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	9	223	SH		SOLE		0	0	9
ABBVIE INC COM	Stock	00287Y109	27	300	SH		SOLE		0	0	27
ALIBABA GROUP HLDG LTD SPONSORED ADS	Stock	01609W102	42	200	SH		SOLE		0	0	42
ALPHABET INC CAP STK CL C	Stock	02079K107	187	140	SH		SOLE		0	0	187
ALPHABET INC CAP STK CL A	Stock	02079K305	54	40	SH		SOLE		0	0	54
ALTRIA GROUP INC COM	Stock	02209S103	75	1,500	SH		SOLE		0	0	75
APOLLO GLOBAL MGMT INC COM CL A	Stock	03768E105	286	6,000	SH		SOLE		0	0	286
APYX MED CORP COM	Stock	03837C106	2,415	285,414	SH		SOLE		0	0	2,415
ARCTURUS THERAPEUTICS HLDG I COM	Stock	03969T109	9	800	SH		SOLE		0	0	9
ARES CAP CORP COM	Stock	04010L103	198	10,600	SH		SOLE		0	0	198
ASPEN AEROGELS INC COM	Stock	04523Y105	6,279	809,192	SH		SOLE		0	0	6,279
BAKER HUGHES COMPANY CL A	Stock	05722G100	8	300	SH		SOLE		0	0	8
BLACKSTONE GROUP INC COM CL A	Stock	09260D107	425	7,600	SH		SOLE		0	0	425
BOINGO WIRELESS INC COM	Stock	09739C102	124	11,300	SH		SOLE		0	0	124
BOSTON OMAHA CORP COM	Stock	101044105	577	27,444	SH		SOLE		0	0	577
BRISTOL MYERS SQUIBB CO COM	Stock	110122108	135	2,100	SH		SOLE		0	0	135
CUI GLOBAL INC COM NEW	Stock	126576206	232	210,788	SH		SOLE		0	0	232
CASTLIGHT HEALTH INC CL B	Stock	14862Q100	22	16,856	SH		SOLE		0	0	22
CEVA INC COM	Stock	157210105	747	27,721	SH		SOLE		0	0	747
CHAMPIONS ONCOLOGY INC COM NEW	Stock	15870P307	1,279	153,500	SH		SOLE		0	0	1,279
CHEVRON CORP NEW COM	Stock	166764100	1,314	10,900	SH		SOLE		0	0	1,314
CHROMADEX CORP COM NEW	Stock	171077407	9	2,200	SH		SOLE		0	0	9
CISCO SYS INC COM	Stock	17275R102	5	100	SH		SOLE		0	0	5
CITIGROUP INC COM NEW	Stock	172967424	3	35	SH		SOLE		0	0	3
COCA COLA CO COM	Stock	191216100	55	1,000	SH		SOLE		0	0	55
COLGATE PALMOLIVE CO COM	Stock	194162103	24	350	SH		SOLE		0	0	24
COMSCORE INC COM	Stock	20564W105	2,736	553,900	SH		SOLE		0	0	2,736
CORNING INC COM	Stock	219350105	44	1,500	SH		SOLE		0	0	44
CORTEVA INC COM	Stock	22052L104	401	13,549	SH		SOLE		0	0	401
CROWN CASTLE INTL CORP NEW COM	Stock	22822V101	2,294	16,135	SH		SOLE		0	0	2,294
DCP MIDSTREAM LP COM UT LTD PTN	Stock	23311P100	39	1,600	SH		SOLE		0	0	39
DXC TECHNOLOGY CO COM	Stock	23355L106	1	16	SH		SOLE		0	0	1
DARDEN RESTAURANTS INC COM	Stock	237194105	27	250	SH		SOLE		0	0	27
DEERE & CO COM	Stock	244199105	260	1,500	SH		SOLE		0	0	260
DELTA AIR LINES INC DEL COM NEW	Stock	247361702	2,335	39,920	SH		SOLE		0	0	2,335
DIGIMARC CORP NEW COM	Stock	25381B101	5,090	151,669	SH		SOLE		0	0	5,090
DOMINION ENERGY INC COM	Stock	25746U109	66	800	SH		SOLE		0	0	66
DOW INC COM	Stock	260557103	742	13,549	SH		SOLE		0	0	742
DUPONT DE NEMOURS INC COM	Stock	26614N102	3,713	57,842	SH		SOLE		0	0	3,713
DURECT CORP COM	Stock	266605104	333	87,728	SH		SOLE		0	0	333
EOG RES INC COM	Stock	26875P101	25	300	SH		SOLE		0	0	25
EATON VANCE TAX MNGD GBL DV COM	Stock	27829F108	24	2,700	SH		SOLE		0	0	24
EBAY INC COM	Stock	278642103	36	1,000	SH		SOLE		0	0	36
EHEALTH INC COM	Stock	28238P109	4,213	43,846	SH		SOLE		0	0	4,213
EMERSON ELEC CO COM	Stock	291011104	76	1,000	SH		SOLE		0	0	76
EMPIRE ST RLTY OP L P UNIT LTD PRTNSP	Stock	292102100	180	12,904	SH		SOLE		0	0	180
ENTERPRISE PRODS PARTNERS L COM	Stock	293792107	1,973	70,080	SH		SOLE		0	0	1,973
EVENTBRITE INC COM CL A	Stock	29975E109	336	16,650	SH		SOLE		0	0	336
EVERSPIN TECHNOLOGIES INC COM	Stock	30041T104	21	4,000	SH		SOLE		0	0	21
EXACT SCIENCES CORP COM	Stock	30063P105	83	900	SH		SOLE		0	0	83
EXELON CORP COM	Stock	30161N101	613	13,450	SH		SOLE		0	0	613
EXP WORLD HOLDINGS INC COM	Stock	30212W100	5	400	SH		SOLE		0	0	5
EXXON MOBIL CORP COM	Stock	30231G102	396	5,670	SH		SOLE		0	0	396
FORMFACTOR INC COM	Stock	346375108	47	1,795	SH		SOLE		0	0	47
GW PHARMACEUTICALS PLC ADS	Stock	36197T103	3	25	SH		SOLE		0	0	3
GSI TECHNOLOGY COM	Stock	36241U106	726	102,373	SH		SOLE		0	0	726
GANNETT CO INC NEW COM	Stock	36472T109	966	151,400	SH		SOLE		0	0	966
GENERAL ELECTRIC CO COM	Stock	369604103	167	14,970	SH		SOLE		0	0	167
GLOBAL PARTNERS LP COM UNITS	Stock	37946R109	84	4,150	SH		SOLE		0	0	84
GREENLANE HLDGS INC CL A	Stock	395330103	3	1,000	SH		SOLE		0	0	3
GREENSKY INC CL A	Stock	39572G100	18	2,000	SH		SOLE		0	0	18
HTG MOLECULAR DIAGNOSTICS IN COM	Stock	40434H104	1,501	2,137,900	SH		SOLE		0	0	1,501
HP INC COM	Stock	40434L105	4	200	SH		SOLE		0	0	4
HALLIBURTON CO COM	Stock	406216101	2	100	SH		SOLE		0	0	2
HARMONIC INC COM	Stock	413160102	2,960	379,450	SH		SOLE		0	0	2,960
HARMONIC INC NOTE 4.000 12/0	Stock	413160AB8	15	10,000	SH		SOLE		0	0	15
HEALTHPEAK PPTYS INC COM	Stock	42250P103	276	8,000	SH		SOLE		0	0	276
HELMERICH & PAYNE INC COM	Stock	423452101	36	800	SH		SOLE		0	0	36
HEWLETT PACKARD ENTERPRISE C COM	Stock	42824C109	3	200	SH		SOLE		0	0	3
HIMAX TECHNOLOGIES INC SPONSORED ADR	Stock	43289P106	11	4,000	SH		SOLE		0	0	11
INFINERA CORPORATION NOTE 2.125 9/0	Stock	45667GAC7	5,605	5,310,000	SH		SOLE		0	0	5,605
INOVALON HLDGS INC COM CL A	Stock	45781D101	19,174	1,018,784	SH		SOLE		0	0	19,174
INTEL CORP COM	Stock	458140100	108	1,800	SH		SOLE		0	0	108
INTERNATIONAL BUSINESS MACHS COM	Stock	459200101	654	4,882	SH		SOLE		0	0	654
ITERIS INC COM	Stock	46564T107	11,064	2,217,292	SH		SOLE		0	0	11,064
JPMORGAN CHASE & CO COM	Stock	46625H100	1,579	11,329	SH		SOLE		0	0	1,579
JOHNSON & JOHNSON COM	Stock	478160104	2,662	18,252	SH		SOLE		0	0	2,662
KKR & CO INC CL A	Stock	48251W104	3,378	115,820	SH		SOLE		0	0	3,378
KIMBERLY CLARK CORP COM	Stock	494368103	124	900	SH		SOLE		0	0	124
KINDER MORGAN INC DEL COM	Stock	49456B101	343	16,198	SH		SOLE		0	0	343
KOPIN CORP COM	Stock	500600101	121	301,118	SH		SOLE		0	0	121
LEIDOS HLDGS INC COM	Stock	525327102	1,664	17,000	SH		SOLE		0	0	1,664
LENNAR CORP CL A	Stock	526057104	84	1,500	SH		SOLE		0	0	84
LENNAR CORP CL B	Stock	526057302	1	30	SH		SOLE		0	0	1
LOCKHEED MARTIN CORP COM	Stock	539830109	156	400	SH		SOLE		0	0	156
LOWES COS INC COM	Stock	548661107	41	340	SH		SOLE		0	0	41
LUMINEX CORP DEL COM	Stock	55027E102	5,395	232,955	SH		SOLE		0	0	5,395
MPLX LP COM UNIT REP LTD	Stock	55336V100	144	5,674	SH		SOLE		0	0	144
MACOM TECH SOLUTIONS HLDGS I COM	Stock	55405Y100	1,614	60,658	SH		SOLE		0	0	1,614
MACERICH CO COM	Stock	554382101	7	260	SH		SOLE		0	0	7
MACQUARIE INFRASTRUCTURE COR COM	Stock	55608B105	214	5,000	SH		SOLE		0	0	214
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP	Stock	559080106	2,188	34,800	SH		SOLE		0	0	2,188
MAGNOLIA OIL & GAS CORP CL A	Stock	559663109	1	50	SH		SOLE		0	0	1
MCDONALDS CORP COM	Stock	580135101	131	661	SH		SOLE		0	0	131
MERCK & CO INC COM	Stock	58933Y105	36	400	SH		SOLE		0	0	36
METLIFE INC COM	Stock	59156R108	237	4,650	SH		SOLE		0	0	237
MICROSOFT CORP COM	Stock	594918104	1,644	10,425	SH		SOLE		0	0	1,644
MICROVISION INC DEL COM NEW	Stock	594960304	6	8,900	SH		SOLE		0	0	6
MOBILEIRON INC COM NEW	Stock	60739U204	6,764	1,391,750	SH		SOLE		0	0	6,764
MONDELEZ INTL INC CL A	Stock	609207105	99	1,800	SH		SOLE		0	0	99
MORGAN STANLEY COM NEW	Stock	617446448	11	218	SH		SOLE		0	0	11
NIC INC COM	Stock	62914B100	637	28,500	SH		SOLE		0	0	637
NVE CORP COM NEW	Stock	629445206	795	11,137	SH		SOLE		0	0	795
NATIONAL RESH CORP COM NEW	Stock	637372202	923	14,000	SH		SOLE		0	0	923
NATIONAL RETAIL PPTYS INC COM	Stock	637417106	54	1,000	SH		SOLE		0	0	54
NEOGEN CORP COM	Stock	640491106	704	10,790	SH		SOLE		0	0	704
NEOGENOMICS INC COM NEW	Stock	64049M209	9,641	329,596	SH		SOLE		0	0	9,641
NEW RESIDENTIAL INVT CORP COM NEW	Stock	64828T201	35	2,200	SH		SOLE		0	0	35
NOKIA CORP SPONSORED ADR	Stock	654902204	1	166	SH		SOLE		0	0	1
NORTHROP GRUMMAN CORP COM	Stock	666807102	155	450	SH		SOLE		0	0	155
NOVARTIS A G SPONSORED ADR	Stock	66987V109	9	100	SH		SOLE		0	0	9
NOVO-NORDISK A S ADR	Stock	670100205	188	3,250	SH		SOLE		0	0	188
NUSTAR ENERGY LP UNIT COM	Stock	67058H102	120	4,630	SH		SOLE		0	0	120
NUTANIX INC CL A	Stock	67059N108	593	18,980	SH		SOLE		0	0	593
OCCIDENTAL PETE CORP COM	Stock	674599105	23	550	SH		SOLE		0	0	23
ORACLE CORP COM	Stock	68389X105	21	394	SH		SOLE		0	0	21
OXFORD SQUARE CAP CORP COM	Stock	69181V107	13	2,400	SH		SOLE		0	0	13
PDF SOLUTIONS INC COM	Stock	693282105	23,123	1,369,040	SH		SOLE		0	0	23,123
PRGX GLOBAL INC COM NEW	Stock	69357C503	25	5,166	SH		SOLE		0	0	25
PTC INC COM	Stock	69370C100	1,517	20,250	SH		SOLE		0	0	1,517
PAYCHEX INC COM	Stock	704326107	153	1,800	SH		SOLE		0	0	153
PAYPAL HLDGS INC COM	Stock	70450Y103	112	1,034	SH		SOLE		0	0	112
PEPSICO INC COM	Stock	713448108	161	1,175	SH		SOLE		0	0	161
PFIZER INC COM	Stock	717081103	3,075	78,475	SH		SOLE		0	0	3,075
PHILIP MORRIS INTL INC COM	Stock	718172109	85	1,000	SH		SOLE		0	0	85
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN	Stock	726503105	63	3,400	SH		SOLE		0	0	63
PORTFOLIO RECOVERY ASSOCS IN NOTE 3.000 8/0	Stock	73640QAB1	10	10,000	SH		SOLE		0	0	10
PROCTER & GAMBLE CO COM	Stock	742718109	62	500	SH		SOLE		0	0	62
QUOTIENT TECHNOLOGY INC COM	Stock	749119103	19,672	1,995,124	SH		SOLE		0	0	19,672
REDFIN CORP COM	Stock	75737F108	1,010	47,800	SH		SOLE		0	0	1,010
RIBBON COMMUNICATIONS INC COM	Stock	762544104	580	187,220	SH		SOLE		0	0	580
ROYAL DUTCH SHELL PLC SPONS ADR A	Stock	780259206	7	112	SH		SOLE		0	0	7
RUBICON PROJ INC COM	Stock	78112V102	10,363	1,270,000	SH		SOLE		0	0	10,363
SPDR GOLD TRUST GOLD SHS	Stock	78463V107	23	160	SH		SOLE		0	0	23
SCHLUMBERGER LTD COM	Stock	806857108	34	835	SH		SOLE		0	0	34
SCIENTIFIC GAMES CORP COM	Stock	80874P109	7,904	295,160	SH		SOLE		0	0	7,904
SEMPRA ENERGY COM	Stock	816851109	121	800	SH		SOLE		0	0	121
SOLITON INC COM	Stock	834251100	12	1,100	SH		SOLE		0	0	12
STARBUCKS CORP COM	Stock	855244109	2,144	24,385	SH		SOLE		0	0	2,144
STITCH FIX INC COM CL A	Stock	860897107	13	500	SH		SOLE		0	0	13
SUBURBAN PROPANE PARTNERS L UNIT LTD PARTN	Stock	864482104	110	5,013	SH		SOLE		0	0	110
SYNACOR INC COM	Stock	871561106	350	230,514	SH		SOLE		0	0	350
SYNCHRONOSS TECHNOLOGIES INC COM	Stock	87157B103	16	3,300	SH		SOLE		0	0	16
SYSCO CORP COM	Stock	871829107	91	1,060	SH		SOLE		0	0	91
TARGA RES CORP COM	Stock	87612G101	18	434	SH		SOLE		0	0	18
TECHTARGET INC COM	Stock	87874R100	2,168	83,050	SH		SOLE		0	0	2,168
TEVA PHARMACEUTICAL INDS LTD SPONSORED ADS	Stock	881624209	797	81,294	SH		SOLE		0	0	797
TEXAS INSTRS INC COM	Stock	882508104	386	3,012	SH		SOLE		0	0	386
3-D SYS CORP DEL COM NEW	Stock	88554D205	1,333	152,300	SH		SOLE		0	0	1,333
TRANSACT TECHNOLOGIES INC COM	Stock	892918103	3,149	287,017	SH		SOLE		0	0	3,149
TRUECAR INC COM	Stock	89785L107	4	800	SH		SOLE		0	0	4
TYME TECHNOLOGIES INC COM	Stock	90238J103	7	5,000	SH		SOLE		0	0	7
UNILEVER PLC SPON ADR NEW	Stock	904767704	83	1,445	SH		SOLE		0	0	83
UNITED AIRLINES HLDGS INC COM	Stock	910047109	785	8,910	SH		SOLE		0	0	785
UNITED PARCEL SERVICE INC CL B	Stock	911312106	126	1,080	SH		SOLE		0	0	126
UNITEDHEALTH GROUP INC COM	Stock	91324P102	147	500	SH		SOLE		0	0	147
VANECK VECTORS ETF TRUST GOLD MINERS ETF	Stock	92189F106	88	3,000	SH		SOLE		0	0	88
VANECK VECTORS ETF TRUST JR GOLD MINERS E	Stock	92189F791	1	35	SH		SOLE		0	0	1
VANGUARD ADMIRAL FDS INC MIDCP 400 IDX	Stock	921932885	11	79	SH		SOLE		0	0	11
VERIZON COMMUNICATIONS INC COM	Stock	92343V104	139	2,263	SH		SOLE		0	0	139
VERU INC COM	Stock	92536C103	12	3,524	SH		SOLE		0	0	12
VILLAGE FARMS INTL INC COM	Stock	92707Y108	1	100	SH		SOLE		0	0	1
VOLITIONRX LTD COM	Stock	928661107	5	1,013	SH		SOLE		0	0	5
VONAGE HLDGS CORP COM	Stock	92886T201	8,302	1,120,425	SH		SOLE		0	0	8,302
WABTEC CORP COM	Stock	929740108	5	69	SH		SOLE		0	0	5
WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT	Stock	958669103	75	3,813	SH		SOLE		0	0	75
WEYERHAEUSER CO COM	Stock	962166104	977	32,350	SH		SOLE		0	0	977
WILLIAMS COS INC DEL COM	Stock	969457100	24	1,000	SH		SOLE		0	0	24
YUM BRANDS INC COM	Stock	988498101	30	300	SH		SOLE		0	0	30
ALLEGION PUB LTD CO ORD SHS	Stock	G0176J109	83	666	SH		SOLE		0	0	83
ALLERGAN PLC SHS	Stock	G0177J108	35	181	SH		SOLE		0	0	35
ATHENE HLDG LTD CL A	Stock	G0684D107	118	2,500	SH		SOLE		0	0	118
INGERSOLL-RAND PLC SHS	Stock	G47791101	246	1,850	SH		SOLE		0	0	246
NOBLE CORP PLC SHS USD	Stock	G65431101	1	800	SH		SOLE		0	0	1
ALCON INC ORD SHS	Stock	H01301128	1	20	SH		SOLE		0	0	1
ALLOT LTD SHS	Stock	M0854Q105	133	15,602	SH		SOLE		0	0	133
KORNIT DIGITAL LTD SHS	Stock	M6372Q113	2,096	61,244	SH		SOLE		0	0	2,096
RADA ELECTR INDS LTD COM PAR NEW	Stock	M81863124	8	1,500	SH		SOLE		0	0	8
INOVALON HLDGS INC CALL	CALL	45781D901	40	100	SH		SOLE		0	0	40