Mass General Brigham, Inc 13F annual report

Mass General Brigham, Inc is an investment fund managing more than $20.5 billion ran by William Kane. There are currently 4 companies in Mr. Kane’s portfolio. The largest investments include Revolution Medicines Inc and Pliant Therapeutics, together worth $16.2 billion.

$20.5 billion Assets Under Management (AUM)

As of 24th July 2024, Mass General Brigham, Inc’s top holding is 338,191 shares of Revolution Medicines Inc currently worth over $13.1 billion and making up 63.9% of the portfolio value. Relative to the number of outstanding shares of Revolution Medicines Inc, Mass General Brigham, Inc owns more than approximately 0.1% of the company. In addition, the fund holds 288,690 shares of Pliant Therapeutics worth $3.1 billion, whose value fell 25.7% in the past six months. The third-largest holding is Tango Therapeutics Inc worth $3.04 billion and the next is Fulcrum Therapeutics Inc worth $1.27 billion, with 205,356 shares owned.

Currently, Mass General Brigham, Inc's portfolio is worth at least $20.5 billion. The total portfolio value may be much higher due to cash assets that are not publicly disclosed such as fixed income, real estate, or cash equivalents.

Careers at Mass General Brigham, Inc

The Mass General Brigham, Inc office and employees reside in Boston, Massachusetts. According to the last 13-F report filed with the SEC, William Kane serves as the Corporate Director at Mass General Brigham, Inc.

Recent trades



There are companies that Mass General Brigham, Inc is getting rid of from its portfolio. Mass General Brigham, Inc closed its position in Coinbase Global Inc Class A on 31st July 2024. It sold the previously owned 140,229 shares for $37.2 billion.

One of the smallest hedge funds

The two most similar investment funds to Mass General Brigham, Inc are Cross Creek Advisors and Curative Ventures V. They manage $20.5 billion and $20.5 billion respectively.


William Kane investment strategy

Mass General Brigham, Inc’s portfolio is diversified across 2 sectors. Currently, their heaviest sector is Health Care — making up 85.2% of the total portfolio value. The fund focuses on investments in the United States as 75.0% of the portfolio companies are based in the United States.

The majority of the companies in the fund’s portfolio are large-cap stocks. Stocks with a size of more than $10 billion in market cap make up approximately 0.1% of the total holdings value. On the other hand, small-cap stocks make up only approximately 0.1% of the portfolio. The average market cap of the portfolio companies is close to $996 million.

The complete list of Mass General Brigham, Inc trades based on 13F SEC filings

These positions were updated on July 31st based on the fund’s latest 13F filing. Quickly find out what the most recently closed or increased positions are.

Security Shares Owned Value Allocation
Coinbase Global Inc Class A
Closed
140,229
$37,177,512,000
Revolution Medicines Inc
No change
338,191
$13,125,193,000 63.90%
Pliant Therapeutics, Inc.
No change
288,690
$3,103,418,000 15.11%
Tango Therapeutics Inc
No change
354,192
$3,038,967,000 14.79%
Fulcrum Therapeutics Inc
No change
205,356
$1,273,207,000 6.20%
No transactions found
Showing first 500 out of 5 holdings