Latest Partners HealthCare System, Inc Stock Portfolio
$361Million | No. of Holdings #6
Partners HealthCare System, Inc Performance
2026 Q2+4.93%
YTD+4.88%
About Partners HealthCare System, Inc and 13F Hedge Fund Stock Holdings
On 2026-08-07, the fund reported it's updated stock portfolio. In the 13F Holdings report, Mass General Brigham, Inc reported an equity portfolio of $361.1 Millions as of 30 Jun, 2026. <br><br> The top stock holdings of Mass General Brigham, Inc are AAXJ, , RVMD. The fund has invested 54.8% of it's portfolio in ISHARES TR and 21.6% of portfolio in KARMAN HLDGS INC. <br><br> They significantly reduced their stock positions in ISHARES TR (AAXJ) and MEDLINE INC.
Partners HealthCare System, Inc Equity Portfolio Value
Last Reported on: 07 Aug, 2026
$361Million
as of Aug 07, 2026Partners HealthCare System, Inc Annual Return Estimates Vs S&P 500
Our best estimate is that Mass General Brigham, Inc made a return of 4.93% in the last quarter. In trailing 12 months, it's portfolio return was NA%.
- Performance
- S&P 500
New Buys
No new stocks were added by Partners HealthCare System, Inc
Additions
No additions were made to existing positions by Partners HealthCare System, Inc
Reductions
| Ticker | % Reduced |
|---|---|
| ishares tr | -41.51 |
| medline inc | -2.76 |
Partners HealthCare System, Inc reduced stake in above stock
Sold off
None of the stocks were completely sold off by Partners HealthCare System, Inc
Sector Distribution
Mass General Brigham, Inc has about 79.1% of it's holdings in Others sector.
- Others
- Healthcare
| Sector | % |
|---|---|
| Others | 79.1 |
| Healthcare | 20.9 |
Market Cap. Distribution
Mass General Brigham, Inc has about 17.8% of it's portfolio invested in the large-cap and mega-cap stocks.
- UNALLOCATED
- LARGE-CAP
- MID-CAP
| Category | % |
|---|---|
| UNALLOCATED | 79.1 |
| LARGE-CAP | 17.8 |
| MID-CAP | 3.1 |
Stocks belong to which Index?
About 20.9% of the stocks held by Mass General Brigham, Inc either belong to S&P 500 or RUSSELL 2000 index.
- Others
- RUSSELL 2000
| Index | % |
|---|---|
| Others | 79.1 |
| RUSSELL 2000 | 20.9 |
| Top 5 Losers (%) | % | |
|---|---|---|
karman hldgs inc | -37.6 % | |
medline inc | -11.2 % | |
maze therapeutics inc | -0.0 % | |
| Top 5 Losers ($) | $ | |
|---|---|---|
karman hldgs inc | -47.1 M | |
medline inc | -0.4 M | |
maze therapeutics inc | 0.0 M | |
Partners HealthCare System, Inc Holdings Map
This heatmap illustrates the top 50 positions within the fund's portfolio.
Current Stock Holdings of Partners HealthCare System, Inc
Mass General Brigham, Inc has 6 stocks in it's portfolio. proved to be the most loss making stock for the portfolio. AAXJ was the most profitable stock for Mass General Brigham, Inc last quarter.
$361.08MTotal Value
6.00Positions
07 Aug, 2026Last Reported
| Expand | Holdingsorted ascending | % Portfolio | Shares Held | $ Value | % Change |
|---|---|---|---|---|---|
 AAXJ Ishares TrIshares TrAAXJ | 54.76% | 1,259,660 | $197.73M 54.76% | 41.51%decreased 41.51 percentreduced | |
 Revolution Medicines Inc Partners HealthCare System, Inc's holding in Revolution Medicines Inc over time | 17.85% | 344,091 | $64.44M 17.85% | 0%unchanged 0 percentunchanged | |
 Tango Therapeutics Inc Partners HealthCare System, Inc's holding in Tango Therapeutics Inc over time | 3.07% | 354,192 | $11.07M 3.07% | 0%unchanged 0 percentunchanged | |
Com Karman Hldgs IncKarman Hldgs Inc | 21.6% | 1,562,050 | $77.98M 21.6% | 0%unchanged 0 percentunchanged | |
Com Maze Therapeutics IncMaze Therapeutics Inc | 1.98% | 239,994 | $7.16M 1.98% | 0%unchanged 0 percentunchanged | |
Com Medline IncMedline Inc | 0.75% | 68,413 | $2.70M 0.75% | 2.76%decreased 2.76 percentreduced | |