MPM ASSET MANAGEMENT LLC Last Quarter Change: USA Stocks, Unchanged

MPM ASSET MANAGEMENT LLC quarter change: USA Stocks, Unchanged

In share positions in stocks (listed in the US), from the quarter ended 2025-06-30 to 2025-09-30, MPM ASSET MANAGEMENT LLC opened 0 positions, added to 0, reduced 0, sold out of 0 and left 4 unchanged. The largest increase in value was HOWL (+$3,792,677); the largest decrease was TRDA (-$4,030,577).

TRDA: Country of operation United States; Class Common; Shares 2025-06-30 4,381,062; Shares 2025-09-30 4,381,062.
HOWL: Country of operation United States; Class Common; Shares 2025-06-30 4,309,860; Shares 2025-09-30 4,309,860.
DYN: Country of operation United States; Class Common; Shares 2025-06-30 682,376; Shares 2025-09-30 682,376.
RPTX: Country of operation —; Class Common; Shares 2025-06-30 1,121,318; Shares 2025-09-30 1,121,318.

Two Form 13F-HR filings compared (SEC CIK 1263048): 2025-06-30 (filed 2025-08-14) and 2025-09-30 (filed 2025-11-14). Rows for the same security, class and put/call are added together. Value change is the filed value at each quarter end, so it includes the price move; share change is the position change.

Stock	Country of operation	Class	Shares 2025-06-30	Shares 2025-09-30	Value 2025-06-30	Value 2025-09-30	Value change
TRDA Entrada Therapeutics, Inc.	United States	Common	4,381,062	4,381,062	$29,440,737	$25,410,160	-$4,030,577
HOWL Werewolf Therapeutics, Inc.	United States	Common	4,309,860	4,309,860	$4,697,747	$8,490,424	+$3,792,677
DYN Dyne Therapeutics, Inc.	United States	Common	682,376	682,376	$6,496,220	$8,632,056	+$2,135,836
RPTX Repare Therapeutics, Inc.		Common	1,121,318	1,121,318	$1,558,632	$1,973,520	+$414,888

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