13F

Position

MPM BIOIMPACT LLC in Dyne Therapeutics, Inc.

Back to the book · All holders of DYN

Estimated mark uses implied 13F prices (value ÷ shares). Adds are treated as happening at this quarter’s mark; cuts at last quarter’s. Share jumps can be splits, not buys. This is not realized P&L.

Latest estimated mark −$2.01M$19.56$18.13

QuarterSharesValueImplied pxEst. markFlowWeight
Q4 20251.41M$27.5M3.1%
Q1 20261.41M$25.5M$18.13−$2.01M$50.1K2.0%