Mpm Asset Management LLC

CIK 0001263048

10% Owner

Filings

Latest Jan 14, 2026

Issuers covered

Showing

13 of 13

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Track record

30 of 31 open-market trades scored (97% price coverage) - 1 issuer without price data. Returns are signed: a +10% move on a sale shows as -10% (insider was wrong).

Horizon	Trades	Win rate	Avg	Median	Best	Worst
30 days	30	83%	+20.3%	+25.4%	+42.2%	-17.0%
90 days	30	93%	+34.7%	+36.3%	+61.6%	-20.3%
180 days	29	97%	+42.6%	+46.9%	+56.8%	-67.3%
365 days	1	100%	+27.0%	+27.0%	+27.0%	+27.0%

Issuers

Companies where Mpm Asset Management LLC has filed

Ticker	Issuer	Filings	Last filed
HOWL	Werewolf Therapeutics, Inc.	10	Dec 4, 2025
TCRR	Tcr2 Therapeutics Inc.	2	Jun 5, 2023
AKTS	Aktis Oncology, Inc.	1	Jan 14, 2026

All filings

13 Form 4 / 4-A filings, newest first

Filed	Issuer	Top transaction	Shares	Price	Value
Jan 14, 2026	AKTSAktis Oncology, Inc.	PPurchase	1,112,777	$18.00	$20,029,986
Dec 4, 2025	HOWLWerewolf Therapeutics, Inc.	SSale	83,230	$0.97	$80,733
Dec 1, 2025	HOWLWerewolf Therapeutics, Inc.	SSale	60,733	$0.98	$59,518
Nov 25, 2025	HOWLWerewolf Therapeutics, Inc.	SSale	88,802	$0.98	$87,026
Nov 20, 2025	HOWLWerewolf Therapeutics, Inc.	SSale	66,324	$0.94	$62,345
Nov 17, 2025	HOWLWerewolf Therapeutics, Inc.	SSale	90,951	$0.98	$89,132
Nov 12, 2025	HOWLWerewolf Therapeutics, Inc.	SSale	68,480	$1.11	$76,013
Nov 6, 2025	HOWLWerewolf Therapeutics, Inc.	SSale	140,488	$1.22	$171,395
Nov 3, 2025	HOWLWerewolf Therapeutics, Inc.	SSale	114,044	$1.28	$145,976
Oct 29, 2025	HOWLWerewolf Therapeutics, Inc.	SSale	134,240	$1.55	$208,072
Apr 30, 2025	HOWLWerewolf Therapeutics, Inc.	SSale	4,386	$1.05	$4,605
Jun 5, 2023	TCRRTcr2 Therapeutics Inc.	JOther	4,158,964	$0.00	$0
May 24, 2023	TCRRTcr2 Therapeutics Inc.	SSale	70,170	$1.88	$131,920

Showing 1-13 of 13

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Real-time Form 4 intelligence. Smarter insider tracking.

Filed		Top transaction	Shares	Price	Value