MPM BioVentures 2014 GP 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 BioVentures 2014 GP LLC

Transactions on record: 48; since Feb 14, 2019

Open-market buys: 7; $6.5M

Open-market sells: 4; $200.9K

Companies traded: 3; last filing Nov 25, 2025

Figures computed from official regulatory filings — .

Companies where MPM BioVentures 2014 GP LLC has traded

Werewolf Therapeutics, Inc.3 tx · $179.6K · Nov 25, 2025
iTeos Therapeutics, Inc.30 tx · $3M · Jul 29, 2020
Harpoon Therapeutics, Inc.15 tx · $3.5M · Feb 14, 2019

Track record of MPM BioVentures 2014 GP LLC

Open-market buys: 7

Last buy: Jul 28, 2020

Enough buys on record, but none of them has a 63-day return yet — this happens when the shares stopped trading, or when the buys are too recent. Win rates will appear once returns mature.

Transaction history of MPM BioVentures 2014 GP LLC

Co-insiders of MPM BioVentures 2014 GP LLC

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Werewolf Therapeutics, Inc.Listing on record	Nov 25, 2025	Sell	-42,533	0.92 USD	$39.1K		SEC
Werewolf Therapeutics, Inc.Listing on record	Nov 25, 2025	Sell	-88,802	0.98 USD	$87K		SEC
Werewolf Therapeutics, Inc.Listing on record	Nov 25, 2025	Sell	-64,331	0.83 USD	$53.4K		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-29,440	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-131,645	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	43,687	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-79,281	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-2,361,805	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	457,706	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	24,944	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Buy	89,955	19.00 USD	$1.7M	conv 51ClusterFirst in 12mo	SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Buy	5,994	19.00 USD	$113.9K	conv 51ClusterFirst in 12mo	SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Buy	1,121	19.00 USD	$21.3K	conv 51ClusterFirst in 12mo	SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-2,415,530	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-255,094	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	1,269,230	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-47,674	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-3,824,591	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-128,384	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Buy	3,020	19.00 USD	$57.4K	conv 51ClusterFirst in 12mo	SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	9,033	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	84,655	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-157,529	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	42,605	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	48,336	—	n/a (No price was disclosed in the filing)		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Werewolf Therapeutics, Inc.Listing on record	Nov 25, 2025	Sell	-42,533	0.92 USD	$39.1K		SEC
Werewolf Therapeutics, Inc.Listing on record	Nov 25, 2025	Sell	-88,802	0.98 USD	$87K		SEC
Werewolf Therapeutics, Inc.Listing on record	Nov 25, 2025	Sell	-64,331	0.83 USD	$53.4K		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-29,440	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-131,645	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	43,687	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-79,281	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-2,361,805	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	457,706	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	24,944	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Buy	89,955	19.00 USD	$1.7M	conv 51ClusterFirst in 12mo	SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Buy	5,994	19.00 USD	$113.9K	conv 51ClusterFirst in 12mo	SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Buy	1,121	19.00 USD	$21.3K	conv 51ClusterFirst in 12mo	SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-2,415,530	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-255,094	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	1,269,230	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-47,674	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-3,824,591	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-128,384	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Buy	3,020	19.00 USD	$57.4K	conv 51ClusterFirst in 12mo	SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	9,033	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	84,655	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	OtherD (derivative)	-157,529	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	42,605	—	n/a (No price was disclosed in the filing)		SEC
iTeos Therapeutics, Inc.Listing unverified	Jul 29, 2020	Other	48,336	—	n/a (No price was disclosed in the filing)		SEC