Filed: 1/27/2026ACC: 0001214659-26-000882
📋 What this filing means
MASS GENERAL BRIGHAM, INC filed this quarterly 13F‑HR report disclosing 7 equity positions with a total reported market value of $809.79M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
7
Positions
$809.79M
Total AUM (reported)
7.15M
Total Shares
Allocation by class
MSCI ACWI ETF$652.83M80.6%
COM$156.96M19.4%
Portfolio Concentration
Top 3$794.53M98.1%
4–10$15.26M1.9%
Top 3 weight
98.1%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 0.00
Sole
Full voting authority
0.00
shares
% of voting shares0.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole7
Shared0
Other0
Dominant voting typeNone · 0.0% of voting shares
Institutional Holdings7
Rows:
ISHARES TR
SOLEShares4.61M
TypeSH
Market value$652.83M
80.62%
Sole
0.00
Shared
0.00
None
0.00
KARMAN HLDGS INC
SOLEShares1.56M
TypeSH
Market value$114.30M
14.11%
Sole
0.00
Shared
0.00
None
0.00
REVOLUTION MEDICINES INC
SOLEShares344.09K
TypeSH
Market value$27.41M
3.38%
Sole
0.00
Shared
0.00
None
0.00
MAZE THERAPEUTICS INC
SOLEShares239.99K
TypeSH
Market value$9.94M
1.23%
Sole
0.00
Shared
0.00
None
0.00
TANGO THERAPEUTICS INC
SOLEShares354.19K
TypeSH
Market value$3.14M
0.39%
Sole
0.00
Shared
0.00
None
0.00
MEDLINE INC
SOLEShares26.29K
TypeSH
Market value$1.10M
0.14%
Sole
0.00
Shared
0.00
None
0.00
RUBRIK INC
SOLEShares14K
TypeSH
Market value$1.07M
0.13%
Sole
0.00
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
ISHARES TRSOLE | MSCI ACWI ETF | 4.61M | SH | $652.83M 80.62% | 0.00 | 0.00 | 0.00 |
KARMAN HLDGS INCSOLE | COM | 1.56M | SH | $114.30M 14.11% | 0.00 | 0.00 | 0.00 |
REVOLUTION MEDICINES INCSOLE | COM | 344.09K | SH | $27.41M 3.38% | 0.00 | 0.00 | 0.00 |
MAZE THERAPEUTICS INCSOLE | COM | 239.99K | SH | $9.94M 1.23% | 0.00 | 0.00 | 0.00 |
TANGO THERAPEUTICS INCSOLE | COM | 354.19K | SH | $3.14M 0.39% | 0.00 | 0.00 | 0.00 |
MEDLINE INCSOLE | COM | 26.29K | SH | $1.10M 0.14% | 0.00 | 0.00 | 0.00 |
RUBRIK INCSOLE | COM | 14K | SH | $1.07M 0.13% | 0.00 | 0.00 | 0.00 |