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	22	300	SH		SOLE		0	0	22
ALIBABA GROUP HLDG LTD SPONSORED ADS	Stock	01609W102	34	200	SH		SOLE		0	0	34
ALPHABET INC CAP STK CL C	Stock	02079K107	151	140	SH		SOLE		0	0	151
ALPHABET INC CAP STK CL A	Stock	02079K305	43	40	SH		SOLE		0	0	43
ALTRIA GROUP INC COM	Stock	02209S103	71	1,500	SH		SOLE		0	0	71
ANDEAVOR LOGISTICS LP COM UNIT LP INT	Stock	03350F106	182	5,000	SH		SOLE		0	0	182
APYX MED CORP COM	Stock	03837C106	1,825	271,605	SH		SOLE		0	0	1,825
ASPEN AEROGELS INC COM	Stock	04523Y105	4,282	600,500	SH		SOLE		0	0	4,282
BLACKSTONE GROUP L P COM UNIT LTD	Stock	09253U108	400	9,000	SH		SOLE		0	0	400
BOINGO WIRELESS INC COM	Stock	09739C102	199	11,100	SH		SOLE		0	0	199
BOSTON OMAHA CORP COM	Stock	101044105	1,073	46,369	SH		SOLE		0	0	1,073
BRISTOL MYERS SQUIBB CO COM	Stock	110122108	95	2,100	SH		SOLE		0	0	95
CUI GLOBAL INC COM NEW	Stock	126576206	186	226,346	SH		SOLE		0	0	186
CALIFORNIA RES CORP COM NEW	Stock	13057Q206	1	26	SH		SOLE		0	0	1
CASTLIGHT HEALTH INC CL B	Stock	14862Q100	3,355	1,038,559	SH		SOLE		0	0	3,355
CEVA INC COM	Stock	157210105	613	25,171	SH		SOLE		0	0	613
CHEVRON CORP NEW COM	Stock	166764100	1,412	11,350	SH		SOLE		0	0	1,412
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	51	1,000	SH		SOLE		0	0	51
COMSCORE INC COM	Stock	20564W105	1,192	231,000	SH		SOLE		0	0	1,192
CORNING INC COM	Stock	219350105	38	1,150	SH		SOLE		0	0	38
CORTEVA INC COM	Stock	22052L104	598	20,228	SH		SOLE		0	0	598
CROWN CASTLE INTL CORP NEW COM	Stock	22822V101	3,445	26,425	SH		SOLE		0	0	3,445
DCP MIDSTREAM LP COM UT LTD PTN	Stock	23311P100	47	1,600	SH		SOLE		0	0	47
DXC TECHNOLOGY CO COM	Stock	23355L106	1	16	SH		SOLE		0	0	1
DARDEN RESTAURANTS INC COM	Stock	237194105	30	250	SH		SOLE		0	0	30
DEERE & CO COM	Stock	244199105	249	1,500	SH		SOLE		0	0	249
DELTA AIR LINES INC DEL COM NEW	Stock	247361702	1,669	29,410	SH		SOLE		0	0	1,669
DIGIMARC CORP NEW COM	Stock	25381B101	6,401	144,193	SH		SOLE		0	0	6,401
DOMINION ENERGY INC COM	Stock	25746U109	62	800	SH		SOLE		0	0	62
DOW INC COM	Stock	260557103	668	13,549	SH		SOLE		0	0	668
DUPONT DE NEMOURS INC COM	Stock	26614N102	2,377	31,670	SH		SOLE		0	0	2,377
DURECT CORP COM	Stock	266605104	57	87,128	SH		SOLE		0	0	57
EOG RES INC COM	Stock	26875P101	28	300	SH		SOLE		0	0	28
EATON VANCE TAX MNGD GBL DV COM	Stock	27829F108	22	2,700	SH		SOLE		0	0	22
EBAY INC COM	Stock	278642103	40	1,000	SH		SOLE		0	0	40
EHEALTH INC COM	Stock	28238P109	10,326	119,927	SH		SOLE		0	0	10,326
ELECTRONICS FOR IMAGING INC COM	Stock	286082102	48	1,300	SH		SOLE		0	0	48
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	191	12,904	SH		SOLE		0	0	191
ENTERPRISE PRODS PARTNERS L COM	Stock	293792107	1,937	67,080	SH		SOLE		0	0	1,937
EVENTBRITE INC COM CL A	Stock	29975E109	270	16,650	SH		SOLE		0	0	270
EVERSPIN TECHNOLOGIES INC COM	Stock	30041T104	29	4,500	SH		SOLE		0	0	29
EXELON CORP COM	Stock	30161N101	961	20,050	SH		SOLE		0	0	961
EXXON MOBIL CORP COM	Stock	30231G102	434	5,670	SH		SOLE		0	0	434
FORMFACTOR INC COM	Stock	346375108	52	3,295	SH		SOLE		0	0	52
GW PHARMACEUTICALS PLC ADS	Stock	36197T103	4	25	SH		SOLE		0	0	4
GSI TECHNOLOGY COM	Stock	36241U106	679	79,174	SH		SOLE		0	0	679
GENERAL ELECTRIC CO COM	Stock	369604103	141	13,470	SH		SOLE		0	0	141
GENOMIC HEALTH INC COM	Stock	37244C101	116	2,000	SH		SOLE		0	0	116
GLOBAL PARTNERS LP COM UNITS	Stock	37946R109	83	4,150	SH		SOLE		0	0	83
GREENSKY INC CL A	Stock	39572G100	25	2,000	SH		SOLE		0	0	25
HCP INC COM	Stock	40414L109	256	8,000	SH		SOLE		0	0	256
HTG MOLECULAR DIAGNOSTICS IN COM	Stock	40434H104	17	10,000	SH		SOLE		0	0	17
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	1,959	352,935	SH		SOLE		0	0	1,959
HARMONIC INC NOTE 4.000 12/0	Stock	413160AB8	2,534	2,175,000	SH		SOLE		0	0	2,534
HELMERICH & PAYNE INC COM	Stock	423452101	41	800	SH		SOLE		0	0	41
HEWLETT PACKARD ENTERPRISE C COM	Stock	42824C109	3	200	SH		SOLE		0	0	3
HIMAX TECHNOLOGIES INC SPONSORED ADR	Stock	43289P106	17	5,000	SH		SOLE		0	0	17
INFINERA CORPORATION NOTE 2.125 9/0	Stock	45667GAC7	3,662	5,390,000	SH		SOLE		0	0	3,662
INOVALON HLDGS INC COM CL A	Stock	45781D101	10,752	741,000	SH		SOLE		0	0	10,752
INTEL CORP COM	Stock	458140100	77	1,600	SH		SOLE		0	0	77
INTERMOLECULAR INC COM	Stock	45882D109	4	3,000	SH		SOLE		0	0	4
INTERNATIONAL BUSINESS MACHS COM	Stock	459200101	650	4,712	SH		SOLE		0	0	650
ITERIS INC COM	Stock	46564T107	8,365	1,618,028	SH		SOLE		0	0	8,365
JPMORGAN CHASE & CO COM	Stock	46625H100	1,585	14,179	SH		SOLE		0	0	1,585
JOHNSON & JOHNSON COM	Stock	478160104	2,805	20,142	SH		SOLE		0	0	2,805
KKR & CO INC CL A	Stock	48251W104	3,414	135,120	SH		SOLE		0	0	3,414
KIMBERLY CLARK CORP COM	Stock	494368103	120	900	SH		SOLE		0	0	120
KINDER MORGAN INC DEL COM	Stock	49456B101	321	15,380	SH		SOLE		0	0	321
KOPIN CORP COM	Stock	500600101	327	300,350	SH		SOLE		0	0	327
LEIDOS HLDGS INC COM	Stock	525327102	3,970	49,715	SH		SOLE		0	0	3,970
LENNAR CORP CL A	Stock	526057104	73	1,500	SH		SOLE		0	0	73
LENNAR CORP CL B	Stock	526057302	1	30	SH		SOLE		0	0	1
LOCKHEED MARTIN CORP COM	Stock	539830109	145	400	SH		SOLE		0	0	145
LOWES COS INC COM	Stock	548661107	34	340	SH		SOLE		0	0	34
LUMINEX CORP DEL COM	Stock	55027E102	4,653	225,455	SH		SOLE		0	0	4,653
MACOM TECH SOLUTIONS HLDGS I COM	Stock	55405Y100	862	56,958	SH		SOLE		0	0	862
MACERICH CO COM	Stock	554382101	9	260	SH		SOLE		0	0	9
MACQUARIE INFRASTRUCTURE COR COM	Stock	55608B105	203	5,000	SH		SOLE		0	0	203
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP	Stock	559080106	2,227	34,800	SH		SOLE		0	0	2,227
MAGNOLIA OIL & GAS CORP CL A	Stock	559663109	1	50	SH		SOLE		0	0	1
MCDONALDS CORP COM	Stock	580135101	137	661	SH		SOLE		0	0	137
MERCK & CO INC COM	Stock	58933Y105	34	400	SH		SOLE		0	0	34
METLIFE INC COM	Stock	59156R108	256	5,150	SH		SOLE		0	0	256
MICRO FOCUS INTERNATIONAL PL SPON ADR NEW	Stock	594837403	1	20	SH		SOLE		0	0	1
MICROSOFT CORP COM	Stock	594918104	1,772	13,225	SH		SOLE		0	0	1,772
MICROVISION INC DEL COM NEW	Stock	594960304	9	11,000	SH		SOLE		0	0	9
MOBILEIRON INC COM NEW	Stock	60739U204	11,251	1,814,600	SH		SOLE		0	0	11,251
MONDELEZ INTL INC CL A	Stock	609207105	97	1,800	SH		SOLE		0	0	97
MORGAN STANLEY COM NEW	Stock	617446448	1	18	SH		SOLE		0	0	1
NIC INC COM	Stock	62914B100	541	33,700	SH		SOLE		0	0	541
NVE CORP COM NEW	Stock	629445206	562	8,075	SH		SOLE		0	0	562
NATIONAL RESH CORP COM NEW	Stock	637372202	806	14,000	SH		SOLE		0	0	806
NATIONAL RETAIL PPTYS INC COM	Stock	637417106	53	1,000	SH		SOLE		0	0	53
NEOGEN CORP COM	Stock	640491106	683	11,000	SH		SOLE		0	0	683
NEOGENOMICS INC COM NEW	Stock	64049M209	8,796	400,916	SH		SOLE		0	0	8,796
NEW MEDIA INVT GROUP INC COM	Stock	64704V106	1,394	147,650	SH		SOLE		0	0	1,394
NEW RESIDENTIAL INVT CORP COM NEW	Stock	64828T201	54	3,500	SH		SOLE		0	0	54
NOKIA CORP SPONSORED ADR	Stock	654902204	1	166	SH		SOLE		0	0	1
NORTHROP GRUMMAN CORP COM	Stock	666807102	145	450	SH		SOLE		0	0	145
NORTHSTAR REALTY EUROPE CORP COM	Stock	66706L101	18	1,083	SH		SOLE		0	0	18
NOVARTIS A G SPONSORED ADR	Stock	66987V109	9	100	SH		SOLE		0	0	9
NOVO-NORDISK A S ADR	Stock	670100205	166	3,250	SH		SOLE		0	0	166
NUSTAR ENERGY LP UNIT COM	Stock	67058H102	126	4,630	SH		SOLE		0	0	126
NUTANIX INC CL A	Stock	67059N108	427	16,480	SH		SOLE		0	0	427
OCCIDENTAL PETE CORP COM	Stock	674599105	28	550	SH		SOLE		0	0	28
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	14,680	1,118,900	SH		SOLE		0	0	14,680
PRGX GLOBAL INC COM NEW	Stock	69357C503	35	5,166	SH		SOLE		0	0	35
PTC INC COM	Stock	69370C100	1,804	20,100	SH		SOLE		0	0	1,804
PAYCHEX INC COM	Stock	704326107	198	2,400	SH		SOLE		0	0	198
PAYPAL HLDGS INC COM	Stock	70450Y103	118	1,034	SH		SOLE		0	0	118
PEAPACK-GLADSTONE FINL CORP COM	Stock	704699107	42	1,500	SH		SOLE		0	0	42
PEPSICO INC COM	Stock	713448108	118	900	SH		SOLE		0	0	118
PFIZER INC COM	Stock	717081103	4,043	93,320	SH		SOLE		0	0	4,043
PHILIP MORRIS INTL INC COM	Stock	718172109	79	1,000	SH		SOLE		0	0	79
PINTEREST INC CL A	Stock	72352L106	11	400	SH		SOLE		0	0	11
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN	Stock	726503105	83	3,400	SH		SOLE		0	0	83
PROCTER AND GAMBLE CO COM	Stock	742718109	110	1,000	SH		SOLE		0	0	110
QUOTIENT TECHNOLOGY INC COM	Stock	749119103	16,700	1,554,896	SH		SOLE		0	0	16,700
REDFIN CORP COM	Stock	75737F108	859	47,800	SH		SOLE		0	0	859
RIBBON COMMUNICATIONS INC COM	Stock	762544104	1,444	295,383	SH		SOLE		0	0	1,444
RUBICON PROJ INC COM	Stock	78112V102	4,717	741,700	SH		SOLE		0	0	4,717
SPDR GOLD TRUST GOLD SHS	Stock	78463V107	21	160	SH		SOLE		0	0	21
SCHLUMBERGER LTD COM	Stock	806857108	33	835	SH		SOLE		0	0	33
SCIENTIFIC GAMES CORP COM	Stock	80874P109	3,729	188,160	SH		SOLE		0	0	3,729
SEMPRA ENERGY COM	Stock	816851109	110	800	SH		SOLE		0	0	110
SERVICESOURCE INTL INC COM	Stock	81763U100	399	419,724	SH		SOLE		0	0	399
SMITH MICRO SOFTWARE INC COM NEW	Stock	832154207	92	30,268	SH		SOLE		0	0	92
STARBUCKS CORP COM	Stock	855244109	2,167	25,850	SH		SOLE		0	0	2,167
STITCH FIX INC COM CL A	Stock	860897107	16	500	SH		SOLE		0	0	16
SUBURBAN PROPANE PARTNERS L UNIT LTD PARTN	Stock	864482104	134	5,513	SH		SOLE		0	0	134
SYNACOR INC COM	Stock	871561106	472	302,825	SH		SOLE		0	0	472
SYSCO CORP COM	Stock	871829107	85	1,200	SH		SOLE		0	0	85
TARGA RES CORP COM	Stock	87612G101	17	434	SH		SOLE		0	0	17
TECHTARGET INC COM	Stock	87874R100	2,687	126,450	SH		SOLE		0	0	2,687
TEVA PHARMACEUTICAL INDS LTD SPONSORED ADS	Stock	881624209	758	82,154	SH		SOLE		0	0	758
TEXAS INSTRS INC COM	Stock	882508104	346	3,012	SH		SOLE		0	0	346
3-D SYS CORP DEL COM NEW	Stock	88554D205	1,239	136,200	SH		SOLE		0	0	1,239
TRANSACT TECHNOLOGIES INC COM	Stock	892918103	2,987	265,273	SH		SOLE		0	0	2,987
TRUECAR INC COM	Stock	89785L107	1,622	297,000	SH		SOLE		0	0	1,622
TYME TECHNOLOGIES INC COM	Stock	90238J103	6	5,000	SH		SOLE		0	0	6
UNILEVER PLC SPON ADR NEW	Stock	904767704	90	1,445	SH		SOLE		0	0	90
UNITED CONTL HLDGS INC COM	Stock	910047109	2,612	29,830	SH		SOLE		0	0	2,612
UNITED PARCEL SERVICE INC CL B	Stock	911312106	112	1,080	SH		SOLE		0	0	112
UNITEDHEALTH GROUP INC COM	Stock	91324P102	122	500	SH		SOLE		0	0	122
VANECK VECTORS ETF TR GOLD MINERS ETF	Stock	92189F106	77	3,000	SH		SOLE		0	0	77
VANECK VECTORS ETF TR JR GOLD MINERS E	Stock	92189F791	1	35	SH		SOLE		0	0	1
VERIZON COMMUNICATIONS INC COM	Stock	92343V104	129	2,263	SH		SOLE		0	0	129
VILLAGE FARMS INTL INC COM	Stock	92707Y108	1	100	SH		SOLE		0	0	1
VONAGE HLDGS CORP COM	Stock	92886T201	15,684	1,384,300	SH		SOLE		0	0	15,684
WABTEC CORP COM	Stock	929740108	5	69	SH		SOLE		0	0	5
WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT	Stock	958669103	117	3,813	SH		SOLE		0	0	117
WEYERHAEUSER CO COM	Stock	962166104	794	30,150	SH		SOLE		0	0	794
WILLIAMS COS INC DEL COM	Stock	969457100	28	1,000	SH		SOLE		0	0	28
YUM BRANDS INC COM	Stock	988498101	255	2,300	SH		SOLE		0	0	255
ALLEGION PUB LTD CO ORD SHS	Stock	G0176J109	74	666	SH		SOLE		0	0	74
ALLERGAN PLC SHS	Stock	G0177J108	30	181	SH		SOLE		0	0	30
INGERSOLL-RAND PLC SHS	Stock	G47791101	234	1,850	SH		SOLE		0	0	234
NOBLE CORP PLC SHS USD	Stock	G65431101	2	800	SH		SOLE		0	0	2
ALCON INC ORD SHS	Stock	H01301128	1	20	SH		SOLE		0	0	1
SPOTIFY TECHNOLOGY S A SHS	Stock	L8681T102	29	200	SH		SOLE		0	0	29
ALLOT LTD SHS	Stock	M0854Q105	59	8,200	SH		SOLE		0	0	59
KORNIT DIGITAL LTD SHS	Stock	M6372Q113	1,811	57,194	SH		SOLE		0	0	1,811
QUOTIENT TECHNOLOGY INC CALL	CALL	749119903	4	250	SH		SOLE		0	0	4
COMSCORE INC CALL	CALL	20564W905	4	100	SH		SOLE		0	0	4