Michael R. McDonnell

Companies

• ModernaBoard member Jul 10, 2026 to now¹
• Baxter InternationalBoard member Feb 18, 2026 to now²
• MERIT MEDICAL SYSTEMS INCBoard member May 26, 2022 to now³
• BiogenChief financial officer Aug 20, 2020 to Feb 12, 2025⁴
• IQVIA Holdings, Inc.Chief financial officer Dec 18, 2015 to Jul 7, 2020⁵
• Frontier Communications Parent, Inc.Board member Dec 14, 2018 to Apr 2, 2019⁶

Holdings

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

Shares held

• Biogen BIIB24,341 shares⁷$5.9M at $241.24Feb 10, 2025
• MMMERIT MEDICAL SYSTEMS INC MMSI9,852 shares⁸$888.6K at $90.19May 18, 2026
• Baxter International BAX14,647 shares⁹$362.4K at $24.74May 5, 2026

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

Recent filings

• May 18, 2026Granted 3,457 shares of MERIT MEDICAL SYSTEMS INC⁸
• May 5, 2026Granted 12,836 shares of Baxter International⁹
• Feb 13, 2026Granted 1,811 shares of Baxter International¹⁰
• Jun 2, 2025Sold 1,750 shares at $94.51 of MERIT MEDICAL SYSTEMS INC¹¹
• May 30, 2025Sold 1,750 shares at $94.30 of MERIT MEDICAL SYSTEMS INC¹¹
• May 15, 2025Granted 2,152 shares of MERIT MEDICAL SYSTEMS INC¹²
• Feb 10, 2025Shares withheld for tax 1,371 shares at $142.54 of Biogen⁷
• Feb 10, 2025Exercised options 3,257 shares of Biogen⁷
• Feb 7, 2025Shares withheld for tax 716 shares at $141.35 of Biogen¹³
• Feb 7, 2025Exercised options 2,216 shares of Biogen¹³
• Feb 7, 2025Shares withheld for tax 786 shares at $141.35 of Biogen¹³
• Feb 7, 2025Exercised options 2,335 shares of Biogen¹³
• May 16, 2024Granted 2,431 shares of MERIT MEDICAL SYSTEMS INC¹⁴
• Feb 16, 2024Shares withheld for tax 1,101 shares at $219.08 of Biogen¹⁵
• Feb 16, 2024Exercised options 2,152 shares of Biogen¹⁵
• Feb 16, 2024Shares withheld for tax 2,337 shares at $219.08 of Biogen¹⁵
• Feb 16, 2024Exercised options 4,568 shares of Biogen¹⁵
• Feb 9, 2024Shares withheld for tax 1,431 shares at $240.98 of Biogen¹⁶
• Feb 9, 2024Exercised options 3,257 shares of Biogen¹⁶
• Feb 8, 2024Shares withheld for tax 765 shares at $240.30 of Biogen¹⁷
• Feb 8, 2024Exercised options 2,335 shares of Biogen¹⁷
• Sep 1, 2023Shares withheld for tax 1,332 shares at $267.17 of Biogen¹⁸
• Sep 1, 2023Exercised options 2,603 shares of Biogen¹⁸
• Sep 1, 2023Shares withheld for tax 1,372 shares at $267.17 of Biogen¹⁸
• Sep 1, 2023Exercised options 2,682 shares of Biogen¹⁸