MPM BioImpact LLC
13F Reported Value
ⓘ$1.6B
Holdings
37
Latest Filing
2026-06-30
Filing Quarter
Q2 2026
Portfolio Overview
MPM BioImpact LLC disclosed 37 positions worth $1.6B in its Form 13F-HR for Q2 2026, led by $CGEM (Cullinan Therapeutics, Inc.) at 10.8% of the equity portfolio, followed by $AKTS and $LQDA. During the quarter the fund opened 7 new positions and exited 11 — including a new stake in $RARE and a full exit from $AGIO. The portfolio is most concentrated in Healthcare (100.0% of disclosed assets). All figures are sourced directly from MPM BioImpact LLC’s Form 13F-HR filing with the SEC under CIK 1687078.
AI Fund Analysis
ConcentratingSector Allocation
AUM History
Top Equity Holdings by Value
Quarterly Activity — Q2 2026
Click any card to unlockTop Holdings
- —
Quality
$177.2M9,731,341 sh - —
Quality
$155.9M4,835,872 sh - 78.3#56
Quality
$110.5M1,386,174 sh - —
Quality
$92.2M492,483 sh - 57.8
Quality
$67.0M771,028 sh - —
Quality
$65.9M1,620,780 sh - 56.6
Quality
$63.8M1,122,731 sh - —
Quality
$60.1M3,666,284 sh - —
Quality
$57.3M3,073,577 sh - 7.1
Quality
$56.8M2,019,020 sh
| Company | Quality | Value | Shares |
|---|---|---|---|
| — | $177.2M | 9,731,341 | |
| — | $155.9M | 4,835,872 | |
| 78.3#56 | $110.5M | 1,386,174 | |
| — | $92.2M | 492,483 | |
| 57.8 | $67.0M | 771,028 | |
| — | $65.9M | 1,620,780 | |
| 56.6 | $63.8M | 1,122,731 | |
| — | $60.1M | 3,666,284 | |
| — | $57.3M | 3,073,577 | |
| 7.1 | $56.8M | 2,019,020 |
Unlock AI quality scores for every holding
32-signal composite ranking on each of MPM BioImpact LLC's 37 positions.
Showing top 10 of 37 holdings.
Sector Allocation
Healthcare
$1.6B
Full Holdings — MPM BioImpact LLC (Q2 2026)
All 37 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.
| # | Ticker | Company | Value | Weight | QoQ | Quality |
|---|---|---|---|---|---|---|
| 1 | Cullinan Therapeutics, Inc. | $177.2M | 10.8% | +27% | — | |
| 2 | Aktis Oncology, Inc. | $155.9M | 9.5% | +0% | — | |
| 3 | Liquidia Corp | $110.5M | 6.7% | -1% | 78.3 | |
| 4 | Revolution Medicines, Inc. | $92.2M | 5.6% | -3% | — | |
| 5 | CORCEPT THERAPEUTICS INC | $67.0M | 4.1% | -22% | 57.8 | |
| 6 | Edgewise Therapeutics, Inc. | $65.9M | 4.0% | -2% | — | |
| 7 | Travere Therapeutics, Inc. | $63.8M | 3.9% | -1% | 56.6 | |
| 8 | DBV Technologies S.A. | $60.1M | 3.7% | -30% | — | |
| 9 | Trevi Therapeutics, Inc. | $57.3M | 3.5% | -7% | — | |
| 10 | ALUMIS INC. | $56.8M | 3.5% | -15% | 7.1 | |
| 11 | uniQure N.V. | $56.5M | 3.4% | -10% | — | |
| 12 | Ultragenyx Pharmaceutical Inc. | $47.4M | 2.9% | NEW | 34.2 | |
| 13 | Relay Therapeutics, Inc. | $45.2M | 2.8% | +2% | 19.5 | |
| 14 | Abivax S.A. | $44.8M | 2.7% | +214% | — | |
| 15 | Dyne Therapeutics, Inc. | $42.7M | 2.6% | +36% | — | |
| 16 | Dianthus Therapeutics, Inc. /DE/ | $40.9M | 2.5% | -1% | 22.6 | |
| 17 | BioAge Labs, Inc. | $40.9M | 2.5% | NEW | 26.8 | |
| 18 | UroGen Pharma Ltd. | $34.3M | 2.1% | -1% | — | |
| 19 | MoonLake Immunotherapeutics | $31.3M | 1.9% | -11% | — | |
| 20 | PALVELLA THERAPEUTICS, INC. | $31.2M | 1.9% | -1% | — | |
| 21 | Taysha Gene Therapies, Inc. | $30.6M | 1.9% | NEW | 4.9 | |
| 22 | Syndax Pharmaceuticals Inc | $29.2M | 1.8% | -1% | 33.8 | |
| 23 | Monte Rosa Therapeutics, Inc. | $28.1M | 1.7% | -1% | 30.3 | |
| 24 | Zura Bio Ltd | $26.4M | 1.6% | NEW | — | |
| 25 | Natera, Inc. | $25.1M | 1.5% | -0% | 53.5 | |
| 26 | Stoke Therapeutics, Inc. | $23.7M | 1.4% | -6% | 24.9 | |
| 27 | Adlai Nortye Group Ltd. | $22.3M | 1.4% | NEW | — | |
| 28 | BELITE BIO, INC | $21.1M | 1.3% | +56% | — | |
| 29 | Forte Biosciences, Inc. | $21.0M | 1.3% | -1% | — | |
| 30 | Oric Pharmaceuticals, Inc. | $20.4M | 1.2% | +4% | — | |
| 31 | Tarsus Pharmaceuticals, Inc. | $20.3M | 1.2% | -2% | 55 | |
| 32 | Annexon, Inc. | $20.2M | 1.2% | NEW | — | |
| 33 | BRIGHT MINDS BIOSCIENCES INC. | $14.2M | 0.9% | -5% | — | |
| 34 | Entrada Therapeutics, Inc. | $9.2M | 0.6% | NEW | 7.3 | |
| 35 | Aclaris Therapeutics, Inc. | $5.5M | 0.3% | +166% | 12 | |
| 36 | Context Therapeutics Inc. | $719,542 | 0.0% | -88% | — | |
| 37 | Werewolf Therapeutics, Inc. | $28,851 | 0.0% | -93% | — |
New Positions (7)
Exited Positions (11)
Browse Top Institutional Investors
13F Pro tracks 8,700+ institutional investors filing 13F reports with the SEC.
to search all 8,700+ institutional filers.
Available Analysis
13F Pro tracks comprehensive institutional data for MPM BioImpact LLC including:
Track MPM BioImpact LLC's Full Portfolio
See every holding, quarter-over-quarter changes, sector allocation, and accumulation patterns for MPM BioImpact LLC and 8,700+ other institutional investors.
Free tier includes full 13F search and fund profiles. Pro starts at $6.67/mo (billed annually).
AI-Powered Hedge Fund Analysis: MPM BioImpact LLC
13F Pro is an AI hedge fund tracker and stock research platform. For MPM BioImpact LLC (SEC CIK: 1687078), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.
Every holding in MPM BioImpact LLC's portfolio is scored on a 32-signal AI quality ranking (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.