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	23	1	SH		SOLE		0	0	23
ABBVIE INC COM	Stock	00287Y109	300	24	SH		SOLE		0	0	300
ADAMIS PHARMACEUTICALS CORP COM NEW	Stock	00547W208	6	0	SH		SOLE		0	0	6
ALIBABA GROUP HLDG LTD SPONSORED ADS	Stock	01609W102	200	36	SH		SOLE		0	0	200
ALPHABET INC CAP STK CL C	Stock	02079K107	140	164	SH		SOLE		0	0	140
ALPHABET INC CAP STK CL A	Stock	02079K305	40	47	SH		SOLE		0	0	40
ALTRIA GROUP INC COM	Stock	02209S103	1,500	86	SH		SOLE		0	0	1,500
ANDEAVOR LOGISTICS LP COM UNIT LP INT	Stock	03350F106	5,000	176	SH		SOLE		0	0	5,000
APYX MED CORP COM	Stock	03837C106	291,205	1,838	SH		SOLE		0	0	291,205
ASPEN AEROGELS INC COM	Stock	04523Y105	740,900	1,889	SH		SOLE		0	0	740,900
BIOLIFE SOLUTIONS INC COM NEW	Stock	09062W204	3,500	63	SH		SOLE		0	0	3,500
BLACKSTONE GROUP L P COM UNIT LTD	Stock	09253U108	10,400	364	SH		SOLE		0	0	10,400
BOINGO WIRELESS INC COM	Stock	09739C102	11,500	268	SH		SOLE		0	0	11,500
BOSTON OMAHA CORP COM	Stock	101044105	101,469	2,531	SH		SOLE		0	0	101,469
BRISTOL MYERS SQUIBB CO COM	Stock	110122108	2,100	100	SH		SOLE		0	0	2,100
BROADVISION INC COM PAR	Stock	111412706	4	0	SH		SOLE		0	0	4
CUI GLOBAL INC COM NEW	Stock	126576206	211,013	249	SH		SOLE		0	0	211,013
CALIFORNIA RES CORP COM NEW	Stock	13057Q206	26	1	SH		SOLE		0	0	26
CASTLIGHT HEALTH INC CL B	Stock	14862Q100	1,743,559	6,538	SH		SOLE		0	0	1,743,559
CEVA INC COM	Stock	157210105	23,521	634	SH		SOLE		0	0	23,521
CHEVRON CORP NEW COM	Stock	166764100	11,650	1,435	SH		SOLE		0	0	11,650
CISCO SYS INC COM	Stock	17275R102	100	5	SH		SOLE		0	0	100
CITIGROUP INC COM NEW	Stock	172967424	35	2	SH		SOLE		0	0	35
COCA COLA CO COM	Stock	191216100	1,000	47	SH		SOLE		0	0	1,000
CONOCOPHILLIPS COM	Stock	20825C104	3,000	200	SH		SOLE		0	0	3,000
CORNING INC COM	Stock	219350105	1,150	38	SH		SOLE		0	0	1,150
CROWN CASTLE INTL CORP NEW COM	Stock	22822V101	26,425	3,382	SH		SOLE		0	0	26,425
DCP MIDSTREAM LP COM UT LTD PTN	Stock	23311P100	1,600	53	SH		SOLE		0	0	1,600
DXC TECHNOLOGY CO COM	Stock	23355L106	16	1	SH		SOLE		0	0	16
DARDEN RESTAURANTS INC COM	Stock	237194105	250	30	SH		SOLE		0	0	250
DEERE & CO COM	Stock	244199105	1,500	240	SH		SOLE		0	0	1,500
DELTA AIR LINES INC DEL COM NEW	Stock	247361702	29,410	1,519	SH		SOLE		0	0	29,410
DIGIMARC CORP NEW COM	Stock	25381B101	154,738	4,856	SH		SOLE		0	0	154,738
DOMINION ENERGY INC COM	Stock	25746U109	800	61	SH		SOLE		0	0	800
DOWDUPONT INC COM	Stock	26078J100	82,136	4,379	SH		SOLE		0	0	82,136
DURECT CORP COM	Stock	266605104	87,128	55	SH		SOLE		0	0	87,128
EOG RES INC COM	Stock	26875P101	300	29	SH		SOLE		0	0	300
EATON VANCE TAX MNGD GBL DV COM	Stock	27829F108	2,700	22	SH		SOLE		0	0	2,700
EBAY INC COM	Stock	278642103	1,000	37	SH		SOLE		0	0	1,000
EHEALTH INC COM	Stock	28238P109	247,768	15,446	SH		SOLE		0	0	247,768
ELECTRONICS FOR IMAGING INC COM	Stock	286082102	5,100	137	SH		SOLE		0	0	5,100
EMERSON ELEC CO COM	Stock	291011104	1,000	68	SH		SOLE		0	0	1,000
EMPIRE ST RLTY OP L P UNIT LTD PRTNSP	Stock	292102100	12,904	206	SH		SOLE		0	0	12,904
ENTERPRISE PRODS PARTNERS L COM	Stock	293792107	66,080	1,923	SH		SOLE		0	0	66,080
EVERSPIN TECHNOLOGIES INC COM	Stock	30041T104	4,500	34	SH		SOLE		0	0	4,500
EXELON CORP COM	Stock	30161N101	20,050	1,005	SH		SOLE		0	0	20,050
EXXON MOBIL CORP COM	Stock	30231G102	5,670	458	SH		SOLE		0	0	5,670
FORMFACTOR INC COM	Stock	346375108	4,795	77	SH		SOLE		0	0	4,795
FUSION CONNECT INC COM	Stock	36116X102	911,200	1,194	SH		SOLE		0	0	911,200
GDS HLDGS LTD SPONSORED ADS	Stock	36165L108	4,000	143	SH		SOLE		0	0	4,000
GW PHARMACEUTICALS PLC ADS	Stock	36197T103	25	4	SH		SOLE		0	0	25
GSI TECHNOLOGY COM	Stock	36241U106	72,322	562	SH		SOLE		0	0	72,322
GENERAL ELECTRIC CO COM	Stock	369604103	13,470	135	SH		SOLE		0	0	13,470
GENOMIC HEALTH INC COM	Stock	37244C101	2,000	140	SH		SOLE		0	0	2,000
GLOBAL PARTNERS LP COM UNITS	Stock	37946R109	4,150	82	SH		SOLE		0	0	4,150
GREENSKY INC CL A	Stock	39572G100	4,000	52	SH		SOLE		0	0	4,000
HCP INC COM	Stock	40414L109	8,000	250	SH		SOLE		0	0	8,000
HTG MOLECULAR DIAGNOSTICS IN COM	Stock	40434H104	20,000	50	SH		SOLE		0	0	20,000
HP INC COM	Stock	40434L105	200	4	SH		SOLE		0	0	200
HALLIBURTON CO COM	Stock	406216101	100	3	SH		SOLE		0	0	100
HARMONIC INC COM	Stock	413160102	344,035	1,865	SH		SOLE		0	0	344,035
HARMONIC INC NOTE 4.000 12/0	Stock	413160AB8	2,175,000	2,473	SH		SOLE		0	0	2,175,000
HELMERICH & PAYNE INC COM	Stock	423452101	800	44	SH		SOLE		0	0	800
HEWLETT PACKARD ENTERPRISE C COM	Stock	42824C109	200	3	SH		SOLE		0	0	200
HIMAX TECHNOLOGIES INC SPONSORED ADR	Stock	43289P106	5,000	16	SH		SOLE		0	0	5,000
INFINERA CORPORATION NOTE 2.125 9/0	Stock	45667GAC7	2,000,000	1,579	SH		SOLE		0	0	2,000,000
INOVALON HLDGS INC COM CL A	Stock	45781D101	611,750	7,604	SH		SOLE		0	0	611,750
INTEL CORP COM	Stock	458140100	1,600	86	SH		SOLE		0	0	1,600
INTERMOLECULAR INC COM	Stock	45882D109	3,000	3	SH		SOLE		0	0	3,000
INTERNATIONAL BUSINESS MACHS COM	Stock	459200101	4,712	665	SH		SOLE		0	0	4,712
ITERIS INC COM	Stock	46564T107	1,396,242	5,822	SH		SOLE		0	0	1,396,242
JPMORGAN CHASE & CO COM	Stock	46625H100	14,179	1,435	SH		SOLE		0	0	14,179
JOHNSON & JOHNSON COM	Stock	478160104	21,292	2,976	SH		SOLE		0	0	21,292
KKR & CO INC CL A	Stock	48251W104	84,970	1,996	SH		SOLE		0	0	84,970
KIMBERLY CLARK CORP COM	Stock	494368103	900	112	SH		SOLE		0	0	900
KINDER MORGAN INC DEL COM	Stock	49456B101	15,380	308	SH		SOLE		0	0	15,380
KOPIN CORP COM	Stock	500600101	307,250	412	SH		SOLE		0	0	307,250
LEIDOS HLDGS INC COM	Stock	525327102	58,050	3,720	SH		SOLE		0	0	58,050
LENNAR CORP CL A	Stock	526057104	1,500	74	SH		SOLE		0	0	1,500
LENNAR CORP CL B	Stock	526057302	30	1	SH		SOLE		0	0	30
LOCKHEED MARTIN CORP COM	Stock	539830109	400	120	SH		SOLE		0	0	400
LOWES COS INC COM	Stock	548661107	340	37	SH		SOLE		0	0	340
LUMINEX CORP DEL COM	Stock	55027E102	227,555	5,236	SH		SOLE		0	0	227,555
MACOM TECH SOLUTIONS HLDGS I COM	Stock	55405Y100	51,658	863	SH		SOLE		0	0	51,658
MACERICH CO COM	Stock	554382101	260	11	SH		SOLE		0	0	260
MACQUARIE INFRASTRUCTURE COR COM	Stock	55608B105	5,000	206	SH		SOLE		0	0	5,000
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP	Stock	559080106	34,800	2,110	SH		SOLE		0	0	34,800
MAGNOLIA OIL & GAS CORP CL A	Stock	559663109	50	1	SH		SOLE		0	0	50
MCDONALDS CORP COM	Stock	580135101	661	126	SH		SOLE		0	0	661
MERCK & CO INC COM	Stock	58933Y105	400	33	SH		SOLE		0	0	400
METLIFE INC COM	Stock	59156R108	5,150	219	SH		SOLE		0	0	5,150
MICRO FOCUS INTERNATIONAL PL SPON ADR NEW	Stock	594837304	26	1	SH		SOLE		0	0	26
MICROSOFT CORP COM	Stock	594918104	13,225	1,560	SH		SOLE		0	0	13,225
MICROVISION INC DEL COM NEW	Stock	594960304	12,800	12	SH		SOLE		0	0	12,800
MOBILEIRON INC COM NEW	Stock	60739U204	1,759,400	9,624	SH		SOLE		0	0	1,759,400
MONDELEZ INTL INC CL A	Stock	609207105	1,800	90	SH		SOLE		0	0	1,800
MORGAN STANLEY COM NEW	Stock	617446448	18	1	SH		SOLE		0	0	18
NIC INC COM	Stock	62914B100	33,700	576	SH		SOLE		0	0	33,700
NVE CORP COM NEW	Stock	629445206	8,831	864	SH		SOLE		0	0	8,831
NATIONAL RESH CORP COM NEW	Stock	637372202	16,200	625	SH		SOLE		0	0	16,200
NATIONAL RETAIL PPTYS INC COM	Stock	637417106	1,000	55	SH		SOLE		0	0	1,000
NEOGEN CORP COM	Stock	640491106	11,000	631	SH		SOLE		0	0	11,000
NEOGENOMICS INC COM NEW	Stock	64049M209	584,766	11,964	SH		SOLE		0	0	584,766
NEW AGE BEVERAGES CORP COM	Stock	64157V108	1,000	5	SH		SOLE		0	0	1,000
NEW MEDIA INVT GROUP INC COM	Stock	64704V106	144,200	1,514	SH		SOLE		0	0	144,200
NEW RESIDENTIAL INVT CORP COM NEW	Stock	64828T201	3,500	59	SH		SOLE		0	0	3,500
NOKIA CORP SPONSORED ADR	Stock	654902204	3,166	18	SH		SOLE		0	0	3,166
NORTHROP GRUMMAN CORP COM	Stock	666807102	450	121	SH		SOLE		0	0	450
NORTHSTAR REALTY EUROPE CORP COM	Stock	66706L101	1,083	19	SH		SOLE		0	0	1,083
NOVARTIS A G SPONSORED ADR	Stock	66987V109	100	10	SH		SOLE		0	0	100
NOVO-NORDISK A S ADR	Stock	670100205	3,250	170	SH		SOLE		0	0	3,250
NUSTAR ENERGY LP UNIT COM	Stock	67058H102	4,630	125	SH		SOLE		0	0	4,630
NUTANIX INC CL A	Stock	67059N108	15,430	582	SH		SOLE		0	0	15,430
OCCIDENTAL PETE CORP COM	Stock	674599105	550	36	SH		SOLE		0	0	550
ORACLE CORP COM	Stock	68389X105	394	21	SH		SOLE		0	0	394
OXFORD SQUARE CAP CORP COM	Stock	69181V107	2,400	16	SH		SOLE		0	0	2,400
PDF SOLUTIONS INC COM	Stock	693282105	788,371	9,736	SH		SOLE		0	0	788,371
PRGX GLOBAL INC COM NEW	Stock	69357C503	5,166	41	SH		SOLE		0	0	5,166
PTC INC COM	Stock	69370C100	20,200	1,862	SH		SOLE		0	0	20,200
PARETEUM CORP COM NEW	Stock	69946T207	58	0	SH		SOLE		0	0	58
PAYCHEX INC COM	Stock	704326107	2,400	192	SH		SOLE		0	0	2,400
PAYPAL HLDGS INC COM	Stock	70450Y103	1,034	107	SH		SOLE		0	0	1,034
PEAPACK-GLADSTONE FINL CORP COM	Stock	704699107	1,500	39	SH		SOLE		0	0	1,500
PEPSICO INC COM	Stock	713448108	900	110	SH		SOLE		0	0	900
PERSPECTA INC COM	Stock	715347100	8	0	SH		SOLE		0	0	8
PFIZER INC COM	Stock	717081103	93,320	3,963	SH		SOLE		0	0	93,320
PHILIP MORRIS INTL INC COM	Stock	718172109	1,000	88	SH		SOLE		0	0	1,000
PIONEER ENERGY SVCS CORP COM	Stock	723664108	175	0	SH		SOLE		0	0	175
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN	Stock	726503105	3,400	83	SH		SOLE		0	0	3,400
PROCTER AND GAMBLE CO COM	Stock	742718109	1,000	104	SH		SOLE		0	0	1,000
QUOTIENT TECHNOLOGY INC COM	Stock	749119103	1,562,496	15,422	SH		SOLE		0	0	1,562,496
REDFIN CORP COM	Stock	75737F108	47,800	969	SH		SOLE		0	0	47,800
RIBBON COMMUNICATIONS INC COM	Stock	762544104	300,083	1,545	SH		SOLE		0	0	300,083
RUBICON PROJ INC COM	Stock	78112V102	5,000	30	SH		SOLE		0	0	5,000
SPDR GOLD TRUST GOLD SHS	Stock	78463V107	160	20	SH		SOLE		0	0	160
SCHLUMBERGER LTD COM	Stock	806857108	835	36	SH		SOLE		0	0	835
SEMPRA ENERGY COM	Stock	816851109	800	101	SH		SOLE		0	0	800
SERVICESOURCE INTL INC COM	Stock	81763U100	110,000	101	SH		SOLE		0	0	110,000
SIRIUS XM HLDGS INC COM	Stock	82968B103	9	0	SH		SOLE		0	0	9
SMITH MICRO SOFTWARE INC COM NEW	Stock	832154207	30,268	85	SH		SOLE		0	0	30,268
STARBUCKS CORP COM	Stock	855244109	25,850	1,922	SH		SOLE		0	0	25,850
STITCH FIX INC COM CL A	Stock	860897107	500	14	SH		SOLE		0	0	500
SUBURBAN PROPANE PARTNERS L UNIT LTD PARTN	Stock	864482104	5,513	124	SH		SOLE		0	0	5,513
SYNACOR INC COM	Stock	871561106	314,725	494	SH		SOLE		0	0	314,725
SYSCO CORP COM	Stock	871829107	1,200	80	SH		SOLE		0	0	1,200
TARGA RES CORP COM	Stock	87612G101	434	18	SH		SOLE		0	0	434
TECHTARGET INC COM	Stock	87874R100	195,200	3,176	SH		SOLE		0	0	195,200
TEVA PHARMACEUTICAL INDS LTD SPONSORED ADS	Stock	881624209	82,154	1,288	SH		SOLE		0	0	82,154
TEXAS INSTRS INC COM	Stock	882508104	3,012	319	SH		SOLE		0	0	3,012
3-D SYS CORP DEL COM NEW	Stock	88554D205	123,210	1,326	SH		SOLE		0	0	123,210
TRANSACT TECHNOLOGIES INC COM	Stock	892918103	248,979	2,276	SH		SOLE		0	0	248,979
TRUECAR INC COM	Stock	89785L107	845,200	5,612	SH		SOLE		0	0	845,200
TYME TECHNOLOGIES INC COM	Stock	90238J103	5,000	9	SH		SOLE		0	0	5,000
UNILEVER PLC SPON ADR NEW	Stock	904767704	1,445	83	SH		SOLE		0	0	1,445
UNITED CONTL HLDGS INC COM	Stock	910047109	29,830	2,380	SH		SOLE		0	0	29,830
UNITED PARCEL SERVICE INC CL B	Stock	911312106	1,080	121	SH		SOLE		0	0	1,080
UNITEDHEALTH GROUP INC COM	Stock	91324P102	500	124	SH		SOLE		0	0	500
VANECK VECTORS ETF TR GOLD MINERS ETF	Stock	92189F106	3,000	67	SH		SOLE		0	0	3,000
VANECK VECTORS ETF TR JR GOLD MINERS E	Stock	92189F791	35	1	SH		SOLE		0	0	35
VERIZON COMMUNICATIONS INC COM	Stock	92343V104	2,263	134	SH		SOLE		0	0	2,263
VILLAGE FARMS INTL INC COM	Stock	92707Y108	6,900	97	SH		SOLE		0	0	6,900
VONAGE HLDGS CORP COM	Stock	92886T201	1,352,550	13,580	SH		SOLE		0	0	1,352,550
WABTEC CORP COM	Stock	929740108	69	5	SH		SOLE		0	0	69
WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT	Stock	958669103	3,813	120	SH		SOLE		0	0	3,813
WEYERHAEUSER CO COM	Stock	962166104	30,150	794	SH		SOLE		0	0	30,150
WILLIAMS COS INC DEL COM	Stock	969457100	1,000	29	SH		SOLE		0	0	1,000
YUM BRANDS INC COM	Stock	988498101	2,300	230	SH		SOLE		0	0	2,300
ALLEGION PUB LTD CO ORD SHS	Stock	G0176J109	666	60	SH		SOLE		0	0	666
ALLERGAN PLC SHS	Stock	G0177J108	181	27	SH		SOLE		0	0	181
INGERSOLL-RAND PLC SHS	Stock	G47791101	1,850	200	SH		SOLE		0	0	1,850
NOBLE CORP PLC SHS USD	Stock	G65431101	800	2	SH		SOLE		0	0	800
ALLOT LTD SHS	Stock	M0854Q105	5,800	46	SH		SOLE		0	0	5,800
KORNIT DIGITAL LTD SHS	Stock	M6372Q113	59,294	1,411	SH		SOLE		0	0	59,294