MARINER INVESTMENT GROUP LLC

NEW YORK, NY · CIK 1096978 · 13F filing filed 2026-07-27

SEC-registered investment adviser since 2003 · limited liability company

Assets managed$176.3bn
Staff176 · 89 in investment roles
Main clients (by assets)Private funds 72%, Sovereign wealth funds 24%, Mutual funds and ETFs 2%
Private funds17 (16 hedge) · $123.5bn gross assets
Websitemarinerinvestment.com
Form ADV · 2026-08-28SEC adviser record

Legal entityMARINER INVESTMENT GROUP, LLC (US)

Kindhedge funds, futures
Others nearbyNew York, NY, Summit, NJ, Purchase, NY, London, Norwalk, CT, Columbia, MD

As an employer

Offices in2 countries
Private fundshedge 16, other private 1

Where they work

people there (dot area)number not reportedmain officeHover or tap a dot. Australian and UK companies are placed at their business or registered address, with their staff across the whole country.

Offices

From Form ADV: the main office and the other offices where it does advisory work (at most the 25 largest), with the people doing investment work at each. “About” is worked out: the firm's investment staff less its other offices. Each city links to the other managers there.

City	Country	People
New York, NY (main office)United States	United States	about 45
Summit, NJUnited States	United States	13
Purchase, NYUnited States	United States	10
London2 officesUnited Kingdom	United Kingdom	9
Rowayton, CTUnited States	United States	8
Columbia, MDUnited States	United States	4

US visa salary filings

Filings FY20241
Median salary offered$150,000
Middle half$150,000 – $150,000
Job titles1
E-3 (Australians)1

Job title	Filings	Median	Range
Credit AnalystHarrison, NY	1	$150,000

Source: US Department of Labor, Labor Condition Application disclosure data (certified, full-time, yearly equivalent). These are the salaries the employer committed to pay the visa roles it filed for, at least the prevailing wage for the job and place; they are not the pay of all its staff. Filed by: Mariner Investment Group, LLC.

Map: places from GeoNames (CC BY 4.0), outlines from Natural Earth.

$426.3m reported value +29.2% vs Q1 2026

75positions

76.2%in top 10

29 new 15 added 4 reduced 9 sold out vs Q1 2026

Options: 22 call positions ($31.2m notional), 27 put positions ($5.6m notional) – listed below, not included above.

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#	Security	Ticker	Shares	Value	% of portfolio	Change	Shares change
1	ISHARES BITCOIN TRUST ETF SHS BEN INT IBIT	IBIT	3,129,352	$104.2m24.44%	24.44%	Unchanged
2	SPDR S&P 500 ETF TR TR UNIT SPY	SPY	76,475	$57.1m13.40%	13.40%	New
3	ALIBABA GROUP HLDG LTD NOTE 0.500% 6/0 · principal BABA 0.5 06.01.31 · principal	BABA 0.5 06.01.31	30,000,000	$35.4m8.31%	8.31%	Added +5.0m	+5,000,000 20.0%
4	FLUOR CORP NOTE 1.125% 8/1 · principal FLR 1.125 08.15.29 · principal	FLR 1.125 08.15.29	25,100,000	$33.3m7.81%	7.81%	Unchanged
5	DOORDASH INC NOTE 5/1 · principal DASH 0 05.15.30 · principal	DASH 0 05.15.30	25,000,000	$24.7m5.78%	5.78%	New
6	GLOBAL PMTS INC NOTE 1.500% 3/0 · principal GPN 1.5 03.01.31 · principal	GPN 1.5 03.01.31	25,000,000	$22.5m5.28%	5.28%	Unchanged
7	RIVIAN AUTOMOTIVE INC NOTE 3.625%10/1 · principal RIVN 3.625 10.15.30 · principal	RIVN 3.625 10.15.30	15,000,000	$16.0m3.76%	3.76%	New
8	RITHM CAPITAL CORP COM NEW RITM	RITM	1,332,583	$12.5m2.94%	2.94%	Unchanged
9	AKAMAI TECHNOLOGIES INC NOTE 0.250% 5/1 · principal AKAM 0.25 05.15.33 · principal	AKAM 0.25 05.15.33	7,500,000	$11.0m2.57%	2.57%	New
10	ISHARES TR 1 3 YR TREAS BD SHY	SHY	101,199	$8.3m1.95%	1.95%	Added +25.4k	+25,382 33.5%
11	LIVE NATION ENTERTAINMENT IN NOTE 2.875% 1/1 · principal LYV 2.875 01.15.30 · principal	LYV 2.875 01.15.30	5,000,000	$6.0m1.40%	1.40%	Unchanged
12	CHIMERA INVT CORP COM SHS CIM	CIM	378,899	$5.1m1.19%	1.19%	Unchanged
13	ISHARES TR NATIONAL MUN ETF MUB	MUB	45,454	$4.9m1.15%	1.15%	New
14	ENTERGY CORP NEW COM ETR	ETR	40,000	$4.6m1.08%	1.08%	Unchanged
15	VANGUARD SCOTTSDALE FDS SHRT TRM CORP BD VCSH	VCSH	53,317	$4.2m0.99%	0.99%	Added +996	+996 1.9%
16	LINCOLN ELEC HLDGS INC COM LECO	LECO	15,705	$4.2m0.98%	0.98%	Added +9.7k	+9,705 161.8%
17	WILLIAMS COS INC COM WMB	WMB	55,000	$4.1m0.96%	0.96%	Added +10.0k	+10,000 22.2%
18	CORNING INC COM GLW	GLW	14,000	$3.6m0.84%	0.84%	New
19	SHIFT4 PMTS INC 6 SER A CNV PREF FOUR 6 05.01.28	FOUR 6 05.01.28	55,000	$3.4m0.80%	0.80%	New
20	MASTEC INC COM MTZ	MTZ	8,000	$3.3m0.78%	0.78%	Added +2.0k	+2,000 33.3%
21	GRUPO AEROMEXICO SAB DE CV SPONSORED ADS AERO	AERO	169,280	$3.0m0.71%	0.71%	Unchanged
22	FERGUSON ENTERPRISES INC COMMON STOCK NEW FERG	FERG	12,000	$2.8m0.67%	0.67%	New
23	ISHARES INC MSCI BRAZIL ETF EWZ	EWZ	80,000	$2.8m0.65%	0.65%	New
24	REDWOOD TRUST INC COM RWT	RWT	550,361	$2.6m0.61%	0.61%	Unchanged
25	SHIFT4 PMTS INC CL A FOUR	FOUR	50,000	$2.4m0.57%	0.57%	Reduced -95.0k	-95,000 -65.5%
26	ISHARES TR 3 7 YR TREAS BD IEI	IEI	20,551	$2.4m0.57%	0.57%	Added +12.9k	+12,913 169.1%
27	ISHARES TR 7-10 YR TRSY BD IEF	IEF	22,596	$2.1m0.50%	0.50%	New
28	PENNYMAC CORP NOTE 8.500% 6/0 · principal PMT 8.5 06.01.29 · principal	PMT 8.5 06.01.29	2,000,000	$2.0m0.48%	0.48%	Added +1.0m	+1,000,000 100.0%
29	MFA FINL INC COM MFA	MFA	210,000	$2.0m0.48%	0.48%	Unchanged
30	PENNYMAC MTG INVT TR COM PMT	PMT	180,000	$2.0m0.48%	0.48%	Unchanged
31	ISHARES TR IBOXX HI YD ETF HYG	HYG	24,600	$2.0m0.46%	0.46%	New
32	REDWOOD TRUST INC NOTE 7.750% 6/1 · principal RWT 7.75 06.15.27 · principal	RWT 7.75 06.15.27	1,800,000	$1.8m0.43%	0.43%	Unchanged
33	TOLL BROTHERS INC COM TOL	TOL	10,000	$1.6m0.39%	0.39%	New
34	REDFIN CORP NOTE 0.500% 4/0 · principal RDFN 0.5 04.01.27 · principal	RDFN 0.5 04.01.27	1,645,000	$1.6m0.37%	0.37%	Unchanged
35	BRIGHTHOUSE FINL INC COM BHF	BHF	25,000	$1.6m0.37%	0.37%	New
36	ISHARES TR 20 YR TR BD ETF TLT	TLT	18,080	$1.6m0.37%	0.37%	New
37	COMFORT SYS USA INC COM FIX	FIX	750	$1.5m0.35%	0.35%	New
38	IREN LIMITED ORDINARY SHARES IREN	IREN	30,000	$1.4m0.32%	0.32%	New
39	LUMEN TECHNOLOGIES INC COM LUMN	LUMN	175,000	$1.3m0.32%	0.32%	Added +100.0k	+100,000 133.3%
40	DYNEX CAP INC COM DX	DX	95,000	$1.2m0.29%	0.29%	Unchanged
41	GE VERNOVA INC COM GEV	GEV	1,000	$1.2m0.28%	0.28%	New
42	ISHARES TR EXPANDED TECH IGV	IGV	12,500	$1.1m0.27%	0.27%	Unchanged
43	RANGE RES CORP COM RRC	RRC	30,000	$1.1m0.26%	0.26%	Unchanged
44	EQT CORP COM EQT	EQT	20,000	$1.1m0.25%	0.25%	Unchanged
45	SABRE CORP COM SABR	SABR	400,000	$836.0k0.20%	0.20%	New
46	WALMART INC COM WMT	WMT	7,264	$822.7k0.19%	0.19%	Unchanged
47	WIX COM LTD SHS WIX	WIX	17,144	$777.8k0.18%	0.18%	Added +8.1k	+8,144 90.5%
48	KARMAN HLDGS INC COMMON STOCK KRMN	KRMN	15,000	$748.8k0.18%	0.18%	Added +10.0k	+10,000 200.0%
49	QNITY ELECTRONICS INC COMMON STOCK Q	Q	4,000	$653.2k0.15%	0.15%	New
50	CORE SCIENTIFIC INC NEW COM CORZ	CORZ	25,000	$639.8k0.15%	0.15%	Added +5.0k	+5,000 25.0%
51	CIPHER MINING INC COM CIFR	CIFR	25,000	$612.5k0.14%	0.14%	New
52	ON SEMICONDUCTOR CORP NOTE 0.500% 3/0 · principal ON 0.5 03.01.29 · principal	ON 0.5 03.01.29	500,000	$603.8k0.14%	0.14%	Reduced -12.0m	-12,000,000 -96.0%
53	CISCO SYS INC COM CSCO	CSCO	5,000	$587.3k0.14%	0.14%	New
54	CROWN HLDGS INC COM CCK	CCK	5,000	$559.1k0.13%	0.13%	Unchanged
55	AES CORP COM AES	AES	35,000	$513.1k0.12%	0.12%	Unchanged
56	COREWEAVE INC COM CL A CRWV	CRWV	5,000	$497.7k0.12%	0.12%	New
57	FLEX LTD ORD FLEX	FLEX	3,000	$486.2k0.11%	0.11%	New
58	WOLFSPEED INC COMMON STOCK WOLF	WOLF	10,000	$482.5k0.11%	0.11%	Reduced -15.0k	-15,000 -60.0%
59	EXPRO GROUP HOLDINGS NV COM 96779EUR	96779EUR	30,000	$443.1k0.10%	0.10%	Added +10.0k	+10,000 50.0%
60	IHEARTMEDIA INC COM CL A IHRT	IHRT	102,064	$437.9k0.10%	0.10%	Added +38.9k	+38,886 61.5%
61	TWO HBRS INVT CORP COM COM		32,776	$406.8k0.10%	0.10%	Unchanged
62	MCDONALDS CORP COM MCD	MCD	1,500	$405.5k0.10%	0.10%	New
63	AG MTG INVT TR INC COM NEW MITT	MITT	48,094	$380.9k0.09%	0.09%	Unchanged
64	NOBLE CORP PLC ORD SHS A NE	NE	10,000	$373.0k0.09%	0.09%	Unchanged
65	TELEPHONE & DATA SYS INC COM NEW TDS	TDS	10,000	$370.1k0.09%	0.09%	Added +5.0k	+5,000 100.0%
66	PACKAGING CORP AMER COM PKG	PKG	1,500	$357.4k0.08%	0.08%	Unchanged
67	USA RARE EARTH INC COM USAR	USAR	15,000	$323.7k0.08%	0.08%	New
68	AEVEX CORP COM CL A AVEX	AVEX	13,528	$282.6k0.07%	0.07%	New
69	CPI CARD GROUP INC COM NEW PMTS	PMTS	13,050	$271.2k0.06%	0.06%	Reduced -5.0k	-5,000 -27.7%
70	TOWER SEMICONDUCTOR LTD SHS NEW TSEM	TSEM	1,000	$260.6k0.06%	0.06%	New
71	ENPHASE ENERGY INC COM ENPH	ENPH	5,000	$246.2k0.06%	0.06%	New
72	ANGEL OAK MORTGAGE REIT INC COM AOMR	AOMR	17,754	$161.2k0.04%	0.04%	Unchanged
73	BLEICHROEDER ACQUISITI CORP W EXP 12/23/203 W EXP 12/23/203		10,000	$21.8k0.01%	0.01%	New
74	BOREALIS FOODS INC *W EXP 02/07/202 BRLSW	BRLSW	23,300	$1.1k0.00%	0.00%	Unchanged
75	WESTERN ACQSTN VENTURES CORP *W EXP 09/01/202 CYCUW	CYCUW	30,000	$5250.00%	0.00%	Unchanged

Sold out since Q1 2026

Security	Ticker	Shares held before	Value then
SNOWFLAKE INC SNOW 0 10.01.27	SNOW 0 10.01.27	15,000,000	$17.7m15.0m shares
LIVE NATION ENTERTAINMENT IN LYV 3.125 01.15.29	LYV 3.125 01.15.29	5,000,000	$7.6m5.0m shares
CATERPILLAR INC CAT	CAT	3,800	$2.7m3.8k shares
SOLSTICE ADVANCED MATLS INC SOLS	SOLS	15,000	$1.1m15.0k shares
LEGENCE CORP LGN	LGN	15,000	$846.9k15.0k shares
MICROCHIP TECHNOLOGY INC. MCHP	MCHP	13,000	$839.9k13.0k shares
MACOM TECH SOLUTIONS HLDGS I MTSI	MTSI	3,000	$666.2k3.0k shares
WOLFSPEED INC WOLF 2.5 06.15.31	WOLF 2.5 06.15.31	271,000	$387.9k271.0k shares
WINGSTOP INC WING	WING	1,000	$155.0k1.0k shares

Options (notional value)

Underlying	Ticker	Type	Shares controlled	Notional	Change
INVESCO QQQ TR QQQ · Call	QQQ	Call	1,400,000	$19.5m1.4m shares	New
COHERENT CORP COHR · Call	COHR	Call	36,500	$2.4m36.5k shares	Reduced
CIENA CORP CIEN · Call	CIEN	Call	36,000	$2.1m36.0k shares	New
QNITY ELECTRONICS INC Q · Call	Q	Call	100,000	$1.6m100.0k shares	Added
ENTEGRIS INC ENTG · Call	ENTG	Call	50,000	$1.1m50.0k shares	Added
LYONDELLBASELL INDUSTRIES N LYB · Put	LYB	Put	200,000	$1.0m200.0k shares	Reduced
GE VERNOVA INC GEV · Call	GEV	Call	10,000	$846.0k10.0k shares	New
CATERPILLAR INC CAT · Call	CAT	Call	15,500	$790.1k15.5k shares	Added
SHIFT4 PMTS INC FOUR · Call	FOUR	Call	150,000	$667.5k150.0k shares	Reduced
OLIN CORP OLN · Put	OLN	Put	254,000	$665.5k254.0k shares	Added
DOW INC DOW · Put	DOW	Put	268,500	$620.7k268.5k shares	Added
QUANTA SVCS INC PWR · Call	PWR	Call	30,000	$607.5k30.0k shares	Unchanged
SOLSTICE ADVANCED MATLS INC SOLS · Call	SOLS	Call	94,000	$502.9k94.0k shares	New
ISHARES TR HYG · Put	HYG	Put	1,900,000	$492.0k1.9m shares	Reduced
INVESCO EXCH TRADED FD TR II BKLN · Put	BKLN	Put	1,423,200	$421.2k1.4m shares	Added
NOKIA CORP NOK · Call	NOK	Call	500,000	$365.0k500.0k shares	New
APOLLO GLOBAL MGMT INC APO · Put	APO	Put	40,000	$286.0k40.0k shares	New
SPDR S&P 500 ETF TR SPY · Put	SPY	Put	170,000	$275.7k170.0k shares	Reduced
POST HLDGS INC POST · Put	POST	Put	75,000	$266.2k75.0k shares	Unchanged
FS KKR CAP CORP FSK · Put	FSK	Put	700,000	$257.5k700.0k shares	Unchanged
HOWMET AEROSPACE INC HWM · Call	HWM	Call	70,000	$235.5k70.0k shares	New
ARES MANAGEMENT CORPORATION ARES · Put	ARES	Put	40,000	$222.0k40.0k shares	New
STMICROELECTRONICS N V STM · Call	STM	Call	28,500	$161.0k28.5k shares	New
INVESCO QQQ TR QQQ · Put	QQQ	Put	26,800	$152.2k26.8k shares	New
LENNAR CORP LEN · Put	LEN	Put	123,500	$151.8k123.5k shares	Unchanged