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MPM BioImpact’s Dyne Therapeutics DYN Stock Holding History

MPM BioImpact’s Portfolio DYN Stock Details DYN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$25.5M Buy
1,408,152
+2,764
+0.2% +$47.7K 1.97% 21
2025
Q4 		$27.5M Sell
1,405,388
-40,973
-3% -$776K 3.15% 11
2025
Q3 		$18.3M Hold
1,446,361
– – 3% 13
2025
Q2 		$13.8M Buy
+1,446,361
New +$15.9M 2.39% 19

Other funds holding DYN

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
OAG
Orbis Allan Gray Hamilton, Bermuda $23.7B AUM 65.43% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
PA
Perceptive Advisors New York $5.06B AUM 314.02% 1-Year Est. Return
FIS
FCPM III Services Naarden, Netherlands $722M AUM 73.61% 1-Year Est. Return