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Healthcare / Hospital System IRS Form 990 Sched D Roadshow Hub: Massachusetts / New England HQ: Boston, MA

Mass General Brigham Investment Office

$16.4B Total AUM · Institutional LP profile covering 27 historical fund disclosure records ($2.37B parsed USD across disclosed rows) across disclosed strategy exposure in Buyout, Infrastructure, Venture Capital, Growth Equity, Private Equity (investment geography mandates are evaluated separately from LP headquarters). 5 complete primary source trails are open below without registration.

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Disclosed Records
27
5 Open Source Trails Below
Sum of Disclosed Rows
$2.37B
Total AUM: $16.4B
Median Disclosed Amount
$91.2M
Range: $45.0M – $144.8M
Disclosed Fund Multiples
13.3% Mean IRR (n=20) · 1.62x Mean TVPI (n=20)
Unweighted mean of disclosed funds (not portfolio return · As-of 2025)

Historical Fund Disclosures — Mass General Brigham Investment Office

5 Open Source Trails (No Registration)

Showing 5 open preview records out of 27 total tracked records (+22 gated pilot rows). Click Inspect Source on any row to view field-level substantiation, table headers/units, and archived page excerpts without login.

Disclosed Fund / Vehicle Strategy Fund Vintage Disclosed Amount Disclosed Performance Primary Source Trail
Hull Street Energy Partners II LP Infrastructure 2024
$144.8M
Historical commitment · As of December 2025
 Not Yet Page-Verified · Multiples Not Disclosed Inspect Source · IRS Form 990 Sched D
Oakley Capital VI Buyout 2024
$136.0M
Historical commitment · As of December 2025
 Not Yet Page-Verified · Multiples Not Disclosed Inspect Source · IRS Form 990 Sched D
Accel-KKR Growth Capital III Growth Equity 2024
$119.7M
Historical commitment · As of December 2025
 Not Yet Page-Verified · Multiples Not Disclosed Inspect Source · IRS Form 990 Sched D
RC CC Fund LP Private Equity 2024
$107.1M
Historical commitment · As of December 2025
 Not Yet Page-Verified · Multiples Not Disclosed Inspect Source · IRS Form 990 Sched D
Baring Asia VIII Buyout 2023
$95.0M
Historical commitment · As of December 2025
 Not Yet Page-Verified · Multiples Not Disclosed Inspect Source · IRS Form 990 Sched D

Forward-Looking Searches, Pacing Plans & Governance Updates — Mass General Brigham Investment Office

Tracked separately from historical commitments: active RFPs/searches, board pacing plans, leadership/CIO updates, and retained gatekeeper consultants.

Allocation-Policy / Pacing Update

Mass General Brigham Investment Office (Healthcare / Hospital System, $16.4B AUM): Disclosed FY2025-2026 Private Markets Pacing & Allocation Update (PE Target 24.0% vs. 24.0% Actual; $100.0M Unallocated Target Bandwidth). IRS Form 990 Schedule D Verified (EIN 042697983, $16.40B long-term investment & endowment pool): Active commitments across healthcare buyout, biotech/medtech venture, mid-market PE, and private credit. Gatekeeper / Intake Conduit: Cambridge Associates.

Forward-looking board pacing or target-allocation policy update · Recorded 2025-02-04

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Pacing & Allocation Policy Pilot Gated

Board-Approved Pacing Plans, Active RFPs & Target-vs-Actual Allocation Gap

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Gatekeeper Consultants (1) Pilot Gated

Retained Private Markets Advisors & Emerging-Manager Search Conduits

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Investment Team Contacts (4) Pilot Gated

CIO, Private Markets Officers & Official Pitch Intake Guidance

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Shared-Fund Co-Investor Overlap & Potential Introduction Paths — Mass General Brigham Investment Office

757 Shared-Fund Co-LPs

Institutions disclosing the same resolved underlying fund vehicles as Mass General Brigham Investment Office (26 shared vehicles tracked; showing top 3 bilateral overlaps).

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1. Shared Fund Exposure: Documented for both LPs
2. LPAC Seat Overlap: Not disclosed in filings
3. Personal Relationship: Unknown (customer-supplied)
4. Intro Willingness: Unconfirmed potential path
#1 Shared-Fund Peer 14 Shared Vehicles

Cedar Rapids Estero Bay Whitmore Regional Health System Master Investment Pool

Healthcare / Hospital System Heartland / Plains (MO / IA / OK / KS / NE)
Resolved Shared Vehicle Recent Fund Cycle (2020–2026)
Baring Asia VIII (2024 Vintage)
Mass General Brigham Investment Office: $95.0M · IRS Form 990 Sched D
Cedar Rapids Estero Bay Whitmore Regional Health System Master Investment Pool: $21.8M · IRS Form 990 Sched D

Additional shared vehicles: Basalt Infrastructure Partners IV (2023 Vintage) · Banner Ridge Secondary V (2023 Vintage)

Potential introduction path · LPAC unconfirmed View LP Profile →
#2 Shared-Fund Peer 12 Shared Vehicles

Wasatch Advisors

OCIO / Wealth RIA Salt Lake City, UT
Resolved Shared Vehicle Recent Fund Cycle (2020–2026)
Basalt Infrastructure Partners IV (2023 Vintage)
Mass General Brigham Investment Office: $91.2M · IRS Form 990 Sched D
Wasatch Advisors: $58.5M · SEC Form ADV 7.B

Additional shared vehicles: Baring Asia VIII (2024 Vintage) · Banner Ridge Secondary V (2023 Vintage)

Potential introduction path · LPAC unconfirmed View LP Profile →
#3 Shared-Fund Peer 10 Shared Vehicles

Commonwealth Financial Network

OCIO / Wealth RIA Waltham, MA
Resolved Shared Vehicle Recent Fund Cycle (2020–2026)
Banner Ridge Secondary V (2023 Vintage)
Mass General Brigham Investment Office: $87.0M · IRS Form 990 Sched D
Commonwealth Financial Network: $61.2M · SEC Form ADV 7.B

Additional shared vehicles: Baring Asia VIII (2024 Vintage) · Basalt Infrastructure Partners IV (2023 Vintage)

Potential introduction path · LPAC unconfirmed View LP Profile →

+754 Additional Institutional LPs Report Shared Vehicles with Mass General Brigham Investment Office

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Pre-Launch Pilot Mode · Early-Access Waitlist

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You are viewing 5 open public preview records (out of 27 total tracked records for Mass General Brigham Investment Office) with zero-registration primary source trails. Join the early-access waitlist to request pilot access:

  • All 27 tracked historical disclosure records (+22 gated rows) & field-level provenance
  • Bilateral Shared-Fund Co-Investor Graph (757 connected LPs)
  • Separated active searches, RFPs, approved FY2026 pacing plans & CIO governance updates
  • Retained gatekeeper consultants (1), investment contacts (4) & CRM export

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Strategies Disclosed by Mass General Brigham Investment Office

Buyout LPs →Infrastructure LPs →Venture Capital LPs →Growth Equity LPs →Private Equity LPs →

Frequently Asked Questions: Mass General Brigham Investment Office

What type of institutional allocator is Mass General Brigham Investment Office and what is their typical disclosed ticket size?

Mass General Brigham Investment Office is categorized under Healthcare / Hospital System (Regional Roadshow Hub: Massachusetts / New England; Headquarters: Boston, MA). Across 27 historical disclosure records tracked on Prilago ($2.37B total parsed USD across disclosed rows), the median disclosed amount is $91.2M (range: $45.0M to $144.8M).

Which private-market strategies appear in Mass General Brigham Investment Office's public disclosures?

Mass General Brigham Investment Office has disclosed records across Buyout, Infrastructure, Venture Capital, Growth Equity, Private Equity. Open preview records include Hull Street Energy Partners II LP (2024 Vintage), Oakley Capital VI (2024 Vintage), Accel-KKR Growth Capital III (2024 Vintage), RC CC Fund LP (2024 Vintage).

How are Mass General Brigham Investment Office's historical records substantiated and separated from active searches on Prilago?

Records for Mass General Brigham Investment Office cite primary public disclosures (IRS Form 990 Sched D), and visitors can inspect 5 open source trails on this profile without registration. Each source trail displays field-level substantiation status, distinguishing exact commitment schedules from carrying-value or fee tables. Forward-looking active searches, RFPs, pacing plans, and governance updates are separated from historical disclosures.

How can General Partners request pilot access to Mass General Brigham Investment Office's full commitment history and contacts?

General Partners can join the early-access waitlist on https://prilago.com/lp/mass-general-brigham-investment-office or test fund suitability in the interactive read-only demo at https://prilago.com/demo.

Which institutional LPs report shared underlying fund vehicles alongside Mass General Brigham Investment Office?

In Prilago's bilateral commitment graph, Mass General Brigham Investment Office shares resolved underlying fund vehicles with 757 institutional LPs across 26 shared vehicles (shared fund exposure represents a potential introduction path and does not prove LPAC seat overlap or personal acquaintance). Top shared-fund peers include Cedar Rapids Estero Bay Whitmore Regional Health System Master Investment Pool (14 shared vehicles, e.g. Baring Asia VIII (2024 Vintage)), Wasatch Advisors (12 shared vehicles, e.g. Basalt Infrastructure Partners IV (2023 Vintage)), Commonwealth Financial Network (10 shared vehicles, e.g. Banner Ridge Secondary V (2023 Vintage)).

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