Mpm Asset Management Llc (CIK 0001263048)

Latest company ownership

HOWL - Werewolf Therapeutics, Inc.

Role: 10% Owner

Shares held

4,983,843

Last filed at

Dec 4, 2025

Confidence Score

40.6

2026Q1

Confidence Score History

2025Q1 2026Q1

Recent buy/sell transactions

Exec date	Filing date	Company	Role	Signal	Confidence	Shares	% of shares	Under plan?	Amount (USD)
Dec 2, 2025	Dec 4, 2025	Werewolf Therapeutics, Inc.	Other	Sell	37.5	-199,732	-4.01%	✓	$183.3K
Nov 26, 2025	Dec 1, 2025	Werewolf Therapeutics, Inc.	10% Owner	Sell	41.3	-141,927	-2.77%	✓	$136.9K
Nov 21, 2025	Nov 25, 2025	Werewolf Therapeutics, Inc.	10% Owner	Sell	37.5	-195,666	-3.68%	✓	$179.6K
Nov 18, 2025	Nov 20, 2025	Werewolf Therapeutics, Inc.	10% Owner	Sell	41.3	-160,103	-2.92%	✓	$147.9K
Nov 13, 2025	Nov 17, 2025	Werewolf Therapeutics, Inc.	10% Owner	Sell	37.5	-209,652	-3.68%	✓	$200.7K
Nov 7, 2025	Nov 12, 2025	Werewolf Therapeutics, Inc.	10% Owner	Sell	37.5	-213,529	-3.62%	✓	$241.3K
Nov 4, 2025	Nov 6, 2025	Werewolf Therapeutics, Inc.	10% Owner	Sell	35.0	-242,890	-3.95%	✓	$295.8K
Oct 30, 2025	Nov 3, 2025	Werewolf Therapeutics, Inc.	10% Owner	Sell	35.0	-295,043	-4.58%	✓	$391.6K
Oct 27, 2025	Oct 29, 2025	Werewolf Therapeutics, Inc.	10% Owner	Sell	35.0	-276,017	-4.11%	✓	$446.4K
Mar 27, 2025	Apr 30, 2025	Werewolf Therapeutics, Inc.	10% Owner	Sell	52.5	-4,386	-0.07%	✗	$4.6K