Every Form 4 that Innospec Inc. (IOSP) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow IOSP and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full IOSP filings page.
INNOSPEC INC. director Milton C. Blackmore reported amended details of recent stock sales. On February 27, 2026, he completed two open-market sales of the company’s common stock totaling 594 shares. One block of 287 shares was sold at a weighted average price of $76.30 per share, and another 307 shares at a weighted average price of $76.79 per share. After these transactions, his directly held stake changed in two steps to 10,837 shares and then 10,530 shares of common stock. This amended Form 4 corrects previously reported transaction prices and notes that the sale prices reflect weighted averages across multiple trades within stated ranges.
Innospec Inc. director Larry Padfield reported amended insider sales of company common stock. The Form 4/A corrects transaction prices previously reported. On February 27, 2026, he sold 287 shares at $76.30 and 307 shares at $76.79 in open-market transactions, totaling 594 shares.
The footnotes explain that each reported price is a weighted average. The 287-share sale occurred in multiple trades between $75.5001 and $76.55, and the 307-share sale in trades between $76.555 and $77.0713. After these transactions, his directly held ownership was reported as 9,453 shares of Innospec common stock.
Innospec Inc. director Claudia Poccia reported amended insider stock sales. The Form 4/A corrects transaction prices previously reported for two open-market sales of Innospec common stock on February 27, 2026.
The amended filing shows sales totaling 119 shares, with 57 shares sold at a weighted average price of $76.30 and 62 shares sold at a weighted average price of $76.79. After these transactions, Poccia directly owned 6,508 shares of Innospec common stock.
The footnotes explain that each reported price is a weighted average and that the shares were sold in multiple transactions, with individual prices ranging from $75.5001 to $76.55 for the first sale and from $76.555 to $77.0713 for the second sale. Poccia has undertaken to provide full trade details, including exact share amounts and prices for each execution, to the SEC staff, Innospec, or any Innospec security holder upon request.
Innospec Inc. director David Landless reported selling 594 shares of common stock in two open-market transactions. On February 27, 2026, he sold 287 shares at a weighted average price of $76.30 and 307 shares at a weighted average price of $76.79.
This amended Form 4 corrects the previously reported transaction prices and states that the prices reflect weighted averages. The first sale occurred in multiple trades between $75.5001 and $76.55, and the second between $76.555 and $77.0713. Following these sales, he directly holds 7,632 shares.
Innospec Inc. executive Ian Cleminson, EVP & CFO, reported amended insider stock sales. On February 27, 2026, he sold a total of 2,380 shares of Innospec common stock in two open-market transactions at weighted average prices of $76.30 and $76.79 per share. After these sales, he directly owned 20,357 shares of common stock. The amendment corrects previously reported transaction prices and notes the shares were sold in multiple trades within price ranges from $75.5001 to $76.55 and from $76.555 to $77.0713.
Innospec Inc. director Milton C. Blackmore reported an open-market sale of 594 shares of Innospec common stock. The transaction took place on February 27, 2026 at a price of $76.5562 per share. After this sale, he directly owns 10,530 shares of Innospec.
Innospec Inc. director Larry Padfield reported an open-market sale of common stock. He sold 594 shares at an average price of $76.5562 per share. After this transaction, he directly owns 9,453 shares of Innospec common stock.
Innospec Inc. director Claudia Poccia reported an open-market sale of 119 shares of common stock at an average price of $76.5562 per share. According to the filing, these shares were sold through a broker transaction solely to cover tax withholding obligations related to the vesting of time-based restricted stock units. After this tax-related sale, Poccia beneficially owns 6,508 Innospec common shares directly.
Innospec Inc. senior vice president of human resources Hardy Louis Griffin III reported a small insider transaction related to equity compensation. On vesting of a restricted stock unit award, 401 shares of common stock were automatically withheld at $78.34 per share to cover income tax obligations, rather than being an open‑market trade. After this tax-withholding disposition, Griffin directly owned 10,161 common shares, reflecting his remaining equity stake in the company.
Innospec Inc. director David Landless reported an open-market sale of 594 shares of Innospec common stock at an average price of $76.5562 per share on February 27, 2026. After this transaction, he directly holds 7,632 shares of the company’s common stock.
Innospec Inc. senior vice president, general counsel and chief compliance officer David B. Jones reported two stock transactions. He sold 1,028 shares of common stock in an open-market sale at $75.64 per share and had 875 shares withheld to cover taxes upon vesting of restricted stock units. After these transactions, he directly owned 14,693 shares of Innospec common stock.
Innospec Inc. SVP Corbin Barnes reported a tax-related share disposition. On February 27, 2026, 166 shares of common stock were withheld at $78.34 per share to cover income taxes due upon vesting of a restricted stock unit award. After this tax-withholding transaction, Barnes directly held 13,079.6117 Innospec common shares.
Innospec Inc. executive vice president and CFO Ian Cleminson reported an open-market sale of 2,380 shares of common stock at a price of $76.56 per share. After this transaction, he directly holds 20,357 shares of Innospec common stock.
Innospec Inc. President & CEO Patrick Williams reported a tax-related share disposition. On February 27, 2026, 7,966 shares of common stock were withheld at $78.34 per share to settle income tax owed on a restricted stock unit vesting, leaving him with 231,535 shares held directly.
BARNES CORBIN reported acquisition or exercise transactions in this Form 4 filing.
Innospec Inc.'s Senior Vice President of Corporate Development and Investor Relations, Corbin Barnes, received an equity award in the form of restricted stock units. The grant covers 2,481 RSUs of common stock at no cash cost and vests in full on February 23, 2029.
Following this award, Barnes now directly holds a total of 13,245.6117 shares of Innospec common stock, aligning his compensation more closely with the company’s long-term share performance.
INNOSPEC INC. senior vice president of human resources Hardy Louis Griffin III reported an equity award under the company’s compensation program. On February 23, 2026, he acquired 2,521 shares of common stock in the form of restricted stock units granted at no cash cost, which will vest in full on February 23, 2029. Following this grant, his directly owned common stock holdings total 10,562 shares.
Cleminson Ian reported acquisition or exercise transactions in this Form 4 filing.
Innospec Inc. reported that Executive Vice President and Chief Financial Officer Ian Cleminson received a grant of 4,499 shares of common stock in the form of restricted stock units. These RSUs were granted on February 23, 2026 and will vest in full on February 23, 2029. After this award, Cleminson directly holds 22,737 shares of Innospec common stock.
Williams Patrick reported acquisition or exercise transactions in this Form 4 filing.
INNOSPEC INC. President & CEO Patrick Williams received an equity award of 20,846 Restricted Stock Units (RSUs) on February 23, 2026, recorded at a price of $0.00 per unit as a grant or award. These RSUs vest in full on February 23, 2029. Following this grant, his directly held common stock position is reported at 239,501 shares.
Jones David B. reported acquisition or exercise transactions in this Form 4 filing.
Innospec Inc. executive David B. Jones, who serves as SVP, General Counsel and Chief Compliance Officer, reported receiving an equity award tied to the company’s common stock. The filing shows a grant of 2,993 restricted stock units on February 23, 2026, which will vest in full on February 23, 2029.
After this grant, Jones is shown as beneficially owning 16,596 shares of Innospec common stock in total. This transaction reflects stock-based compensation rather than an open-market purchase or sale.
Blair Graeme reported acquisition or exercise transactions in this Form 4 filing.
Innospec Inc. reported that Head of Group Finance Graeme Blair received a grant of 520 units of phantom stock on February 23, 2026. Each phantom stock unit is economically equivalent to one share of Innospec common stock and is scheduled to settle in cash on the award’s expiration date based on the closing share price at that time.
MCROBBIE IAN MALCOLM reported acquisition or exercise transactions in this Form 4 filing.
Innospec Inc. executive Ian Malcolm McRobbie, Senior VP R&T, reported an award of 2,228 shares of phantom stock on February 23, 2026. This is a compensation grant recorded at a price of $0.00 per unit, bringing his reported phantom stock holdings to 2,228 units.
Each phantom stock share is economically equivalent to one share of Innospec common stock but will settle in cash rather than stock. The cash payout is scheduled for the award’s expiration date and will be based on the closing price of Innospec common stock on that date.
INNOSPEC INC. director Elizabeth K. Arnold reported an equity award from the company. She acquired 1,539 Restricted Stock Units (RSUs) at no purchase price as a grant in connection with her service as a non-employee director. These RSUs vest in full on February 23, 2029, meaning they convert into common shares for her at that time if conditions are met. Following this grant, her directly held common stock and RSU-related holdings total 6,376 shares, reflecting routine stock-based compensation rather than an open-market purchase or sale.
PARRETTE LESLIE J reported acquisition or exercise transactions in this Form 4 filing.
INNOSPEC INC. director Leslie J. Parrette reported an equity award of 1,539 shares of common stock in the form of Restricted Stock Units. The RSUs were granted in connection with Parrette’s service as a non-employee director and will vest in full on February 23, 2029. After this grant, Parrette directly holds 7,376 shares of common stock.
Innospec Inc. director David Landless received an equity award rather than buying shares on the market. He acquired 1,539 shares of common stock through a grant of restricted stock units that vest in full on February 23, 2029, for his service as a non-employee director. After this award, he holds 8,226 shares directly.
INNOSPEC INC. director Claudia Poccia reported an equity award on Form 4. She acquired 1,539 Restricted Stock Units (RSUs) tied to common stock, granted for her service as a non-employee director. These RSUs vest in full on February 23, 2029.
After this grant, Poccia directly holds a total of 6,627 shares or share-equivalent units of the company’s common stock. The transaction reflects a compensation-related stock award rather than an open-market purchase or sale.
Innospec director Milton C. Blackmore reported a mix of equity awards, option exercises, and share sales. He received 1,539 restricted stock units that vest in full on February 23, 2029 as compensation for his service as a non-employee director. On February 20, 2026, he exercised stock options for 1,030 shares of common stock at $44.18 per share and sold 1,030 shares of common stock in an open-market transaction at an average price of $81.8409 per share. After these transactions, his directly held common stock, including RSUs, was reported at 11,124 shares.
Innospec Inc. director Larry Padfield reported multiple equity transactions. He received a grant of 1,539 Restricted Stock Units that vest in full on February 23, 2029 for his service as a non-employee director. He also exercised stock options for 1,030 shares at $44.18 per share and sold 1,030 common shares in an open-market transaction at an average price of $81.8409 per share. After these transactions, he directly owned 10,047 common shares.
INNOSPEC INC. senior vice president Corbin Barnes reported an equity award in company stock. On February 16, 2026, he acquired 1,730 shares of common stock at a stated price of $0.00 per share through the settlement of a performance-based restricted stock unit award granted on February 27, 2023.
After this grant, Barnes directly holds a total of 10,764.6117 shares of Innospec common stock. The transaction reflects equity compensation rather than an open-market purchase or sale.
Innospec Inc. senior vice president of human resources Hardy Louis Griffin III acquired 1,299 shares of common stock through a grant/award on settlement of a performance-based restricted stock unit granted on February 27, 2023. Following this award, his direct ownership stands at 8,041 common shares.
Innospec Inc. EVP & CFO Ian Cleminson acquired 2,380 shares of common stock on 2026-02-16 through the settlement of a performance-based restricted stock unit award. The RSU award was originally granted on 2023-02-27. After this grant, his directly held common stock position increased to 18,238 shares.
Innospec Inc. President and CEO Patrick Williams reported an acquisition of company shares through an equity award. On February 16, he received 18,966 shares of common stock at no cash price upon settlement of a performance-based restricted stock unit grant originally awarded on February 27, 2023. Following this grant, his direct holdings increased to 218,655 common shares.
INNOSPEC INC. senior vice president, general counsel and chief compliance officer David B. Jones acquired 1,903 shares of common stock on February 16, 2026 through the settlement of a performance-based restricted stock unit award originally granted on February 27, 2023. The award carried no cash purchase price per share. Following this equity grant, Jones directly holds a total of 13,603 shares of Innospec common stock.
Innospec Inc. director reports open-market stock purchase
A director of Innospec Inc. (IOSP) reported buying 340 shares of the company’s common stock on 11/14/2025 at a price of $74.09 per share. After this transaction, the director beneficially owns 5,837 shares, held as a direct ownership position. The transaction was reported on a Form 4 as a purchase coded "P" in the non-derivative securities table, and no derivative security transactions were reported.