Mariner Investment 13F-HR Quarterly holdings report by institutional manager

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL

OMB Number:		3235-0006
Expires:	Oct 31, 2018
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COLUMN 1	COLUMN 2	COLUMN 3	COLUMN 4	COLUMN 5			COLUMN 6	COLUMN 7	COLUMN 8
			VALUE	SHRS OR	SH/	PUT/	INVESTMENT	OTHER	VOTING AUTHORITY
NAME OF ISSUER	TITLE OF CLASS	CUSIP	(x$1000)	PRN AMT	PRN	CALL	DISCRETION	MANAGER	SOLE	SHARED	NONE
ACCELERATE ACQUISITION CORP	UNIT 99/99/9999	00439D201	225	22,670	SH		DFND		22,670	0	0
AF ACQUISITION CORP	UNIT 03/31/2028	001040203	151	15,301	SH		DFND		15,301	0	0
ALPS ETF TR	ALERIAN MLP	00162Q452	5	50,000	SH	Put	DFND		50,000	0	0
ALTIMAR ACQUISITION CORP	SHS CL A	G03707109	419	42,440	SH		DFND		42,440	0	0
AMERICAN AIRLS GROUP INC	COM	02376R102	4	100,000	SH	Put	DFND		100,000	0	0
ARK ETF TR	INNOVATION ETF	00214Q104	35	19,000	SH	Put	DFND		19,000	0	0
ATHENA TECHNOLOGY ACQUISI CO	UNIT 99/99/9999	04687A208	201	20,300	SH		DFND		20,300	0	0
AVAYA HLDGS CORP	NOTE 2.250% 6/1	05351XAB7	5,726	4,640,000	PRN		DFND		4,640,000	0	0
BLACKROCK DEBT STRATEGIES FD	COM NEW	09255R202	116	10,529	SH		DFND		10,529	0	0
BLACKROCK FLOATING RATE INCO	COM	09255X100	917	70,551	SH		DFND		70,551	0	0
BLACKSTONE SENIOR FLOATNG RA	COM	09256U105	625	40,178	SH		DFND		40,178	0	0
BLACKSTONE STRATEGIC CREDIT	COM SHS BEN IN	09257R101	847	63,523	SH		DFND		63,523	0	0
CENTER COAST BRKFLD MLP ENRG	SHS BEN INT	151461209	184	16,776	SH		DFND		16,776	0	0
CLEARBRIDGE ENERGY MIDSTRM O	COM	18469P209	309	16,550	SH		DFND		16,550	0	0
COHEN & STEERS MLP INCOME &	COM SHS	19249B106	128	40,000	SH		DFND		40,000	0	0
CORAZON CAPITAL V838 MONOCER	UNIT 03/24/2026	G24237110	143	14,408	SH		DFND		14,408	0	0
DECARBONIZATION PLUS ACQU II	UNIT 03/19/2026	24279D204	212	21,300	SH		DFND		21,300	0	0
DISRUPTIVE ACQUISITION CORP	UNIT 03/06/2026	G2770Y110	278	28,166	SH		DFND		28,166	0	0
DOUBLELINE YIELD OPPORTUNITI	COM	25862D105	1,041	54,403	SH		DFND		54,403	0	0
EATON VANCE CALIF MUN INCOM	SH BEN INT	27826F101	135	10,209	SH		DFND		10,209	0	0
EATON VANCE FLTG RATE INCOM	COM SHS BEN INT	278284104	1,037	63,683	SH		DFND		63,683	0	0
EATON VANCE FLTING RATE INC	COM	278279104	902	63,956	SH		DFND		63,956	0	0
EQ HEALTH ACQUISITION CORP	UNIT 02/02/2028	26886A200	153	15,404	SH		DFND		15,404	0	0
EVO ACQUISITION CORP	UNIT 99/99/9999	30052G207	188	18,900	SH		DFND		18,900	0	0
EXPEDIA GROUP INC	COM NEW	30212P303	6	10,000	SH	Put	DFND		10,000	0	0
EXXON MOBIL CORP	COM	30231G102	25	30,000	SH	Put	DFND		30,000	0	0
FIRST TR ENERGY INFRASTRCTR	COM	33738C103	253	20,399	SH		DFND		20,399	0	0
FIRST TRUST SPECIALTY FINANC	COM BEN INTR	33733G109	428	107,309	SH		DFND		107,309	0	0
FIRSTENERGY CORP	COM	337932107	2,428	70,000	SH		DFND		70,000	0	0
FS KKR CAP CORP II	COM	35952V303	1,043	53,422	SH		DFND		53,422	0	0
GABELLI CONV & INC SECS FD I	COM	36240B109	65	10,603	SH		DFND		10,603	0	0
GAMCO GLOBAL GOLD NAT RES &	COM SH BEN INT	36465A109	486	140,000	SH		DFND		140,000	0	0
GAMCO NAT RES GOLD & INCOME	SH BEN INT	36465E101	979	195,000	SH		DFND		195,000	0	0
GDL FD	COM SH BEN IT	361570104	2,067	231,502	SH		DFND		231,502	0	0
GOLDMAN SACHS MLP ENERGY REN	COM	38148G206	204	21,100	SH		DFND		21,100	0	0
GORES GUGGENHEIM INC	UNIT 03/25/2028	38286Q206	196	19,733	SH		DFND		19,733	0	0
GROWTH CAP ACQUISITION CORP	UNIT 06/01/2027	39986V206	256	25,840	SH		DFND		25,840	0	0
GX ACQUISITION CORP II	UNIT 03/17/2026	36260F204	100	10,000	SH		DFND		10,000	0	0
INNOVATIVE INDL PPTYS INC	COM	45781V101	410	50,000	SH	Put	DFND		50,000	0	0
ISHARES TR	IBOXX HI YD ETF	464288513	11	60,000	SH	Put	DFND		60,000	0	0
KAYNE ANDERSON NEXTGEN ENRGY	COM	48661E108	67	10,000	SH		DFND		10,000	0	0
MAGNUM OPUS ACQUISITION LTD	UNIT 06/03/2026	G5S70A120	198	20,000	SH		DFND		20,000	0	0
MASON INDUSTRIAL TECHNOLGY I	UNIT 99/99/9999	57520Y205	135	13,613	SH		DFND		13,613	0	0
MILLER HOWARD HIGH INC EQTY	COM SHS BEN IN	600379101	184	19,211	SH		DFND		19,211	0	0
NEUBERGER BERMAN MLP & ENERG	COM	64129H104	273	65,096	SH		DFND		65,096	0	0
NEXPOINT STRATEGIC OPPORTES	COM NEW	65340G205	720	63,189	SH		DFND		63,189	0	0
NUVEEN DIVERSIFIED DIVID & I	COM	6706EP105	447	47,134	SH		DFND		47,134	0	0
NUVEEN FLOATING RATE INCOME	COM	67072T108	2,339	242,173	SH		DFND		242,173	0	0
NUVEEN FLTNG RTE INCM OPP FD	COM SHS	6706EN100	2,635	276,170	SH		DFND		276,170	0	0
NUVEEN NEW JERSEY QULT MUN F	COM	67069Y102	351	24,252	SH		DFND		24,252	0	0
NUVEEN SHT DUR CR OPP FD	COM	67074X107	787	55,716	SH		DFND		55,716	0	0
NUVEEN SR INCOME FD	COM	67067Y104	805	143,544	SH		DFND		143,544	0	0
OWL ROCK CAPITAL CORPORATION	COM	69121K104	713	51,420	SH		DFND		51,420	0	0
PIMCO ENRGY TACTICAL CR OPP	COM SHS BEN INT	69346N107	891	86,110	SH		DFND		86,110	0	0
PIMCO NEW YORK MUN FD II	COM	72200Y102	154	13,646	SH		DFND		13,646	0	0
PIONEER FLOATING RATE TR	COM	72369J102	242	21,100	SH		DFND		21,100	0	0
POWER REIT	COM	73933H101	389	8,608	SH		DFND		8,608	0	0
PROGRESS ACQUISITION CORP	UNIT 12/25/2025	74327P204	148	15,000	SH		DFND		15,000	0	0
RIVERNORTH MANAGED DUR MUN I	COM	76882H105	288	15,496	SH		DFND		15,496	0	0
RMR MORTGAGE TR	COM	76970B101	1,174	97,859	SH		DFND		97,859	0	0
SALIENT MIDSTREAM & MLP FD	SH BEN INT	79471V105	221	43,308	SH		DFND		43,308	0	0
SELECT SECTOR SPDR TR	ENERGY	81369Y506	42	100,000	SH	Put	DFND		100,000	0	0
SPDR S&P 500 ETF TR	TR UNIT	78462F103	40	130,000	SH	Put	DFND		130,000	0	0
SPROTT PHYSICAL GOLD & SILVE	TR UNIT	85208R101	838	48,243	SH		DFND		48,243	0	0
TAILWIND INTERNATNAL ACQ COR	UNIT 99/99/9999	G8662F127	187	18,950	SH		DFND		18,950	0	0
TB SA ACQUISITION CORP	UNIT 03/25/2028	G8657L113	392	39,800	SH		DFND		39,800	0	0
TORTOISE ENERGY INFRA CORP	COM	89147L886	310	12,700	SH		DFND		12,700	0	0
TORTOISE MIDSTRM ENERGY FD I	COM	89148B200	206	8,004	SH		DFND		8,004	0	0
UNITED STS OIL FD LP	UNITS	91232N207	35	50,000	SH	Put	DFND		50,000	0	0
VISTRA CORP	COM	92840M102	796	45,000	SH		DFND		45,000	0	0
VOYA PRIME RATE TR	SH BEN INT	92913A100	125	27,013	SH		DFND		27,013	0	0
WELLS FARGO ADVANTAGE INCOME	WF INC OPPTY FD	94987B105	141	16,700	SH		DFND		16,700	0	0
WELLS FARGO GLOBAL DIVID OPP	COM	94987C103	176	33,480	SH		DFND		33,480	0	0
WESTERN ASSET / CLAYMORE INF	COM	95766R104	1,424	117,112	SH		DFND		117,112	0	0