W.R. Berkley Corporation 4.125% (WRB) 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
Estimated average burden
hours per response:		23.8

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
8I ENTERPRISES ACQUISITION CO	SHS	G2956M104	1,433	143,026	SH		SOLE		143,026	0	0
ACT II GLOBAL ACQUISITION CO	CL A SHS	G0080J104	1,829	180,779	SH		SOLE		180,779	0	0
ALBERTON ACQUISITION CORP	*W EXP 04/26/202	G35006124	12	198,484	SH		SOLE		198,484	0	0
ALBERTON ACQUISITION CORP	ORD SHS	G35006108	7,347	709,878	SH		SOLE		709,878	0	0
ALBERTON ACQUISITION CORP	RIGHT 10/04/2020	G35006132	26	118,055	SH		SOLE		118,055	0	0
ALLEGRO MERGER CORP	*W EXP 01/06/202	01749N111	20	113,799	SH		SOLE		113,799	0	0
ALLEGRO MERGER CORP	COM	01749N103	7,186	703,106	SH		SOLE		703,106	0	0
AMCI ACQUISITION CORP	CLASS A	00165R101	10,659	1,053,299	SH		SOLE		1,053,299	0	0
ANDINA ACQUISITION CORP III	RIGHT 07/31/2020	G04415132	28	98,774	SH		SOLE		98,774	0	0
ANDINA ACQUISITION CORP III	SHS	G04415108	4,941	486,803	SH		SOLE		486,803	0	0
ARQULE INC	COM	04269E107	1,186	59,400	SH		SOLE		59,400	0	0
ARQULE INC	COM	04269E107	1,184	59,300	SH	Put	SOLE		59,300	0	0
AUDENTES THERAPEUTICS INC	COM	05070R104	2,621	43,800	SH		SOLE		43,800	0	0
AUDENTES THERAPEUTICS INC	COM	05070R104	2,621	43,800	SH	Put	SOLE		43,800	0	0
B RILEY PRINCIPAL MERGER COR	CL A	05586Y106	3,527	352,346	SH		SOLE		352,346	0	0
BOXWOOD MERGER CORP	COM CL A	10319T101	1,007	99,149	SH		SOLE		99,149	0	0
CALLON PETE CO DEL	COM	13123X102	120	24,800	SH	Call	SOLE		24,800	0	0
CF FIN ACQUISITION CORP	COM CL A	12528N107	5,050	493,690	SH		SOLE		493,690	0	0
CHP MERGER CORP	UNIT 11/22/2024	12558Y205	401	39,400	SH		SOLE		39,400	0	0
CHURCHILL CAP CORP II	CL A	17143G106	3,453	334,429	SH		SOLE		334,429	0	0
CHURCHILL CAP CORP II	UNIT 99/99/9999	17143G205	320	29,668	SH		SOLE		29,668	0	0
CNA FINL CORP	COM	126117100	2,306	51,471	SH		SOLE		51,471	0	0
COLLIER CREEK HOLDINGS	COM CL A	G22707106	2,665	259,263	SH		SOLE		259,263	0	0
CRESCENT ACQUISITION CORP	COM CL A	22564L105	3,480	347,270	SH		SOLE		347,270	0	0
DD3 ACQUISITION CORP	SHS	G2692M103	385	37,648	SH		SOLE		37,648	0	0
DIAMOND EAGLE ACQUISITION CO	*W EXP 06/30/202	25258L117	31	13,130	SH		SOLE		13,130	0	0
DIAMOND EAGLE ACQUISITION CO	COM CL A	25258L109	454	42,465	SH		SOLE		42,465	0	0
DIAMOND OFFSHORE DRILLING IN	COM	25271C102	112	15,518	SH		SOLE		15,518	0	0
DISCOVERY INC	COM SER C	25470F302	3,693	121,120	SH		SOLE		121,120	0	0
EDTECHX HLDGS ACQUISITION CO	COM	28138X103	1,411	137,425	SH		SOLE		137,425	0	0
ENERGY TRANSFER LP	COM UT LTD PTN	29273V100	639	49,800	SH	Put	SOLE		49,800	0	0
ENTEGRA FINL CORP	COM	29363J108	323	10,700	SH		SOLE		10,700	0	0
FAR PT ACQUISITION CORP	COM CL A	30734W109	7,655	741,093	SH		SOLE		741,093	0	0
FORUM MERGER II CORP	CL A	34986F103	9,967	976,214	SH		SOLE		976,214	0	0
FOX CORP	CL B COM	35137L204	1,975	54,250	SH		SOLE		54,250	0	0
GALILEO ACQUISITION CORP	SHS	G3770A102	965	98,500	SH		SOLE		98,500	0	0
GIGCAPITAL2 INC	COM	375036100	2,463	248,050	SH		SOLE		248,050	0	0
GORDON POINTE ACQUISITION CO	COM CLASS A	382788107	5,767	544,597	SH		SOLE		544,597	0	0
GORES HOLDINGS III INC	CLASS A	38286G109	473	45,774	SH		SOLE		45,774	0	0
GORES METROPOULOS INC	COM CL A	382872109	1,004	99,219	SH		SOLE		99,219	0	0
GRAF INDL CORP	COM	384278107	13,478	1,322,661	SH		SOLE		1,322,661	0	0
GS ACQUISITION HLDGS CORP	COM CL A	36255F102	695	63,045	SH		SOLE		63,045	0	0
GX ACQUISITION CORP	COM CL A	36251A107	3,949	396,880	SH		SOLE		396,880	0	0
HAYMAKER ACQUISITION CORP II	COM CL A	42087L101	1,995	198,438	SH		SOLE		198,438	0	0
HEALTHCARE MERGER CORP	UNIT 12/17/2021	42227L201	516	49,906	SH		SOLE		49,906	0	0
HENNESSY CAP ACQUSTION CORP	CL A COM	42589C104	4,402	433,226	SH		SOLE		433,226	0	0
HL ACQUISITIONS CORP	SHS	G4603R106	2,575	249,276	SH		SOLE		249,276	0	0
KBL MERGER CORP IV	*W EXP 01/15/202	48242A112	11	143,476	SH		SOLE		143,476	0	0
LANDCADIA HLDGS II INC	CL A	51476X105	2,938	297,660	SH		SOLE		297,660	0	0
LEGACY ACQUISITION CORP	COM CL A	524643103	14,514	1,413,228	SH		SOLE		1,413,228	0	0
LEISURE ACQUISITION CORP	COM	52539T107	10,954	1,051,157	SH		SOLE		1,051,157	0	0
LEO HOLDINGS CORP	COM CL A	G5463L105	9,742	942,142	SH		SOLE		942,142	0	0
LF CAP ACQUISITION CORP	CL A	50200K108	4,739	457,419	SH		SOLE		457,419	0	0
LGL SYS ACQUISITION CORP	UNIT 10/24/2024	50201G205	2,512	246,250	SH		SOLE		246,250	0	0
LIV CAP ACQUISITION CORP	UNIT 99/99/9999	G5510C124	989	98,300	SH		SOLE		98,300	0	0
MEDICINES CO	COM	584688105	10,040	118,200	SH		SOLE		118,200	0	0
MEDICINES CO	COM	584688105	9,922	118,200	SH	Put	SOLE		118,200	0	0
MEGALITH FINL ACQUISITION CO	*W EXP 08/26/202	58518F117	49	153,761	SH		SOLE		153,761	0	0
MEGALITH FINL ACQUISITION CO	CL A COM	58518F109	7,735	753,871	SH		SOLE		753,871	0	0
MONOCLE ACQUISITION CORP	COM	609754106	758	74,415	SH		SOLE		74,415	0	0
MOSAIC ACQUISITION CORP	COM CL A	61946M100	17,123	1,664,873	SH		SOLE		1,664,873	0	0
MUDRICK CAP ACQUISITION CORP	COM CLASS A	624745105	9,603	929,384	SH		SOLE		929,384	0	0
NEBULA ACQUISITION CORP	COM CLASS A	629076100	9,067	860,223	SH		SOLE		860,223	0	0
NETFIN ACQUISITION CORP	*W EXP 08/01/202	G6455A115	74	247,480	SH		SOLE		247,480	0	0
NETFIN ACQUISITION CORP	SHS CL A	G6455A107	3,453	347,025	SH		SOLE		347,025	0	0
OAKTREE ACQUISITION CORP	*W EXP 99/99/999	G67145113	13	14,872	SH		SOLE		14,872	0	0
OAKTREE ACQUISITION CORP	SHS CL A	G67145105	734	74,361	SH		SOLE		74,361	0	0
OPES ACQUISITION CORP	*W EXP 03/13/202	68373P118	16	88,329	SH		SOLE		88,329	0	0
OPES ACQUISITION CORP	COM	68373P100	6,239	593,107	SH		SOLE		593,107	0	0
PIVOTAL INVT CORP II	*W EXP 06/01/202	72582K118	24	33,050	SH		SOLE		33,050	0	0
PIVOTAL INVT CORP II	COM CL A	72582K100	986	99,150	SH		SOLE		99,150	0	0
PROFICIENT ALPHA ACQUSTN COR	*W EXP 04/30/202	74317H113	15	99,220	SH		SOLE		99,220	0	0
PROFICIENT ALPHA ACQUSTN COR	COM	74317H105	2,988	297,025	SH		SOLE		297,025	0	0
PROFICIENT ALPHA ACQUSTN COR	RIGHT 04/30/2026	74317H121	18	99,220	SH		SOLE		99,220	0	0
PROPTECH ACQUISITION CORPORA	UNIT 10/01/2026	74349F200	1,513	147,750	SH		SOLE		147,750	0	0
PURE ACQUISITION CORP	*W EXP 04/17/202	74621Q114	372	377,160	SH		SOLE		377,160	0	0
PURE ACQUISITION CORP	CL A	74621Q106	18,690	1,802,276	SH		SOLE		1,802,276	0	0
RMG ACQUISITION CORP	*W EXP 02/21/202	749641114	28	45,241	SH		SOLE		45,241	0	0
RMG ACQUISITION CORP	CL A	749641106	3,441	344,750	SH		SOLE		344,750	0	0
ROYAL DUTCH SHELL PLC	SPONS ADR A	780259206	1,452	24,625	SH		SOLE		24,625	0	0
SC HEALTH CORP	COM CL A	G78516203	739	74,362	SH		SOLE		74,362	0	0
SCHULTZE SPL PURP ACQUSTN CO	COM	80821R109	7,633	754,287	SH		SOLE		754,287	0	0
SOFTWARE ACQUISITION GROUP I	UNIT 10/01/2026	83406B200	1,501	147,750	SH		SOLE		147,750	0	0
SPARTAN ENERGY ACQUISITON CO	CL A COM STK	846784106	12,645	1,243,570	SH		SOLE		1,243,570	0	0
THUNDER BRDG ACQUISTION II L	CL A SHS	G8857S116	978	98,300	SH		SOLE		98,300	0	0
TKK SYMPHONY ACQUISITION COR	ORD SHS	G88950103	13,069	1,276,774	SH		SOLE		1,276,774	0	0
TOTTENHAM ACQUISITION I LTD	SHS	G8959N106	1,467	140,021	SH		SOLE		140,021	0	0
TRIDENT ACQUISITIONS CORP	COM	89615T106	5,990	567,781	SH		SOLE		567,781	0	0
TRINE ACQUISITION CORP	COM CL A	89628U108	1,980	198,440	SH		SOLE		198,440	0	0
UNION ACQUISITION CORP II	SHS	G9402Q100	1,940	197,000	SH		SOLE		197,000	0	0
VECTOIQ ACQUISITION CORP	COM	92243N103	13,773	1,334,639	SH		SOLE		1,334,639	0	0
WEALTHBRIDGE ACQUISITION LTD	SHS	G4887W110	1,951	192,437	SH		SOLE		192,437	0	0
WR BERKLEY CORP	COM	084423102	17,578	254,382	SH		SOLE		254,382	0	0
KRAFT HEINZ	COM	500754106	40,163	1,250,000	SH		SOLE		1,250,000	0	0
VISTA OUTDOOR INC	COM	928377100	14,970	2,001,286	SH		SOLE		2,001,286	0	0
EXXON MOBIL CORP	COM	30231G102	21,538	308,650	SH		SOLE		308,650	0	0
HEALTHEQUITY INC	COM	42226A107	1,985	26,794	SH		SOLE		26,794	0	0
NUTRIEN LTD	COM	67077M108	20,941	437,080	SH		SOLE		437,080	0	0
VERIZON COMMUNICATIONS INC	COM	92343V104	9,681	157,666	SH		SOLE		157,666	0	0
VISTEON CORP	COM	92839U206	23,105	266,827	SH		SOLE		266,827	0	0