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Latest Partners HealthCare System, Inc Stock Portfolio

About Partners HealthCare System, Inc and 13F Hedge Fund Stock Holdings

In it's latest 13F Holdings report, Mass General Brigham, Inc reported an equity portfolio of $809.8 Millions as of 31 Dec, 2025.

The top stock holdings of Mass General Brigham, Inc are AAXJ, , RVMD. The fund has invested 80.6% of it's portfolio in ISHARES TR and 14.1% of portfolio in KARMAN HLDGS INC.

Mass General Brigham, Inc opened new stock positions in ISHARES TR (AAXJ), KARMAN HLDGS INC and REVOLUTION MEDICINES INC (RVMD).

Partners HealthCare System, Inc Annual Return Estimates Vs S&P 500

New Buys

Ticker$ Bought
ishares tr652,828,000
karman hldgs inc114,295,000
revolution medicines inc27,406,800
maze therapeutics inc9,942,950
tango therapeutics inc3,138,140
medline inc1,104,350
rubrik inc1,070,720
New stocks bought by Partners HealthCare System, Inc

Additions

No additions were made to existing positions by Partners HealthCare System, Inc

Reductions

None of the existing positions were reduced by Partners HealthCare System, Inc

Sold off

None of the stocks were completely sold off by Partners HealthCare System, Inc

Sector Distribution

Sector%
Others96.2
Healthcare3.8

Market Cap. Distribution

Category%
UNALLOCATED96.2
MID-CAP3.4

Stocks belong to which Index?

Index%
Others96.2
RUSSELL 20003.8
Top 5 Winners (%)%
Top 5 Winners ($)$
Top 5 Losers (%)%
Top 5 Losers ($)$

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

Last Reported on: 27 Jan, 2026
TickerNamesorted ascending% PortfolioShares Held$ ValueType% ChangeOptions