Investment adviser · CRD 124744
MARINER INVESTMENT GROUP, LLC
NEW YORK, NY, United States · Form ADV filed Mar 31, 2026
- Regulatory AUM
- $150B Form ADV · Item 5.F
- Client accounts
- 37 Accounts, not individual clients
- Employees
- 146 Reported in this filing
- Advisory professionals
- 91 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 | $125,882,834,660 | 84.1% |
| Sovereign wealth & foreign institutions | Fewer than 5 | $18,516,716,968 | 12.4% |
| Investment companies | 2 | $3,162,893,963 | 2.1% |
| Retirement plans | Fewer than 5 | $2,060,646,598 | 1.4% |
Filing source
Form ADV 2068524 · Mar 31, 2026 · Item 5.D
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Annual Updating Amendment for Registered Adviser · fiscal year 2025.
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.
THE BANK OF NEW YORK MELLON
Custodian · funds reporting this exact name in the selected filing
These are reported-name connections within this adviser's filing, not a verified global provider identity or market-wide client count.
Private funds & service providers
15 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.
CONCORDIA G-10 FIXED INCOME RELATIVE VALUE FUND LPHedge Fund · Master$65.2BGross 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
KPMG LLP
PCAOB 185
BARCLAYS CAPITAL INC.
SEC 8-41342
BNP PARIBAS SECURITIES CORP.
SEC 8-32682
BOFA SECURITIES, INC.
SEC 8-69787
CITIGROUP GLOBAL MARKETS INC.
SEC 8-8177
Fund details & source
- Fund ID
- 805-5936999570
- Reported beneficial owners
- 65
- Minimum commitment
- $1M
- Form D file number
- 021-215495
- Form D file number
- 021-173173
Form ADV 2068524 · Mar 31, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Annual Updating Amendment for Registered Adviser · fiscal year 2025.
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 ATLANTIC MULTI-STRATEGY MASTER FUND, LTD.Hedge Fund · Master$34.4BGross 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
KPMG LLP
PCAOB 185
BNP PARIBAS SECURITIES CORP.
SEC 8-32682
BNY MELLON CAPITAL MARKETS, LLC
SEC 8-35255
J.P. MORGAN SECURITIES LLC
SEC 8-35008
SG AMERICAS SECURITIES, LLC
SEC 8-66125
Fund details & source
- Fund ID
- 805-4991304990
- Reported beneficial owners
- 589
- Minimum commitment
- $5M
- Form D file number
- 021-126777
- Form D file number
- 021-127002
- Form D file number
- 021-121432
Form ADV 2068524 · Mar 31, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Annual Updating Amendment for Registered Adviser · fiscal year 2025.
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 INSTITUTIONAL MULTI-STRATEGY LTDHedge Fund$8.61BGross 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
- No
KPMG LLP
PCAOB 185
BARCLAYS CAPITAL INC.
SEC 8-41342
BNP PARIBAS SECURITIES CORP.
SEC 8-32682
BOFA SECURITIES, INC.
SEC 8-69787
CITIGROUP GLOBAL MARKETS INC.
SEC 8-8177
Fund details & source
- Fund ID
- 805-6049676519
- Reported beneficial owners
- 3
- Minimum commitment
- $1M
Form ADV 2068524 · Mar 31, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Annual Updating Amendment for Registered Adviser · fiscal year 2025.
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 MBS MASTER FUND, LPHedge Fund · Master$8.44BGross 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
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
Fund details & source
- Fund ID
- 805-6409951832
- Reported beneficial owners
- 82
- Minimum commitment
- $1M
- Form D file number
- 021-306502
- Form D file number
- 021-355322
Form ADV 2068524 · Mar 31, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Annual Updating Amendment for Registered Adviser · fiscal year 2025.
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 SECURITIES STRATEGIES FUND, LLCHedge Fund$2.24BGross 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
- 805-5022746048
- Reported beneficial owners
- 2
- Minimum commitment
- $1M
Form ADV 2068524 · Mar 31, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Annual Updating Amendment for Registered Adviser · fiscal year 2025.
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 MORTGAGE STRATEGIES MASTER FUND, L.P.Hedge Fund · Master$1.84BGross 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 2068524 · Mar 31, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Annual Updating Amendment for Registered Adviser · fiscal year 2025.
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 MORTGAGE STRATEGIES SIF MASTER II, LPHedge Fund · Master$1.75BGross 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
- 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
- 805-9927338133
- Reported beneficial owners
- 29
- Minimum commitment
- $1M
- Form D file number
- 021-447302
Form ADV 2068524 · Mar 31, 2026 · Schedule D 7.B.(1)
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Annual Updating Amendment for Registered Adviser · fiscal year 2025.
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 Mar 7, 2025 · previous imported filing
- Regulatory AUM$119,844,000,000 → $149,623,092,189
- Client accounts45 → 37
- Employees134 → 146
Filing source
Form ADV 2068524 · Mar 31, 2026 · Items 1 & 5
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Annual Updating Amendment for Registered Adviser · fiscal year 2025.
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
- $150B
- 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 2068524 · Mar 31, 2026 · Items 1 & 5
Reported by MARINER INVESTMENT GROUP, LLC (CRD 124744).
Annual Updating Amendment for Registered Adviser · fiscal year 2025.
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.