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INNOSPEC INC.

For the period ended Sep 30, 2025. Filed Nov 5, 2025.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2025 · Filed Nov 5, 2025

IOSP$77.72-3.1%Stored close · as of Nov 10, 2026

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Unregistered Sales of Equity Securities and Use of Proceeds

Item 2 Unregistered Sales of Equity Securities and Use of Proceeds

There have been no unregistered sales of equity securities.

On March 10, 2025, the Company announced a repurchase program which allows for up to $50 million of the Company’s common stock to be repurchased in the open market over a three-year period commencing on March 10, 2025. The previous repurchase program ended in February 2025. The company also repurchases its common stock in connection with the exercising of stock options by directors and employees. The following table provides information about our repurchases of equity securities in the three months ended September 30, 2025.

Period · Total numberof sharespurchased · Average pricepaid per share · Total number ofshares purchasedas part of publiclyannounced plans orprograms · Approximate dollarvalue of shares thatmay yet be purchasedunder the plans orprograms
July 1, 2025 through July 31, 202565,250$87.465,250$32.8million
August 1, 2025 through August 31, 202527,400$86.827,400$30.4million
September 1, 2025 through September 30, 202530,000$86.130,000$27.8million
Total122,650$87.0122,650$27.8million
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.