Investment adviser · CRD 309528

GREAT MOUNTAIN PARTNERS

Investment adviser filing (IA)

GREAT MOUNTAIN PARTNERS LLC

NEW HAVEN, CT, United States · Form ADV filed Mar 27, 2026

Regulatory AUM
$14.1B
Form ADV · Item 5.F
Client accounts
11
Accounts, not individual clients
Employees
17
Reported in this filing
Advisory professionals
10
Investment advisory functions

Who they report serving

Form ADV · Item 5.D

Client types and their share of reported regulatory assets.

Client typeClientsRegulatory assetsShare of AUM
Pooled investment vehicles11$14,107,025,927100.0%
Filing source

Form ADV 2075748 · Mar 27, 2026 · Item 5.D

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

Private funds & service providers

11 Private funds

The count excludes feeder funds. Funds in the latest filing appear first, ordered by reported gross assets. Earlier funds retain their last reported values.

AXTON HOLDINGS, LLCPrivate Equity Fund · Last reported Mar 27, 2026$4.51BGross asset value
Fund administrator STATE STREET CORPORATION BOSTON, Massachusetts, United States Investor statements: Yes (provided to all investors) Related to adviser: No
Auditor GRANT THORNTON LLP NEW YORK, New York, United States
Custodian STATE STREET CORPORATION BOSTON, Massachusetts, United States Related to adviser: No
Provider details
Annual audit
Yes
Prime brokers
No
Custodians
Yes
Administrator other than the adviser
Yes
External marketing
No

GRANT THORNTON LLP
PCAOB 248

STATE STREET CORPORATION
LEI 549300ZFEEJ2IP5VME73

Fund details & source
Fund ID
805-8249144894
Reported beneficial owners
8
Minimum commitment
$500K

Form ADV 2075748 · Mar 27, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

SAMSARA PORTFOLIO LLCPrivate Equity Fund · Last reported Mar 27, 2026$2.93BGross asset value

Feeder funds

  • GREEN RANGE HOLDINGS LLC
Fund administrator STATE STREET CORPORATION BOSTON, Massachusetts, United States Investor statements: Yes (provided to all investors) Related to adviser: No
Auditor GRANT THORTON LLP NEW YORK, New York, United States
Custodian DIME COMMUNITY BANK NEW YORK, New York, United States Related to adviser: No
Custodian STATE STREET CORPORATION BOSTON, Massachusetts, United States Related to adviser: No
Provider details
Annual audit
Yes
Prime brokers
No
Custodians
Yes
Administrator other than the adviser
Yes
External marketing
No

GRANT THORTON LLP
PCAOB 248

DIME COMMUNITY BANK
LEI 549300UWA74T8PF7KY34

STATE STREET CORPORATION
LEI 549300ZFEEJ2IP5VME73

Fund details & source
Fund ID
805-7334523215
Reported beneficial owners
2
Minimum commitment
$500K

Form ADV 2075748 · Mar 27, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

MOKSHA PORTFOLIO, LLCPrivate Equity Fund · Last reported Mar 27, 2026$2.51BGross asset value

Feeder funds

  • GREEN RANGE HOLDINGS LLC
Fund administrator STATE STREET CORPORATION BOSTON, Massachusetts, United States Investor statements: Yes (provided to all investors) Related to adviser: No
Auditor GRANT THORNTON LLP NEW YORK, New York, United States
Custodian DIME COMMUNITY BANK NEW YORK, New York, United States Related to adviser: No
Custodian STATE STREET CORPORATION BOSTON, Massachusetts, United States Related to adviser: No
Provider details
Annual audit
Yes
Prime brokers
No
Custodians
Yes
Administrator other than the adviser
Yes
External marketing
No

GRANT THORNTON LLP
PCAOB 248

DIME COMMUNITY BANK
LEI 549300UWA74T8PF7KY34

STATE STREET CORPORATION
LEI 549300ZFEEJ2IP5VME73

Fund details & source
Fund ID
805-9948270480
Reported beneficial owners
2
Minimum commitment
$500K

Form ADV 2075748 · Mar 27, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

BLUE RANGE FUNDS LLCPrivate Equity Fund · Last reported Mar 27, 2026$1.49BGross asset value

Feeder funds

  • BLUE RANGE HOLDINGS LLC
Fund administrator STATE STREET CORPORATION BOSTON, Massachusetts, United States Investor statements: Yes (provided to all investors) Related to adviser: No
Auditor GRANT THORNTON LLP NEW YORK, New York, United States
Custodian EAST WEST BANK PASADENA, California, United States Related to adviser: No
Custodian STATE STREET CORPORATION BOSTON, Massachusetts, United States Related to adviser: No
Provider details
Annual audit
Yes
Prime brokers
No
Custodians
Yes
Administrator other than the adviser
Yes
External marketing
No

GRANT THORNTON LLP
PCAOB 248

EAST WEST BANK
LEI F28JOQ8OBWCFUYM0UX93

STATE STREET CORPORATION
LEI 549300ZFEEJ2IP5VME73

Fund details & source
Fund ID
805-2940980493
Reported beneficial owners
2
Minimum commitment
$500K

Form ADV 2075748 · Mar 27, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

CASTLE CREDIT SMRS HOLDINGS, LLCPrivate Equity Fund · Last reported Mar 27, 2026$937MGross asset value
Fund administrator STATE STREET CORPORATION BOSTON, Massachusetts, United States Investor statements: Yes (provided to all investors) Related to adviser: No
Auditor GRANT THORNTON LLP NEW YORK, New York, United States
Custodian STATE STREET CORPORATION BOSTON, Massachusetts, United States Related to adviser: No
Provider details
Annual audit
Yes
Prime brokers
No
Custodians
Yes
Administrator other than the adviser
Yes
External marketing
No

GRANT THORNTON LLP
PCAOB 248

STATE STREET CORPORATION
LEI 549300ZFEEJ2IP5VME73

Fund details & source
Fund ID
805-9650260844
Reported beneficial owners
7
Minimum commitment
$200K

Form ADV 2075748 · Mar 27, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

BLUE PEAK HOLDINGS, LLCPrivate Equity Fund · Last reported Mar 27, 2026$738MGross asset value

Feeder funds

  • BLUE RANGE HOLDINGS LLC
Fund administrator STATE STREET CORPORATION BOSTON, Massachusetts, United States Investor statements: Yes (provided to all investors) Related to adviser: No
Auditor GRANT THORTON LLP NEW YORK, New York, United States
Custodian STATE STREET CORPORATION BOSTON, Massachusetts, United States Related to adviser: No
Provider details
Annual audit
Yes
Prime brokers
No
Custodians
Yes
Administrator other than the adviser
Yes
External marketing
No

GRANT THORTON LLP
PCAOB 248

STATE STREET CORPORATION
LEI 549300ZFEEJ2IP5VME73

Fund details & source
Fund ID
805-7404167649
Reported beneficial owners
2
Minimum commitment
$500K

Form ADV 2075748 · Mar 27, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

SARANAC HOLDINGS, L.P.Private Equity Fund · Last reported Mar 27, 2026$603MGross asset value

Form D fundraising filings

Saranac Holdings, L.P.

Fund administrator DYNAMO SOFTWARE COMPANY WATERTOWN, Massachusetts, United States Investor statements: Yes (provided to all investors) Related to adviser: No
Auditor GRANT THORTON LLP NEW YORK, New York, United States
Custodian DIME COMMUNITY BANK NEW YORK, New York, United States Related to adviser: No
Custodian STATE STREET CORPORATION BOSTON, Massachusetts, United States Related to adviser: No
Provider details
Annual audit
Yes
Prime brokers
No
Custodians
Yes
Administrator other than the adviser
Yes
External marketing
No

GRANT THORTON LLP
PCAOB 248

DIME COMMUNITY BANK
LEI 549300UWA74T8PF7KY34

STATE STREET CORPORATION
LEI 549300ZFEEJ2IP5VME73

Fund details & source
Fund ID
805-9742278666
Reported beneficial owners
2
Minimum commitment
$3M
Form D file number
021-565922

Form ADV 2075748 · Mar 27, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

Services & filing details

Most recent filing: Mar 27, 2026. View historical filings

Reported services

Pooled investment vehicle management

Compensation

Percentage of assets · Performance-based

Principal office

157 CHURCH STREET, 20TH FLOOR
NEW HAVEN, CT, 06510, United States

CRD 309528

Filing source

Form ADV 2075748 · Mar 27, 2026 · Items 1 & 5

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.