Managers / Q4 2022 · view latest →
Mass General Brigham, Inc
CIK 0001678378 · 399 REVOLUTION DRIVE, SUITE 612, SOMERVILLE, MA, 02145 · 8572777268
Reported Value
Under review
reported total failed a data-quality check
Positions
5
Filings on Record
24
2019–present window
Filed
Jan 19, 2023
original filing
Summary
Compared with Q3 2022, the fund opened 2 new positions and exited 0.
Reported Value by Quarter
13F Reported Value
Portfolio Composition
By security type
- ETP · 96.0% · $134,820
- Common Stock · 4.0% · $5,633
Quarter-over-Quarter Changes full breakdown →
vs Q3 2022 (amended baseline)
| Issuer | Move | Share Δ | Shares now | Value Δ | Value now |
|---|---|---|---|---|---|
| WTTRSELECT ENERGY SVCS INC | NEW | +60.7K | 60.7K | +$561 | $561 |
| RVMDREVOLUTION MEDICINES INC | NEW | +21.4K | 21.4K | +$510 | $510 |
| ISHARES CORE U.S. AGGREGATE ETF | TRIMMED | −240.3K | 553.1K | −$76M | $53,645 |
| ISHARES CORE SP 500 ETF | TRIMMED | −88.6K | 211.3K | −$107M | $81,175 |
| COINCOINBASE GLOBAL INC CLASS A | HELD | +0 | 128.9K | −$8M | $4,562 |
Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.
Holdings — Q4 2022
5 positions
| # | Issuer | Class | % Portfolio | Value ↓ | Shares |
|---|---|---|---|---|---|
| 1 | ISHARES CORE SP 500 ETF | ETF | 57.80% | $81,175 | 211.3K |
| 2 | ISHARES CORE U.S. AGGREGATE ETF | ETF | 38.19% | $53,645 | 553.1K |
| 3 | COINCOINBASE GLOBAL INC CLASS Ahistory → | CL A | 3.25% | $4,562 | 128.9K |
| 4 | WTTRSELECT ENERGY SVCS INC | CL A | 0.40% | $561 | 60.7K |
| 5 | RVMDREVOLUTION MEDICINES INC | COM | 0.36% | $510 | 21.4K |
Filing History
| Quarter | Reported Value | Positions | Filed | Type | Links |
|---|---|---|---|---|---|
| Q1 2026 | $469M | 6 | May 5, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q4 2025 | $810M | 7 | Jan 27, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q3 2024 | $44M | 5 | Oct 16, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q2 2024 | $21M | 4 | Jul 31, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q1 2024 | $57M | 5 | Apr 4, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q4 2023 | $28M | 2 | Jan 24, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q3 2023 | $11M | 2 | Oct 23, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q2 2023 | Under review | 7 | Jul 21, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q1 2023 | $128,310 | 6 | Apr 5, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q4 2022 | Under review | 5 | Jan 19, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q3 2022 | $192M | 3 | Oct 19, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q2 2022 | $214M | 3 | Jul 27, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q1 2022 | $235M | 5 | Apr 15, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q4 2021 | $282M | 7 | Jan 19, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q3 2021 | $371M | 7 | Oct 8, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q2 2021 | $410M | 9 | Jul 19, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q1 2021 | $639M | 3 | Apr 12, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q4 2020 | $473M | 3 | Feb 8, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q3 2020 | $126M | 2 | Oct 23, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q4 2019 | $290M | 3 | Jan 15, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q3 2019 | $436M | 3 | Oct 30, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q2 2019 | $153M | 1 | Jul 29, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q1 2019 | $162M | 1 | Apr 18, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q4 2018 | $144M | 1 | Jan 30, 2019 | 13F-HR | changes · EDGAR ↗ |
13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.