Mass General Brigham
SOMERVILLE, MAfiles as Mass General Brigham, Inc
$361m in 6 US stocks at the end of 30 June 2026. The top 10 are 100.0% of the money. It changed about 12.7% of the portfolio this quarter.
Value
$361m
Stocks
6
Top 10 share
100.0%
Turnover
12.7%
What changed this quarter
New
Bought for the first time this quarter.
None this quarter.
Added
Bought more of a stock they already held.
None this quarter.
Cut
Sold some of their stake.
- Ishares TRACWI54.8% of the fund-42%
- MedlineMDLN0.7% of the fund-3%
Sold out
Sold their entire stake.
None this quarter.
Holdings
- Ishares TRACWI
- Share
- 54.8%
- Value
- $198m
- Shares
- 1,259,657
-42%
| Company | Share of fund | Value | Shares | Change |
|---|---|---|---|---|
| Ishares TRACWI | 54.8% | $198m | 1,259,657 | -42% |
| Karman HoldingsKRMN | 21.6% | $78m | 1,562,054 | Held |
| Revolution MedicinesRVMD | 17.8% | $64m | 344,091 | Held |
| Tango TherapeuticsTNGX | 3.1% | $11m | 354,192 | Held |
| Maze TherapeuticsMAZE | 2.0% | $7m | 239,994 | Held |
| MedlineMDLN | 0.7% | $3m | 68,413 | -3% |
Over time and by industry
Value over time
Dec '25
Jun '26
Value is down 55.4% since 31 December 2025.
Where the money is
Health care23.6%
Industrials21.6%
Other54.8%
From the fund's 13F filings. They list US stocks and options only, 45 days after each quarter, and leave out cash, bonds, shorts and foreign shares.