S&CO INC

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1082461
Institutional-grade research for retail investors

13F Reported Value

$1.6M

Holdings

218

Latest Filing

2026-03-31

Filing Quarter

Q1 2026

Portfolio Overview

S&CO INC disclosed 218 positions worth $1.6M in its Form 13F-HR for Q1 2026, led by $XOM (EXXON MOBIL CORP) at 5.5% of the equity portfolio, followed by $BRK.B and $MSFT. During the quarter the fund opened 4 new positions and exited 4 and a full exit from $CP. The portfolio is most concentrated in Technology (23.4% of disclosed assets). All figures are sourced directly from S&CO INC’s Form 13F-HR filing with the SEC under CIK 1082461.

Sector Allocation

TechnologyHealthcareFinancialsMaterialsEnergyIndustrials

AUM History

Top Equity Holdings by Value

Quarterly Activity — Q1 2026

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Top Holdings

AI Quality Scored

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32-signal composite ranking on each of S&CO INC's 218 positions.

Showing top 10 of 218 holdings.

Sector Allocation

Technology

$376,890

Healthcare

$238,488

Financials

$216,560

Materials

$178,776

Energy

$126,794

Industrials

$123,314

Other

$101,833

Consumer Staples

$82,149

Full Holdings — S&CO INC (Q1 2026)

All 218 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.

#TickerCompanyValueWeightQoQQuality
1XOM$XOMEXXON MOBIL CORP$89,2415.5%-0%61.8
2BRK.B$BRK.BBERKSHIRE HATHAWAY INC$78,6244.9%-0%64.5
3MSFT$MSFTMICROSOFT CORP$70,4054.4%+10%83.7
4CAT$CATCATERPILLAR INC$70,0144.3%-6%67.8
5CHD$CHDCHURCH & DWIGHT CO INC /DE/$60,6793.8%+1%65.3
6ECL$ECLECOLAB INC.$60,1363.7%-0%64.3
7AAPL$AAPLApple Inc.$58,9693.7%-0%76.1
8MRK$MRKMerck & Co., Inc.$51,1863.2%-0%70.9
9AMZN$AMZNAMAZON COM INC$41,0612.5%+3%74.6
10ADP$ADPAUTOMATIC DATA PROCESSING INC$41,0372.5%-0%77.9
11JNJ$JNJJOHNSON & JOHNSON$38,4012.4%-1%72.8
12CCJ$CCJCAMECO CORP$35,5772.2%-8%
13GLD$GLDSPDR GOLD TRUST$34,6662.1%+0%
14GOOGL$GOOGLAlphabet Inc.$33,8812.1%-0%80.2
15APD$APDAir Products & Chemicals, Inc.$27,4301.7%+0%41.2
16GOOG$GOOGAlphabet Inc.$27,3431.7%-0%80.2
17MOS$MOSMOSAIC CO$24,5731.5%-1%54.3
18PROSUS NV -SPON ADR$22,4341.4%-1%
19AR$ARANTERO RESOURCES Corp$20,6931.3%+2%80.1
20TMO$TMOTHERMO FISHER SCIENTIFIC INC.$20,5591.3%-0%63.7
21ABT$ABTABBOTT LABORATORIES$20,5051.3%-12%67
22PYPL$PYPLPayPal Holdings, Inc.$20,1391.3%+29%70.5
23LLY$LLYELI LILLY & Co$19,7921.2%+6%89.3
24RPRX$RPRXRoyalty Pharma plc$17,1911.1%+0%
25UNP$UNPUNION PACIFIC CORP$16,8261.0%+0%74
26LLYVA$LLYVALiberty Live Holdings, Inc.$16,6171.0%+0%
27FUL$FULFULLER H B CO$16,1091.0%-1%57.2
28PANW$PANWPalo Alto Networks Inc$13,9350.9%+4%66.5
29SIRI$SIRISIRIUS XM HOLDINGS INC.$13,4190.8%-17%37.7
30LIN$LINLINDE PLC$12,9150.8%+0%
31NVDA$NVDANVIDIA CORP$12,5840.8%-10%90.2
32SPDR S&P BIOTECH ETF$12,0420.8%-8%
33PEP$PEPPEPSICO INC$11,9540.7%-6%62.7
34UNH$UNHUNITEDHEALTH GROUP INC$11,9250.7%+8%66.8
35V$VVISA INC.$11,3500.7%+19%83.5
36EVERPURE, INC. CLASS A$11,2420.7%+0%
37MA$MAMastercard Inc$10,7330.7%+31%81.7
38GEV$GEVGE Vernova Inc.$10,6850.7%-6%70.1
39BSX$BSXBOSTON SCIENTIFIC CORP$10,6540.7%-1%79.9
40GE$GEGENERAL ELECTRIC CO$10,6330.7%-0%74.8
41FWONA$FWONALiberty Media Corp$10,4170.7%-0%51
42ASTRAZENECA PLC$9,8320.6%NEW
43MDT$MDTMedtronic plc$9,3690.6%+0%
44AFL$AFLAFLAC INC$9,1680.6%+0%60.3
45ALKS$ALKSAlkermes plc.$8,6540.5%+21%
46GFL$GFLGFL Environmental Inc.$8,4760.5%+16%
47ROL$ROLROLLINS INC$8,3520.5%+0%73.2
48CSCO$CSCOCISCO SYSTEMS, INC.$8,3440.5%-1%72.3
49ADI$ADIANALOG DEVICES INC$7,8860.5%+0%76.2
50ABNB$ABNBAirbnb, Inc.$7,8740.5%+0%70.1
51VANGUARD FTSE EMERGING MARKET$7,1150.4%+13%
52JPM$JPMJPMORGAN CHASE & CO$7,0400.4%+0%35.6
53APO$APOApollo Global Management, Inc.$7,0060.4%+0%55.7
54ROCHE HOLDING LTD SPONSORED AD$6,8800.4%+163%
55HD$HDHOME DEPOT, INC.$6,8690.4%+0%69.2
56EW$EWEdwards Lifesciences Corp$6,5260.4%+0%67.6
57FANG$FANGDiamondback Energy, Inc.$6,3680.4%+3%81.4
58INTU$INTUINTUIT INC.$6,2860.4%+110%82
59CVX$CVXCHEVRON CORP$6,2110.4%-2%54.7
60CB$CBChubb Ltd$6,1650.4%+0%
61LBRDA$LBRDALiberty Broadband Corp$6,0880.4%+0%59.4
62RTX$RTXRTX Corp$6,0600.4%-1%70
63OKTA$OKTAOkta, Inc.$5,7280.4%+19%67.3
64MS$MSMORGAN STANLEY$5,6450.3%-2%
65LILA$LILALiberty Latin America Ltd.$5,2990.3%-19%
66FWONA$FWONALiberty Media Corp$5,1990.3%-1%51
67EL$ELESTEE LAUDER COMPANIES INC$5,0780.3%+2%52.5
68LBTYA$LBTYALiberty Global Ltd.$5,0490.3%+0%
69SYK$SYKSTRYKER CORP$5,0290.3%+0%69.8
70GLIBA$GLIBALiberty Capital Corp/NV$4,9880.3%+196%30.3
71TECH$TECHBIO-TECHNE Corp$4,7390.3%+0%59.6
72WEC$WECWEC ENERGY GROUP, INC.$4,7080.3%-7%67
73TEL$TELTE Connectivity plc$4,6810.3%-0%
74VANGUARD DIVIDEND APPRECIATION$4,6520.3%-0%
75LLYVA$LLYVALiberty Live Holdings, Inc.$4,5250.3%+4%
76MMM$MMM3M CO$4,5100.3%+0%60.7
77BAC$BACBANK OF AMERICA CORP /DE/$4,5080.3%+0%68.4
78C$CCITIGROUP INC$4,4950.3%+0%54.8
79IBKR$IBKRInteractive Brokers Group, Inc.$4,2300.3%+0%75.5
80IBM$IBMINTERNATIONAL BUSINESS MACHINES CORP$4,0690.3%+0%66.7
81VANECK GOLD MINERS ETF$3,9080.2%+0%
82MIDD$MIDDMIDDLEBY Corp$3,8580.2%-30%44.9
83ISHARES S&P 500/BARRA GROWTH I$3,8110.2%+0%
84EXPE$EXPEExpedia Group, Inc.$3,7600.2%-0%65.7
85DBRG$DBRGDigitalBridge Group, Inc.$3,6320.2%-3%52.9
86TJX$TJXTJX COMPANIES INC /DE/$3,5300.2%-1%70.7
87WAT$WATWATERS CORP /DE/$3,3990.2%+4%69.9
88WDAY$WDAYWorkday, Inc.$3,3920.2%+0%74.2
89LBRDA$LBRDALiberty Broadband Corp$3,3560.2%-1%59.4
90RVMD$RVMDRevolution Medicines, Inc.$3,3230.2%+0%
91VANGUARD MSCI EUROPEAN INDEX E$3,2970.2%+0%
92META$METAMeta Platforms, Inc.$3,2750.2%+0%80.9
93ETN$ETNEaton Corp plc$3,2100.2%+0%
94WISDOMTREE JAPAN HEDGED EQUITY$3,1710.2%+0%
95PG$PGPROCTER & GAMBLE Co$2,9490.2%-6%72.9
96FSLR$FSLRFIRST SOLAR, INC.$2,8790.2%+1%73.8
97WFC$WFCWELLS FARGO & COMPANY/MN$2,8380.2%+0%
98LBTYA$LBTYALiberty Global Ltd.$2,6710.2%-1%
99NEE$NEENEXTERA ENERGY INC$2,6670.2%+0%71.7
100ELAN$ELANElanco Animal Health Inc$2,6630.2%+0%52.2
101RBRK$RBRKRubrik, Inc.$2,6250.2%+0%49.5
102MCD$MCDMCDONALDS CORP$2,6240.2%+0%73.9
103COST$COSTCOSTCO WHOLESALE CORP /NEW$2,5650.2%+0%67
104DHR$DHRDANAHER CORP /DE/$2,5000.2%+0%63.9
105ALNY$ALNYALNYLAM PHARMACEUTICALS, INC.$2,4480.1%-10%60.9
106RRC$RRCRANGE RESOURCES CORP$2,4170.1%+1%82.8
107CEG$CEGConstellation Energy Corp$2,4070.1%+1%62.5
108IAC INC$2,3780.1%-14%
109ISRG$ISRGINTUITIVE SURGICAL INC$2,3600.1%+0%81.4
110VANGUARD FTSE ALL-WORLD EX-US$2,3470.1%+0%
111TSLA$TSLATesla, Inc.$2,2710.1%+19%50.1
112FERG$FERGFerguson Enterprises Inc. /DE/$2,2490.1%+0%58.9
113ILMN$ILMNILLUMINA, INC.$2,2180.1%+0%62.5
114A$AAGILENT TECHNOLOGIES, INC.$2,0140.1%+0%64.6
115AXP$AXPAMERICAN EXPRESS CO$1,9310.1%+0%73.2
116VRTX$VRTXVERTEX PHARMACEUTICALS INC / MA$1,8320.1%+0%76.6
117PEN$PENPenumbra Inc$1,8060.1%+0%69.7
118CTSH$CTSHCOGNIZANT TECHNOLOGY SOLUTIONS CORP$1,7750.1%-26%67.3
119LECO$LECOLINCOLN ELECTRIC HOLDINGS INC$1,7430.1%+0%67.5
120TVTX$TVTXTravere Therapeutics, Inc.$1,6630.1%+0%39.2
121CW$CWCURTISS WRIGHT CORP$1,6150.1%+0%70.7
122EOG$EOGEOG RESOURCES INC$1,5660.1%+29%71.1
123LOW$LOWLOWES COMPANIES INC$1,5360.1%+2%63.5
124IAU$IAUISHARES GOLD TRUST$1,5140.1%+0%
125ISHARES MSCI JAPAN SMALL CAP E$1,4560.1%+0%
126PFE$PFEPFIZER INC$1,4100.1%-6%69
127INSM$INSMINSMED Inc$1,3570.1%+0%29.4
128PODD$PODDINSULET CORP$1,3390.1%+0%70.4
129HON$HONHONEYWELL INTERNATIONAL INC$1,2750.1%+0%65.7
130HUM$HUMHUMANA INC$1,2740.1%-9%82
131ABBV$ABBVAbbVie Inc.$1,2730.1%-4%59.3
132KMB$KMBKIMBERLY CLARK CORP$1,1490.1%+0%61.7
133SONY$SONYSony Group Corp$1,1380.1%+0%
134HCA$HCAHCA Healthcare, Inc.$1,0870.1%+0%70.5
135AGCO$AGCOAGCO CORP /DE$1,0800.1%+0%50.7
136ISHARES RUSSELL 1000 VALUE IND$1,0790.1%+0%
137MRVL$MRVLMarvell Technology, Inc.$1,0470.1%+0%77.3
138ETR$ETRENTERGY CORP /DE/$1,0070.1%+0%65.1
139RBLX$RBLXRoblox Corp$9580.1%+0%53.7
140ADBE$ADBEADOBE INC.$9440.1%+0%80.4
141WMT$WMTWalmart Inc.$9330.1%+0%63.2
142VANGUARD TOTAL STOCK MKT ETF$9240.1%+0%
143NBIX$NBIXNEUROCRINE BIOSCIENCES INC$9220.1%+0%75.4
144ISHARES S&P 500 VALUE INDEX ET$9180.1%+0%
145PRVA$PRVAPrivia Health Group, Inc.$8630.1%+0%49.4
146UTHR$UTHRUNITED THERAPEUTICS Corp$8480.1%+0%80.1
147ALC$ALCALCON INC$8430.1%+0%
148T$TAT&T INC.$8410.1%+0%71.9
149BATRA$BATRAAtlanta Braves Holdings, Inc.$8350.1%-2%30.8
150ISHARES RUSSELL MIDCAP INDEX E$8110.1%+0%
151MNDY$MNDYmonday.com Ltd.$8020.1%+69%
152TT$TTTrane Technologies plc$7830.1%+0%
153KO$KOCOCA COLA CO$7780.1%+0%74
154CET$CETCENTRAL SECURITIES CORP$7680.1%-0%
155MTD$MTDMETTLER TOLEDO INTERNATIONAL INC/$7560.1%+0%68.8
156SXI$SXISTANDEX INTERNATIONAL CORP/DE/$6840.0%+0%68.2
157ISHARES RUSSELL 1000 GROWTH IN$6570.0%-1%
158KMPB$KMPBKEMPER Corp$6070.0%+0%50.4
159LILA$LILALiberty Latin America Ltd.$6070.0%-76%
160VESTAS WIND SYSTEM A/S UnSPONS$5950.0%+0%
161PNC$PNCPNC FINANCIAL SERVICES GROUP, INC.$5820.0%+0%70.9
162BEN$BENFRANKLIN RESOURCES INC$5490.0%-50%59.9
163BE$BEBloom Energy Corp$5410.0%-20%54.4
164RARE$RAREUltragenyx Pharmaceutical Inc.$5290.0%+0%31
165CRM$CRMSalesforce, Inc.$5290.0%+0%75.2
166ZTS$ZTSZoetis Inc.$5210.0%-9%72.6
167INTC$INTCINTEL CORP$5170.0%+0%41.5
168IQV$IQVIQVIA HOLDINGS INC.$5110.0%+0%59.7
169GIS$GISGENERAL MILLS INC$5070.0%-13%64.1
170DE$DEDEERE & CO$4840.0%+0%57.4
171BAH$BAHBooz Allen Hamilton Holding Corp$4570.0%+0%65.5
172ISHARES RUSSELL 2000 GROWTH IN$4170.0%+0%
173VANGUARD FTSE DEVELOPED ETF$3940.0%+0%
174TXN$TXNTEXAS INSTRUMENTS INC$3880.0%-3%70.4
175AVGO$AVGOBroadcom Inc.$3850.0%+0%86.4
176GLIBA$GLIBALiberty Capital Corp/NV$3770.0%+0%30.3
177ZWS$ZWSZurn Elkay Water Solutions Corp$3580.0%+0%67.4
178EBC$EBCEastern Bankshares, Inc.$3580.0%+0%62.3
179BA$BABOEING CO$3560.0%+0%51.8
180GLW$GLWCORNING INC /NY$3460.0%+0%72.7
181MRSH$MRSHMARSH & MCLENNAN COMPANIES, INC.$3460.0%+0%71.5
182CLH$CLHCLEAN HARBORS INC$3440.0%+0%56.3
183GEHC$GEHCGE HealthCare Technologies Inc.$3430.0%-8%58.2
184RSG$RSGREPUBLIC SERVICES, INC.$3390.0%-11%72
185NOC$NOCNORTHROP GRUMMAN CORP /DE/$3350.0%+0%60.5
186BEPC$BEPCBrookfield Renewable Corp$3260.0%+0%
187GNRC$GNRCGENERAC HOLDINGS INC.$3120.0%+7%58.2
188RRX$RRXREGAL REXNORD CORP$2990.0%+0%53.8
189RIG$RIGTransocean Ltd.$2980.0%NEW
190EMR$EMREMERSON ELECTRIC CO$2980.0%+0%65.9
191ITRI$ITRIITRON, INC.$2950.0%+0%64.4
192ORCL$ORCLORACLE CORP$2940.0%+19%67.2
193AMGN$AMGNAMGEN INC$2930.0%+0%79.5
194MP$MPMP Materials Corp. / DE$2890.0%+0%23.5
195AYI$AYIACUITY INC. (DE)$2800.0%+0%68.9
196IDXX$IDXXIDEXX LABORATORIES INC /DE$2800.0%+0%73.6
197CTAS$CTASCINTAS CORP$2700.0%+0%76.3
198APP$APPAppLovin Corp$2680.0%+0%86.8
199NOVONESIS(NOVOZYMES A/S) ADR C$2650.0%+0%
200CAE$CAECAE INC$2600.0%+0%
201VANGUARD S&P 500 ETF$2520.0%+0%
202WM$WMWASTE MANAGEMENT INC$2520.0%+0%70.7
203SEE$SEESEALED AIR CORP/DE$2520.0%+0%
204CHTR$CHTRCHARTER COMMUNICATIONS, INC. /MO/$2430.0%-73%57.7
205AES$AESAES CORP$2390.0%+0%50.9
206PFG$PFGPRINCIPAL FINANCIAL GROUP INC$2250.0%+0%50.6
207ORA$ORAORMAT TECHNOLOGIES, INC.$2230.0%+0%53.5
208CSX$CSXCSX CORP$2210.0%NEW66.4
209CI$CICigna Group$2190.0%+0%66.8
210VLTO$VLTOVeralto Corp$2150.0%+9%74.4
211CFG$CFGCITIZENS FINANCIAL GROUP INC/RI$2090.0%+0%68.8
212APTV$APTVAptiv PLC$2080.0%+0%
213CL$CLCOLGATE PALMOLIVE CO$2040.0%NEW72.4
214DASH$DASHDoorDash, Inc.$2010.0%+0%70.6
215LANDIS GYR GROUP AG UnSponsore$1880.0%+0%
216ENVX$ENVXEnovix Corp$1810.0%+0%25.2
217CLNE$CLNEClean Energy Fuels Corp.$1480.0%+0%32.1
218ERII$ERIIEnergy Recovery, Inc.$1300.0%+8%33.6

New Positions (4)

ASTRAZENECA PLC$9,832
RIG$RIG Transocean Ltd.$298
CSX$CSX CSX CORP$221
CL$CL COLGATE PALMOLIVE CO$204

Exited Positions (4)

CP$CP CANADIAN PACIFIC KANSAS CITY LTD/CN
FICO$FICO FAIR ISAAC CORP
LKQ$LKQ LKQ CORP
XYL$XYL Xylem Inc.

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