Cowen Prime Services 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
AT&T INC COM	Stock	00206R102	14	473	SH		SOLE		0	0	14
ABBOTT LABS COM	Stock	002824100	58	500	SH		SOLE		0	0	58
ABBVIE INC COM	Stock	00287Y109	34	304	SH		SOLE		0	0	34
ACCELERATE DIAGNOSTICS INC NOTE 2.500 3/1	Stock	00430HAB8	4,894	7,580,000	SH		SOLE		0	0	4,894
ACCURAY INC COM	Stock	004397105	772	170,882	SH		SOLE		0	0	772
ADVANCED MICRO DEVICES INC COM	Stock	007903107	47	500	SH		SOLE		0	0	47
ALIBABA GROUP HLDG LTD SPONSORED ADS	Stock	01609W102	45	200	SH		SOLE		0	0	45
ALPHABET INC CAP STK CL C	Stock	02079K107	351	140	SH		SOLE		0	0	351
ALPHABET INC CAP STK CL A	Stock	02079K305	98	40	SH		SOLE		0	0	98
ALTRIA GROUP INC COM	Stock	02209S103	72	1,500	SH		SOLE		0	0	72
AMERICAN ELEC PWR CO INC COM	Stock	025537101	38	450	SH		SOLE		0	0	38
AMERICAN EXPRESS CO COM	Stock	025816109	33	200	SH		SOLE		0	0	33
ANALOG DEVICES INC COM	Stock	032654105	1,592	9,250	SH		SOLE		0	0	1,592
ANNALY CAPITAL MANAGEMENT IN COM	Stock	035710409	111	12,500	SH		SOLE		0	0	111
APA CORPORATION COM	Stock	03743Q108	10	450	SH		SOLE		0	0	10
APOLLO GLOBAL MGMT INC COM CL A	Stock	03768E105	3,286	52,830	SH		SOLE		0	0	3,286
APPLE INC COM	Stock	037833100	490	3,580	SH		SOLE		0	0	490
APYX MEDICAL CORPORATION COM	Stock	03837C106	2,567	248,959	SH		SOLE		0	0	2,567
ARES CAPITAL CORP COM	Stock	04010L103	294	15,000	SH		SOLE		0	0	294
ASPEN AEROGELS INC COM	Stock	04523Y105	13,739	459,200	SH		SOLE		0	0	13,739
ASTRAZENECA PLC SPONSORED ADR	Stock	046353108	3,212	53,620	SH		SOLE		0	0	3,212
BAKER HUGHES COMPANY CL A	Stock	05722G100	7	300	SH		SOLE		0	0	7
BK OF AMERICA CORP COM	Stock	060505104	31	760	SH		SOLE		0	0	31
BANK MONTREAL QUE COM	Stock	063671101	77	753	SH		SOLE		0	0	77
BARRICK GOLD CORP COM	Stock	067901108	21	1,000	SH		SOLE		0	0	21
BAUSCH HEALTH COS INC COM	Stock	071734107	1	26	SH		SOLE		0	0	1
BERKSHIRE HATHAWAY INC DEL CL B NEW	Stock	084670702	3,673	13,215	SH		SOLE		0	0	3,673
BLACKSTONE GROUP INC COM	Stock	09260D107	447	4,600	SH		SOLE		0	0	447
BRISTOL-MYERS SQUIBB CO COM	Stock	110122108	140	2,100	SH		SOLE		0	0	140
CASTLIGHT HEALTH INC CL B	Stock	14862Q100	10	3,700	SH		SOLE		0	0	10
CEVA INC COM	Stock	157210105	1,214	25,656	SH		SOLE		0	0	1,214
CISCO SYS INC COM	Stock	17275R102	5	100	SH		SOLE		0	0	5
CITIGROUP INC COM NEW	Stock	172967424	2	35	SH		SOLE		0	0	2
COCA COLA CO COM	Stock	191216100	54	1,000	SH		SOLE		0	0	54
COLGATE PALMOLIVE CO COM	Stock	194162103	28	350	SH		SOLE		0	0	28
COMSCORE INC COM	Stock	20564W105	8,201	1,640,200	SH		SOLE		0	0	8,201
CORNING INC COM	Stock	219350105	55	1,350	SH		SOLE		0	0	55
CORTEVA INC COM	Stock	22052L104	409	9,216	SH		SOLE		0	0	409
CROWN CASTLE INTL CORP NEW COM	Stock	22822V101	1,960	10,045	SH		SOLE		0	0	1,960
DCP MIDSTREAM LP COM UT LTD PTN	Stock	23311P100	49	1,600	SH		SOLE		0	0	49
DXC TECHNOLOGY CO COM	Stock	23355L106	1	16	SH		SOLE		0	0	1
DARDEN RESTAURANTS INC COM	Stock	237194105	37	250	SH		SOLE		0	0	37
DEERE & CO COM	Stock	244199105	529	1,500	SH		SOLE		0	0	529
DIGIMARC CORP NEW COM	Stock	25381B101	5,531	165,093	SH		SOLE		0	0	5,531
DOMINION ENERGY INC COM	Stock	25746U109	59	800	SH		SOLE		0	0	59
DOW INC COM	Stock	260557103	1,532	24,216	SH		SOLE		0	0	1,532
DUPONT DE NEMOURS INC COM	Stock	26614N102	1,382	17,849	SH		SOLE		0	0	1,382
DURECT CORP COM	Stock	266605104	138	84,678	SH		SOLE		0	0	138
EATON VANCE TAX-MANAGED GLOB COM	Stock	27829F108	28	2,700	SH		SOLE		0	0	28
EBAY INC. COM	Stock	278642103	70	1,000	SH		SOLE		0	0	70
EHEALTH INC COM	Stock	28238P109	24	405	SH		SOLE		0	0	24
EMERSON ELEC CO COM	Stock	291011104	87	900	SH		SOLE		0	0	87
EMPIRE ST RLTY OP L P UNIT LTD PRTNSP	Stock	292102100	155	12,904	SH		SOLE		0	0	155
ENTERPRISE PRODS PARTNERS L COM	Stock	293792107	1,788	74,080	SH		SOLE		0	0	1,788
EVERSPIN TECHNOLOGIES INC COM	Stock	30041T104	24	3,750	SH		SOLE		0	0	24
EXELON CORP COM	Stock	30161N101	950	21,450	SH		SOLE		0	0	950
EXXON MOBIL CORP COM	Stock	30231G102	213	3,370	SH		SOLE		0	0	213
FRANCHISE GROUP INC COM	Stock	35180X105	10,978	311,250	SH		SOLE		0	0	10,978
GTY TECHNOLOGY HOLDINGS INC COM	Stock	362409104	7,648	1,075,650	SH		SOLE		0	0	7,648
GSI TECHNOLOGY INC COM	Stock	36241U106	940	167,177	SH		SOLE		0	0	940
GANNETT CO INC COM	Stock	36472T109	741	134,900	SH		SOLE		0	0	741
GENERAL ELECTRIC CO COM	Stock	369604103	181	13,470	SH		SOLE		0	0	181
GLOBAL PARTNERS LP COM UNITS	Stock	37946R109	108	4,150	SH		SOLE		0	0	108
GOLUB CAP BDC INC COM	Stock	38173M102	254	16,500	SH		SOLE		0	0	254
GREENLANE HLDGS INC CL A	Stock	395330103	9	2,100	SH		SOLE		0	0	9
HTG MOLECULAR DIAGNOSTICS IN COM NEW	Stock	40434H203	3,314	570,333	SH		SOLE		0	0	3,314
HP INC COM	Stock	40434L105	6	200	SH		SOLE		0	0	6
HALLIBURTON CO COM	Stock	406216101	2	100	SH		SOLE		0	0	2
HARMONIC INC COM	Stock	413160102	3,150	369,694	SH		SOLE		0	0	3,150
HEALTHPEAK PROPERTIES INC COM	Stock	42250P103	266	8,000	SH		SOLE		0	0	266
HELMERICH & PAYNE INC COM	Stock	423452101	10	300	SH		SOLE		0	0	10
HEWLETT PACKARD ENTERPRISE C COM	Stock	42824C109	3	200	SH		SOLE		0	0	3
INFINERA CORP NOTE 2.125 9/0	Stock	45667GAC7	1,565	1,280,000	SH		SOLE		0	0	1,565
INGERSOLL RAND INC COM	Stock	45687V106	80	1,632	SH		SOLE		0	0	80
INOVALON HLDGS INC COM CL A	Stock	45781D101	13,141	385,600	SH		SOLE		0	0	13,141
INSPIRED ENTMT INC COM	Stock	45782N108	638	50,000	SH		SOLE		0	0	638
INTEL CORP COM	Stock	458140100	101	1,800	SH		SOLE		0	0	101
INTERNATIONAL BUSINESS MACHS COM	Stock	459200101	787	5,370	SH		SOLE		0	0	787
INTERNATIONAL FLAVORS&FRAGRA COM	Stock	459506101	2,062	13,805	SH		SOLE		0	0	2,062
ITERIS INC NEW COM	Stock	46564T107	10,618	1,596,750	SH		SOLE		0	0	10,618
JPMORGAN CHASE & CO COM	Stock	46625H100	217	1,395	SH		SOLE		0	0	217
JOHNSON & JOHNSON COM	Stock	478160104	3,008	18,260	SH		SOLE		0	0	3,008
KKR & CO INC COM	Stock	48251W104	3,069	51,800	SH		SOLE		0	0	3,069
KALEYRA INC COM	Stock	483379103	24	2,000	SH		SOLE		0	0	24
KIMBERLY-CLARK CORP COM	Stock	494368103	120	900	SH		SOLE		0	0	120
KINDER MORGAN INC DEL COM	Stock	49456B101	295	16,180	SH		SOLE		0	0	295
KOPIN CORP COM	Stock	500600101	1,692	206,900	SH		SOLE		0	0	1,692
LANTHEUS HLDGS INC COM	Stock	516544103	293	10,600	SH		SOLE		0	0	293
LEIDOS HOLDINGS INC COM	Stock	525327102	1,625	16,070	SH		SOLE		0	0	1,625
LENNAR CORP CL A	Stock	526057104	149	1,500	SH		SOLE		0	0	149
LENNAR CORP CL B	Stock	526057302	2	30	SH		SOLE		0	0	2
LOCKHEED MARTIN CORP COM	Stock	539830109	151	400	SH		SOLE		0	0	151
LOWES COS INC COM	Stock	548661107	66	340	SH		SOLE		0	0	66
LUMINEX CORP DEL COM	Stock	55027E102	6,223	169,103	SH		SOLE		0	0	6,223
MPLX LP COM UNIT REP LTD	Stock	55336V100	168	5,674	SH		SOLE		0	0	168
MACOM TECH SOLUTIONS HLDGS I COM	Stock	55405Y100	2,737	42,708	SH		SOLE		0	0	2,737
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP	Stock	559080106	1,702	34,800	SH		SOLE		0	0	1,702
MCDONALDS CORP COM	Stock	580135101	153	661	SH		SOLE		0	0	153
MERCK & CO INC COM	Stock	58933Y105	31	400	SH		SOLE		0	0	31
MERCURY SYS INC COM	Stock	589378108	7	100	SH		SOLE		0	0	7
METLIFE INC COM	Stock	59156R108	278	4,650	SH		SOLE		0	0	278
MICROSOFT CORP COM	Stock	594918104	2,404	8,875	SH		SOLE		0	0	2,404
MORGAN STANLEY COM NEW	Stock	617446448	29	318	SH		SOLE		0	0	29
NVE CORP COM NEW	Stock	629445206	877	11,837	SH		SOLE		0	0	877
NATIONAL RESH CORP COM NEW	Stock	637372202	321	7,000	SH		SOLE		0	0	321
NATIONAL RETAIL PROPERTIES I COM	Stock	637417106	47	1,000	SH		SOLE		0	0	47
NEOGEN CORP COM	Stock	640491106	962	20,900	SH		SOLE		0	0	962
NEOGENOMICS INC COM NEW	Stock	64049M209	1,197	26,500	SH		SOLE		0	0	1,197
NEPHROS INC COM	Stock	640671400	6,358	626,450	SH		SOLE		0	0	6,358
NEW RESIDENTIAL INVT CORP COM NEW	Stock	64828T201	17	1,600	SH		SOLE		0	0	17
NORTHROP GRUMMAN CORP COM	Stock	666807102	164	450	SH		SOLE		0	0	164
NOVARTIS AG SPONSORED ADR	Stock	66987V109	9	100	SH		SOLE		0	0	9
NOVO-NORDISK A S ADR	Stock	670100205	272	3,250	SH		SOLE		0	0	272
NUTANIX INC CL A	Stock	67059N108	670	17,530	SH		SOLE		0	0	670
OCCIDENTAL PETE CORP W EXP 08/03/202	Stock	674599162	1	68	SH		SOLE		0	0	1
ORACLE CORP COM	Stock	68389X105	31	394	SH		SOLE		0	0	31
ORBITAL ENERGY GROUP INC COM	Stock	68559A109	1,118	255,863	SH		SOLE		0	0	1,118
ORGANON & CO COMMON STOCK	Stock	68622V106	1	40	SH		SOLE		0	0	1
OXFORD SQUARE CAP CORP COM	Stock	69181V107	7	1,400	SH		SOLE		0	0	7
PDF SOLUTIONS INC COM	Stock	693282105	34,352	1,889,528	SH		SOLE		0	0	34,352
PTC INC COM	Stock	69370C100	2,232	15,800	SH		SOLE		0	0	2,232
PAYCHEX INC COM	Stock	704326107	193	1,800	SH		SOLE		0	0	193
PAYPAL HLDGS INC COM	Stock	70450Y103	301	1,034	SH		SOLE		0	0	301
PENN NATL GAMING INC COM	Stock	707569109	11	150	SH		SOLE		0	0	11
PEPSICO INC COM	Stock	713448108	34	230	SH		SOLE		0	0	34
PFIZER INC COM	Stock	717081103	2,828	72,225	SH		SOLE		0	0	2,828
PHARMING GROUP NV SPON ADS	Stock	71716E105	71	6,300	SH		SOLE		0	0	71
PHILIP MORRIS INTL INC COM	Stock	718172109	99	1,000	SH		SOLE		0	0	99
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN	Stock	726503105	39	3,400	SH		SOLE		0	0	39
PROCTER AND GAMBLE CO COM	Stock	742718109	67	500	SH		SOLE		0	0	67
QUOTIENT TECHNOLOGY INC COM	Stock	749119103	31,626	2,925,600	SH		SOLE		0	0	31,626
RECRO PHARMA INC COM	Stock	75629F109	6,383	2,763,400	SH		SOLE		0	0	6,383
RESEARCH SOLUTIONS INC COM	Stock	761025105	4,000	1,398,500	SH		SOLE		0	0	4,000
RIBBON COMMUNICATIONS INC COM	Stock	762544104	1,071	140,719	SH		SOLE		0	0	1,071
ROYAL DUTCH SHELL PLC SPONS ADR A	Stock	780259206	5	112	SH		SOLE		0	0	5
SPDR GOLD TR GOLD SHS	Stock	78463V107	3	20	SH		SOLE		0	0	3
SCHLUMBERGER LTD COM STK	Stock	806857108	27	835	SH		SOLE		0	0	27
SCHWEITZER-MAUDUIT INTL INC COM	Stock	808541106	16	400	SH		SOLE		0	0	16
SEMPRA ENERGY COM	Stock	816851109	106	800	SH		SOLE		0	0	106
STARBUCKS CORP COM	Stock	855244109	2,447	21,885	SH		SOLE		0	0	2,447
SUBURBAN PROPANE PARTNERS L UNIT LTD PARTN	Stock	864482104	77	5,013	SH		SOLE		0	0	77
SYNCHRONOSS TECHNOLOGIES INC COM	Stock	87157B103	146	40,600	SH		SOLE		0	0	146
SYSCO CORP COM	Stock	871829107	14	185	SH		SOLE		0	0	14
TARGA RES CORP COM	Stock	87612G101	22	496	SH		SOLE		0	0	22
TEVA PHARMACEUTICAL INDS LTD SPONSORED ADS	Stock	881624209	805	81,294	SH		SOLE		0	0	805
TEXAS INSTRS INC COM	Stock	882508104	579	3,012	SH		SOLE		0	0	579
3-D SYS CORP DEL COM NEW	Stock	88554D205	4,958	124,050	SH		SOLE		0	0	4,958
TRANSACT TECHNOLOGIES INC COM	Stock	892918103	3,468	252,567	SH		SOLE		0	0	3,468
UNILEVER PLC SPON ADR NEW	Stock	904767704	85	1,445	SH		SOLE		0	0	85
UNITED PARCEL SERVICE INC CL B	Stock	911312106	62	300	SH		SOLE		0	0	62
UNITEDHEALTH GROUP INC COM	Stock	91324P102	200	500	SH		SOLE		0	0	200
VERIZON COMMUNICATIONS INC COM	Stock	92343V104	127	2,263	SH		SOLE		0	0	127
VOLITIONRX LTD COM	Stock	928661107	195	59,200	SH		SOLE		0	0	195
VONAGE HLDGS CORP COM	Stock	92886T201	13,635	946,200	SH		SOLE		0	0	13,635
VONAGE HLDGS CORP NOTE 1.750 6/0	Stock	92886TAJ1	2,642	2,370,000	SH		SOLE		0	0	2,642
WABTEC COM	Stock	929740108	6	69	SH		SOLE		0	0	6
WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT	Stock	958669103	82	3,813	SH		SOLE		0	0	82
WILLIAMS COS INC COM	Stock	969457100	27	1,000	SH		SOLE		0	0	27
ALLEGION PLC ORD SHS	Stock	G0176J109	93	666	SH		SOLE		0	0	93
GAN LTD SHS	Stock	G3728V109	1,355	82,400	SH		SOLE		0	0	1,355
SEAGATE TECHNOLOGY HLDNGS PL ORD SHS	Stock	G7997R103	13	150	SH		SOLE		0	0	13
TRANE TECHNOLOGIES PLC SHS	Stock	G8994E103	341	1,850	SH		SOLE		0	0	341
ALCON AG ORD SHS	Stock	H01301128	1	20	SH		SOLE		0	0	1
ALLOT LTD SHS	Stock	M0854Q105	309	15,600	SH		SOLE		0	0	309
COGNYTE SOFTWARE LTD ORD SHS	Stock	M25133105	5	200	SH		SOLE		0	0	5
KORNIT DIGITAL LTD SHS	Stock	M6372Q113	6,464	51,994	SH		SOLE		0	0	6,464
RADA ELECTR INDS LTD COM PAR NEW	Stock	M81863124	280	23,000	SH		SOLE		0	0	280