Mass General Brigham, Inc

All Holdings — 2026 Q1

AI Portfolio Summary
In 2026 Q1, Mass General Brigham, Inc maintained a portfolio of 7 distinct positions. They heavily accumulated shares in MEDLINE INC, increasing their position by 167.6%. Conversely, Mass General Brigham, Inc completely exited their position in RUBRIK INC.
PCA Score Concentration Risk
Risk ENB
Total Positions
7
Quarter
2026 Q1
Top Holding
ACWI (62.4%)
Top 10 Concentration
100.0%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-7 of 7
Stock History Sector / Type Port % Prev % Rank / Prev Conviction Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
ACWI
ISHARES TR
ETF 62.42% 80.62% #1
Prev: #1
6.0 -2,460,478 -53.3%
P
S
2,153,477 $292,711,246 2016 Q2 13F Filing 2026-03-31 2026-05-05
KRMN
KARMAN HLDGS IN...
Industrials 26.67% 14.11% #2
Prev: #2
6.5 no change no change
P
S
1,562,054 $125,042,423 2025 Q4 13F Filing 2026-03-31 2026-05-05
RVMD
REVOLUTION MEDI...
Healthcare 7.14% 3.38% #3
Prev: #3
4.9 no change no change
P
S
344,091 $33,462,850 2022 Q4 13F Filing 2026-03-31 2026-05-05
TNGX
TANGO THERAPEUT...
Healthcare 1.58% 0.39% #4 1
Prev: #5
2.1 no change no change
P
S
354,192 $7,409,697 2024 Q1 13F Filing 2026-03-31 2026-05-05
MAZE
MAZE THERAPEUTI...
Healthcare 1.53% 1.23% #5 1
Prev: #4
2.1 no change no change
P
S
239,994 $7,163,821 2025 Q4 13F Filing 2026-03-31 2026-05-05
MDLN
MEDLINE INC
Healthcare 0.67% 0.14% #6
Prev: #6
3.3 44,063 167.6%
P
S
70,357 $3,130,887 2025 Q4 13F Filing 2026-03-31 2026-05-05
RBRK
RUBRIK INC
Technology 0.00% 0.13%
Sold All 😨
(Was: #7)
0.0 -14,000 -100.0%
CLOSED
$— 2025 Q4 13F Filing 2026-03-31 2026-05-05
Showing 1-7 of 7 holdings

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