-c-blackmore)[[7]](https://www.benzinga.com/sec/insider-trades/0001493440/Milton-Blackmore)

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Trade Price

$76.56

Quantity

594

Total Value

$45,474.00

Shares Owned

10,530

Trade Date

Friday, February 27, 2026

6 days ago

SEC Filing Date

Tuesday, March 3, 2026

Filed 4 days after trade

BASIC MATERIALSSPECIALTY CHEMICALS

About Innospec Inc.

Company Overview

No company information available
View news mentioning IOSP

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