Mpm Asset Management LLC

High-turnover traderConcentrated strategyQuality / disciplined sizing

Total reported value

$44.5M

Reporting period: 2025-09-30 · Number of holdings: 4

MPM ASSET MANAGEMENT LLC disclosed 4 holdings in its latest 13F filing for the period ending 2025-09-30, with total reported value of $44.5M and a quarterly turnover rate of 100.0%.

Personality snowflake

Concentration: 100
Portfolio Stability: 100
Momentum/Contrarian: 50
Sector conviction: 0
Diversification: 8
Sizing Uniformity: 91

Recent moves

Add HOWL
0.0%　-$4.2B
Add DYN
0.0%　-$7.1B
Add RPTX
0.0%　-$1.1B
Add TRDA
0.0%　-$39.6B
Sold out 2662247D
Sold out ADAPY

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

#	Ticker	Issuer	Asset Subclass	Weight	Weight Change	Shares Change
1	TRDA	Entrada Therapeutics INC	Stock-Other	57.09%	+0.05%	—
2	DYN	Dyne Therapeutics INC	Stock-Other	19.40%	+9.12%	—
3	HOWL	Werewolf Therapeutics INC	Stock-Other	19.08%	+13.05%	—
4	RPTX	Repare Therapeutics INC	Stock-Other	4.43%	+2.84%	—

Reported value over time

Sector allocation

Not enough sector-mapped data yet

Sector allocation over time

Quarterly history

Period	Holdings	Total value	Stability	Top holdings
2025-09-30	4	$44.5M	100	1TRDA 2DYN 3HOWL Top holdings2025-09-30 1.TRDA 2.DYN 3.HOWL 4.RPTX
2025-06-30	5	$43.3M	0	1TRDA 2DYN 3HOWL Top holdings2025-06-30 1.TRDA 2.DYN 3.HOWL 4.RPTX 5.ADAPY
2025-03-31	6	$69.4M	100	1TRDA 22662247D 3DYN Top holdings2025-03-31 1.TRDA 2.2662247D 3.DYN 4.HOWL 5.RPTX 6.ADAPY
2024-12-31	6	$124.4M	0	1TRDA 22662247D 3DYN Top holdings2024-12-31 1.TRDA 2.2662247D 3.DYN 4.HOWL 5.ADAPY 6.RPTX
2024-09-30	6	$145.3M	0	1TRDA 22662247D 3DYN Top holdings2024-09-30 1.TRDA 2.2662247D 3.DYN 4.HOWL 5.RPTX 6.ADAPY
2024-06-30	6	$182.1M	0	1TRDA 2DYN 32662247D Top holdings2024-06-30 1.TRDA 2.DYN 3.2662247D 4.HOWL 5.RPTX 6.ADAPY
2024-03-31	6	$245.2M	0	1DYN 2TRDA 32662247D Top holdings2024-03-31 1.DYN 2.TRDA 3.2662247D 4.HOWL 5.RPTX 6.ADAPY
2023-12-31	7	$203.5M	0	1TRDA 2DYN 32662247D Top holdings2023-12-31 1.TRDA 2.DYN 3.2662247D 4.HOWL 5.RPTX 6.ADAPY 7.HARPUSD
2023-09-30	7	$186.7M	0	1TRDA 2DYN 32662247D Top holdings2023-09-30 1.TRDA 2.DYN 3.2662247D 4.RPTX 5.HOWL 6.ADAPY 7.41358P
2023-06-30	8	$203.9M	0	1TRDA 2DYN 32662247D Top holdings2023-06-30 1.TRDA 2.DYN 3.2662247D 4.RPTX 5.HOWL 6.ADAPY 7.41358P 8.68236R
2023-03-31	9	$240.0M	0	1TRDA 2DYN303217L Top holdings2023-03-31 1.TRDA 2.DYN 3.03217L 4.2662247D 5.RPTX 6.HOWL 7.TCRRUSD 8.41358P 9.68236R
2022-12-31	9	$239.0M	0	1TRDA 2DYN 32662247D Top holdings2022-12-31 1.TRDA 2.DYN 3.2662247D 4.RPTX 5.03217L 6.HOWL 7.TCRRUSD 8.41358P 9.68236R
2022-09-30	9	$262.6M	0	1TRDA 2DYN 32662247D Top holdings2022-09-30 1.TRDA 2.DYN 3.2662247D 4.RPTX 5.HOWL 6.03217L 7.TCRRUSD 8.41358P 9.68236R
2022-06-30	10	$237.0M	0	12662247D 2TRDA 3DYN Top holdings2022-06-30 1.2662247D 2.TRDA 3.DYN 4.RPTX 5.03217L 6.HOWL 7.TCRRUSD 8.41358P 9.RYTM 10.68236R
2022-03-31	10	$292.6M	0	12662247D 2DYN 3TRDA Top holdings2022-03-31 1.2662247D 2.DYN 3.TRDA 4.RPTX 5.03217L 6.HOWL 7.41358P 8.TCRRUSD 9.RYTM 10.68236R
2021-12-31	10	$462.7M	0	12662247D 2TRDA 3DYN Top holdings2021-12-31 1.2662247D 2.TRDA 3.DYN 4.HOWL 5.RPTX 6.03217L 7.41358P 8.TCRRUSD 9.68236R 10.RYTM
2021-09-30	9	$431.5M	0	12662247D 2DYN 3HOWL Top holdings2021-09-30 1.2662247D 2.DYN 3.HOWL 4.RPTX 5.TCRRUSD 6.03217L 7.68236R 8.41358P 9.RYTM
2021-06-30	9	$537.9M	98	1DYN 22662247D 3HOWL Top holdings2021-06-30 1.DYN 2.2662247D 3.HOWL 4.RPTX 5.TCRRUSD 6.41358P 7.68236R 8.CHMA 9.RYTM
2021-03-31	8	$517.6M	31	12662247D 2TCRRUSD 3RPTX Top holdings2021-03-31 1.2662247D 2.TCRRUSD 3.RPTX 4.DYN 5.41358P 6.68236R 7.RYTM 8.CHMA
2020-12-31	8	$706.6M	37	12662247D 2TCRRUSD 3DYN Top holdings2020-12-31 1.2662247D 2.TCRRUSD 3.DYN 4.RPTX 5.68236R 6.41358P 7.RYTM 8.CHMA
2020-09-30	8	$536.3M	52	1DYN 2RPTX 32662247D Top holdings2020-09-30 1.DYN 2.RPTX 3.2662247D 4.TCRRUSD 5.41358P 6.RYTM 7.SNDX 8.CHMA
2020-06-30	6	$336.1M	69	1RPTX241358P3TCRRUSD Top holdings2020-06-30 1.RPTX 2.41358P 3.TCRRUSD 4.RYTM 5.SNDX 6.CHMA
2020-03-31	5	$164.4M	37	141358P2RYTM 3TCRRUSD Top holdings2020-03-31 1.41358P 2.RYTM 3.TCRRUSD 4.SNDX 5.CHMA
2019-12-31	5	$227.2M	10	141358P2TCRRUSD 3RYTM Top holdings2019-12-31 1.41358P 2.TCRRUSD 3.RYTM 4.CHMA 5.SNDX
2019-09-30	5	$233.7M	11	1RYTM241358P3TCRRUSD Top holdings2019-09-30 1.RYTM 2.41358P 3.TCRRUSD 4.CHMA 5.SNDX
2019-06-30	5	$247.5M	29	1RYTM241358P3TCRRUSD Top holdings2019-06-30 1.RYTM 2.41358P 3.TCRRUSD 4.CHMA 5.SNDX
2019-03-31	7	$242.5M	74	1RYTM 2TCRRUSD341358P Top holdings2019-03-31 1.RYTM 2.TCRRUSD 3.41358P 4.CHMA 5.SNDX 6.CNATEUR 7.PETXEUR
2018-12-31	6	$118.2M	23	1RYTM 2CHMA 3SNDX Top holdings2018-12-31 1.RYTM 2.CHMA 3.SNDX 4.CNATEUR 5.PRTOEUR 6.PETXEUR
2018-09-30	7	$147.7M	73	1RYTM 2CHMA 3SNDX Top holdings2018-09-30 1.RYTM 2.CHMA 3.SNDX 4.CNATEUR 5.29266S 6.PRTOEUR 7.PETXEUR
2018-06-30	9	$258.2M	35	1RDUSEUR 2RYTM 3SNDX Top holdings2018-06-30 1.RDUSEUR 2.RYTM 3.SNDX 4.CNATEUR 5.CHMA 6.29266S 7.PRTOEUR 8.PETXEUR 9.02155H
2018-03-31	9	$259.6M	25	1RDUSEUR 2RYTM 3SNDX Top holdings2018-03-31 1.RDUSEUR 2.RYTM 3.SNDX 4.CNATEUR 5.CHMA 6.29266S 7.PRTOEUR 8.PETXEUR 9.02155H
2017-12-31	9	$249.5M	53	1RDUSEUR 2RYTM 3SNDX Top holdings2017-12-31 1.RDUSEUR 2.RYTM 3.SNDX 4.CHMA 5.CNATEUR 6.29266S 7.PRTOEUR 8.PETXEUR 9.02155H
2017-09-30	8	$204.9M	18	1RDUSEUR 2SNDX 3CHMA Top holdings2017-09-30 1.RDUSEUR 2.SNDX 3.CHMA 4.CNATEUR 5.29266S 6.PRTOEUR 7.PETXEUR 8.02155H
2017-06-30	9	$230.2M	14	1RDUSEUR 2SNDX 3CHMA Top holdings2017-06-30 1.RDUSEUR 2.SNDX 3.CHMA 4.CNATEUR 5.29266S 6.PETXEUR 7.PRTOEUR 8.91914N 9.02155H
2017-03-31	8	$207.9M	20	1RDUSEUR 2SNDX 3CHMA Top holdings2017-03-31 1.RDUSEUR 2.SNDX 3.CHMA 4.29266S 5.CNATEUR 6.PRTOEUR 7.PETXEUR 8.91914N
2016-12-31	8	$211.9M	42	1RDUSEUR 2EPZMEUR 3SNDX Top holdings2016-12-31 1.RDUSEUR 2.EPZMEUR 3.SNDX 4.CHMA 5.29266S 6.CNATEUR 7.PRTOEUR 8.PETXEUR
2016-09-30	8	$305.3M	10	1RDUSEUR 2SNDX 3EPZMEUR Top holdings2016-09-30 1.RDUSEUR 2.SNDX 3.EPZMEUR 4.CHMA 5.29266S 6.PRTOEUR 7.CNATEUR 8.PETXEUR
2016-06-30	14	$308.3M	28	1RDUSEUR 2SNDX 3EPZMEUR Top holdings2016-06-30 1.RDUSEUR 2.SNDX 3.EPZMEUR 4.CHMA 5.29266S 6.PRTOEUR 7.PETXEUR 8.NVROEUR 9.CNATEUR 10.576314
2016-03-31	15	$322.7M	71	1RDUSEUR 2CHMA 3SNDX Top holdings2016-03-31 1.RDUSEUR 2.CHMA 3.SNDX 4.EPZMEUR 5.29266S 6.NVROEUR 7.PRTOEUR 8.PETXEUR 9.CNATEUR 10.15671L
2015-12-31	15	$560.4M	20	1RDUSEUR 2CHMA 3EPZMEUR Top holdings2015-12-31 1.RDUSEUR 2.CHMA 3.EPZMEUR 4.PRTOEUR 5.71714G 6.89685A 7.NVROEUR 8.PETXEUR 9.CNATEUR 10.15671L
2015-09-30	16	$650.1M	31	1RDUSEUR 2CHMA 3PTLAEUR Top holdings2015-09-30 1.RDUSEUR 2.CHMA 3.PTLAEUR 4.EPZMEUR 5.PRTOEUR 6.NVROEUR 7.PETXEUR 8.89685A 9.71714G 10.CNATEUR
2015-06-30	15	$597.6M	41	1RDUSEUR 2PTLAEUR 3EPZMEUR Top holdings2015-06-30 1.RDUSEUR 2.PTLAEUR 3.EPZMEUR 4.PETXEUR 5.NVROEUR 6.PRTOEUR 7.71714G 8.89685A 9.92337C 10.CNATEUR
2015-03-31	15	$468.9M	11	1RDUSEUR 2PTLAEUR 3EPZMEUR Top holdings2015-03-31 1.RDUSEUR 2.PTLAEUR 3.EPZMEUR 4.PETXEUR 5.NVROEUR 6.89685A 7.15117E 8.PRTOEUR 9.71714G 10.CNATEUR
2014-12-31	15	$450.3M	51	1RDUSEUR 2EPZMEUR 3PETXEUR Top holdings2014-12-31 1.RDUSEUR 2.EPZMEUR 3.PETXEUR 4.PTLAEUR 5.NVROEUR 6.89685A 7.15117E 8.71714G 9.PRTOEUR 10.CNATEUR
2014-09-30	13	$305.6M	30	1RDUSEUR 2EPZMEUR 3PTLAEUR Top holdings2014-09-30 1.RDUSEUR 2.EPZMEUR 3.PTLAEUR 4.89685A 5.PETXEUR 6.71714G 7.15117E 8.CNATEUR 9.92337C 10.576314
2014-06-30	14	$297.3M	78	1RDUSEUR 2EPZMEUR 3PTLAEUR Top holdings2014-06-30 1.RDUSEUR 2.EPZMEUR 3.PTLAEUR 4.PETXEUR 5.89685A 6.15117E 7.CNATEUR 8.71714G 9.92337C 10.PCRX
2014-03-31	12	$236.3M	39	1EPZMEUR 2PETXEUR 3MGNX Top holdings2014-03-31 1.EPZMEUR 2.PETXEUR 3.MGNX 4.PTLAEUR 5.15117E 6.71714G 7.CNATEUR 8.92337C 9.PCRX 10.29365M
2013-12-31	12	$309.6M	51	1PETXEUR 2PTLAEUR 3EPZMEUR Top holdings2013-12-31 1.PETXEUR 2.PTLAEUR 3.EPZMEUR 4.MGNX 5.71714G 6.92337C 7.48344T 8.CNATEUR 9.PCRX 10.29365M
2013-09-30	11	$354.6M	55	1EPZMEUR 2PETXEUR 3PTLAEUR Top holdings2013-09-30 1.EPZMEUR 2.PETXEUR 3.PTLAEUR 4.PCRX 5.71714G 6.92337C 7.CNATEUR 8.48344T 9.98887C 10.AVEOEUR
2013-06-30	10	$225.9M	0	1EPZMEUR 2PTLAEUR392337C Top holdings2013-06-30 1.EPZMEUR 2.PTLAEUR 3.92337C 4.PCRX 5.48344T 6.71714G 7.AVEOEUR 8.98887C 9.29365M 10.PETXEUR

Holding changes this quarter

Mpm Asset Management LLC's most significant position changes for 2025-09-30: Sold out: Iteos Therapeutics INC (2662247D); Sold out: Adaptimmune Therapeutics-adr (ADAPY).

Position changes disclosed by Mpm Asset Management LLC for the quarter ending 2025-09-30, including ticker, issuer, weight change, shares change, and action
#	Ticker	Issuer	Weight Change	Shares Change	Action
1	HOWL	Werewolf Therapeutics INC	+13.1%	—	Unchanged
2	DYN	Dyne Therapeutics INC	+9.1%	—	Unchanged
3	RPTX	Repare Therapeutics INC	+2.8%	—	Unchanged
4	TRDA	Entrada Therapeutics INC	+0.1%	—	Unchanged
5	2662247D	Iteos Therapeutics INC	—	EXIT	Sold out
6	ADAPY	Adaptimmune Therapeutics-adr	—	EXIT	Sold out

FAQ

What is Mpm Asset Management LLC and what type of investor is it?

Mpm Asset Management LLC is a investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2025-09-30), the firm manages a tracked equity portfolio valued at approximately $44.5M, spread across 4 disclosed positions.

What are Mpm Asset Management LLC's largest equity positions?

Based on the latest 13F filing, Mpm Asset Management LLC's top holdings by market value are: 1. Entrada Therapeutics INC (TRDA) — $25.4M (57.1%) 2. Dyne Therapeutics INC (DYN) — $8.6M (19.4%) 3. Werewolf Therapeutics INC (HOWL) — $8.5M (19.1%) 4. Repare Therapeutics INC (RPTX) — $2.0M (4.4%)

What changes did Mpm Asset Management LLC make in its most recent portfolio filing?

In the latest quarter, Mpm Asset Management LLC took a more defensive posture — trimming 0 positions and completely exiting 2 holdings. The largest of these moves: Sold out: Iteos Therapeutics INC (2662247D); Sold out: Adaptimmune Therapeutics-adr (ADAPY)

What sectors does Mpm Asset Management LLC focus on?

Sector breakdown data is not yet available for Mpm Asset Management LLC. Check back after the next 13F processing cycle.