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Super Investors FOSTER DYKEMA CABOT & CO INC/MA
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FOSTER DYKEMA CABOT & CO INC/MA

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$827M
Positions
335
Quarter ended
September 30, 2023
Filed
November 14, 2023

Reported portfolio value by quarter (42 quarters reported)

$887M $796K
Q2 13 Q3 15 Q4 17 Q1 20 Q2 22 Q3 23

$337M in Q2 2013 → $827M now. Hover for any quarter.

Holdings

As reported for the quarter ended September 30, 2023. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
SS SPDR S&P 500 ETF Trust 22.0% Added 0.2% 426,018 $182M
JM Jp Morgan Usd Ultrashort Income ETF 10.7% Added 2.8% 1,757,225 $88.2M
IU Ishares Ultra Short-term Bond ETF 4.2% Added 0.9% 690,100 $34.8M
Amazon.com, Inc. 4.0% Trimmed 1.4% 259,949 $33M
Microsoft Corporation 3.8% Trimmed 0.1% 98,782 $31.2M
Eli Lilly And Company 3.5% Trimmed 0.2% 53,922 $29M
Costco Wholesale Corporation 3.2% Trimmed 0.5% 46,424 $26.2M
AC Amphenol Corporation Class A 3.0% Trimmed 0.3% 290,996 $24.4M
QS Quanta Services Com 2.8% Trimmed 0.3% 122,963 $23M
Thermo Fisher Scientific Inc. 2.6% Trimmed 0.0% 42,640 $21.6M
Jpmorgan Chase & Co. 2.6% Added 0.2% 147,344 $21.4M
BH Berkshire Hathaway Inc. Class B 2.6% Trimmed 0.9% 60,605 $21.2M
Vertex Pharmaceuticals Incorporated 2.5% Added 0.1% 59,357 $20.6M
IS Industrial Select Sector SPDR Fund 2.5% Added 0.1% 202,080 $20.5M
AP Accenture PLC Class A 2.5% Trimmed 0.2% 66,091 $20.3M
American Express Company 2.4% Trimmed 0.1% 131,566 $19.6M
Prologis Incorporated 2.2% Added 0.3% 160,640 $18M
HS Healthcare Select Sector SPDR ETF 2.1% Added 0.5% 136,034 $17.5M
Waste Management, Inc. 2.1% Added 0.4% 111,521 $17M
Lowe's Companies, Inc. 1.9% Trimmed 0.1% 74,980 $15.6M
Northrop Grumman Corp. 1.8% Added 0.0% 33,407 $14.7M
Apple Inc. 1.8% Trimmed 1.3% 84,619 $14.5M
FS Financial Select Sector SPDR Fund 1.7% Added 0.3% 419,217 $13.9M
IC Ishares Core Msci Eafe ETF 1.6% Trimmed 2.5% 209,000 $13.4M
VT Vanguard Total Stock Market ETF 1.5% Trimmed 2.1% 60,235 $12.8M
AC Alphabet Inc. Class C 0.6% Unchanged 36,930 $4.87M
Procter & Gamble Company 0.6% Trimmed 0.8% 32,844 $4.79M
TS Technology Select Sector SPDR Fund 0.6% Trimmed 0.3% 27,957 $4.58M
SS SPDR S&P 500 Fossil Fuel Res Free ETF 0.5% Unchanged 111,153 $3.86M
IR Ishares Russell 1000 Growth ETF 0.4% Trimmed 1.7% 13,067 $3.48M
AC Alphabet Inc. Class A 0.4% Unchanged 25,614 $3.35M
BH Berkshire Hathaway Inc. Class A 0.3% Unchanged 5 $2.66M
VS Vanguard S&P 500 ETF 0.3% Trimmed 14% 6,056 $2.38M
IR Ishares Russell 1000 Value ETF 0.2% Unchanged 13,348 $2.03M
Pepsico, Inc. 0.2% Added 5.6% 11,104 $1.88M
IC Ishares Core S&P 500 ETF 0.2% Added 47% 3,967 $1.7M
IM Ishares Msci Global Sus Dev Goals ETF 0.2% Unchanged 21,299 $1.59M
IS Invesco S&P 500 Equal Weight ETF 0.2% Added 64% 9,845 $1.4M
IC Ishares Core S&P Small Cap ETF 0.1% Unchanged 9,727 $918K
Merck & Co Inc 0.1% Added 9.3% 8,836 $910K
Mcdonald's Corporation 0.1% Unchanged 3,392 $894K
Coca-cola Company 0.1% Unchanged 15,764 $882K
Sprott Physical Gold Trust 0.1% Unchanged 60,329 $864K
EB Enterprise Bancorp, Inc. 0.1% Unchanged 31,306 $857K
Exxon Mobil Corporation 0.1% Added 19% 7,209 $848K
IR Ishares Russell Midcap ETF 0.1% Unchanged 10,915 $756K
Johnson & Johnson 0.1% Added 19% 4,652 $725K
Cisco Systems, Inc. 0.1% Unchanged 12,685 $682K
IS Ishares S&P 500 Growth ETF 0.1% Unchanged 9,953 $681K
Walt Disney Company 0.1% Added 2.5% 7,895 $640K
Walmart Inc. 0.1% Unchanged 3,950 $632K
S&P Global, Inc. 0.1% Unchanged 1,698 $620K
Lockheed Martin Corporation 0.1% Unchanged 1,466 $600K
Colgate-palmolive Company 0.1% Unchanged 7,852 $558K
Union Pacific Corporation 0.1% Trimmed 3.1% 2,574 $524K
Abbvie, Inc. 0.1% Added 2.6% 3,332 $497K
Morgan Stanley 0.0% Trimmed 50% 4,968 $406K
Tesla Inc 0.0% Unchanged 1,577 $395K
KG Kraneshares Global Carbon Strategy ETF 0.0% Unchanged 10,695 $386K
Automatic Data Processing, Inc. 0.0% Unchanged 1,523 $366K

Showing top 60 of 335 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q3 2023

quarter ended September 30, 2023 · filed November 14, 2023

Company Action Shares changed Value of change % of portfolio
JM Jp Morgan Usd Ultrashort Income ETF Added +47,768 +$2.4M 10.7%
IS Invesco S&P 500 Equal Weight ETF Added +3,850 +$546K 0.2%
IC Ishares Core S&P 500 ETF Added +1,270 +$546K 0.2%
Amazon.com, Inc. Trimmed −3,646 −$463K 4.0%
NM Nuveen Massachusetts Quality Municipal Income Fund (nmt) Trimmed −47,960 −$455K —
Morgan Stanley Trimmed −4,971 −$406K —
VS Vanguard S&P 500 ETF Trimmed −949 −$373K 0.3%
NC Nike, Inc. Class B Added +3,632 +$347K —
M&T Bank Corporation Trimmed −2,734 −$346K —
IC Ishares Core Msci Eafe ETF Trimmed −5,359 −$345K 1.6%

Showing the 10 largest of 170 changes.

Q2 2023

quarter ended June 30, 2023 · filed August 14, 2023

Company Action Shares changed Value of change % of portfolio
JM Jp Morgan Usd Ultrashort Income ETF Added +113,220 +$5.68M 10.1%
IU Ishares Ultra Short-term Bond ETF Added +38,923 +$1.96M 4.0%
Morgan Stanley New +9,939 +$849K 0.1%
NM Nuveen Massachusetts Quality Municipal Income Fund (nmt) New +70,507 +$736K 0.1%
BH Berkshire Hathaway Inc. Class B Trimmed −2,094 −$714K 2.5%
IC Ishares Core Msci Eafe ETF Trimmed −8,141 −$550K 1.7%
VT Vanguard Total World Stock ETF New +5,455 +$529K 0.1%
Amazon.com, Inc. Trimmed −4,022 −$524K 4.0%
VS Vanguard S&P 500 ETF Added +949 +$387K 0.3%
VF Vanguard Ftse Developed Markets ETF Added +8,061 +$372K 0.1%

Showing the 10 largest of 228 changes.

Q1 2023

quarter ended March 31, 2023 · filed May 12, 2023

Company Action Shares changed Value of change % of portfolio
SS SPDR S&P 500 ETF Trust Added +14,893 +$6.1M 22.4%
SS SPDR S&P 500 Fossil Fuel Res Free ETF Added +73,439 +$2.44M 0.5%
Microsoft Corporation Added +5,811 +$1.68M 3.7%
BH Berkshire Hathaway Inc. Class B Trimmed −4,135 −$1.28M 2.5%
IC Ishares Core Msci Eafe ETF Trimmed −15,032 −$1M 1.9%
IS Invesco S&P 500 Equal Weight ETF New +5,995 +$867K 0.1%
Walt Disney Company New +7,562 +$757K 0.1%
Amazon.com, Inc. Added +5,843 +$604K 3.6%
Thermo Fisher Scientific Inc. Added +1,030 +$594K 3.1%
Cisco Systems, Inc. New +11,018 +$576K 0.1%

Showing the 10 largest of 216 changes.

Q4 2022

quarter ended December 31, 2022 · filed February 01, 2023

Company Action Shares changed Value of change % of portfolio
JM Jp Morgan Usd Ultrashort Income ETF Trimmed −2,360,647 −$118M 11.2%
IU Ishares Ultra Short-term Bond ETF Trimmed −555,957 −$27.8M 4.5%
Amazon.com, Inc. Added +93,520 +$7.86M 3.1%
Waste Management, Inc. Added +36,247 +$5.69M 2.4%
QS Quanta Services Com Added +34,887 +$4.97M 2.4%
HS Healthcare Select Sector SPDR ETF Added +31,041 +$4.22M 2.5%
Vertex Pharmaceuticals Incorporated Added +14,461 +$4.18M 2.4%
Northrop Grumman Corp. Added +7,082 +$3.86M 2.5%
BH Berkshire Hathaway Inc. Class B Trimmed −12,019 −$3.71M 2.9%
SS SPDR S&P 500 ETF Trust Added +9,340 +$3.57M 22.0%

Showing the 10 largest of 89 changes.

Q3 2022

quarter ended September 30, 2022 · filed February 03, 2023

Company Action Shares changed Value of change % of portfolio
Heliogen Inc Exited −750,000 −$1.58M —
Air Products And Chemicals, Inc. Exited −1,705 −$410K —
M& Mccormick & Co., Inc. Non-voting Exited −4,066 −$338K —
VT Vanguard Tax-managed (intl Fd Ftse Dev Mkt Etf) Exited −5,571 −$227K —
SS SPDR Series Trust (S&P 600 Smcp Val) Exited −2,920 −$211K —
VB Vanguard Bd Index Fd Inc Total Bnd Mrkt Exited −2,751 −$207K —
IB Ishares Broad Usd High Yield ETF Exited −5,821 −$202K —
Walt Disney Exited −1,288 −$122K —
Waters Corp Exited −340 −$113K —
IC Ishares Core Msci Eafe ETF Trimmed −556,616 −$29.3K 1.9%

Showing the 10 largest of 62 changes.

Q2 2022

quarter ended June 30, 2022 · filed July 15, 2022

Company Action Shares changed Value of change % of portfolio
JM Jp Morgan Usd Ultrashort Income ETF New +3,924,182 +$197M 24.2%
JH Jpmorgan Hedged Equity Select Exited −3,517,886 −$90.5M —
IU Ishares Ultra Short-term Bond ETF New +1,167,639 +$58.4M 7.2%
Accenture PLC Exited −58,651 −$19.8M —
Amazon.com Inc Added +159,016 +$16.9M 2.2%
AP Accenture PLC Ireland Shs Class A New +58,470 +$16.2M 2.0%
NC Nike, Inc. Class B Exited −119,411 −$16.1M —
IT Ishares Tr Usa Momentum Fct Trimmed −87,005 −$11.8M —
EL The Estee Lauder Cos Inc. Exited −28,438 −$7.74M —
Walt Disney Trimmed −70,834 −$6.71M —

Showing the 10 largest of 87 changes.

Q1 2022

quarter ended March 31, 2022 · filed May 10, 2022

Company Action Shares changed Value of change % of portfolio
Heliogen Inc New +750,000 +$3.95M 0.5%
IC Ishares Core Msci Eafe ETF Trimmed −17,232 −$1.2M 7.2%
M& Mccormick & Co., Inc. Non-voti Trimmed −11,934 −$1.19M —
NC Novus Capital Corp. Ii Class A Exited −101,010 −$1M —
SM SPDR Msci Eafe Fossil Fuel Res New +12,520 +$963K 0.1%
GS Guggenheim S&P 500 Equal Weigh New +5,995 +$945K 0.1%
NC Nike, Inc. Class B Trimmed −6,313 −$849K 1.9%
Colgate-palmolive Company Trimmed −6,178 −$468K —
Johnson & Johnson Trimmed −2,564 −$455K 0.2%
Amazon.com, Inc. Added +119 +$388K 3.5%

Showing the 10 largest of 54 changes.

Q4 2021

quarter ended December 31, 2021 · filed February 09, 2022

Company Action Shares changed Value of change % of portfolio
VC Visa Inc. Class A Trimmed −90,626 −$19.6M —
BD Becton Dickinson & Company Exited −51,846 −$12.7M —
Amazon.com, Inc. Added +2,599 +$8.67M 3.3%
American Express Company Added +46,305 +$7.58M 3.0%
Microsoft Corporation Added +19,380 +$6.52M 3.1%
SS SPDR S&P 500 ETF Trust Added +8,689 +$4.13M 21.5%
Walt Disney Company Trimmed −20,669 −$3.2M 1.3%
NC Nike, Inc. Class B Added +13,055 +$2.18M 2.4%
IC Ishares Core Msci Eafe ETF Added +23,114 +$1.73M 7.4%
JH Jpmorgan Hedged Equity Select Added +50,649 +$1.37M 10.7%

Showing the 10 largest of 49 changes.

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