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MPM BIOIMPACT LLC

Q3 2025 · Filed 2025-11-14
Market Value
$575M
+4.2%
Holdings
45
-2
New Purchases
5
Added To
3
Closed
10
Reduced
2
Top 10 Concentration
51.8%
Turnover
33.3%

Top Buys (by % of Portfolio)

SymbolCur %Prior %Chg %Value
SNDX 3.68% 0.00% +3.68% $21M
MDGL 8.00% 5.50% +2.50% $46M
TRVI 5.42% 3.37% +2.04% $31M
RNAM 5.75% 3.91% +1.85% $33M
XENE 3.51% 1.83% +1.68% $20M
STOK 3.22% 1.62% +1.60% $19M
SRPT 2.34% 1.00% +1.35% $13M
TARS 3.53% 2.50% +1.02% $20M
PTCT 4.68% 3.88% +0.80% $27M
LQDA 0.79% 0.00% +0.79% $5M
EWTX 4.85% 4.08% +0.77% $28M
PVLA 0.73% 0.00% +0.73% $4M
CNTX 2.48% 1.74% +0.73% $14M
DYN 3.18% 2.49% +0.69% $18M
RLAY 2.07% 1.43% +0.64% $12M

Top Sells (by % of Portfolio)

SymbolCur %Prior %Chg %Value
GH 0.00% 4.17% -4.17% $0
MLTX 0.00% 2.68% -2.68% $0
MBX 0.00% 2.67% -2.67% $0
CGEM 7.88% 10.42% -2.54% $45M
CRNX 0.00% 2.23% -2.23% $0
SPRY 2.28% 4.12% -1.84% $13M
OLMA 0.00% 1.83% -1.83% $0
REPL 0.00% 1.65% -1.65% $0
NUVB 0.00% 1.63% -1.63% $0
TSHA 0.00% 1.23% -1.23% $0
RNAC 0.67% 1.29% -0.62% $4M
RARE 2.07% 2.60% -0.54% $12M
AKBA 1.37% 1.90% -0.53% $8M
ZLAB 4.39% 4.72% -0.33% $25M
NTRA 2.77% 3.02% -0.26% $16M

Sector Allocation Over Time

Market Cap Concentration

TierHoldingsValueWeight
Large Cap 5 $110M 19.1%
Mid Cap 14 $231M 40.2%
Small Cap 19 $184M 32.0%
Micro Cap 7 $50M 8.7%

Portfolio Analytics

Avg Market Cap
$3.9B
Median Market Cap
$1.6B
Avg P/E
102.6
Median P/E
40.0
Avg Dividend Yield
—%
Avg Beta
0.82
# Stocks
45
# ETFs / Funds
0

Top Holdings (45 total)

# Symbol % Port Shares Value Avg Price Q/Q Value Chg Share Chg Chg % Status
1 MDGL 8.00% 100,415 $46M $458.66 $16M
2 CGEM 7.88% 7,648,268 $45M $5.93 -$12M
3 RNAM 5.75% 760,022 $33M $43.57 $12M
4 TRVI 5.42% 3,406,955 $31M $9.15 $13M
5 EWTX 4.85% 1,720,741 $28M $16.22 $5M
6 PTCT 4.68% 438,477 $27M $61.37 $5M
7 ZLAB 4.39% 745,060 $25M $33.89 -$805K
8 SNDX 3.68% 1,375,674 $21M $15.38 +1,375,674 NEW
9 ORIC 3.61% 1,729,378 $21M $12.00 $3M
10 TARS 3.53% 341,496 $20M $59.43 $6M
11 XENE 3.51% 503,398 $20M $40.15 $10M +180,000 +55.7%
12 STOK 3.22% 789,698 $19M $23.50 $10M
13 DYN 3.18% 1,446,361 $18M $12.65 $5M
14 CMPX 3.09% 5,075,970 $18M $3.50 $3M -546,535 -9.7%
15 ALKS 2.86% 549,262 $16M $30.00 $763K
16 VERA 2.84% 563,075 $16M $29.06 $3M
17 NTRA 2.77% 98,924 $16M $160.97 -$788K
18 JANX 2.61% 614,282 $15M $24.44 $823K
19 RVMD 2.56% 315,722 $15M $46.70 $3M
20 CNTX 2.48% 14,705,882 $14M $0.97 $5M
21 SRPT 2.34% 700,000 $13M $19.27 $8M +378,304 +117.6%
22 SPRY 2.28% 1,303,399 $13M $10.05 -$10M
23 RCKT 2.21% 3,903,381 $13M $3.26 $3M +300 +0.0%
24 RLAY 2.07% 2,282,680 $12M $5.22 $4M
25 RARE 2.07% 395,700 $12M $30.08 -$2M
26 WVE 1.91% 1,505,262 $11M $7.32 $1M
27 AKBA 1.37% 2,889,125 $8M $2.73 -$3M
28 HOWL 0.82% 2,408,810 $5M $1.97 $2M
29 LQDA 0.79% 200,000 $5M $22.74 +200,000 NEW
30 PVLA 0.73% 67,423 $4M $62.69 +67,423 NEW
31 DSGN 0.73% 555,187 $4M $7.53 $2M
32 RNAC 0.67% 380,000 $4M $10.22 -$3M -306,007 -44.6%
33 URGN 0.47% 135,000 $3M $19.95 +135,000 NEW
34 RAPP 0.37% 71,807 $2M $29.70 +71,807 NEW
35 RPTX 0.25% 819,924 $1M $1.76 $303K
36 TSHA —% -$7M -2,953,562 -100.0% SOLD
37 CRNX —% -$12M -428,975 -100.0% SOLD
38 ACLX —% -$2K -37 -100.0% SOLD
39 MBX —% -$15M -1,294,416 -100.0% SOLD
40 GH —% -$23M -442,656 -100.0% SOLD
41 NUVB —% -$9M -4,622,590 -100.0% SOLD
42 MLTX —% -$15M -313,571 -100.0% SOLD
43 REPL —% -$9M -983,780 -100.0% SOLD
44 ADAP —% -$1M -4,411,821 -100.0% SOLD
45 OLMA —% -$10M -2,378,762 -100.0% SOLD

New Positions

SymbolValue% Port
SNDX $21M 3.68%
LQDA $5M 0.79%
PVLA $4M 0.73%
URGN $3M 0.47%
RAPP $2M 0.37%

Sold Out Positions

SymbolValue% Port
NUVB —%
GH —%
MBX —%
MLTX —%
CRNX —%
TSHA —%
REPL —%
OLMA —%
ACLX —%
ADAP —%
View SEC EDGAR Filings for MPM BIOIMPACT LLC →

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms