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GREAT MOUNTAIN PARTNERS
Legal name: GREAT MOUNTAIN PARTNERS LLC
CRD 309528File 801-119799
APPROVED
Custody
Filing as of Mar 27, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$14.11B
Top 10% of cohort (national)
Discretionary AUM
$14.11B
Clients
11
11 accounts
Employees
17
Top 10% of cohort in CT
Identity & registration
ADV Item 1- Organization form
- Limited Liability Company
- Firm type
- Registered
- SEC region
- BRO
- Registration date
- Nov 13, 2020
- Principal office
- 157 CHURCH STREET, 20TH FLOOR, NEW HAVEN, CT, 06510
- Phone
- 203.993.6149
- Website
- https://www.gmp.llc
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $14.11B
- Discretionary AUM
- $14.11B
- Non-discretionary AUM
- $0
- Discretionary accounts
- 11
- Non-discretionary accounts
- 0
- Total accounts
- 11
- AUM per client
- $1.28B
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Pooled investment vehicles | 11 | $14.11B |
Compensation & activities
ADV Items 5E, 5GCompensation
- Performance-based fees
- A percentage of assets under your management
Advisory activities
- Portfolio management for pooled investment vehicles
Custody
ADV Item 9- Firm Custody Cash
- No
- Firm Custody Assets
- Yes
- Firm Custody Clients
- Yes
- Firm Custody Securities
- No
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- Yes
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Apr 1, 2026 | Clients | 10 | 11 | increased by1 |
| Apr 1, 2026 | AUM | $11,315,145,744 | $14,107,025,927 | increased by$2,791,880,183 |
| Apr 1, 2026 | Accounts | 10 | 11 | increased by1 |
| May 1, 2025 vs Oct 1, 2022 | Employees | 7 | 17 | increased by10 |
| May 1, 2025 vs Oct 1, 2022 | Clients | 5 | 10 | increased by5 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $5,400,624,992 | $11,315,145,744 | increased by$5,914,520,752 |
| May 1, 2025 vs Oct 1, 2022 | Accounts | 5 | 10 | increased by5 |
| Apr 1, 2022 | Employees | 5 | 7 | increased by2 |
| Apr 1, 2022 | Clients | 4 | 5 | increased by1 |
| Apr 1, 2022 | AUM | $5,164,875,548 | $5,400,624,992 | increased by$235,749,444 |
| Apr 1, 2022 | Accounts | 4 | 5 | increased by1 |
| Apr 1, 2021 | Registration | — | APPROVED |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “GREAT MOUNTAIN” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“GREAT MOUNTAIN” may also match similarly-named firms). Confirm identity against each filing.
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.