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	1	23	SH		SOLE		0	0	1
ABBVIE INC COM	Stock	00287Y109	23	300	SH		SOLE		0	0	23
ALIBABA GROUP HLDG LTD SPONSORED ADS	Stock	01609W102	33	200	SH		SOLE		0	0	33
ALPHABET INC CAP STK CL C	Stock	02079K107	171	140	SH		SOLE		0	0	171
ALPHABET INC CAP STK CL A	Stock	02079K305	49	40	SH		SOLE		0	0	49
ALTRIA GROUP INC COM	Stock	02209S103	61	1,500	SH		SOLE		0	0	61
APOLLO GLOBAL MGMT INC COM CL A	Stock	03768E105	38	1,000	SH		SOLE		0	0	38
APYX MED CORP COM	Stock	03837C106	1,854	273,905	SH		SOLE		0	0	1,854
ASPEN AEROGELS INC COM	Stock	04523Y105	3,627	612,692	SH		SOLE		0	0	3,627
BLACKSTONE GROUP INC COM CL A	Stock	09260D107	342	7,000	SH		SOLE		0	0	342
BOINGO WIRELESS INC COM	Stock	09739C102	125	11,300	SH		SOLE		0	0	125
BOSTON OMAHA CORP COM	Stock	101044105	544	27,444	SH		SOLE		0	0	544
BRISTOL MYERS SQUIBB CO COM	Stock	110122108	106	2,100	SH		SOLE		0	0	106
CUI GLOBAL INC COM NEW	Stock	126576206	172	203,468	SH		SOLE		0	0	172
CASTLIGHT HEALTH INC CL B	Stock	14862Q100	35	24,856	SH		SOLE		0	0	35
CEVA INC COM	Stock	157210105	805	26,971	SH		SOLE		0	0	805
CHEVRON CORP NEW COM	Stock	166764100	1,293	10,900	SH		SOLE		0	0	1,293
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
COMSCORE INC COM	Stock	20564W105	1,895	991,900	SH		SOLE		0	0	1,895
CORNING INC COM	Stock	219350105	33	1,150	SH		SOLE		0	0	33
CORTEVA INC COM	Stock	22052L104	398	14,215	SH		SOLE		0	0	398
CROWN CASTLE INTL CORP NEW COM	Stock	22822V101	2,111	15,185	SH		SOLE		0	0	2,111
DCP MIDSTREAM LP COM UT LTD PTN	Stock	23311P100	42	1,600	SH		SOLE		0	0	42
DARDEN RESTAURANTS INC COM	Stock	237194105	30	250	SH		SOLE		0	0	30
DEERE & CO COM	Stock	244199105	253	1,500	SH		SOLE		0	0	253
DELTA AIR LINES INC DEL COM NEW	Stock	247361702	1,706	29,610	SH		SOLE		0	0	1,706
DIGIMARC CORP NEW COM	Stock	25381B101	5,690	145,563	SH		SOLE		0	0	5,690
DOMINION ENERGY INC COM	Stock	25746U109	65	800	SH		SOLE		0	0	65
DOW INC COM	Stock	260557103	646	13,549	SH		SOLE		0	0	646
DUPONT DE NEMOURS INC COM	Stock	26614N102	2,238	31,385	SH		SOLE		0	0	2,238
DURECT CORP COM	Stock	266605104	161	87,228	SH		SOLE		0	0	161
EOG RES INC COM	Stock	26875P101	22	300	SH		SOLE		0	0	22
EATON VANCE TAX MNGD GBL DV COM	Stock	27829F108	22	2,700	SH		SOLE		0	0	22
EBAY INC COM	Stock	278642103	39	1,000	SH		SOLE		0	0	39
EHEALTH INC COM	Stock	28238P109	2,602	38,963	SH		SOLE		0	0	2,602
EMERSON ELEC CO COM	Stock	291011104	67	1,000	SH		SOLE		0	0	67
EMPIRE ST RLTY OP L P UNIT LTD PRTNSP	Stock	292102100	183	12,904	SH		SOLE		0	0	183
ENTERPRISE PRODS PARTNERS L COM	Stock	293792107	2,003	70,080	SH		SOLE		0	0	2,003
EVENTBRITE INC COM CL A	Stock	29975E109	295	16,650	SH		SOLE		0	0	295
EVERSPIN TECHNOLOGIES INC COM	Stock	30041T104	25	4,000	SH		SOLE		0	0	25
EXELON CORP COM	Stock	30161N101	650	13,450	SH		SOLE		0	0	650
EXXON MOBIL CORP COM	Stock	30231G102	400	5,670	SH		SOLE		0	0	400
FORMFACTOR INC COM	Stock	346375108	61	3,295	SH		SOLE		0	0	61
GW PHARMACEUTICALS PLC ADS	Stock	36197T103	3	25	SH		SOLE		0	0	3
GSI TECHNOLOGY COM	Stock	36241U106	778	88,757	SH		SOLE		0	0	778
GENERAL ELECTRIC CO COM	Stock	369604103	120	13,470	SH		SOLE		0	0	120
GENOMIC HEALTH INC COM	Stock	37244C101	136	2,000	SH		SOLE		0	0	136
GLOBAL PARTNERS LP COM UNITS	Stock	37946R109	81	4,150	SH		SOLE		0	0	81
GREENSKY INC CL A	Stock	39572G100	14	2,000	SH		SOLE		0	0	14
HCP INC COM	Stock	40414L109	285	8,000	SH		SOLE		0	0	285
HTG MOLECULAR DIAGNOSTICS IN COM	Stock	40434H104	66	100,000	SH		SOLE		0	0	66
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	2,368	359,935	SH		SOLE		0	0	2,368
HARMONIC INC NOTE 4.000 12/0	Stock	413160AB8	13	10,000	SH		SOLE		0	0	13
HELMERICH & PAYNE INC COM	Stock	423452101	32	800	SH		SOLE		0	0	32
HEWLETT PACKARD ENTERPRISE C COM	Stock	42824C109	3	200	SH		SOLE		0	0	3
HIMAX TECHNOLOGIES INC SPONSORED ADR	Stock	43289P106	11	5,000	SH		SOLE		0	0	11
INFINERA CORPORATION NOTE 2.125 9/0	Stock	45667GAC7	4,390	5,060,000	SH		SOLE		0	0	4,390
INOVALON HLDGS INC COM CL A	Stock	45781D101	13,418	818,650	SH		SOLE		0	0	13,418
INTEL CORP COM	Stock	458140100	82	1,600	SH		SOLE		0	0	82
INTERNATIONAL BUSINESS MACHS COM	Stock	459200101	685	4,712	SH		SOLE		0	0	685
ITERIS INC COM	Stock	46564T107	10,326	1,797,442	SH		SOLE		0	0	10,326
JPMORGAN CHASE & CO COM	Stock	46625H100	1,422	12,079	SH		SOLE		0	0	1,422
JOHNSON & JOHNSON COM	Stock	478160104	2,271	17,552	SH		SOLE		0	0	2,271
KKR & CO INC CL A	Stock	48251W104	3,110	115,820	SH		SOLE		0	0	3,110
KIMBERLY CLARK CORP COM	Stock	494368103	128	900	SH		SOLE		0	0	128
KINDER MORGAN INC DEL COM	Stock	49456B101	317	15,380	SH		SOLE		0	0	317
KOPIN CORP COM	Stock	500600101	207	304,850	SH		SOLE		0	0	207
LEIDOS HLDGS INC COM	Stock	525327102	3,670	42,735	SH		SOLE		0	0	3,670
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	37	340	SH		SOLE		0	0	37
LUMINEX CORP DEL COM	Stock	55027E102	4,734	229,255	SH		SOLE		0	0	4,734
MPLX LP COM UNIT REP LTD	Stock	55336V100	159	5,674	SH		SOLE		0	0	159
MACOM TECH SOLUTIONS HLDGS I COM	Stock	55405Y100	1,252	58,258	SH		SOLE		0	0	1,252
MACERICH CO COM	Stock	554382101	8	260	SH		SOLE		0	0	8
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP	Stock	559080106	2,306	34,800	SH		SOLE		0	0	2,306
MAGNOLIA OIL & GAS CORP CL A	Stock	559663109	1	50	SH		SOLE		0	0	1
MCDONALDS CORP COM	Stock	580135101	142	661	SH		SOLE		0	0	142
MERCK & CO INC COM	Stock	58933Y105	34	400	SH		SOLE		0	0	34
METLIFE INC COM	Stock	59156R108	219	4,650	SH		SOLE		0	0	219
MICROSOFT CORP COM	Stock	594918104	1,630	11,725	SH		SOLE		0	0	1,630
MICROVISION INC DEL COM NEW	Stock	594960304	5	9,000	SH		SOLE		0	0	5
MOBILEIRON INC COM NEW	Stock	60739U204	11,425	1,745,600	SH		SOLE		0	0	11,425
MONDELEZ INTL INC CL A	Stock	609207105	100	1,800	SH		SOLE		0	0	100
MORGAN STANLEY COM NEW	Stock	617446448	1	18	SH		SOLE		0	0	1
NIC INC COM	Stock	62914B100	613	29,700	SH		SOLE		0	0	613
NVE CORP COM NEW	Stock	629445206	665	10,015	SH		SOLE		0	0	665
NATIONAL RESH CORP COM NEW	Stock	637372202	809	14,000	SH		SOLE		0	0	809
NATIONAL RETAIL PPTYS INC COM	Stock	637417106	56	1,000	SH		SOLE		0	0	56
NEOGEN CORP COM	Stock	640491106	749	11,000	SH		SOLE		0	0	749
NEOGENOMICS INC COM NEW	Stock	64049M209	7,119	372,316	SH		SOLE		0	0	7,119
NEW MEDIA INVT GROUP INC COM	Stock	64704V106	1,326	150,500	SH		SOLE		0	0	1,326
NEW RESIDENTIAL INVT CORP COM NEW	Stock	64828T201	55	3,500	SH		SOLE		0	0	55
NOKIA CORP SPONSORED ADR	Stock	654902204	1	166	SH		SOLE		0	0	1
NORTHROP GRUMMAN CORP COM	Stock	666807102	169	450	SH		SOLE		0	0	169
NOVARTIS A G SPONSORED ADR	Stock	66987V109	9	100	SH		SOLE		0	0	9
NOVO-NORDISK A S ADR	Stock	670100205	168	3,250	SH		SOLE		0	0	168
NUSTAR ENERGY LP UNIT COM	Stock	67058H102	131	4,630	SH		SOLE		0	0	131
NUTANIX INC CL A	Stock	67059N108	452	17,230	SH		SOLE		0	0	452
OCCIDENTAL PETE CORP COM	Stock	674599105	24	550	SH		SOLE		0	0	24
ORACLE CORP COM	Stock	68389X105	22	394	SH		SOLE		0	0	22
OXFORD SQUARE CAP CORP COM	Stock	69181V107	15	2,400	SH		SOLE		0	0	15
PDF SOLUTIONS INC COM	Stock	693282105	16,169	1,237,100	SH		SOLE		0	0	16,169
PRGX GLOBAL INC COM NEW	Stock	69357C503	27	5,166	SH		SOLE		0	0	27
PTC INC COM	Stock	69370C100	1,370	20,100	SH		SOLE		0	0	1,370
PAYCHEX INC COM	Stock	704326107	199	2,400	SH		SOLE		0	0	199
PAYPAL HLDGS INC COM	Stock	70450Y103	107	1,034	SH		SOLE		0	0	107
PEAPACK-GLADSTONE FINL CORP COM	Stock	704699107	42	1,500	SH		SOLE		0	0	42
PEPSICO INC COM	Stock	713448108	123	900	SH		SOLE		0	0	123
PFIZER INC COM	Stock	717081103	2,952	82,150	SH		SOLE		0	0	2,952
PHILIP MORRIS INTL INC COM	Stock	718172109	76	1,000	SH		SOLE		0	0	76
PINTEREST INC CL A	Stock	72352L106	11	400	SH		SOLE		0	0	11
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN	Stock	726503105	71	3,400	SH		SOLE		0	0	71
PROCTER & GAMBLE CO COM	Stock	742718109	100	800	SH		SOLE		0	0	100
QUOTIENT TECHNOLOGY INC COM	Stock	749119103	15,697	2,007,304	SH		SOLE		0	0	15,697
REDFIN CORP COM	Stock	75737F108	805	47,800	SH		SOLE		0	0	805
RIBBON COMMUNICATIONS INC COM	Stock	762544104	1,277	218,583	SH		SOLE		0	0	1,277
RUBICON PROJ INC COM	Stock	78112V102	7,534	865,000	SH		SOLE		0	0	7,534
SPDR GOLD TRUST GOLD SHS	Stock	78463V107	22	160	SH		SOLE		0	0	22
SCHLUMBERGER LTD COM	Stock	806857108	29	835	SH		SOLE		0	0	29
SCIENTIFIC GAMES CORP COM	Stock	80874P109	4,950	243,260	SH		SOLE		0	0	4,950
SEMPRA ENERGY COM	Stock	816851109	118	800	SH		SOLE		0	0	118
STARBUCKS CORP COM	Stock	855244109	1,817	20,550	SH		SOLE		0	0	1,817
STITCH FIX INC COM CL A	Stock	860897107	10	500	SH		SOLE		0	0	10
SUBURBAN PROPANE PARTNERS L UNIT LTD PARTN	Stock	864482104	118	5,013	SH		SOLE		0	0	118
SYNACOR INC COM	Stock	871561106	359	256,675	SH		SOLE		0	0	359
SYSCO CORP COM	Stock	871829107	95	1,200	SH		SOLE		0	0	95
TARGA RES CORP COM	Stock	87612G101	17	434	SH		SOLE		0	0	17
TECHTARGET INC COM	Stock	87874R100	1,944	86,300	SH		SOLE		0	0	1,944
TEVA PHARMACEUTICAL INDS LTD SPONSORED ADS	Stock	881624209	565	82,154	SH		SOLE		0	0	565
TEXAS INSTRS INC COM	Stock	882508104	389	3,012	SH		SOLE		0	0	389
3-D SYS CORP DEL COM NEW	Stock	88554D205	1,196	146,700	SH		SOLE		0	0	1,196
TRANSACT TECHNOLOGIES INC COM	Stock	892918103	3,245	267,073	SH		SOLE		0	0	3,245
TRUECAR INC COM	Stock	89785L107	13	3,800	SH		SOLE		0	0	13
TYME TECHNOLOGIES INC COM	Stock	90238J103	6	5,000	SH		SOLE		0	0	6
UNILEVER PLC SPON ADR NEW	Stock	904767704	87	1,445	SH		SOLE		0	0	87
UNITED AIRLINES HLDGS INC COM	Stock	910047109	2,144	24,250	SH		SOLE		0	0	2,144
UNITED PARCEL SERVICE INC CL B	Stock	911312106	129	1,080	SH		SOLE		0	0	129
UNITEDHEALTH GROUP INC COM	Stock	91324P102	109	500	SH		SOLE		0	0	109
VANECK VECTORS ETF TR GOLD MINERS ETF	Stock	92189F106	80	3,000	SH		SOLE		0	0	80
VANECK VECTORS ETF TR JR GOLD MINERS E	Stock	92189F791	1	35	SH		SOLE		0	0	1
VERIZON COMMUNICATIONS INC COM	Stock	92343V104	137	2,263	SH		SOLE		0	0	137
VILLAGE FARMS INTL INC COM	Stock	92707Y108	1	100	SH		SOLE		0	0	1
VONAGE HLDGS CORP COM	Stock	92886T201	16,196	1,433,300	SH		SOLE		0	0	16,196
WABTEC CORP COM	Stock	929740108	5	69	SH		SOLE		0	0	5
WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT	Stock	958669103	95	3,813	SH		SOLE		0	0	95
WEYERHAEUSER CO COM	Stock	962166104	896	32,350	SH		SOLE		0	0	896
WILLIAMS COS INC DEL COM	Stock	969457100	24	1,000	SH		SOLE		0	0	24
YUM BRANDS INC COM	Stock	988498101	204	1,800	SH		SOLE		0	0	204
ALLEGION PUB LTD CO ORD SHS	Stock	G0176J109	69	666	SH		SOLE		0	0	69
ALLERGAN PLC SHS	Stock	G0177J108	30	181	SH		SOLE		0	0	30
INGERSOLL-RAND PLC SHS	Stock	G47791101	228	1,850	SH		SOLE		0	0	228
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	98	12,100	SH		SOLE		0	0	98
KORNIT DIGITAL LTD SHS	Stock	M6372Q113	1,742	56,594	SH		SOLE		0	0	1,742
SPDR S&P 500 ETF TR PUT	PUT	78462F953	21	0	SH		SOLE		0	0	21
COMSCORE INC CALL	CALL	20564W905	0	200	SH		SOLE		0	0	0