MPM Asset Management Investors BV2014 LLC

Former 10% Owner at iTeos Therapeutics, Inc. · on record since May 15, 2025
Former 10% Owner at Werewolf Therapeutics, Inc. · on record since Dec 4, 2025
Former 10% Owner at Harpoon Therapeutics, Inc. · on record since Apr 15, 2021
10% owner at TCR2 THERAPEUTICS INC. · on record since Feb 21, 2019
10% owner at Harpoon Therapeutics, Inc. · on record since Feb 14, 2019
10% owner at Repare Therapeutics Inc. · on record since Jun 25, 2020
10% owner at iTeos Therapeutics, Inc. · on record since Jul 29, 2020
10% owner at Oncorus, Inc. · on record since Oct 8, 2020
10% owner at Werewolf Therapeutics, Inc. · on record since Apr 29, 2021
10% owner at Entrada Therapeutics, Inc. · on record since Oct 28, 2021

Insider trading activity of MPM Asset Management Investors BV2014 LLC

Transactions on record: 25; since Oct 8, 2020

Open-market buys: 2; $4.6M

Open-market sells: 12; $3.3M

Companies traded: 5; last filing Dec 1, 2025

Figures computed from official regulatory filings — .

Companies where MPM Asset Management Investors BV2014 LLC has traded

Werewolf Therapeutics, Inc.10 tx · $532.6K · Dec 1, 2025
Entrada Therapeutics, Inc.5 tx · $2M · Nov 4, 2021
iTeos Therapeutics, Inc.2 tx · $933K · Sep 23, 2021
Harpoon Therapeutics, Inc.3 tx · $1.8M · Feb 9, 2021
Oncorus, Inc.5 tx · $2.6M · Oct 8, 2020

Track record of MPM Asset Management Investors BV2014 LLC

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of MPM Asset Management Investors BV2014 LLC

Co-insiders of MPM Asset Management Investors BV2014 LLC

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Werewolf Therapeutics, Inc.Listing on record	Dec 1, 2025	Sell	-20,277	0.99 USD	$20.1K		SEC
Werewolf Therapeutics, Inc.Listing on record	Dec 1, 2025	Sell	-60,733	0.98 USD	$59.5K		SEC
Werewolf Therapeutics, Inc.Listing on record	Dec 1, 2025	Sell	-60,917	0.94 USD	$57.3K		SEC
Werewolf Therapeutics, Inc.Listing on record	Nov 3, 2025	Sell	-86,936	1.43 USD	$124.3K		SEC
Werewolf Therapeutics, Inc.Listing on record	Nov 3, 2025	Sell	-114,044	1.28 USD	$146K		SEC
Werewolf Therapeutics, Inc.Listing on record	Nov 3, 2025	Sell	-94,063	1.29 USD	$121.3K		SEC
Werewolf Therapeutics, Inc.Listing on record	Apr 30, 2025	OtherD (derivative)	-4,015	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Werewolf Therapeutics, Inc.Listing on record	Apr 30, 2025	Sell	-1,963	1.05 USD	$2.1K		SEC
Werewolf Therapeutics, Inc.Listing on record	Apr 30, 2025	OtherD (derivative)	-18,743	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Werewolf Therapeutics, Inc.Listing on record	Apr 30, 2025	Other	22,758	0.09 USD	$2K		SEC
Entrada Therapeutics, Inc.Listing on record	Nov 4, 2021	Other	3,816,760	—	n/a (No price was disclosed in the filing)		SEC
Entrada Therapeutics, Inc.Listing on record	Nov 4, 2021	Buy	100,000	20.00 USD	$2M	conv 44ClusterFirst in 12mo	SEC
Entrada Therapeutics, Inc.Listing on record	Nov 4, 2021	OtherD (derivative)	-3,683,241	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Entrada Therapeutics, Inc.Listing on record	Nov 4, 2021	OtherD (derivative)	-27,617,675	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Entrada Therapeutics, Inc.Listing on record	Nov 4, 2021	Other	509,024	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Sep 23, 2021	Sell	-14,294	27.54 USD	$393.7K		SEC
iTeos Therapeutics, Inc.Listing unverified	Sep 23, 2021	Sell	-19,635	27.47 USD	$539.4K		SEC
Harpoon Therapeutics, Inc.Listing unverified	Feb 9, 2021	Sell	-10,172	20.01 USD	$203.5K		SEC
Harpoon Therapeutics, Inc.Listing unverified	Feb 9, 2021	Sell	-9,400	20.25 USD	$190.4K		SEC
Harpoon Therapeutics, Inc.Listing unverified	Feb 9, 2021	Sell	-72,128	20.04 USD	$1.4M		SEC
Oncorus, Inc.Listing unverified	Oct 8, 2020	Other	775,975	—	n/a (No price was disclosed in the filing)		SEC
Oncorus, Inc.Listing unverified	Oct 8, 2020	Other	1,783,879	—	n/a (No price was disclosed in the filing)		SEC
Oncorus, Inc.Listing unverified	Oct 8, 2020	OtherD (derivative)	-1,783,879	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Oncorus, Inc.Listing unverified	Oct 8, 2020	OtherD (derivative)	-775,975	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Oncorus, Inc.Listing unverified	Oct 8, 2020	Buy	173,776	15.00 USD	$2.6M	conv 44ClusterFirst in 12mo	SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Werewolf Therapeutics, Inc.Listing on record	Dec 1, 2025	Sell	-20,277	0.99 USD	$20.1K		SEC
Werewolf Therapeutics, Inc.Listing on record	Dec 1, 2025	Sell	-60,733	0.98 USD	$59.5K		SEC
Werewolf Therapeutics, Inc.Listing on record	Dec 1, 2025	Sell	-60,917	0.94 USD	$57.3K		SEC
Werewolf Therapeutics, Inc.Listing on record	Nov 3, 2025	Sell	-86,936	1.43 USD	$124.3K		SEC
Werewolf Therapeutics, Inc.Listing on record	Nov 3, 2025	Sell	-114,044	1.28 USD	$146K		SEC
Werewolf Therapeutics, Inc.Listing on record	Nov 3, 2025	Sell	-94,063	1.29 USD	$121.3K		SEC
Werewolf Therapeutics, Inc.Listing on record	Apr 30, 2025	OtherD (derivative)	-4,015	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Werewolf Therapeutics, Inc.Listing on record	Apr 30, 2025	Sell	-1,963	1.05 USD	$2.1K		SEC
Werewolf Therapeutics, Inc.Listing on record	Apr 30, 2025	OtherD (derivative)	-18,743	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Werewolf Therapeutics, Inc.Listing on record	Apr 30, 2025	Other	22,758	0.09 USD	$2K		SEC
Entrada Therapeutics, Inc.Listing on record	Nov 4, 2021	Other	3,816,760	—	n/a (No price was disclosed in the filing)		SEC
Entrada Therapeutics, Inc.Listing on record	Nov 4, 2021	Buy	100,000	20.00 USD	$2M	conv 44ClusterFirst in 12mo	SEC
Entrada Therapeutics, Inc.Listing on record	Nov 4, 2021	OtherD (derivative)	-3,683,241	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Entrada Therapeutics, Inc.Listing on record	Nov 4, 2021	OtherD (derivative)	-27,617,675	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Entrada Therapeutics, Inc.Listing on record	Nov 4, 2021	Other	509,024	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Sep 23, 2021	Sell	-14,294	27.54 USD	$393.7K		SEC
iTeos Therapeutics, Inc.Listing unverified	Sep 23, 2021	Sell	-19,635	27.47 USD	$539.4K		SEC
Harpoon Therapeutics, Inc.Listing unverified	Feb 9, 2021	Sell	-10,172	20.01 USD	$203.5K		SEC
Harpoon Therapeutics, Inc.Listing unverified	Feb 9, 2021	Sell	-9,400	20.25 USD	$190.4K		SEC
Harpoon Therapeutics, Inc.Listing unverified	Feb 9, 2021	Sell	-72,128	20.04 USD	$1.4M		SEC
Oncorus, Inc.Listing unverified	Oct 8, 2020	Other	775,975	—	n/a (No price was disclosed in the filing)		SEC
Oncorus, Inc.Listing unverified	Oct 8, 2020	Other	1,783,879	—	n/a (No price was disclosed in the filing)		SEC
Oncorus, Inc.Listing unverified	Oct 8, 2020	OtherD (derivative)	-1,783,879	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Oncorus, Inc.Listing unverified	Oct 8, 2020	OtherD (derivative)	-775,975	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Oncorus, Inc.Listing unverified	Oct 8, 2020	Buy	173,776	15.00 USD	$2.6M	conv 44ClusterFirst in 12mo	SEC