13F Insight
DOSSIER · 13F-HR · Q1 2026

Mass General Brigham, Inc

$469M in tracked AUM across 6 positions as of Q1 2026.

MG
CIK 0001678378 · last filed Mar 31, 2026
Total AUM
$469M
as of Q1 2026
Holdings
6
—
positions
Whale Score
66
66
tracked
Activity
—
no data
changes this Q
AI Analysis · Q1 2026

Mass General Brigham, Inc filed its latest 13F-HR for Q1 2026. See the latest holdings and position changes below.

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
ACWI
ISHARES TR
$293M2.2M62.4%02
KRMN
KARMAN HLDGS INC
$125M1.6M26.7%03
RVMD
REVOLUTION MEDICINES INC
$33M344K7.1%04
TNGX
TANGO THERAPEUTICS INC
$7M354K1.6%05
MAZE
MAZE THERAPEUTICS INC
$7M240K1.5%06
MDLN
MEDLINE INC
$3M70K0.7%

Filing history

2026Q1Mar 31
$469M▼ 42.1%
6 positionsView →2025Q4Dec 31
$810M▲ 1756.1%
7 positionsView →2024Q3Sep 30
$44M▲ 112.4%
5 positionsLocked2024Q2Jun 30
$21M▼ 64.0%
4 positionsLocked2024Q1Mar 31
$57M▲ 103.9%
5 positionsLocked2023Q4Dec 31
$28M▲ 160.0%
2 positionsLocked2023Q3Sep 30
$11M▼ 90.2%
2 positionsLocked2023Q2Jun 30
$110M▼ 14.3%
7 positionsLocked2023Q1Mar 31
$128M▲ 91254.4%
6 positionsLocked2022Q4Dec 31
$140K▼ 27.0%
5 positionsLocked2022Q3Sep 30
$192K▼ 10.1%
3 positionsLocked2022Q2Jun 30
$214K▼ 9.1%
3 positionsLocked
Showing 12 of 31