Investment adviser · CRD 124744
MARINER INVESTMENT GROUP, LLC
NEW YORK, NY, United States · Form ADV filed Aug 28, 2026
- Regulatory AUM
- $176B Form ADV · Item 5.F
- Client accounts
- 39 Accounts, not individual clients
- Employees
- 176 Reported in this filing
- Advisory professionals
- 89 Investment advisory functions
How this adviser has changed
Annual filingsRegulatory assets under management
Up to five fiscal years, using the latest annual update available at the selected filing date. Asset changes can reflect acquisitions, client flows, and valuations; they are not investment returns.
| Fiscal year | Regulatory AUM | Employees | Filed |
|---|---|---|---|
| 2021 | $201,250,850,921 | 111 | Mar 31, 2022 |
| 2022 | $180,493,766,178 | 117 | Mar 29, 2023 |
| 2023 | $126,022,034,338 | 126 | Mar 28, 2024 |
| 2024 | $119,844,000,000 | 134 | Feb 28, 2025 |
| 2025 | $149,623,092,189 | 146 | Mar 31, 2026 |
Who they report serving
Form ADV · Item 5.DClient types and their share of reported regulatory assets.
| Client type | Clients | Regulatory assets | Share of AUM |
|---|---|---|---|
| Pooled investment vehicles | 34 | $127,217,602,356 | 72.2% |
| Sovereign wealth & foreign institutions | Fewer than 5 | $41,912,084,560 | 23.8% |
| Investment companies | 2 | $4,396,190,611 | 2.5% |
| Retirement plans | Fewer than 5 | $2,782,251,124 | 1.6% |
Filing source
Form ADV 2129592 · Aug 28, 2026 · Item 5.D
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Other-Than Anual Amendment For Registered Adviser.
Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.
Private funds & service providers
17 detailed fund recordsLargest reported gross asset value first; unreported values last. Gross asset value is fund-level disclosure, distinct from adviser AUM and Form D fundraising. Master and feeder funds may overlap.
BRIGHT MEADOW MORTGAGE STRATEGIES MASTER FUND, L.P.Hedge Fund · Master$1.9BGross asset value
Form D fundraising filings
View filings for the issuers linked by this fund’s reported Form D file numbers.
Provider details
- Annual audit
- Yes
- Prime brokers
- Yes
- Custodians
- Yes
- Administrator other than the adviser
- Yes
- External marketing
- Yes
KPMG LLP
PCAOB 185
J.P. MORGAN SECURITIES LLC
SEC 8-35008
PROFOR ADVISORS
CRD 136084 · SEC 8-66974
VIGILANT DISTRIBUTORS, LLC
CRD 285573 · SEC 8-69854
J.P. MORGAN SECURITIES LLC
CRD 79 · SEC 8-35008
Fund details & source
- Fund ID
- 805-2244533172
- Reported beneficial owners
- 4
- Minimum commitment
- $5M
- Form D file number
- 021-135186
- Form D file number
- 021-177991
Form ADV 2129592 · Aug 28, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Other-Than Anual Amendment For Registered Adviser.
Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.
BRIGHT MEADOW AGENCY MARKETS MASTER FUND, LPHedge Fund · Master$767MGross asset value
Form D fundraising filings
View filings for the issuers linked by this fund’s reported Form D file numbers.
Provider details
- Annual audit
- Yes
- Prime brokers
- Yes
- Custodians
- Yes
- Administrator other than the adviser
- Yes
- External marketing
- Yes
KPMG LLP
PCAOB 185
J.P. MORGAN SECURITIES LLC
SEC 8-35008
VIGILANT DISTRIBUTORS, LLC
CRD 285573 · SEC 8-69854
J.P. MORGAN SECURITIES LLC
CRD 79 · SEC 8-35008
Fund details & source
- Fund ID
- 805-5277137882
- Reported beneficial owners
- 2
- Minimum commitment
- $1M
- Form D file number
- 021-512327
- Form D file number
- 021-495784
Form ADV 2129592 · Aug 28, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Other-Than Anual Amendment For Registered Adviser.
Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.
MARINER PECONIC BAY FUND, LLCHedge Fund$343MGross asset value
Form D fundraising filings
View filings for the issuer linked by this fund’s reported Form D file numbers.
Provider details
- Annual audit
- Yes
- Prime brokers
- Yes
- Custodians
- Yes
- Administrator other than the adviser
- Yes
- External marketing
- Yes
KPMG LLP
PCAOB 185
J.P. MORGAN SECURITIES LLC
SEC 8-35008
VIGILANT DISTRIBUTORS, LLC
CRD 285573 · SEC 8-69854
J.P. MORGAN SECURITIES LLC
CRD 79 · SEC 8-35008
Fund details & source
- Fund ID
- 805-9493812420
- Reported beneficial owners
- 80
- Minimum commitment
- $5M
- Form D file number
- 021-527683
Form ADV 2129592 · Aug 28, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Other-Than Anual Amendment For Registered Adviser.
Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.
MARINER GARDINERS BAY FUND LLCHedge Fund$213MGross asset value
Form D fundraising filings
View filings for the issuer linked by this fund’s reported Form D file numbers.
Provider details
- Annual audit
- Yes
- Prime brokers
- Yes
- Custodians
- Yes
- Administrator other than the adviser
- Yes
- External marketing
- Yes
KPMG LLP
PCAOB 185
J.P. MORGAN SECURITIES LLC
SEC 8-35008
VIGILANT DISTRIBUTORS, LLC
CRD 285573 · SEC 8-69854
J.P. MORGAN SECURITIES LLC
CRD 79 · SEC 8-35008
Fund details & source
- Fund ID
- 805-1701949384
- Reported beneficial owners
- 12
- Minimum commitment
- $5M
- Form D file number
- 021-585433
Form ADV 2129592 · Aug 28, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Other-Than Anual Amendment For Registered Adviser.
Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.
MARINER CICERO CMBS OPPORTUNITIES MASTER FUND, LPHedge Fund · Master$92.6MGross asset value
Form D fundraising filings
View filings for the issuers linked by this fund’s reported Form D file numbers.
See filing for more → Showing the first 6 providers by role and name. IAPD may show a newer filing.
Provider details
- Annual audit
- Yes
- Prime brokers
- Yes
- Custodians
- Yes
- Administrator other than the adviser
- Yes
- External marketing
- Yes
RSM US LLP
PCAOB 49
J.P. MORGAN SECURITIES LLC
SEC 8-35008
U.S. BANK NATIONAL ASSOCIATION
LEI 6BYL5QZYBDK8S7L73M02
PROFOR ADVISORS
CRD 136084 · SEC 8-66974
VIGILANT DISTRIBUTORS, LLC
CRD 285573 · SEC 8-69854
Fund details & source
- Fund ID
- 805-3765743878
- Reported beneficial owners
- 27
- Minimum commitment
- $1M
- Form D file number
- 021-522020
- Form D file number
- 021-382691
Form ADV 2129592 · Aug 28, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Other-Than Anual Amendment For Registered Adviser.
Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.
CONCORDIA MUNICIPAL OPPORTUNITIES MASTER FUND LPHedge Fund$65.8MGross asset value
See filing for more → Showing the first 6 providers by role and name. IAPD may show a newer filing.
Provider details
- Annual audit
- Yes
- Prime brokers
- Yes
- Custodians
- Yes
- Administrator other than the adviser
- Yes
- External marketing
- Yes
GRANT THORNTON LLP
PCAOB 248
J.P. MORGAN SECURITIES LLC
SEC 8-35008
PERSHING LLC
SEC 8-17574
STIFEL, NICOLAUS & COMPANY, INCORPORATED
CRD 793 · SEC 801-10746
Fund details & source
- Fund ID
- 805-2803297410
- Reported beneficial owners
- 50
- Minimum commitment
- $250K
- Form D file number
- 021-930000
Form ADV 2129592 · Aug 28, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Other-Than Anual Amendment For Registered Adviser.
Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.
MARINER NOYACK BAY, LLCHedge Fund$33.3MGross asset value
Provider details
- Annual audit
- Yes
- Prime brokers
- Yes
- Custodians
- Yes
- Administrator other than the adviser
- Yes
- External marketing
- No
KPMG LLP
PCAOB 185
J.P. MORGAN SECURITIES LLC
SEC 8-35008
J.P. MORGAN SECURITIES LLC
CRD 79 · SEC 8-35008
Fund details & source
- Fund ID
- 805-5539792880
- Reported beneficial owners
- 3
- Minimum commitment
- $100K
Form ADV 2129592 · Aug 28, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Other-Than Anual Amendment For Registered Adviser.
Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.
Services & filing details
Showing values from the selected filing. Latest observed filing does not establish current registration status.
What changed?
Since Aug 28, 2026 · previous imported filing
No comparable changes in the displayed metrics.
Filing source
Form ADV 2129592 · Aug 28, 2026 · Items 1 & 5
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Other-Than Anual Amendment For Registered Adviser.
Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.
Management of assets
- Discretionary
- $176B
- Non-discretionary
- $0
Reported services
Investment company portfolio management · Pooled investment vehicle management · Business portfolio management
Compensation
Percentage of assets · Performance-based
Principal office
299 PARK AVENUE, 5TH FLOORNEW YORK, NY, 10171, United States
CRD 124744
Filing source
Form ADV 2129592 · Aug 28, 2026 · Items 1 & 5
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Other-Than Anual Amendment For Registered Adviser.
Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.