ARK Investment Management 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
2U Inc	Common Stock	90214J101	14,179	188,571	SH		OTR		142,150	0	46,421
3D Systems Corp	Common Stock	88554D205	3,447	182,377	SH		SOLE		182,377	0	0
3M Co	Common Stock	88579Y101	67	319	SH		SOLE		319	0	0
Adobe Inc	Common Stock	00724F101	11,662	43,201	SH		SOLE		43,201	0	0
Advanced Micro Devices Inc	Common Stock	007903107	19,775	640,180	SH		SOLE		640,180	0	0
Aerovironment Inc	Common Stock	008073108	11,601	103,426	SH		OTR		41,919	0	61,507
Alibaba Group Holding Ltd	ADR	01609W102	22,340	135,592	SH		OTR		85,434	5,329	44,829
Align Technology Inc	Common Stock	016255101	4,688	11,982	SH		SOLE		11,982	0	0
Allegheny Technologies Inc	Common Stock	01741R102	71	2,412	SH		SOLE		2,412	0	0
Alphabet Inc	Common Stock	02079K107	18,492	15,494	SH		OTR		11,242	0	4,252
Amazon.com Inc	Common Stock	023135106	76,226	38,056	SH		OTR		29,764	1,144	7,148
AMETEK Inc	Common Stock	031100100	662	8,369	SH		SOLE		8,369	0	0
ANSYS Inc	Common Stock	03662Q105	4,013	21,497	SH		SOLE		21,497	0	0
Apple Inc	Common Stock	037833100	60,359	267,382	SH		OTR		203,661	8,923	54,798
Aptiv PLC	Common Stock	G6095L109	51,413	612,785	SH		OTR		452,598	30,231	129,956
AquaBounty Technologies Inc	Common Stock	03842K200	794	247,432	SH		SOLE		247,432	0	0
Arconic Inc	Common Stock	03965L100	668	30,341	SH		SOLE		30,341	0	0
Arcturus Therapeutics Ltd	Common Stock	M1492T105	6,840	773,772	SH		SOLE		773,772	0	0
Arkema SA	Common Stock	F0392W125	65	525	SH		SOLE		525	0	0
Arrk Corp	Common Stock	J0198N101	598	595,101	SH		SOLE		595,101	0	0
ASX Ltd	Common Stock	Q0604U105	69	1,579	SH		SOLE		1,579	0	0
athenahealth Inc	Common Stock	04685W103	43	320	SH		SOLE		320	0	0
Attunity Ltd	Common Stock	M15332121	842	44,600	SH		SOLE		44,600	0	0
AudioCodes Ltd	Common Stock	M15342104	692	68,833	SH		SOLE		68,833	0	0
Autodesk Inc	Common Stock	052769106	5,839	37,402	SH		SOLE		37,402	0	0
Baidu Inc	ADR	056752108	139,363	609,422	SH		OTR		455,235	24,303	129,884
Bayer AG	Common Stock	D0712D163	35	390	SH		OTR		0	390	0
BeiGene Ltd	ADR	07725L102	3,480	20,207	SH		SOLE		20,207	0	0
Bellicum Pharmaceuticals Inc	Common Stock	079481107	3,636	590,214	SH		SOLE		590,214	0	0
Bertrandt AG	Common Stock	D1014N107	549	5,947	SH		SOLE		5,947	0	0
Bezeq The Israeli Telecommunic	Common Stock	M2012Q100	584	503,466	SH		SOLE		503,466	0	0
Biogen Inc	Common Stock	09062X103	7,949	22,498	SH		SOLE		22,498	0	0
Bitcoin Investment Trust	Open-End Fund	09173T108	14,345	1,806,723	SH		OTR		540,935	544,031	721,757
Bluebird Bio Inc	Common Stock	09609G100	58,494	400,644	SH		OTR		294,186	17,666	88,792
Bristol-Myers Squibb Co	Common Stock	110122108	3,432	55,283	SH		SOLE		55,283	0	0
Camtek Ltd/Israel	Common Stock	M20791105	583	68,052	SH		SOLE		68,052	0	0
Carpenter Technology Corp	Common Stock	144285103	67	1,139	SH		SOLE		1,139	0	0
Cboe Global Markets Inc	Common Stock	12503M108	51	535	SH		SOLE		535	0	0
Celgene Corp	Common Stock	151020104	13,239	147,935	SH		SOLE		147,935	0	0
Cellcom Israel Ltd	Common Stock	M2196U109	654	94,696	SH		SOLE		94,696	0	0
Cellectis SA	ADR	15117K103	11,120	394,042	SH		OTR		364,877	29,165	0
Ceragon Networks Ltd	Common Stock	M22013102	482	143,143	SH		SOLE		143,143	0	0
Cerus Corp	Common Stock	157085101	46,858	6,499,032	SH		OTR		4,800,353	57,406	1,641,273
Charles Schwab Corp/The	Common Stock	808513105	184	3,738	SH		SOLE		3,738	0	0
Check Point Software Technolog	Common Stock	M22465104	577	4,901	SH		SOLE		4,901	0	0
Cognex Corp	Common Stock	192422103	3,366	60,296	SH		SOLE		60,296	0	0
Compugen Ltd	Common Stock	M25722105	26,583	6,904,667	SH		OTR		6,711,954	49,584	143,129
Cornerstone OnDemand Inc	Common Stock	21925Y103	2,042	35,978	SH		SOLE		35,978	0	0
CRISPR Therapeutics AG	Common Stock	H17182108	64,467	1,453,590	SH		OTR		1,105,949	66,138	281,503
CyberArk Software Ltd	Common Stock	M2682V108	623	7,800	SH		SOLE		7,800	0	0
Daimler AG	ADR	233825207	2,244	142,921	SH		SOLE		142,921	0	0
Danel Adir Yeoshua Ltd	Common Stock	M27013107	655	12,170	SH		SOLE		12,170	0	0
Dassault Systemes SE	Common Stock	F2457H472	1,819	12,165	SH		SOLE		12,165	0	0
Deere & Co	Common Stock	244199105	2,589	17,222	SH		SOLE		17,222	0	0
DowDuPont Inc	Common Stock	26078J100	62	968	SH		SOLE		968	0	0
Eastman Chemical Co	Common Stock	277432100	61	636	SH		SOLE		636	0	0
Eastman Kodak Co	Common Stock	277461406	52	16,866	SH		SOLE		16,866	0	0
Ebix Inc	Common Stock	278715206	147	1,862	SH		SOLE		1,862	0	0
Editas Medicine Inc	Common Stock	28106W103	88,900	2,793,854	SH		OTR		2,031,690	129,446	632,718
Elbit Systems Ltd	Common Stock	M3760D101	2,547	20,292	SH		SOLE		20,292	0	0
Evelo Biosciences Inc	Common Stock	299734103	2,883	236,685	SH		SOLE		236,685	0	0
Evogene Ltd	Common Stock	M4119S104	754	242,570	SH		SOLE		242,570	0	0
Evonik Industries AG	Common Stock	D2R90Y117	59	1,642	SH		SOLE		1,642	0	0
ExOne Co/The	Common Stock	302104104	19,169	2,022,084	SH		OTR		1,641,265	0	380,819
FANUC Corp	Common Stock	J13440102	42	220	SH		OTR		0	220	0
FARO Technologies Inc	Common Stock	311642102	686	10,659	SH		SOLE		10,659	0	0
FirstRand Ltd	Common Stock	S5202Z131	59	13,580	SH		SOLE		13,580	0	0
Fiserv Inc	Common Stock	337738108	154	1,873	SH		SOLE		1,873	0	0
Foamix Pharmaceuticals Ltd	Common Stock	M46135105	572	99,901	SH		SOLE		99,901	0	0
Galmed Pharmaceuticals Ltd	Common Stock	M47238106	487	35,846	SH		SOLE		35,846	0	0
General Electric Co	Common Stock	369604103	478	42,376	SH		SOLE		42,376	0	0
General Motors Co	Common Stock	37045V100	2,723	80,861	SH		SOLE		80,861	0	0
Gilat Satellite Networks Ltd	Common Stock	M51474118	539	61,247	SH		SOLE		61,247	0	0
GMO internet Inc	Common Stock	J1822R104	14	800	SH		SOLE		800	0	0
GrubHub Inc	Common Stock	400110102	3,583	25,845	SH		SOLE		25,845	0	0
Guidewire Software Inc	Common Stock	40171V100	344	3,407	SH		SOLE		3,407	0	0
HDFC Bank Ltd	ADR	40415F101	122	1,297	SH		SOLE		1,297	0	0
Henkel AG & Co KGaA	Common Stock	D3207M102	53	499	SH		SOLE		499	0	0
Hexagon AB	Common Stock	W40063104	635	10,824	SH		SOLE		10,824	0	0
Hexcel Corp	Common Stock	428291108	62	926	SH		SOLE		926	0	0
Hilan Ltd	Common Stock	M5299H123	603	24,021	SH		SOLE		24,021	0	0
Hortonworks Inc	Common Stock	440894103	19,463	853,284	SH		OTR		578,853	0	274,431
HP Inc	Common Stock	40434L105	3,094	120,077	SH		SOLE		120,077	0	0
HubSpot Inc	Common Stock	443573100	13,718	90,881	SH		SOLE		90,881	0	0
Illumina Inc	Common Stock	452327109	99,408	270,821	SH		OTR		202,793	11,022	57,006
Incyte Corp	Common Stock	45337C102	4,396	63,643	SH		SOLE		63,643	0	0
Infineon Technologies AG	ADR	45662N103	17	738	SH		SOLE		738	0	0
Inovio Pharmaceuticals Inc	Common Stock	45773H201	10,659	1,917,071	SH		OTR		1,894,675	22,396	0
Intec Pharma Ltd	Common Stock	M53644106	609	107,761	SH		SOLE		107,761	0	0
Intellia Therapeutics Inc	Common Stock	45826J105	164,673	5,753,790	SH		OTR		4,546,249	285,407	922,134
Interactive Brokers Group Inc	Common Stock	45841N107	335	6,048	SH		SOLE		6,048	0	0
Intercontinental Exchange Inc	Common Stock	45866F104	5,162	68,927	SH		SOLE		68,927	0	0
Intuit Inc	Common Stock	461202103	297	1,307	SH		SOLE		1,307	0	0
Intuitive Surgical Inc	Common Stock	46120E602	2,072	3,609	SH		SOLE		3,609	0	0
Invitae Corp	Common Stock	46185L103	153,417	9,170,156	SH		OTR		7,456,586	86,832	1,626,738
Ionis Pharmaceuticals Inc	Common Stock	462222100	11,828	229,318	SH		OTR		169,227	0	60,091
Iovance Biotherapeutics Inc	Common Stock	462260100	4,779	424,820	SH		SOLE		424,820	0	0
Ituran Location and Control Lt	Common Stock	M6158M104	624	18,127	SH		SOLE		18,127	0	0
JD.com Inc	ADR	47215P106	87,754	3,363,496	SH		OTR		2,698,552	119,248	545,696
K2M Group Holdings Inc	Common Stock	48273J107	724	26,470	SH		SOLE		26,470	0	0
Kamada Ltd	Common Stock	M6240T109	606	97,391	SH		SOLE		97,391	0	0
Koninklijke DSM NV	Common Stock	N5017D122	64	606	SH		SOLE		606	0	0
Kratos Defense & Security Solu	Common Stock	50077B207	1,095	74,101	SH		SOLE		74,101	0	0
LendingClub Corp	Common Stock	52603A109	69,847	18,001,802	SH		OTR		14,610,649	146,305	3,244,848
LendingTree Inc	Common Stock	52603B107	33,862	147,160	SH		OTR		121,027	5,547	20,586
magicJack VocalTec Ltd	Common Stock	M6787E101	537	64,357	SH		SOLE		64,357	0	0
Materialise NV	ADR	57667T100	34,955	2,533,004	SH		OTR		2,312,953	10,716	209,335
Matrix IT Ltd	Common Stock	M6859E153	592	49,009	SH		SOLE		49,009	0	0
Mazor Robotics Ltd	ADR	57886P103	6,141	105,304	SH		SOLE		105,304	0	0
Medidata Solutions Inc	Common Stock	58471A105	58,951	804,133	SH		OTR		636,697	28,723	138,713
Medtronic PLC	Common Stock	G5960L103	648	6,588	SH		SOLE		6,588	0	0
Mellanox Technologies Ltd	Common Stock	M51363113	477	6,489	SH		SOLE		6,489	0	0
MercadoLibre Inc	Common Stock	58733R102	41,655	122,347	SH		OTR		98,656	4,187	19,504
MGI Digital Graphic Technology	Common Stock	F4090S113	1,984	35,597	SH		SOLE		35,597	0	0
MGT Capital Investments Inc	Common Stock	55302P202	309	2,804,453	SH		OTR		2,765,809	38,644	0
Microsoft Corp	Common Stock	594918104	15,622	136,590	SH		SOLE		136,590	0	0
Moog Inc	Common Stock	615394202	627	7,298	SH		SOLE		7,298	0	0
MSCI Inc	Common Stock	55354G100	139	783	SH		SOLE		783	0	0
Nano Dimension Ltd	ADR	63008G104	1,011	513,077	SH		SOLE		513,077	0	0
NanoString Technologies Inc	Common Stock	63009R109	61,234	3,434,304	SH		OTR		3,349,399	84,905	0
Nasdaq Inc	Common Stock	631103108	192	2,232	SH		SOLE		2,232	0	0
Netflix Inc	Common Stock	64110L106	76,950	205,676	SH		OTR		161,332	9,944	34,400
Nice Ltd	ADR	653656108	565	4,934	SH		SOLE		4,934	0	0
Nintendo Co Ltd	Common Stock	J51699106	62	171	SH		OTR		0	171	0
Nova Measuring Instruments Ltd	Common Stock	M7516K103	497	18,879	SH		SOLE		18,879	0	0
NVIDIA Corp	Common Stock	67066G104	89,601	318,842	SH		OTR		249,525	9,258	60,059
NXP Semiconductors NV	Common Stock	N6596X109	2,910	34,038	SH		SOLE		34,038	0	0
Opera Ltd	ADR	68373M107	5,681	631,887	SH		OTR		544,877	0	87,010
Orbotech Ltd	Common Stock	M75253100	512	8,620	SH		SOLE		8,620	0	0
Organovo Holdings Inc	Common Stock	68620A104	20,644	17,951,107	SH		OTR		17,819,321	131,786	0
Pacific Biosciences of Califor	Common Stock	69404D108	42,125	7,786,485	SH		OTR		7,708,358	78,127	0
Partner Communications Co Ltd	Common Stock	M78465107	729	137,612	SH		SOLE		137,612	0	0
PayPal Holdings Inc	Common Stock	70450Y103	11,987	136,465	SH		SOLE		136,465	0	0
Pluristem Therapeutics Inc	Common Stock	72940R102	3,760	2,892,231	SH		SOLE		2,892,231	0	0
Pointer Telocation Ltd	Common Stock	M7946T104	595	45,757	SH		SOLE		45,757	0	0
PolyOne Corp	Common Stock	73179P106	60	1,362	SH		SOLE		1,362	0	0
Praxair Inc	Common Stock	74005P104	62	388	SH		SOLE		388	0	0
Prodways Group SA	Common Stock	F7329W102	2,586	549,751	SH		SOLE		549,751	0	0
Proto Labs Inc	Common Stock	743713109	13,076	80,843	SH		OTR		39,994	0	40,849
PTC Inc	Common Stock	69370C100	2,026	19,077	SH		SOLE		19,077	0	0
RADCOM Ltd	Common Stock	M81865111	287	25,497	SH		SOLE		25,497	0	0
Radware Ltd	Common Stock	M81873107	522	19,730	SH		SOLE		19,730	0	0
Rakuten Inc	ADR	75102W108	2,087	269,520	SH		SOLE		269,520	0	0
Rakuten Inc	Common Stock	J64264104	78	10,000	SH		SOLE		10,000	0	0
Red Hat Inc	Common Stock	756577102	59,141	433,968	SH		OTR		341,890	15,782	76,296
Redfin Corp	Common Stock	75737F108	181	9,693	SH		SOLE		9,693	0	0
Redhill Biopharma Ltd	ADR	757468103	434	49,121	SH		SOLE		49,121	0	0
Regeneron Pharmaceuticals Inc	Common Stock	75886F107	9,390	23,240	SH		SOLE		23,240	0	0
Renishaw PLC	Common Stock	G75006117	2,318	37,465	SH		SOLE		37,465	0	0
Rockwell Automation Inc	Common Stock	773903109	1,981	10,562	SH		SOLE		10,562	0	0
Rubius Therapeutics Inc	Common Stock	78116T103	4,518	188,268	SH		OTR		147,490	40,778	0
salesforce.com Inc	Common Stock	79466L302	39,997	251,509	SH		OTR		185,702	11,089	54,718
Sandvik AB	Common Stock	W74857165	65	3,672	SH		SOLE		3,672	0	0
Sapiens International Corp NV	Common Stock	G7T16G103	703	53,187	SH		SOLE		53,187	0	0
SBI Holdings Inc/Japan	Common Stock	J6991H100	196	6,300	SH		SOLE		6,300	0	0
Seres Therapeutics Inc	Common Stock	81750R102	30,669	4,040,735	SH		OTR		3,247,770	182,117	610,848
ServiceNow Inc	Common Stock	81762P102	6,486	33,152	SH		SOLE		33,152	0	0
Shopify Inc	Common Stock	82509L107	17,037	103,595	SH		SOLE		103,595	0	0
Siemens AG	Common Stock	D69671218	543	4,239	SH		SOLE		4,239	0	0
Silicom Ltd	Common Stock	M84116108	580	14,299	SH		SOLE		14,299	0	0
SLM Solutions Group AG	Common Stock	D6T690109	1,896	78,120	SH		SOLE		78,120	0	0
SoftBank Group Corp	ADR	83404D109	7,749	155,768	SH		SOLE		155,768	0	0
SoftBank Group Corp	Common Stock	J75963108	56	555	SH		OTR		0	555	0
SolarEdge Technologies Inc	Common Stock	83417M104	376	9,985	SH		SOLE		9,985	0	0
Spark Therapeutics Inc	Common Stock	84652J103	7	129	SH		SOLE		129	0	0
Splunk Inc	Common Stock	848637104	43,468	359,506	SH		OTR		284,727	17,042	57,737
Spotify Technology SA	Common Stock	L8681T102	50,186	277,532	SH		OTR		210,201	11,221	56,110
Square Inc	Common Stock	852234103	102,154	1,031,750	SH		OTR		757,966	38,555	235,229
Starbucks Corp	Common Stock	855244109	212	3,727	SH		SOLE		3,727	0	0
Stratasys Ltd	Common Stock	M85548101	159,673	6,909,266	SH		OTR		5,075,614	296,658	1,536,994
Stryker Corp	Common Stock	863667101	599	3,370	SH		SOLE		3,370	0	0
Suny Cellular Communication Lt	Common Stock	M8708U107	515	1,061,983	SH		SOLE		1,061,983	0	0
Syros Pharmaceuticals Inc	Common Stock	87184Q107	26,462	2,221,870	SH		OTR		1,937,207	23,615	261,048
Taiwan Semiconductor Manufactu	ADR	874039100	43,649	988,428	SH		OTR		855,459	27,534	105,435
Taro Pharmaceutical Industries	Common Stock	M8737E108	466	4,743	SH		SOLE		4,743	0	0
Teladoc Health Inc	Common Stock	87918A105	7,753	89,791	SH		SOLE		89,791	0	0
Tencent Holdings Ltd	ADR	88032Q109	111,170	2,722,096	SH		OTR		2,193,489	92,136	436,471
Teradyne Inc	Common Stock	880770102	64,026	1,731,366	SH		OTR		1,232,560	83,196	415,610
Tesla Inc	Common Stock	88160R101	197,710	746,725	SH		OTR		710,245	36,480	0
Teva Pharmaceutical Industries	ADR	881624209	497	23,063	SH		SOLE		23,063	0	0
Together Startup Network Ltd	Common Stock	M1499P106	513	285,181	SH		SOLE		285,181	0	0
Toray Industries Inc	Common Stock	J89494116	62	8,236	SH		SOLE		8,236	0	0
Tower Semiconductor Ltd	Common Stock	M87915274	524	24,089	SH		SOLE		24,089	0	0
Toyota Motor Corp	ADR	892331307	2,091	16,816	SH		SOLE		16,816	0	0
Trade Me Group Ltd	Common Stock	Q9162N106	15	4,434	SH		SOLE		4,434	0	0
TransUnion	Common Stock	89400J107	181	2,456	SH		SOLE		2,456	0	0
Trimble Inc	Common Stock	896239100	7,971	183,417	SH		SOLE		183,417	0	0
Twitter Inc	Common Stock	90184L102	117,342	4,123,045	SH		OTR		3,157,494	165,784	799,767
Ultra Clean Holdings Inc	Common Stock	90385V107	456	36,310	SH		SOLE		36,310	0	0
United Parcel Service Inc	Common Stock	911312106	603	5,164	SH		SOLE		5,164	0	0
UroGen Pharma Ltd	Common Stock	M96088105	532	11,258	SH		SOLE		11,258	0	0
Veracyte Inc	Common Stock	92337F107	37,635	3,940,804	SH		OTR		3,913,590	27,214	0
Verisk Analytics Inc	Common Stock	92345Y106	186	1,546	SH		SOLE		1,546	0	0
Visa Inc	Common Stock	92826C839	180	1,198	SH		SOLE		1,198	0	0
Wirecard AG	ADR	97654L108	72	663	SH		SOLE		663	0	0
Wix.com Ltd	Common Stock	M98068105	598	4,992	SH		SOLE		4,992	0	0
Workday Inc	Common Stock	98138H101	195	1,334	SH		SOLE		1,334	0	0
Xero Ltd	Common Stock	Q98665104	51	1,434	SH		SOLE		1,434	0	0
Xilinx Inc	Common Stock	983919101	50,939	635,388	SH		OTR		510,340	20,172	104,876
YY Inc	ADR	98426T106	3,511	46,859	SH		SOLE		46,859	0	0
Zillow Group Inc	Common Stock	98954M200	43,708	987,749	SH		OTR		779,271	36,089	172,389
Zuora Inc	Common Stock	98983V106	6,916	299,269	SH		SOLE		299,269	0	0