Canton Hathaway 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
Abbott Laboratories	COM	002824100	39	500	SH		SOLE		0	0	500
Adobe Systems Inc	COM	00724F101	26	82	SH		SOLE		0	0	82
Air Products & Chemicals Inc	COM	009158106	399	2,000	SH		SOLE		0	0	2,000
Alibaba Group Holding Ltd ADR	ADR	01609W102	11	55	SH		SOLE		0	0	55
AllianceBernstein Holding LP	LP UNIT	01881G106	223	12,000	SH		SOLE		0	0	12,000
Alphabet Inc	COM	02079K107	2,230	1,918	SH		SOLE		0	0	1,918
Alphabet Inc	COM	02079K305	381	328	SH		SOLE		0	0	328
Amazon.Com Inc	COM	023135106	2,716	1,393	SH		SOLE		0	0	1,393
American Express Co	COM	025816109	283	3,300	SH		SOLE		0	0	3,300
American Shared Hospital Svcs	COM	029595105	62	40,100	SH		SOLE		0	0	40,100
American Wtr Wks Co Inc	COM	030420103	120	1,000	SH		SOLE		0	0	1,000
Amgen Inc	COM	031162100	2,347	11,579	SH		SOLE		0	0	11,579
Aon Plc Com Usd	COM	G0408V102	33	200	SH		SOLE		0	0	200
Apollo Global Management LLC	COM	03768E105	151	4,500	SH		SOLE		0	0	4,500
Apple Inc	COM	037833100	2,957	11,627	SH		SOLE		0	0	11,627
Ares Capital Corp	COM	04010L103	226	21,000	SH		SOLE		0	0	21,000
Ares Commercial Real Estate Corp	COM	04013V108	91	13,000	SH		SOLE		0	0	13,000
At&T Inc	COM	00206R102	248	8,500	SH		SOLE		0	0	8,500
Automatic Data Processing Inc	COM	053015103	11	80	SH		SOLE		0	0	80
Bank New York Mellon Corp	COM	064058100	25	750	SH		SOLE		0	0	750
Bank of America Corporation	COM	060505104	19	908	SH		SOLE		0	0	908
Berkshire Hathaway Inc A	COM	084670108	85,408	314	SH		SOLE		0	0	314
Berkshire Hathaway Inc B	COM	084670702	1,848	10,106	SH		SOLE		0	0	10,106
Bhp Billiton Ltd Adr	ADR	088606108	26	700	SH		SOLE		0	0	700
Blackrock Inc	COM	09247X101	548	1,245	SH		SOLE		0	0	1,245
Blackstone Group Lp	COM	09260D107	725	15,900	SH		SOLE		0	0	15,900
Bristol Myers Squibb	COM	110122108	381	6,840	SH		SOLE		0	0	6,840
Brookfield Renewable Partners LP	COM	G16258108	64	1,500	SH		SOLE		0	0	1,500
Brookline Bancorp Inc	COM	11373M107	3,972	352,150	SH		SOLE		0	0	352,150
Ciena Corp	COM	171779309	1,062	26,673	SH		SOLE		0	0	26,673
Cisco Sys Inc	COM	17275R102	472	12,000	SH		SOLE		0	0	12,000
Coca-Cola Co	COM	191216100	108	2,430	SH		SOLE		0	0	2,430
Comcast Corp	COM	20030N101	830	24,152	SH		SOLE		0	0	24,152
Costco Wholesale Corp	COM	22160K105	12	41	SH		SOLE		0	0	41
CrowdStrike Holdings Inc	COM	22788C105	72	1,300	SH		SOLE		0	0	1,300
Crown Castle International Corp	COM	22822V101	731	5,059	SH		SOLE		0	0	5,059
CSP Inc	COM	126389105	16	2,237	SH		SOLE		0	0	2,237
Cvs Health Corp	COM	126650100	326	5,500	SH		SOLE		0	0	5,500
Danaher Corp	COM	235851102	1,735	12,533	SH		SOLE		0	0	12,533
Disney Walt Co	COM	254687106	370	3,827	SH		SOLE		0	0	3,827
Dominion Energy Inc	COM	25746U109	58	800	SH		SOLE		0	0	800
Duke Energy Corp	COM	26441C204	12	147	SH		SOLE		0	0	147
Dunkin Brands Group Inc	COM	265504100	53	1,000	SH		SOLE		0	0	1,000
Eaton Corp PLC	COM	G29183103	388	5,000	SH		SOLE		0	0	5,000
Eli Lilly and Co	COM	532457108	69	500	SH		SOLE		0	0	500
Enterprise Prods Partners Lp	LP UNIT	293792107	333	23,320	SH		SOLE		0	0	23,320
Exact Sciences Corp	COM	30063P105	90	1,550	SH		SOLE		0	0	1,550
Exelon Corp	COM	30161N101	28	750	SH		SOLE		0	0	750
Facebook Inc	COM	30303M102	280	1,676	SH		SOLE		0	0	1,676
Fastenal Co	COM	311900104	288	9,200	SH		SOLE		0	0	9,200
Ferguson PLC	COM	G3421J106	94	1,500	SH		SOLE		0	0	1,500
Fidelity Consumer Disc ETF	ETF	316092204	407	10,795	SH		SOLE		0	0	10,795
Fidelity Consumer Spls ETF	ETF	316092303	516	15,941	SH		SOLE		0	0	15,941
Fidelity Health Care ETF	ETF	316092600	637	14,816	SH		SOLE		0	0	14,816
Fidelity Real Estate ETF	ETF	316092857	359	17,251	SH		SOLE		0	0	17,251
Fidelity Technology ETF	ETF	316092808	595	9,496	SH		SOLE		0	0	9,496
Fidelity Telecom Svc ETF	ETF	316092873	458	15,786	SH		SOLE		0	0	15,786
Fidelity Utilities ETF	ETF	316092865	745	20,749	SH		SOLE		0	0	20,749
Fortive Corp Com	COM	34959J108	166	3,000	SH		SOLE		0	0	3,000
Gilead Sciences Inc	COM	375558103	42	564	SH		SOLE		0	0	564
Global X US Infrastructure Dev ETF	ETF	37954Y673	44	3,600	SH		SOLE		0	0	3,600
Goldman Sachs Group Inc	COM	38141G104	31	200	SH		SOLE		0	0	200
Great Lakes Dredge & Dock Corp	COM	390607109	78	9,400	SH		SOLE		0	0	9,400
Hannon Armstrong Sustainable Infrastructure Capita	COM	41068X100	396	19,410	SH		SOLE		0	0	19,410
Healthcare Tr Amer Inc	COM	42225P501	146	6,000	SH		SOLE		0	0	6,000
Home Depot Inc	COM	437076102	173	926	SH		SOLE		0	0	926
Huntington Bancshares Inc	COM	446150104	33	4,000	SH		SOLE		0	0	4,000
Industrial Select SPDR ETF	ETF	81369Y704	507	8,600	SH		SOLE		0	0	8,600
Intel Corp	COM	458140100	352	6,500	SH		SOLE		0	0	6,500
International Business Machines Corp	COM	459200101	288	2,600	SH		SOLE		0	0	2,600
iShares Core MSCI EAFE	ETF	46432F842	15	299	SH		SOLE		0	0	299
Ishares Core S&P Small-Cap E	ETF	464287804	15	267	SH		SOLE		0	0	267
iShares Core S&P Total US Stock Mkt ETF	ETF	464287150	34	592	SH		SOLE		0	0	592
iShares Gold Trust	ETF	464285105	85	5,627	SH		SOLE		0	0	5,627
iShares iBoxx Investment Grade Corp Bond ET	ETF	464287242	43	350	SH		SOLE		0	0	350
Ishares Inc Core Msci Emerging Mkts Etf	ETF	46434G103	17	425	SH		SOLE		0	0	425
Ishares Msci Emerging Markets Etf	ETF	464287234	45	1,305	SH		SOLE		0	0	1,305
iShares Nasdaq Biotechnology	ETF	464287556	309	2,872	SH		SOLE		0	0	2,872
Ishares Select Dividend Etf	ETF	464287168	229	3,115	SH		SOLE		0	0	3,115
iShares Silver Trust	ETF	46428Q109	19	1,444	SH		SOLE		0	0	1,444
Ishares Tr S&P US Pfd Stk	ETF	464288687	96	3,000	SH		SOLE		0	0	3,000
iShares US Aerospace & Defense ETF	ETF	464288760	37	260	SH		SOLE		0	0	260
iShares US Home Construction	ETF	464288752	14	497	SH		SOLE		0	0	497
iShares US Medical Devices	ETF	464288810	40	176	SH		SOLE		0	0	176
Johnson & Johnson	COM	478160104	970	7,394	SH		SOLE		0	0	7,394
Jpmorgan Chase & Co	COM	46625H100	1,886	20,945	SH		SOLE		0	0	20,945
Lithium Americas Corp	COM	53680Q207	87	32,800	SH		SOLE		0	0	32,800
Lockheed Martin Corp	COM	539830109	102	300	SH		SOLE		0	0	300
Lowe s Companies Inc	COM	548661107	163	1,900	SH		SOLE		0	0	1,900
Magellan Midstream Prtnrs Lp	LP UNIT	559080106	88	2,400	SH		SOLE		0	0	2,400
McCormick & Co Inc Non-Voting	COM	579780206	141	1,000	SH		SOLE		0	0	1,000
Medtronic Plc	COM	G5960L103	1,181	13,097	SH		SOLE		0	0	13,097
Merck & Co Inc	COM	58933Y105	466	6,058	SH		SOLE		0	0	6,058
Microsoft Corp	COM	594918104	3,427	21,731	SH		SOLE		0	0	21,731
MODERNA INC	COM	60770K107	251	8,380	SH		SOLE		0	0	8,380
Morgan Stanley	COM	617446448	204	6,000	SH		SOLE		0	0	6,000
Netflix Com Inc	COM	64110L106	51	136	SH		SOLE		0	0	136
NextEra Energy Inc	COM	65339F101	18	74	SH		SOLE		0	0	74
Nike Inc B	COM	654106103	103	1,245	SH		SOLE		0	0	1,245
Oracle Corp	COM	68389X105	29	600	SH		SOLE		0	0	600
Pagseguro Digital Ltd Com Cl A	COM	G68707101	183	9,480	SH		SOLE		0	0	9,480
PBF Logistics LP	LP UNIT	69318Q104	51	7,500	SH		SOLE		0	0	7,500
Pepsico Inc	COM	713448108	862	7,179	SH		SOLE		0	0	7,179
Pfizer Inc	COM	717081103	28	850	SH		SOLE		0	0	850
Phillips 66 Partners LP	LP UNIT	718549207	219	6,000	SH		SOLE		0	0	6,000
Procter And Gamble Co	COM	742718109	75	680	SH		SOLE		0	0	680
Prologis Inc	COM	74340W103	346	4,300	SH		SOLE		0	0	4,300
Public Storage	COM	74460D109	20	100	SH		SOLE		0	0	100
Simulations Plus Inc	COM	829214105	629	18,000	SH		SOLE		0	0	18,000
Spdr Gold Tr Gold Shs	ETF	78463V107	1,258	8,500	SH		SOLE		0	0	8,500
SPDR S&P 500 ETF	ETF	78462F103	130	505	SH		SOLE		0	0	505
SPDR S&P MidCap 400 ETF	ETF	78467Y107	30	115	SH		SOLE		0	0	115
SPDR S&P Software & Services ETF	ETF	78464A599	109	1,332	SH		SOLE		0	0	1,332
Spdr Ser Tr S&P Biotech Etf	ETF	78464A870	27	350	SH		SOLE		0	0	350
Splunk Inc	COM	848637104	442	3,500	SH		SOLE		0	0	3,500
Stag Indl Inc	COM	85254J102	98	4,358	SH		SOLE		0	0	4,358
Stanley Black & Decker Inc	COM	854502101	112	1,122	SH		SOLE		0	0	1,122
Starbucks Corp	COM	855244109	99	1,500	SH		SOLE		0	0	1,500
StoneCo Ltd	COM	G85158106	446	20,474	SH		SOLE		0	0	20,474
Sunrun Inc	COM	86771W105	384	38,035	SH		SOLE		0	0	38,035
Targa Res Corp	COM	87612G101	69	10,000	SH		SOLE		0	0	10,000
Thermo Fisher Scientific Inc	COM	883556102	227	801	SH		SOLE		0	0	801
Tjx Cos Inc	COM	872540109	33	700	SH		SOLE		0	0	700
United Parcel Service Inc Class B	COM	911312106	21	225	SH		SOLE		0	0	225
Vanguard 500 ETF	ETF	922908363	125	529	SH		SOLE		0	0	529
Vanguard Dividend Appreciation ETF	ETF	921908844	40	391	SH		SOLE		0	0	391
Vanguard Extended Market ETF	ETF	922908652	22	248	SH		SOLE		0	0	248
Vanguard FTSE Developed Markets ETF	ETF	921943858	39	1,180	SH		SOLE		0	0	1,180
Vanguard FTSE Emerging Markets ETF	ETF	922042858	17	508	SH		SOLE		0	0	508
Vanguard Scottsdale Fds Vanguard Short-T	ETF	92206C409	276	3,483	SH		SOLE		0	0	3,483
Vanguard Small-Cap ETF	ETF	922908751	17	150	SH		SOLE		0	0	150
Vanguard Tax-Exempt Bond ETF	ETF	922907746	32	612	SH		SOLE		0	0	612
Vanguard Value ETF	ETF	922908744	46	515	SH		SOLE		0	0	515
Verizon Communications	COM	92343V104	1,116	20,772	SH		SOLE		0	0	20,772
Visa Inc Com Cl A	COM	92826C839	2,307	14,320	SH		SOLE		0	0	14,320
Waste Management Inc	COM	94106L109	828	8,945	SH		SOLE		0	0	8,945
Yum China Hldgs Inc Com	COM	98850P109	533	12,500	SH		SOLE		0	0	12,500