Clients
Mariner Investment Group serves 36 clients, 34 of them pooled investment vehicles. The average client has about $4.90 billion with the firm.
- Investment companies2 clients2%
- Pooled investment vehicles34 clients72%
- Sovereign wealth funds and foreign official institutions24%
- Pension and profit-sharing plans2%
Show client breakdownHide client breakdown
| Client type | Clients | Regulatory AUM | Share | Avg. per client |
|---|---|---|---|---|
| Investment companies | 2 | $4,396,190,611 | 2.5% | $2.20B |
| Pooled investment vehicles | 34 | $127,217,602,356 | 72.2% | $3.74B |
| Pension and profit-sharing plans | Not reported | $2,782,251,124 | 1.6% | — |
| Sovereign wealth funds and foreign official institutions | Not reported | $41,912,084,560 | 23.8% | — |
| Total | 36 | $176,308,128,651 | 100% | $4.90B |
- Clients
- 2
- Regulatory AUM
- $4,396,190,611
- Share
- 2.5%
- Avg. per client
- $2.20B
- Clients
- 34
- Regulatory AUM
- $127,217,602,356
- Share
- 72.2%
- Avg. per client
- $3.74B
- Clients
- Not reported
- Regulatory AUM
- $2,782,251,124
- Share
- 1.6%
- Avg. per client
- —
- Clients
- Not reported
- Regulatory AUM
- $41,912,084,560
- Share
- 23.8%
- Avg. per client
- —
Total
- Clients
- 36
- Regulatory AUM
- $176,308,128,651
- Share
- 100%
- Avg. per client
- $4.90B
What it does
Mariner Investment Group provides portfolio management for investment companies, portfolio management for pooled vehicles and portfolio management for institutions. It is paid through a percentage of assets and performance-based fees.
Mariner Investment Group provided financial planning to 0 clients last fiscal year and advises 17 private funds.
100.0% of assets ($176.31B across 39 accounts) are managed with discretion. 51% of clients are outside the U.S., and 0 clients received advice without assets under management last fiscal year.
What the accounts hold
- Stocks5%
- Bonds77%
- U.S. government and agency bonds70%
- Sovereign bonds7%
- Cash3%
- Other15%
- Non-agency rmbs, syndicated bank loans and repurchase agreements15%
Custodians
Mariner Investment Group’s client accounts are held mainly at J.P. Morgan, with 20% of managed assets, and SG Americas Securities, with 6%. Mariner Investment Group has custody of client assets.
- J.P. MorganJ.P. Morgan Securities LLC · New York, NY · $34.63B20%
- SG Americas SecuritiesSG Americas Securities, LLC · New York, NY · $10.07B6%
- All other custodians$131.61B75%
Ownership and leadership
Mig Holdings, LLC owns 75% or more of Mariner Investment Group, and Curtis Arledge is its CEO.
- Owns 75% or more of Mariner Investment Group, LLC
Mig Holdings, LLC
Control person · since December 2007
- Owns 25% to 50% of Mig Holdings, LLC
Curtis Arledge
Control person · since July 2020
Leadership
- Curtis ArledgeChairman & Chief Executive Officer
- Charles HowePresident & Chief Financial Officer
- Patrick BeirneChief Operating Officer
- Russell ThompsonChief Compliance Officer & Deputy General Counsel
- John KeltyChief Legal Officer
- Peter O'RourkeGeneral Counsel
Staff
- 176 employees
- 89 in advisory functions
- 10 broker-dealer reps
- 6 soliciting firms
Reported holdings
Mariner Investment Group’s reported 13F holdings total $463.1M across 124 positions, and the ten largest make up 72.6% of it.
- $463.1M
- Reported 13F value
- 124
- Positions
- 72.6%
- In the 10 largest
- +33.9%
- Value vs. prior quarter
- iShares Bitcoin Trust ETF · Shs Ben Int22.5%
- State Str SPDR S&P 500 ETF T · TR Unit12.3%
- Alibaba Group Hldg Ltd · Note 0.500% 6/07.7%
- Fluor Corp. · Note 1.125% 8/17.2%
- Doordash Inc. · Note 5/15.3%
- Global Pmts Inc. · Note 1.500% 3/04.9%
- Invesco Qqq TR · Unit Ser 1Call4.2%
- Rivian Automotive Inc. · Note 3.625%10/13.5%
- Rithm Capital Corp.2.7%
- Akamai Technologies Inc. · Note 0.250% 5/12.4%
Together, the ten largest are 72.6% of reported value.
A 13F covers only exchange-traded long positions the firm holds with discretion, so this $463.1M is not its $176.31B in regulatory assets and does not represent any individual client's portfolio.
Fees
Mariner Investment Group is paid through a percentage of assets under management and performance-based fees.
Mariner Investment Group’s fee rates are not included in this profile. Find its brochure on the SEC’s site.
Offices and registrations
Besides its headquarters, Mariner Investment Group has 6 offices, with 5 listed addresses across 4 states.
New York · 2 listed addresses
- 299 Park Avenue, 5th Floor, New YorkHQ
- 3 Manhattanville Road, Purchase
Connecticut · 1 listed address
- 95b Rowayton Avenue, Rowayton
Maryland · 1 listed address
- 11000 Broken Land Parkway, Columbia
New Jersey · 1 listed address
- 25 Union Place, Summit
Other business names
Mariner Investment Group has reported 12 other business names to the SEC.
- "bright Meadow" Including Bright Meadow Capital Agency, LLC
- "bright Meadow" Including Bright Meadow Capital, LLC
- "cicero" Including Mariner Cicero GP, LLC
- "concordia" and "concordia G10" Including Concordia G10 Strategies GP LLC
- "concordia" and "concordia Muni" Including Concordia Municipal Strategies GP LLC
- "glen Oaks" Including Mariner Glen Oaks GP, LLC
- Bowport
- Mariner Frontier GP, LLC
- Mariner GP, LLC
- Oxus
- Peconic Bay
- Silvermine
Registration details
- Legal name
- Mariner Investment Group, LLC
- Headquarters
- 299 Park Avenue, 5th Floor, New York, NY 10171
- Phone
- 914-670-4300
- Website
- www.marinerinvestment.com
- SEC file
- 801-62016
- Structure
- Delaware LLC
- Fiscal year end
- December
This directory does not report disciplinary history, for any firm or individual, in either direction. The SEC publishes the complete record, including any disciplinary events, and it is the authoritative place to check one. See this firm's record on adviserinfo.sec.gov
Common questions
How many clients does Mariner Investment Group have?
Mariner Investment Group has 36 clients and manages $176.3 billion for them, as of August 2026. They include 34 pooled investment vehicles and 2 investment companies.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 28 August 2026
What services does Mariner Investment Group offer?
Mariner Investment Group provides portfolio management for investment companies, portfolio management for pooled vehicles and portfolio management for institutions.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file
Which custodians does Mariner Investment Group use?
Mariner Investment Group’s separately managed account assets are held at J.P. Morgan Securities LLC (New York, NY), with $34,625,866,743 and SG Americas Securities, LLC (New York, NY), with $10,068,468,941. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 28 August 2026
How many financial advisors does Mariner Investment Group have?
Mariner Investment Group has 0 investment adviser representatives registered with state securities authorities, out of 176 employees, and 89 perform investment advisory functions. 10 are registered representatives of a broker-dealer and 0 are licensed insurance agents.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does Mariner Investment Group invest in?
At the end of its last fiscal year, Mariner Investment Group’s separately managed accounts held 70% U.S. government and agency bonds, 15% non-agency rmbs, syndicated bank loans and repurchase agreements, 7% sovereign bonds, 5% exchange-traded equities and 3% cash and equivalents. It advises 17 private funds.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns Mariner Investment Group?
Mariner Investment Group is owned through a holding company by Curtis Arledge. Its direct owner is Mig Holdings, LLC (75% or more).
Source: Form ADV Part 1A, Schedules A and B, filed 28 August 2026
How does Mariner Investment Group get paid?
Mariner Investment Group is paid through a percentage of assets under management and performance-based fees. Its Form ADV lists no commissions among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file