Insider Trading & Ownership of MPM ASSET MANAGEMENT LLC

Location
Boston, MA
Summary
The estimated value of insider holdings of MPM ASSET MANAGEMENT LLC is at least $6,320,962 dollars as of 24 May 2023. MPM ASSET MANAGEMENT LLC is the 10%+ Owner of TCR2 THERAPEUTICS INC. and owns shares of TCR2 THERAPEUTICS INC. stock worth about $6.32M.
Signature
/s/ Luke Evnin, member of MPM Asset Management LLC
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Ownership of MPM ASSET MANAGEMENT LLC

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
TCRR TCR2 THERAPEUTICS INC. 10%+ Owner $6,320,962 22 May 2023

Insider Transactions Reported by MPM ASSET MANAGEMENT LLC:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.