Colleen F. Arnold

Companies

• Smurfit Westrock GroupBoard member Jul 9, 2024 to now¹
• WestRock CoBoard member Nov 6, 2018 to Jul 8, 2024²
• Cardinal HealthBoard member Aug 9, 2007 to Nov 13, 2019³
• IBMSenior Vice President Jan 21, 2010 to Feb 9, 2016⁴

Holdings

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

Shares held

• IBM IBM34,403 shares⁵$8.5M at $246.02Feb 2, 2016
• Smurfit Westrock Group SW36,623 shares⁶$1.5M at $41.53Sep 10, 2026
• WWestRock Co0 shares⁷Jul 5, 2024

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

Recent filings

• Sep 10, 2026Granted 344 shares of Smurfit Westrock Group⁶
• Jun 10, 2026Granted 368 shares of Smurfit Westrock Group⁸
• May 1, 2026Shares withheld for tax 2,123 shares at $38.39 of Smurfit Westrock Group⁹
• May 1, 2026Granted 4,438 shares of Smurfit Westrock Group⁹
• Mar 18, 2026Granted 367 shares of Smurfit Westrock Group¹⁰
• Dec 18, 2025Granted 346 shares of Smurfit Westrock Group¹¹
• Sep 18, 2025Granted 298 shares of Smurfit Westrock Group¹²
• Jun 18, 2025Granted 309 shares of Smurfit Westrock Group¹³
• May 2, 2025Shares withheld for tax 640 shares at $40.47 of Smurfit Westrock Group¹⁴
• May 2, 2025Granted 4,239 shares of Smurfit Westrock Group¹⁴
• Mar 18, 2025Granted 248 shares of Smurfit Westrock Group¹⁵
• Mar 11, 2025Granted 1,332 shares of Smurfit Westrock Group¹⁶
• Dec 18, 2024Granted 144 shares of Smurfit Westrock Group¹⁷
• Sep 18, 2024Granted 158 shares of Smurfit Westrock Group¹⁸
• Jul 5, 2024Granted 4,190 shares of Smurfit Westrock Group¹⁹
• Jul 5, 2024Returned to company 26,796 shares of WestRock Co⁷
• Jul 5, 2024Granted 22,605 shares of Smurfit Westrock Group¹⁹
• Feb 5, 2024Granted 4,139 shares of WestRock Co²⁰
• Feb 3, 2023Granted 4,586 shares of WestRock Co²¹
• Feb 7, 2022Granted 3,533 shares at $45.29 of WestRock Co²²
• Feb 1, 2016Shares withheld for tax 2,218 shares at $124.49 of IBM⁵
• Feb 1, 2016Granted 6,438 shares of IBM⁵
• Jul 24, 2015Exercised options 1,172 shares at $102.80 of IBM²³
• Jul 24, 2015Exercised options 1,560 shares at $82.76 of IBM²³
• May 4, 2015Sold 5,628 shares at $175.95 of IBM²⁴