Mariner Investment Group LLC

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Assets, Funds, Holdings

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Mariner Investment Group LLC
CRD #124744
SEC #801-62016
CIK #0001096978, 0001373442
AUM 149.62 B (2026-03-31)
Employees 146 (62% Investors, 6% Brokers)
Phone914-670-4300
Address299 Park Avenue
New York, NY 10171
Source [IAPD] [EDGAR] [Website] [LinkedIn]
Total AUM ($B)
2502001501005002003201120192027
Sector Form 13F Holdings Value ($B)
iShares Bitcoin Trust 0.1
New Residential Investment Corp 0.0
Shift4 Payments Inc 0.0
Williams Companies Inc 0.0
Caterpillar Inc 0.0
Chimera Investment Corp 0.0
HJ Heinz Holding Corp 0.0
Entergy Corp /DE/ 0.0
Carrier Global Corp 0.0
Corning Inc /NY 0.0
View All
Holdings by Sector ($B)
907254361802011201620212027
Type Form D Funds Date Sold AUM
HF Mariner Peconic Bay Fund LLC [2025-02-28] 234.1 M 176.4 M
Filed 2026-01-08 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $10,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Bright Meadow Securities Strategies Fund LLC 2024-02-29 2,239.5 M
HF Bright Meadow Mortgage Strategies SIF Master II LP [2022-08-25] 428.1 M 1,752.4 M
Filed 2026-01-08 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $100,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Bright Meadow Mortgage Strategies SIF Master LP [2022-08-25] 810.0 M 651.5 M
Filed 2026-01-08 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $100,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Mariner Greyarc Equity Fund LP [2022-03-31] 2.6 M 4.6 M
Filed 2023-01-04 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Bright Meadow Agency Markets Master Fund LP [2022-03-01] 46.3 M 631.6 M
Filed 2026-01-08 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $10,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF CCP Alternative Asset Fund LLC Series 2-A [2021-02-08] 7.5 M 7.8 M
Filed 2021-12-21 (D/A) · Exemption 506(b), 3(c), 3(c)(1) · Minimum $250,000 · Remaining Indefinite · Duration One year or less · Net Assets $1 - $5,000,000
HF Mariner Cicero CMBS Opportunities Master Fund LP [2019-12-19] 10.0 M 93.1 M
Filed 2026-01-30 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $100,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Mariner Alternative Relative Value Master Fund LP 2018-11-28 10.13 B
HF Bright Meadow Agency MBS Master Fund LP [2018-03-30] 166.0 M 8,442.5 M
Filed 2026-01-30 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $10,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
View All
AUM Breakdown Accounts AUM ($B)
By Client Type
(a) Individuals (other than high net worth individuals) 0 0.0
(b) Individuals (high net worth individuals) 0 0.0
(c) Banking or thrift institutions 0 0.0
(d) Investment companies 2 3.2
(e) Business development companies 0 0.0
(f) Pooled investment vehicles 34 125.9
(g) Pension and profit sharing plans 0 2.1
(h) Charitable organizations 0 0.0
(i) State or municipal government entities 0 0.0
(j) Other investment advisers 0 0.0
(k) Insurance companies 0 0.0
(l) Sovereign wealth funds and foreign official institutions 0 18.5
(m) Corporations or other businesses not listed above 0 0.0
(n) Other 0 0.0
Total 37 149.6
By Discretionary
Discretionary 37 149.6
Non-Discretionary 0 0.0
Total 37 149.6
By Non-United States Persons
Non-United States Persons 115.9
United States Persons 33.8
Total 37 149.6
Limited Partners2011 - 2026
Alaska Division of Retirement and Benefits
New York State and Local Retirement System
Pennsylvania Public School Employees' Retirement System
Form D Directors Role # Filings # Firms 2011 - 2026
Ronan Guilfoyle Director 358 108
Geoff Ruddick Director 256 66
Kevin Phillip Director 193 39
James Keyes Director 153 31
Paul Stevenson Director 120 25
Don Ebanks Director 95 25
Ian Pilgrim Director 148 19
Nicole Ramroop Director 43 19
David Walker Director 75 8
Dawn Cummings Director 13 7
View All
EDGAR Form CIK 2011 - 2026
13F-HR [0001096978]
SC 13D [0001096978]
13F-HR [0001373442]
3 [0001373442]
Form 13D/13G Filer Form 13D/13G Subject Filed
Mariner Investment Group LLC RMR Real Estate Income Fund [2015-07-27]
Mariner Investment Group LLC Nuveen Flexible Investment Income Fund [2014-08-26]
Firm Profile (Form ADV)
Discretionary AUM$29.0B
ServesInstitutional
Fund TypesHedge Fund, Private Equity
LEINXO6CSBU4HJQCHKIQG96
Form 3/4/5 Subject 2011 - 2026
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