Mary Beth Harler

Companies

• IGM Biosciences, Inc.Board member Oct 4, 2024 to now¹
• IGM Biosciences, Inc.Chief executive officer Oct 4, 2024 to now¹
• IGM Biosciences, Inc.Head, Research & Autoimmunity Apr 23, 2024 to now²

Holdings

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

Shares held

• IBIGM Biosciences, Inc.0 shares³Aug 14, 2025

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

Recent filings

• Aug 14, 2025Returned to company 323,680 shares of IGM Biosciences, Inc.³
• Jul 23, 2025Sold 14,501 shares at $1.27 of IGM Biosciences, Inc.⁴
• Jun 16, 2025Sold 1,522 shares at $1.20 of IGM Biosciences, Inc.⁵
• Mar 14, 2025Sold 7,329 shares at $1.23 of IGM Biosciences, Inc.⁶
• Dec 16, 2024Sold 1,708 shares at $7.48 of IGM Biosciences, Inc.⁷
• Oct 2, 2024Granted 185,000 shares of IGM Biosciences, Inc.⁸
• Sep 13, 2024Sold 1,487 shares at $11.54 of IGM Biosciences, Inc.⁹
• Jul 19, 2024Granted 25,001 shares of IGM Biosciences, Inc.¹⁰
• Jul 19, 2024Granted 54,999 shares of IGM Biosciences, Inc.¹⁰
• Jun 14, 2024Sold 1,570 shares at $7.58 of IGM Biosciences, Inc.¹¹