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Mass General Brigham, Inc
Updated 2 days agoManaged by Mass General Brigham, Inc • Latest filing Q3 2026
Portfolio value
$456.3M
Q3 2026
Filings
4
Quarterly 13F history
Top-10 concentration
100.0%
Weight of largest holdings
Annualized return
—
Implied from 13F holdings
Portfolio value history
13F-disclosed portfolio value over 4 quarters
Show data table
| Period | Portfolio value |
|---|---|
| Q4 2025 | $809.8M |
| Q1 2026 | $468.9M |
| Q2 2026 | $361.1M |
| Q3 2026 | $456.3M |
Top holdings
9 positions as of Q3 2026
| # | Stock | Value | Shares | % Portfolio | Change |
|---|---|---|---|---|---|
| 1 | $300.5M | 1.90M | 65.85% | — | |
| 2 | $70.6M | 344.1K | 15.48% | — | |
| 3 | $35.3M | 234.1K | 7.74% | — | |
| 4 | $23.6M | 1.92M | 5.17% | — | |
| 5 | $8.8M | 354.2K | 1.94% | — | |
| 6 | $6.8M | 249.6K | 1.49% | — | |
| 7 | $6.8M | 209.3K | 1.49% | — | |
| 8 | $2.4M | 68.4K | 0.52% | — | |
| 9 | $1.5M | 39.8K | 0.33% | — |