Sentinel Pension Advisors 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
ALPS ETF TR	REIT DIVIDE DOGS	00162Q106	201	4,211	SH		SOLE		0	0	4,211
AMAZON COM INC	COM	023135106	214	65	SH		SOLE		0	0	65
AMERICAN CENTY ETF TR	AVANTIS EMGMKT	025072604	2,611	40,480	SH		SOLE		0	0	40,480
AMERICAN CENTY ETF TR	US SML CP VALU	025072877	1,293	17,097	SH		SOLE		0	0	17,097
APPLE INC	COM	037833100	1,361	9,615	SH		SOLE		0	0	9,615
ARCHER DANIELS MIDLAND CO	COM	039483102	337	5,624	SH		SOLE		0	0	5,624
BIOLIFE SOLUTIONS INC	COM NEW	09062W204	469	11,092	SH		SOLE		0	0	11,092
CAMBRIDGE BANCORP	COM	132152109	1,551	17,630	SH		SOLE		0	0	17,630
CISCO SYS INC	COM	17275R102	383	7,028	SH		SOLE		0	0	7,028
CREDIT SUISSE AG NASSAU BRH	LG CAP GRTH ENH	22542D423	223	318	SH		SOLE		0	0	318
FIDELITY MERRIMACK STR TR	TOTAL BD ETF	316188309	11,639	219,072	SH		SOLE		0	0	219,071
FIRST TR SR FLTG RATE INCOME	COM	33733U108	144	11,749	SH		SOLE		0	0	11,748
FIRST TR EXCH TRADED FD III	MANAGD MUN ETF	33739N108	849	14,960	SH		SOLE		0	0	14,960
FOCUS FINL PARTNERS INC	COM CL A	34417P100	2,500	47,744	SH		SOLE		0	0	47,744
FORD MTR CO DEL	COM	345370860	1,156	81,665	SH		SOLE		0	0	81,664
HYDROFARM HLDGS GROUP INC	COM	44888K209	284	7,504	SH		SOLE		0	0	7,504
INVESCO EXCH TRD SLF IDX FD	BULSHS 2021 CB	46138J700	11,141	528,278	SH		SOLE		0	0	528,277
INVESCO EXCH TRD SLF IDX FD	BULSHS 2023 CB	46138J866	11,850	546,857	SH		SOLE		0	0	546,856
INVESCO EXCH TRD SLF IDX FD	BULSHS 2022 CB	46138J882	12,295	571,053	SH		SOLE		0	0	571,053
ISHARES TR	S&P 100 ETF	464287101	475	2,406	SH		SOLE		0	0	2,405
ISHARES TR	CORE S&P TTL STK	464287150	3,627	36,868	SH		SOLE		0	0	36,867
ISHARES TR	CORE S&P500 ETF	464287200	1,498	3,477	SH		SOLE		0	0	3,477
ISHARES TR	CORE US AGGBD ET	464287226	995	8,668	SH		SOLE		0	0	8,668
ISHARES TR	NORTH AMERN NAT	464287374	1,513	51,514	SH		SOLE		0	0	51,514
ISHARES TR	RUS 1000 ETF	464287622	5,938	24,566	SH		SOLE		0	0	24,566
ISHARES TR	NATIONAL MUN ETF	464288414	538	4,629	SH		SOLE		0	0	4,629
ISHARES TR	0-5 YR TIPS ETF	46429B747	3,328	31,505	SH		SOLE		0	0	31,504
ISHARES TR	MSCI INTL SML CP	46434V266	2,106	57,823	SH		SOLE		0	0	57,823
ISHARES TR	IBONDS DEC2023	46435G318	2,636	101,398	SH		SOLE		0	0	101,397
ISHARES TR	CORE INTL AGGR	46435G672	202	3,672	SH		SOLE		0	0	3,672
ISHARES TR	IBONDS DEC2022	46435G755	2,538	96,935	SH		SOLE		0	0	96,934
ISHARES TR	IBONDS DEC2021	46435G789	1,229	48,028	SH		SOLE		0	0	48,027
ISHARES TR	IBONDS DEC 26	46435U259	1,051	39,095	SH		SOLE		0	0	39,095
ISHARES TR	IBONDS DEC 25	46435U432	1,186	42,433	SH		SOLE		0	0	42,433
ISHARES TR	ESG AWR US AGRGT	46435U549	634	11,507	SH		SOLE		0	0	11,506
ISHARES TR	IBONDS DEC	46435U697	1,943	72,141	SH		SOLE		0	0	72,141
LATTICE STRATEGIES TR	HARTFORD MLT ETF	518416102	212	7,059	SH		SOLE		0	0	7,059
MICROSOFT CORP	COM	594918104	879	3,117	SH		SOLE		0	0	3,116
NOVO-NORDISK A S	ADR	670100205	246	2,563	SH		SOLE		0	0	2,563
PFIZER INC	COM	717081103	313	7,274	SH		SOLE		0	0	7,274
PROCTER AND GAMBLE CO	COM	742718109	204	1,457	SH		SOLE		0	0	1,457
SPDR S&P 500 ETF TR	TR UNIT	78462F103	461	1,073	SH		SOLE		0	0	1,073
SPDR GOLD TR	GOLD SHS	78463V107	486	2,960	SH		SOLE		0	0	2,960
SPDR INDEX SHS FDS	MSCI EMRG MKTS	78463X426	502	7,416	SH		SOLE		0	0	7,416
SPDR INDEX SHS FDS	PORTFOLIO DEVLPD	78463X889	26,100	720,797	SH		SOLE		0	0	720,796
SPDR SER TR	PORTFOLIO AGRGTE	78464A649	44,175	1,479,915	SH		SOLE		0	0	1,479,914
SPDR SER TR	S&P DIVID ETF	78464A763	586	4,988	SH		SOLE		0	0	4,988
SPDR SER TR	PORTFOLI S&P1500	78464A805	38,920	734,487	SH		SOLE		0	0	734,486
SPDR SER TR	PORTFOLIO S&P400	78464A847	304	6,589	SH		SOLE		0	0	6,589
SPDR SER TR	PORTFOLIO S&P500	78464A854	1,699	33,661	SH		SOLE		0	0	33,661
SSGA ACTIVE ETF TR	SPDR TR TACTIC	78467V848	587	12,142	SH		SOLE		0	0	12,142
SPDR SER TR	PORTFOLIO SH TSR	78468R101	1,570	51,252	SH		SOLE		0	0	51,252
SPDR SER TR	NUVEEN BRC MUNIC	78468R721	455	8,832	SH		SOLE		0	0	8,832
SPDR SER TR	NUVEEN BLMBRG SR	78468R739	263	5,326	SH		SOLE		0	0	5,325
SPDR SER TR	MSCI USA STRTGIC	78468R812	6,947	58,235	SH		SOLE		0	0	58,235
SPDR SER TR	PORTFOLIO S&P600	78468R853	501	11,768	SH		SOLE		0	0	11,768
SSGA ACTIVE TR	SPDR DBLELN EMRG	78470P309	638	12,682	SH		SOLE		0	0	12,682
SCHWAB STRATEGIC TR	US LRG CAP ETF	808524201	15,915	152,988	SH		SOLE		0	0	152,987
SCHWAB STRATEGIC TR	US LCAP GR ETF	808524300	211	1,426	SH		SOLE		0	0	1,426
SCHWAB STRATEGIC TR	US MID-CAP ETF	808524508	4,568	59,593	SH		SOLE		0	0	59,593
SCHWAB STRATEGIC TR	US SML CAP ETF	808524607	371	3,708	SH		SOLE		0	0	3,708
SCHWAB STRATEGIC TR	INTL EQTY ETF	808524805	361	9,326	SH		SOLE		0	0	9,325
SCHWAB STRATEGIC TR	US AGGREGATE B	808524839	8,430	155,368	SH		SOLE		0	0	155,367
SCHWAB STRATEGIC TR	SHT TM US TRES	808524862	1,382	26,996	SH		SOLE		0	0	26,996
SELECT SECTOR SPDR TR	TECHNOLOGY	81369Y803	426	2,850	SH		SOLE		0	0	2,850
SPERO THERAPEUTICS INC	COM	84833T103	372	20,200	SH		SOLE		0	0	20,200
SPROTT PHYSICAL GOLD TR	UNIT	85207H104	10,090	731,170	SH		SOLE		0	0	731,170
SPROTT PHYSICAL SILVER TR	TR UNIT	85207K107	168	21,842	SH		SOLE		0	0	21,842
VANECK ETF TRUST	MRNGSTR WDE MOAT	92189F643	5,896	80,490	SH		SOLE		0	0	80,490
VANGUARD SPECIALIZED FUNDS	DIV APP ETF	921908844	2,050	13,347	SH		SOLE		0	0	13,347
VANGUARD WHITEHALL FDS	HIGH DIV YLD	921946406	650	6,287	SH		SOLE		0	0	6,286
VANGUARD MALVERN FDS	STRM INFPROIDX	922020805	1,487	28,278	SH		SOLE		0	0	28,278
VANGUARD INTL EQUITY INDEX F	GLB EX US ETF	922042676	487	8,646	SH		SOLE		0	0	8,646
VANGUARD WORLD FDS	FINANCIALS ETF	92204A405	844	9,109	SH		SOLE		0	0	9,109
VANGUARD WORLD FDS	MATERIALS ETF	92204A801	1,130	6,526	SH		SOLE		0	0	6,526
VANGUARD INDEX FDS	MCAP GR IDXVIP	922908538	264	1,117	SH		SOLE		0	0	1,117
VANGUARD INDEX FDS	REAL ESTATE ETF	922908553	1,695	16,656	SH		SOLE		0	0	16,656
VANGUARD INDEX FDS	SML CP GRW ETF	922908595	1,575	5,622	SH		SOLE		0	0	5,622
VANGUARD INDEX FDS	MID CAP ETF	922908629	3,037	12,826	SH		SOLE		0	0	12,825
VANGUARD INDEX FDS	LARGE CAP ETF	922908637	200	997	SH		SOLE		0	0	997
VANGUARD INDEX FDS	GROWTH ETF	922908736	4,894	16,867	SH		SOLE		0	0	16,866
VANGUARD INDEX FDS	TOTAL STK MKT	922908769	2,838	12,778	SH		SOLE		0	0	12,778
VERIZON COMMUNICATIONS INC	COM	92343V104	620	11,488	SH		SOLE		0	0	11,487
WALMART INC	COM	931142103	790	5,671	SH		SOLE		0	0	5,670
WISDOMTREE TR	INTL EQUITY FD	97717W703	349	6,609	SH		SOLE		0	0	6,609
WISDOMTREE TR	GLB US QTLY DIV	97717W844	2,879	71,149	SH		SOLE		0	0	71,149
WISDOMTREE TR	US QTLY DIV GRT	97717X669	1,823	30,981	SH		SOLE		0	0	30,980