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MAM

MPM Asset Management Portfolio holdings

AUM $44.5M
1-Year Est. Return 47.28%
This Fund
S&P 500
This Quarter Est. Return
-15.41%
1 Year Est. Return
-47.28%
3 Year Est. Return
+5.89%
5 Year Est. Return
-18.52%
10 Year Est. Return
+3.53%
AUM
$43.3M
AUM Growth
-$26.1M
Cap. Flow
-$16.5M
Cap. Flow %
-38.04%
Top 10 Hldgs %
100%
Holding
6
New
–
Increased
–
Reduced
1
Closed
1

Top Buys

No buys this quarter

Top Sells

Rank Stock Value
1
ITOS
iTeos Therapeutics
ITOS
+$16.4M
2
ADAP
Adaptimmune Therapeutics
ADAP
+$140K

Sector Composition

Rank Sector Weight
1 Healthcare 100%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TRDA icon
1
Entrada Therapeutics
TRDA
$227M
$29.4M 67.92%
4,381,062
– –
DYN icon
2
Dyne Therapeutics
DYN
$4.04B
$6.5M 14.99%
682,376
– –
HOWL icon
3
Werewolf Therapeutics
HOWL
$20.8M
$4.7M 10.84%
4,309,860
– –
RPTX
4
DELISTED
Repare Therapeutics
RPTX
$1.56M 3.6%
1,121,318
– –
ADAP
5
DELISTED
Adaptimmune Therapeutics
ADAP
$1.15M 2.66%
4,809,677
-526,038
-10% -$140K
ITOS
6
DELISTED
iTeos Therapeutics
ITOS
– –
-2,738,785
Closed -$16.4M

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BAM
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WAMC
Western Asset Management Company Pasadena, California $45.2M AUM 6.96% 1-Year Est. Return
NLVP
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CIEP
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IPI
Inflection Point Investments London, United Kingdom $46.9M AUM 18.35% 1-Year Est. Return
CC
Corton Capital Carrying Place, Ontario, Canada $40.7M AUM 52.32% 1-Year Est. Return
VSAM
Value Star Asset Management Hong Kong $49.2M AUM 60.1% 1-Year Est. Return

MPM Asset Management's Q2 2025 Portfolio in Review

As of Q2 2025, MPM Asset Management held 6 positions worth $43.3M, down 38% from $69.4M the previous quarter. Its ten largest holdings account for 100% of the portfolio.

MPM Asset Management withdrew a net $16.5M in Q2 2025, closing 1 position and reducing 1 holding. Its most notable exit was iTeos Therapeutics, an estimated $16.4M position sold in full.

By sector, the portfolio is most concentrated in Healthcare at 100% of assets, unchanged from a quarter earlier.

  • MPM Asset Management's biggest Q2 2025 reduction was Adaptimmune Therapeutics, cutting an estimated $140K.
  • MPM Asset Management fully exited iTeos Therapeutics in Q2 2025, selling an estimated $16.4M.
  • MPM Asset Management's ten largest holdings make up 100% of its $43.3M portfolio in Q2 2025.
  • MPM Asset Management opened 0 new positions and closed 1 in Q2 2025.
  • MPM Asset Management's portfolio value fell 38% quarter-over-quarter to $43.3M.

Based on MPM Asset Management's 13F filing for Q2 2025, filed 14 Aug 2025.