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
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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
PFIZER INC COM 717081103 389 9,239 SH   SOLE   9,239 0 0
SPDR S&P 500 ETF TR TR UNIT 78462F103 512 1,961 SH   SOLE   1,961 0 0
VANGUARD INTL EQUITY INDEX F TT WRLD ST ETF 922042742 217 3,162 SH   SOLE   3,162 0 0
ISHARES TR MIN VOL USA ETF 46429B697 912 17,064 SH   SOLE   17,064 0 0
AMETEK INC NEW COM 031100100 440 6,256 SH   SOLE   6,256 0 0
AMAZON COM INC COM 023135106 72 43 SH   SOLE   43 0 0
APPLE INC COM 037833100 1,059 6,832 SH   SOLE   6,832 0 0
PROCTER AND GAMBLE CO COM 742718109 256 2,799 SH   SOLE   2,799 0 0
ISHARES TR EAFE SML CP ETF 464288273 9,561 175,655 SH   SOLE   175,655 0 0
BOEING CO COM 097023105 289 820 SH   SOLE   820 0 0
CAMBRIDGE BANCORP COM 132152109 241 3,204 SH   SOLE   3,204 0 0
ISHARES TR RUSEL 2500 ETF 46435G268 3,569 86,877 SH   SOLE   86,877 0 0
ISHARES TR RUS 2000 VAL ETF 464287630 1,439 12,412 SH   SOLE   12,412 0 0
ISHARES TR RUSSELL 3000 ETF 464287689 14,595 94,789 SH   SOLE   94,789 0 0
EXXON MOBIL CORP COM 30231G102 355 4,951 SH   SOLE   4,951 0 0
JPMORGAN CHASE & CO COM 46625H100 115 1,119 SH   SOLE   1,119 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 119 600 SH   SOLE   600 0 0
VANGUARD INDEX FDS MID CAP ETF 922908629 481 3,291 SH   SOLE   3,291 0 0
ISHARES TR RUS MDCP VAL ETF 464287473 283 3,498 SH   SOLE   3,498 0 0
ISHARES TR CORE S&P TTL STK 464287150 661 11,099 SH   SOLE   11,099 0 0
VANGUARD INDEX FDS TOTAL STK MKT 922908769 33,658 251,521 SH   SOLE   251,521 0 0
ISHARES TR CORE US AGGBD ET 464287226 304 2,854 SH   SOLE   2,854 0 0
SPDR SERIES TRUST S&P DIVID ETF 78464A763 1,305 14,108 SH   SOLE   14,108 0 0
INTERNATIONAL BUSINESS MACHS COM 459200101 209 1,720 SH   SOLE   1,720 0 0
ISHARES INC MIN VOL EMRG MKT 464286533 330 5,730 SH   SOLE   5,730 0 0
VANGUARD INDEX FDS MCAP VL IDXVIP 922908512 220 2,191 SH   SOLE   2,191 0 0
VANGUARD INTL EQUITY INDEX F FTSE PACIFIC ETF 922042866 1,624 25,502 SH   SOLE   25,502 0 0
MICROSOFT CORP COM 594918104 212 2,014 SH   SOLE   2,014 0 0
ISHARES TR RUS 1000 GRW ETF 464287614 11,648 84,991 SH   SOLE   84,991 0 0
ISHARES TR CORE MSCI EAFE 46432F842 390 6,804 SH   SOLE   6,804 0 0
ISHARES TR RUS 1000 ETF 464287622 516 3,556 SH   SOLE   3,556 0 0
MERCK & CO INC COM 58933Y105 235 3,148 SH   SOLE   3,148 0 0
ISHARES TR MIN VOL EAFE ETF 46429B689 37,896 552,823 SH   SOLE   552,823 0 0
MCDONALDS CORP COM 580135101 1,904 10,615 SH   SOLE   10,615 0 0
VANGUARD TAX MANAGED INTL FD FTSE DEV MKT ETF 921943858 14,235 366,689 SH   SOLE   366,689 0 0
ALPHABET INC CAP STK CL A 02079K305 145 133 SH   SOLE   133 0 0
HELIOS & MATHESON ANALYTICS COM PAR 42327L309 0 14,590 SH   SOLE   14,590 0 0
VANGUARD INTL EQUITY INDEX F FTSE EMR MKT ETF 922042858 252 6,287 SH   SOLE   6,287 0 0
ISHARES TR MSCI EAFE ETF 464287465 1,005 16,408 SH   SOLE   16,408 0 0
ISHARES TR CORE S&P500 ETF 464287200 506 1,925 SH   SOLE   1,925 0 0
VANGUARD INDEX FDS SM CP VAL ETF 922908611 3,150 25,677 SH   SOLE   25,677 0 0
AQUA AMERICA INC COM 03836W103 276 8,136 SH   SOLE   8,136 0 0
JOHNSON & JOHNSON COM 478160104 505 3,942 SH   SOLE   3,942 0 0