Biomea Fusion BMEA Insider Ownership

Updated Oct 10, 2026

Over the past 12 months, Biomea Fusion insiders bought $196,731 of stock on the open market (180K shares) and made no open-market sales.

• Behind Biomea Fusion's open-market purchases in the past 12 months were 2 insiders, and no insider sold.
• Among Biomea Fusion insiders, Michael J.M. Hitchcock (Interim CEO) led open-market buying over the past 12 months with $99,180 of purchases (100K shares); the latest was on December 2, 2025.
• The newest open-market trade among Biomea Fusion insiders came on December 11, 2025, when Rainer M. Erdtmann (Director and officer) made a purchase of 30K shares for $42,999.
• Per Business Quant data, Biomea Fusion insiders hold 6.28Mn shares in total based on their latest Form 4 filings, unchanged from 6.28Mn shares at the end of Q2 2026 and up 2.10% from 6.15Mn shares at the end of Q3 2025.
• Of the 6.28Mn shares held by Biomea Fusion insiders, 881.02K shares (14.03%) are held directly and 5.4Mn shares (85.97%) indirectly, through trusts, partnerships, family members and other entities.
• Business Quant counts 4 insiders with holdings in Biomea Fusion stock, among the officers, directors and 10% owners who have filed a Form 4 in the past two years.
• Biomea Fusion's top three insider holders by shares held are Bihua Chen (3.57Mn shares), Rainer M. Erdtmann (Director and officer, 2.55Mn shares) and Michael J.M. Hitchcock (Interim CEO, 115K shares).
• Bihua Chen holds 56.85% of the combined insider position in Biomea Fusion.
• Institutions held 34.82% of Biomea Fusion's outstanding shares in their Q2 2026 13F filings, insiders about 8.67% based on their latest Form 4 filings, and other investors, including the public, the remaining 56.51%.
• Over the trailing 12 months, 6 insiders reported transactions in BMEA stock across 9 Form 4 filings.
• This summary of Biomea Fusion insider activity covers Form 4 filings through June 12, 2026.