Michael C. Arnold

Companies

• Kaiser AluminumBoard member Sep 8, 2021 to now¹
• AGCOBoard member Oct 29, 2013 to now²
• Ryerson, Inc.Chief executive officer Nov 18, 2014 to Nov 18, 2014³
• Ryerson, Inc.President Nov 18, 2014 to Nov 18, 2014³
• Ryerson, Inc.Officer Aug 7, 2014 to Aug 15, 2014⁴
• Timken CompanyEvp & Pres. Brgs & Pwr Trans Apr 22, 2008 to Nov 30, 2010⁵
• Timken CompanyPresident Apr 19, 2004 to Feb 8, 2008⁶

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Timken Company TKR79,369 shares⁷$9.0M at $113.01Nov 29, 2010
• AGCO AGCO24,295 shares⁸$2.5M at $103.51Apr 23, 2026
• Kaiser Aluminum KALU11,445 shares⁹$1.7M at $148.42Jun 4, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jun 4, 2026Granted 786 shares of Kaiser Aluminum⁹
• Apr 23, 2026Granted 1,673 shares of AGCO⁸
• Jun 10, 2025Granted 918 shares at $73.49 of Kaiser Aluminum¹⁰
• Jun 10, 2025Granted 1,905 shares of Kaiser Aluminum¹⁰
• Apr 24, 2025Granted 2,157 shares of AGCO¹¹
• Aug 7, 2024Bought 1,800 shares at $87.69 of AGCO¹²
• Jun 11, 2024Granted 557 shares at $96.89 of Kaiser Aluminum¹³
• Jun 11, 2024Granted 1,393 shares at $96.89 of Kaiser Aluminum¹⁴
• Jun 11, 2024Granted 1,444 shares of Kaiser Aluminum¹³
• Jun 11, 2024Granted 1,444 shares of Kaiser Aluminum¹⁴
• Apr 25, 2024Granted 1,572 shares of AGCO¹⁵
• Jun 7, 2023Granted 856 shares at $63.08 of Kaiser Aluminum¹⁶
• Jun 7, 2023Granted 2,060 shares of Kaiser Aluminum¹⁶
• Apr 27, 2023Shares withheld for tax 269 shares at $122.99 of AGCO¹⁷
• Apr 27, 2023Granted 1,341 shares of AGCO¹⁷
• Jun 2, 2022Granted 1,325 shares of Kaiser Aluminum¹⁸
• Apr 28, 2022Shares withheld for tax 260 shares at $127.31 of AGCO¹⁹
• Apr 28, 2022Granted 1,296 shares of AGCO¹⁹
• Nov 29, 2010Sold 40,000 shares at $43.82 of Timken Company⁷
• Aug 3, 2010Sold 19,577 shares at $34.35 of Timken Company²⁰
• Aug 3, 2010Exercised options 20,850 shares at $30.70 of Timken Company²⁰
• Aug 3, 2010Shares withheld for tax 1,641 shares at $34.46 of Timken Company²⁰
• Aug 3, 2010Sold 24,609 shares at $34.32 of Timken Company²⁰
• Aug 3, 2010Exercised options 26,250 shares at $29.23 of Timken Company²⁰
• Aug 3, 2010Shares withheld for tax 1,265 shares at $34.46 of Timken Company²⁰