MRSN Mersana Therapeutics, Inc.: institutional ownership and insider trading
2 funds reported holding $17.6M of Mersana Therapeutics, Inc. in their latest 13F filings; in Q1 2026 funds net bought $0, with 0 new positions and 3 funds selling out; over the last 12 months insiders bought $0 and sold $762 on the open market.
Largest institutional holders of MRSN
- Nextech Invest Ltd. — $17.3M
- Nuveen Asset Management, LLC — $332K
Recent MRSN insider trades
- Oct 27, 2025: Bala Mohan sold 77 shares ($762)
- Sep 12, 2025: Huber Martin H. Jr. sold 2,012 shares ($14.7K)
- Jan 16, 2025: Bala Mohan sold 5,939 shares ($3.45K)
- Jan 16, 2025: Carvajal Alejandra sold 5,096 shares ($2.96K)