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Portfolio (Quarterly) Guide ↗

MPM BIOIMPACT LLC

· CIK 0001687078
13F Portfolio $1.3B AUM 41 positions Filed May 15, 2026 EDGAR ↗ ← All Funds
Q1 2026 Q4 2025 · All 11 New 6 Added 7 Reduced 8 Exited
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
1 ALMS Alumis Inc Healthcare 2,386,529.0 $52.6M 4.06% -15K -0.6% $22.03 +0.6%
2 CRVS Corvus Pharmaceuticals Inc Healthcare 1,674,875.0 $24.5M 1.89% -1.1M -39.0% $14.63 -10.6%
3 QURE Uniqure NV Healthcare 1,369,231.0 $22.4M 1.73% -12K -0.9% $16.35 +50.5%
4 NTRA Natera Inc Healthcare 93,074.0 $18.6M 1.44% -477.0 -0.5% $199.99 +1.9%
5 Climb Bio Inc 2,593,439.0 $17.8M 1.37% -78K -2.9% $6.85
6 Bright Minds Biosciences Inc 212,175.0 $15.5M 1.20% -18K -7.8% $72.97
7 HOWL Werewolf Therapeutics, Inc. Healthcare 1,208,810.0 $1.0M 0.08% -185K -13.3% $0.83 -49.3%

Period Price is the implied market price on the last day of the reporting period, calculated as reported value ÷ shares held. It is not the fund's purchase price or cost basis — the fund may have initiated or added to the position at any point during the quarter at a different price. Since Period shows the price change from that quarter-end snapshot to today's last price — it reflects stock movement after the report date, not the fund's actual return.

Sector Allocation
Healthcare 100.0%