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
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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	71	1,823	SH		SOLE		0	0	71
ABBOTT LABS COM	Stock	002824100	69	1,300	SH		SOLE		0	0	69
ABBVIE INC COM	Stock	00287Y109	71	800	SH		SOLE		0	0	71
ACCURAY INC DEL COM	Stock	004397105	712	177,899	SH		SOLE		0	0	712
ALCOA CORP COM	Stock	013872106	5	111	SH		SOLE		0	0	5
ALIBABA GROUP HLDG LTD SPONSORED ADS ISIN#US01609W1027	Stock	01609W102	35	200	SH		SOLE		0	0	35
ALLIANCE RESOURCE PARTNERS LP UNIT LTD PARTNER INT	Stock	01877R108	45	2,330	SH		SOLE		0	0	45
ALPHABET INC CAP STK CL C	Stock	02079K107	134	140	SH		SOLE		0	0	134
ALPHABET INC CL A	Stock	02079K305	39	40	SH		SOLE		0	0	39
ALTABA INC COM	Stock	021346101	222	3,356	SH		SOLE		0	0	222
ALTRIA GROUP INC COM	Stock	02209S103	95	1,500	SH		SOLE		0	0	95
AMERICAN ELECTRIC POWER CO	Stock	025537101	460	6,550	SH		SOLE		0	0	460
AMERICAN EXPRESS COMPANY	Stock	025816109	36	400	SH		SOLE		0	0	36
ANALOG DEVICES INC COM	Stock	032654105	1,465	17,000	SH		SOLE		0	0	1,465
ANDEAVOR LOGISTICS LP COM UNIT LTD PARTNERSHIP INT	Stock	03350F106	250	5,000	SH		SOLE		0	0	250
APACHE CORP COM	Stock	037411105	21	450	SH		SOLE		0	0	21
APOLLO GLOBAL MGMT LLC CL A SHS	Stock	037612306	226	7,500	SH		SOLE		0	0	226
APPLE INC COM	Stock	037833100	354	2,295	SH		SOLE		0	0	354
ARCONIC INC COM	Stock	03965L100	8	333	SH		SOLE		0	0	8
ASPEN AEROGELS INC COM	Stock	04523Y105	19	4,400	SH		SOLE		0	0	19
BRT RLTY TR SH BEN INT NEW	Stock	055645303	172	16,025	SH		SOLE		0	0	172
BANK OF AMERICA CORPORATION COM	Stock	060505104	19	760	SH		SOLE		0	0	19
BANK OF MONTREAL	Stock	063671101	57	753	SH		SOLE		0	0	57
BERKSHIRE HATHAWAY INC DEL CL B NEW	Stock	084670702	2,887	15,750	SH		SOLE		0	0	2,887
BLACKSTONE GROUP L P COM UNIT REPSTG LTD	Stock	09253U108	1,872	56,100	SH		SOLE		0	0	1,872
BOINGO WIRELESS INC COM	Stock	09739C102	1,227	57,426	SH		SOLE		0	0	1,227
BOSTON OMAHA CORP CL A	Stock	101044105	3,433	221,509	SH		SOLE		0	0	3,433
BOVIE MED CORP COM	Stock	10211F100	589	174,170	SH		SOLE		0	0	589
BRIGHTHOUSE FINL INC COM	Stock	10922N103	40	654	SH		SOLE		0	0	40
BRISTOL MYERS SQUIBB CO COM	Stock	110122108	580	9,100	SH		SOLE		0	0	580
BROCADE COMMUNICATIONS SYS INC COM NEW	Stock	111621306	617	51,650	SH		SOLE		0	0	617
CUI GLOBAL INC COM NEW	Stock	126576206	54	14,500	SH		SOLE		0	0	54
CASTLIGHT HEALTH INC CL B	Stock	14862Q100	703	163,520	SH		SOLE		0	0	703
CATERPILLAR INC COM	Stock	149123101	62	500	SH		SOLE		0	0	62
CEVA INC COM	Stock	157210105	743	17,365	SH		SOLE		0	0	743
CHEMOURS CO COM	Stock	163851108	5	100	SH		SOLE		0	0	5
COCA COLA COMPANY	Stock	191216100	338	7,500	SH		SOLE		0	0	338
COLGATE PALMOLIVE CO COM	Stock	194162103	291	4,000	SH		SOLE		0	0	291
COLONY NORTHSTAR INC CL A COM	Stock	19625W104	127	10,073	SH		SOLE		0	0	127
CORNING INC COM	Stock	219350105	34	1,150	SH		SOLE		0	0	34
CROWN CASTLE INTL CORP NEW COM	Stock	22822V101	3,254	32,550	SH		SOLE		0	0	3,254
DCP MIDSTREAM LP COM UTS REPSTG LTD PART INT	Stock	23311P100	55	1,600	SH		SOLE		0	0	55
DXC TECHNOLOGY CO COM	Stock	23355L106	1	16	SH		SOLE		0	0	1
DARDEN RESTAURANTS INC COM	Stock	237194105	20	250	SH		SOLE		0	0	20
DEERE & CO	Stock	244199105	201	1,600	SH		SOLE		0	0	201
DETERMINE INC COM	Stock	250660107	2	700	SH		SOLE		0	0	2
DIGIMARC CORP NEW COM	Stock	25381B101	10,958	299,405	SH		SOLE		0	0	10,958
DOMINION ENERGY INC COM	Stock	25746U109	154	2,000	SH		SOLE		0	0	154
DOWDUPONT INC COM	Stock	26078J100	5,689	82,182	SH		SOLE		0	0	5,689
DURECT CORP COM	Stock	266605104	137	77,128	SH		SOLE		0	0	137
EOG RES INC COM	Stock	26875P101	29	300	SH		SOLE		0	0	29
EATON VANCE TAX MANAGED GLOBAL DIVERSIFIED INCOME FD COM	Stock	27829F108	25	2,700	SH		SOLE		0	0	25
EBAY INC COM	Stock	278642103	38	1,000	SH		SOLE		0	0	38
EHEALTH INC COM	Stock	28238P109	13,819	578,450	SH		SOLE		0	0	13,819
EMERSON ELEC CO COM	Stock	291011104	63	1,000	SH		SOLE		0	0	63
EMPIRE ST RLTY OP L P UNIT LTD PARTNERSHIP INT SER ES	Stock	292102100	264	12,904	SH		SOLE		0	0	264
ENTERPRISE PRODS PARTNERS L P COM UNIT	Stock	293792107	1,697	65,080	SH		SOLE		0	0	1,697
EXELON CORP COM	Stock	30161N101	2,319	61,550	SH		SOLE		0	0	2,319
EXPEDIA INC DEL COM NEW	Stock	30212P303	4,808	33,405	SH		SOLE		0	0	4,808
EXXON MOBIL CORP COM	Stock	30231G102	549	6,700	SH		SOLE		0	0	549
FACEBOOK INC CL A	Stock	30303M102	85	500	SH		SOLE		0	0	85
FALCONSTOR SOFTWARE INC COM	Stock	306137100	35	142,476	SH		SOLE		0	0	35
FOREST CITY RLTY TR INC COM CL A	Stock	345605109	2,361	92,550	SH		SOLE		0	0	2,361
FORMFACTOR INC COM	Stock	346375108	129	7,652	SH		SOLE		0	0	129
GSI TECHNOLOGY INC COM	Stock	36241U106	75	10,257	SH		SOLE		0	0	75
GENERAL ELECTRIC CO COM	Stock	369604103	991	40,970	SH		SOLE		0	0	991
GENERAL MILLS INC COM	Stock	370334104	145	2,800	SH		SOLE		0	0	145
GENOMIC HEALTH INC COM	Stock	37244C101	4,007	124,864	SH		SOLE		0	0	4,007
GLAXOSMITHKLINE PLC SPONS ADR	Stock	37733W105	81	2,000	SH		SOLE		0	0	81
GLOBAL PARTNERS LP COM UNIT REPSTG LTD PARTNER INT	Stock	37946R109	72	4,150	SH		SOLE		0	0	72
HCP INC COM	Stock	40414L109	223	8,000	SH		SOLE		0	0	223
HP INC COM	Stock	40434L105	4	200	SH		SOLE		0	0	4
HARMONIC INC COM	Stock	413160102	663	217,503	SH		SOLE		0	0	663
HARMONIC INC FXD RT NOTES 4.000 12/01/20 B/E DTD 12/14/15	Stock	413160AB8	3,466	3,900,000	SH		SOLE		0	0	3,466
HELMERICH & PAYNE INC COM	Stock	423452101	42	800	SH		SOLE		0	0	42
HEWLETT PACKARD ENTERPRISE CO COM	Stock	42824C109	3	200	SH		SOLE		0	0	3
INOVALON HLDGS INC COM CL A	Stock	45781D101	3,193	187,300	SH		SOLE		0	0	3,193
INTEL CORP COM	Stock	458140100	61	1,600	SH		SOLE		0	0	61
INTERMOLECULAR INC COM	Stock	45882D109	3	3,000	SH		SOLE		0	0	3
INTERNATIONAL BUSINESS MACHS CORP COM	Stock	459200101	430	2,962	SH		SOLE		0	0	430
INVUITY INC COM NEW	Stock	46187J205	4,072	457,550	SH		SOLE		0	0	4,072
ITERIS INC NEW COM	Stock	46564T107	3,747	563,395	SH		SOLE		0	0	3,747
JP MORGAN CHASE & CO COM ISIN#US46625H1005	Stock	46625H100	2,223	23,274	SH		SOLE		0	0	2,223
JOHNSON & JOHNSON COM	Stock	478160104	1,526	11,734	SH		SOLE		0	0	1,526
KKR & CO L P DEL COM UNITS	Stock	48248M102	2,225	109,450	SH		SOLE		0	0	2,225
KIMBERLY CLARK CORP COM	Stock	494368103	106	900	SH		SOLE		0	0	106
KINDER MORGAN INC DEL COM	Stock	49456B101	3,332	173,746	SH		SOLE		0	0	3,332
KINDER MORGAN INC DEL DEPOSITARY SHS REPSTG 1/20TH PFD CONV SER A 9 75 MATY 10/26/2018	Stock	49456B200	132	3,100	SH		SOLE		0	0	132
KOPIN CORP COM	Stock	500600101	646	155,000	SH		SOLE		0	0	646
LEIDOS HLDGS INC COM	Stock	525327102	4,303	72,660	SH		SOLE		0	0	4,303
LENNAR CORP CL A	Stock	526057104	79	1,500	SH		SOLE		0	0	79
LOCKHEED MARTIN CORP COM	Stock	539830109	124	400	SH		SOLE		0	0	124
LUMINEX CORP DEL COM	Stock	55027E102	4,823	237,225	SH		SOLE		0	0	4,823
MACOM TECHNOLOGY SOLUTIONS HLDGS INC COM	Stock	55405Y100	208	4,660	SH		SOLE		0	0	208
MAGELLAN MIDSTREAM PARTNERS LP COM UNIT REPSTG LTD PARTNER INT	Stock	559080106	2,473	34,800	SH		SOLE		0	0	2,473
MARKEL CORP COM	Stock	570535104	160	150	SH		SOLE		0	0	160
MCDONALDS CORP	Stock	580135101	100	640	SH		SOLE		0	0	100
MERCK & CO INC NEW COM	Stock	58933Y105	90	1,400	SH		SOLE		0	0	90
METLIFE INC COM	Stock	59156R108	377	7,250	SH		SOLE		0	0	377
MICRO FOCUS INTL PLC SPONS ADR NEW ISIN# US5948373049	Stock	594837304	1	26	SH		SOLE		0	0	1
MICROSOFT CORP COM	Stock	594918104	1,350	18,125	SH		SOLE		0	0	1,350
MICROVISION INC DEL COM NEW	Stock	594960304	19	6,800	SH		SOLE		0	0	19
MONDELEZ INTL INC CL A	Stock	609207105	134	3,300	SH		SOLE		0	0	134
MORGAN STANLEY COM NEW	Stock	617446448	1	18	SH		SOLE		0	0	1
NIC INC COM	Stock	62914B100	1,031	60,100	SH		SOLE		0	0	1,031
NVE CORP COM NEW ISIN#US6294452064	Stock	629445206	571	7,231	SH		SOLE		0	0	571
NATIONAL RESH CORP CL A	Stock	637372202	611	16,200	SH		SOLE		0	0	611
NATIONAL RETAIL PPTYS INC COM ISIN#US6374171063	Stock	637417106	42	1,000	SH		SOLE		0	0	42
NEOGEN CORP COM	Stock	640491106	662	8,550	SH		SOLE		0	0	662
NEOGENOMICS INC COM NEW	Stock	64049M209	11,902	1,069,374	SH		SOLE		0	0	11,902
NEW MEDIA INVT GROUP INC COM	Stock	64704V106	1,102	74,500	SH		SOLE		0	0	1,102
NEW RESIDENTIAL INVT CORP COM NEW	Stock	64828T201	75	4,500	SH		SOLE		0	0	75
NOKIA CORP SPONSORED ADR	Stock	654902204	1	166	SH		SOLE		0	0	1
NORFOLK SOUTHN CORP COM	Stock	655844108	212	1,600	SH		SOLE		0	0	212
NORTHROP GRUMMAN CORP COM	Stock	666807102	129	450	SH		SOLE		0	0	129
NORTHSTAR RLTY EUROPE CORP COM	Stock	66706L101	14	1,083	SH		SOLE		0	0	14
NOVARTIS AG SPONSORED ADR	Stock	66987V109	9	100	SH		SOLE		0	0	9
NOVO NORDISK A.S. ADR FORMERLY NOVO INDUSTRIE A.S. ADR SAME CUSIP	Stock	670100205	156	3,250	SH		SOLE		0	0	156
NUSTAR ENERGY LP UNIT COM	Stock	67058H102	229	5,630	SH		SOLE		0	0	229
NUTANIX INC COM	Stock	67059N108	343	15,300	SH		SOLE		0	0	343
OCCIDENTAL PETE CORP COM	Stock	674599105	35	550	SH		SOLE		0	0	35
ONVIA INC COM	Stock	68338T403	57	12,162	SH		SOLE		0	0	57
ORACLE CORP COM	Stock	68389X105	19	394	SH		SOLE		0	0	19
PDF SOLUTIONS INC COM	Stock	693282105	20,073	1,295,900	SH		SOLE		0	0	20,073
PRGX GLOBAL INTL COM NEW	Stock	69357C503	376	53,695	SH		SOLE		0	0	376
PTC INC COM	Stock	69370C100	2,023	35,950	SH		SOLE		0	0	2,023
PAYCHEX INC COM	Stock	704326107	144	2,400	SH		SOLE		0	0	144
PAYPAL HLDGS INC COM	Stock	70450Y103	66	1,034	SH		SOLE		0	0	66
PEPSICO INC COM	Stock	713448108	100	900	SH		SOLE		0	0	100
PFIZER INC COM	Stock	717081103	5,128	143,650	SH		SOLE		0	0	5,128
PHILIP MORRIS INTL INC COM	Stock	718172109	155	1,400	SH		SOLE		0	0	155
PLAINS ALL AMERICAN PIPELINE L P UNIT LTD PARTNERSHIP INT	Stock	726503105	120	5,685	SH		SOLE		0	0	120
PROCTER & GAMBLE CO COM	Stock	742718109	209	2,300	SH		SOLE		0	0	209
QUALITY CARE PPTYS INC COM	Stock	747545101	25	1,600	SH		SOLE		0	0	25
QUOTIENT TECHNOLOGY INC COM	Stock	749119103	11,613	742,050	SH		SOLE		0	0	11,613
REIS INC COM	Stock	75936P105	5,493	305,143	SH		SOLE		0	0	5,493
REVOLUTION LTG TECHNOLOGIES INC COM NEW	Stock	76155G206	4,428	681,291	SH		SOLE		0	0	4,428
SPDR GOLD TR GOLD SHS	Stock	78463V107	19	160	SH		SOLE		0	0	19
SCHLUMBERGER LTD COM ISIN# AN8068571086	Stock	806857108	58	835	SH		SOLE		0	0	58
SEMPRA ENERGY COM	Stock	816851109	91	800	SH		SOLE		0	0	91
SENOMYX INC COM	Stock	81724Q107	202	333,151	SH		SOLE		0	0	202
SIRIUS XM HLDGS INC COM	Stock	82968B103	0	9	SH		SOLE		0	0	0
SMITH MICRO SOFTWARE INC COM NEW	Stock	832154207	39	34,775	SH		SOLE		0	0	39
SONUS NETWORKS INC C/A EFF 10/30/17 1 OLD/1 NEW CU 83570V107 SONUS NETWORKS INC NEW	Stock	835916503	6,028	787,930	SH		SOLE		0	0	6,028
SUBURBAN PROPANE PARTNERS L P UNIT LTD PARTNERSHIP INT	Stock	864482104	144	5,513	SH		SOLE		0	0	144
SYNACOR INC COM	Stock	871561106	147	54,345	SH		SOLE		0	0	147
SYSCO CORP COM	Stock	871829107	76	1,400	SH		SOLE		0	0	76
TICC CAP CORP COM	Stock	87244T109	52	7,600	SH		SOLE		0	0	52
TARGA RES CORP COM	Stock	87612G101	21	434	SH		SOLE		0	0	21
TESLA INC COM	Stock	88160R101	17	50	SH		SOLE		0	0	17
TEVA PHARMACEUTICAL INDUSTRIES LTD ADR ISIN#US8816242098	Stock	881624209	2,567	145,839	SH		SOLE		0	0	2,567
TEXAS INSTRUMENTS INC	Stock	882508104	270	3,012	SH		SOLE		0	0	270
3D SYS CORP DEL COM NEW	Stock	88554D205	1,001	74,766	SH		SOLE		0	0	1,001
3M CO COM	Stock	88579Y101	1,399	6,665	SH		SOLE		0	0	1,399
TRANSACT TECHNOLOGIES INC COM	Stock	892918103	1,488	152,594	SH		SOLE		0	0	1,488
TYME TECHNOLOGIES INC COM	Stock	90238J103	26	5,000	SH		SOLE		0	0	26
UNILEVER PLC SPON ADR NEW ISIN#US9047677045	Stock	904767704	84	1,445	SH		SOLE		0	0	84
UNITED PARCEL SVC INC CL B	Stock	911312106	2,341	19,490	SH		SOLE		0	0	2,341
UNITEDHEALTH GROUP INC COM	Stock	91324P102	98	500	SH		SOLE		0	0	98
VANECK VECTORS ETF TR GOLD MINERS ETF	Stock	92189F106	46	2,000	SH		SOLE		0	0	46
VANECK VECTORS ETF TR JR GOLD MINERS ETF	Stock	92189F791	1	35	SH		SOLE		0	0	1
VENTAS INC COM	Stock	92276F100	26	400	SH		SOLE		0	0	26
VERIZON COMMUNICATIONS INC COM	Stock	92343V104	250	5,051	SH		SOLE		0	0	250
VODAFONE GROUP PLC NEW SPONSORED ADR NO PAR	Stock	92857W308	47	1,636	SH		SOLE		0	0	47
VONAGE HLDGS CORP COM	Stock	92886T201	6,672	819,700	SH		SOLE		0	0	6,672
WEC ENERGY GROUP INC COM	Stock	92939U106	157	2,500	SH		SOLE		0	0	157
WESTERN GAS PARTNERS LP COM UNIT REPSTG LTD PARTNER INT	Stock	958254104	128	2,500	SH		SOLE		0	0	128
WEYERHAEUSER CO	Stock	962166104	1,933	56,800	SH		SOLE		0	0	1,933
WILLIAMS COS INC COM	Stock	969457100	30	1,000	SH		SOLE		0	0	30
YUM BRANDS INC COM	Stock	988498101	3,355	45,575	SH		SOLE		0	0	3,355
ZOETIS INC CL A	Stock	98978V103	3,094	48,530	SH		SOLE		0	0	3,094
ALLEGION PUB LTD CO ORD SHS ISIN#IE00BFRT3W74	Stock	G0176J109	86	999	SH		SOLE		0	0	86
ALLERGAN PLC COM SHS ISIN#IE00BY9D5467	Stock	G0177J108	37	181	SH		SOLE		0	0	37
INGERSOLL RAND PLC SHS ISIN#IE00B6330302	Stock	G47791101	254	2,850	SH		SOLE		0	0	254
NOBLE CORP PLC SHS USD ISIN#GB00BFG3KF26	Stock	G65431101	4	800	SH		SOLE		0	0	4
SEAGATE TECHNOLOGY PLC SHS ISIN#IE00B58JVZ52	Stock	G7945M107	76	2,300	SH		SOLE		0	0	76
KORNIT-DIGITAL LTD SHS ISIN#IL0011216723	Stock	M6372Q113	134	8,758	SH		SOLE		0	0	134
CIMPRESS N V SHS EURO ISIN#NL0009272269	Stock	N20146101	10	100	SH		SOLE		0	0	10