Mass General Brigham, Inc
CIK 0001678378 · SOMERVILLE, MA · Quarter end: 2026-06-30 · Filed on: 2026-08-07 · Open the SEC source ↗
Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.
$361.1M
2026 Q2
Positions
6
Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.
100.0%
Est. Net Flow (Q)
—
2026 Q2
Top Holdings
ACWI
ISHARES TR
54.8%
KRMN
KARMAN HLDGS INC
21.6%
RVMD
REVOLUTION MEDICINES INC
17.8%
TNGX
TANGO THERAPEUTICS INC
3.1%
MAZE
MAZE THERAPEUTICS INC
2.0%
MDLN
MEDLINE INC
0.7%
New / Increased
No prior quarter data
Reduced / Exited
No prior quarter data
Read the 2026-Q2 quarterly report · 13F Filing Calendar
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.