S&CO INC
Sector Allocation
- Technology22.1%$382.5M
- Healthcare17.1%$296.1M
- Financials12.8%$220.9M
- Materials10.3%$177.5M
- Industrials10.2%$176.3M
- Other6.6%$114.6M
- Energy6.0%$103.9M
- Consumer Staples5.0%$86.5M
- Communication Services4.4%$76.8M
- Consumer Discretionary4.2%$72.7M
AUM History
13fpro.ai/research/fund/s-and-co-inc-1082461
Conviction and streaks
Stable · top 10 = 38.4%From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.
Largest positions — Q2 2026
CAT
$100.2MBRK.B
$82.1MMSFT
$74.0MXOM.R34088
$71.9MAAPL
$63.9MCHD
$62.9MECL
$62.9MMRK
$54.7MAMZN
$46.9MADP
$45.2MGOOG
$41.7MJNJ
$39.9MGOOGL
$33.9MCCJ
$31.9MPANW
$31.3MGLD
$29.7MAPD
$27.7MLLY
$26.7MMOS
$22.1M- PROSUS$21.7M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/s-and-co-inc-1082461
S&CO INC 13F holdings — Q2 2026
$1.7B portfolio (+7.4% QoQ) · 222 holdings · Q2 2026 13F · top 10 are 38% of the stock portfolio
$100.2M
5.8% of stocks
-5%This quarter-19.2%Since filed10+ qtrsHeldAIQuality66.6#397Est. buyEstimated buy price is Pro: unlock with a free trialTrimmed 4 qtrs in a row$82.1M
4.7% of stocks
No changeThis quarter—Since filed10+ qtrsHeld$74.0M
4.3% of stocks
+4%This quarter+6.5%Since filed10+ qtrsHeld$71.9M
4.2% of stocks
No changeThis quarter—Since filed10+ qtrsHeld$63.9M
3.7% of stocks
-5%This quarter+10.1%Since filed10+ qtrsHeld$62.9M
3.6% of stocks
-0.1%This quarter+1.9%Since filed10+ qtrsHeld$62.9M
3.6% of stocks
-0.1%This quarter+1.9%Since filed10+ qtrsHeld$54.7M
3.2% of stocks
No changeThis quarter+9.5%Since filed10+ qtrsHeld$46.9M
2.7% of stocks
-0.1%This quarter-8.5%Since filed10+ qtrsHeld$45.2M
2.6% of stocks
No changeThis quarter+10.1%Since filed10+ qtrsHeld
All holdings — S&CO INC (Q2 2026)
222 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.
| # | Company | Held | Source | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | Alphabet Inc. | Technology | $41.7M | 2.4% | 118K | — | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 12 | JOHNSON & JOHNSON | Healthcare | $39.9M | 2.3% | 157K | — | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 13 | Alphabet Inc. | Technology | $33.9M | 2.0% | 95K | -0.2% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 14 | CAMECO CORP | Materials | $31.9M | 1.9% | 314K | -4% | 10+ qtrsTrimmed 4 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | Palo Alto Networks Inc | Technology | $31.3M | 1.8% | 92K | +6% | 10+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | SPDR GOLD TRUSTetf/fund | Financials | $29.7M | 1.7% | 81K | — | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 17 | Air Products & Chemicals, Inc. | Materials | $27.7M | 1.6% | 95K | +0.2% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | ELI LILLY & Co | Healthcare | $26.7M | 1.6% | 22K | +4% | 10+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 19 | MOSAIC CO | Materials | $22.1M | 1.3% | 1.04M | +8% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 20 | — | PROSUS NV -SPON ADR - COMadr | — | $21.7M | 1.3% | 2.50M | +0.1% | — | — | 13F |
| 21 | THERMO FISHER SCIENTIFIC INC. | Healthcare | $20.7M | 1.2% | 41K | -1% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | Royalty Pharma plc | Healthcare | $20.1M | 1.2% | 358K | -0.0% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | UNION PACIFIC CORP | Industrials | $18.9M | 1.1% | 69K | — | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | PayPal Holdings, Inc. | Financials | $18.8M | 1.1% | 436K | -2% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | Liberty Live Holdings, Inc. | Communication Services | $18.5M | 1.1% | 175K | -1% | 3 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | $UNH | UNITEDHEALTH GROUP INC | Healthcare | $18.3M | 1.1% | 44K | -0.2% | |||
| 27 | $AR | ANTERO RESOURCES Corp | Energy | $17.7M | 1.0% | 505K | +3% | |||
| 28 | $ABT | ABBOTT LABORATORIES | Healthcare | $16.9M | 1.0% | 187K | -7% | |||
| 29 | $SIRI | SIRIUS XM HOLDINGS INC. | Communication Services | $16.8M | 1.0% | 569K | -2% | |||
| 30 | — | EVERPURE, INC. CLASS A - COM | — | $15.0M | 0.9% | 190K | — | |||
| 31 | — | SPDR S&P BIOTECH ETF - COM | — | $14.9M | 0.9% | 94K | +0.0% | |||
| 32 | $NVDA | NVIDIA CORP | Technology | $14.4M | 0.8% | 72K | — | |||
| 33 | $V | VISA INC. | Financials | $14.4M | 0.8% | 42K | +12% | |||
| 34 | $FUL | FULLER H B CO | Materials | $14.1M | 0.8% | 242K | -7% | |||
| 35 | $GEV | GE Vernova Inc. | Industrials | $13.8M | 0.8% | 12K | -4% | |||
| 36 | $LIN | LINDE PLC | Materials | $13.6M | 0.8% | 26K | +0.3% | |||
| 37 | $GE | GENERAL ELECTRIC CO | Industrials | $13.3M | 0.8% | 36K | -5% | |||
| 38 | $ALKS | Alkermes plc. | Healthcare | $12.8M | 0.7% | 245K | — | |||
| 39 | $CSCO | CISCO SYSTEMS, INC. | Technology | $12.6M | 0.7% | 107K | -0.4% | |||
| 40 | — | ROCHE HOLDING LTD SPONSORED AD - COM | — | $11.9M | 0.7% | 230K | +64% | |||
| 41 | $FWONA | Liberty Media Corp | Communication Services | $11.7M | 0.7% | 123K | — | |||
| 42 | $MA | Mastercard Inc | Financials | $11.5M | 0.7% | 22K | +4% | |||
| 43 | $GFL | GFL Environmental Inc. | Utilities | $10.8M | 0.6% | 294K | +44% | |||
| 44 | $PEP | PEPSICO INC | Consumer Staples | $10.2M | 0.6% | 76K | -2% | |||
| 45 | $AFL | AFLAC INC | Financials | $9.8M | 0.6% | 84K | — | |||
| 46 | $ADI | ANALOG DEVICES INC | Technology | $9.4M | 0.6% | 24K | -4% | |||
| 47 | $ABNB | Airbnb, Inc. | Technology | $8.9M | 0.5% | 62K | — | |||
| 48 | $MDT | Medtronic plc | Healthcare | $8.5M | 0.5% | 108K | — | |||
| 49 | — | VANGUARD FTSE EMERGING MARKET - COM | — | $7.9M | 0.5% | 133K | +0.7% | |||
| 50 | $JPM | JPMORGAN CHASE & CO | Financials | $7.6M | 0.4% | 23K | -3% | |||
| 51 | $APO | Apollo Global Management, Inc. | Financials | $7.4M | 0.4% | 63K | — | |||
| 52 | $EW | Edwards Lifesciences Corp | Healthcare | $7.4M | 0.4% | 81K | — | |||
| 53 | $HD | HOME DEPOT, INC. | Consumer Discretionary | $7.4M | 0.4% | 21K | — | |||
| 54 | $BSX | BOSTON SCIENTIFIC CORP | Healthcare | $7.2M | 0.4% | 170K | — | |||
| 55 | $MS | MORGAN STANLEY | Financials | $7.1M | 0.4% | 34K | -0.9% | |||
| 56 | — | ASTRAZENECA PLC - COM | — | $7.1M | 0.4% | 38K | -25% | |||
| 57 | $ROL | ROLLINS INC | Industrials | $6.5M | 0.4% | 156K | — | |||
| 58 | $CB | Chubb Ltd | Financials | $6.4M | 0.4% | 19K | — | |||
| 59 | $RVMD | Revolution Medicines, Inc. | Healthcare | $6.4M | 0.4% | 34K | — | |||
| 60 | $FANG | Diamondback Energy, Inc. | Energy | $5.7M | 0.3% | 32K | — | |||
| 61 | $FWONA | Liberty Media Corp | Communication Services | $5.6M | 0.3% | 64K | -4% | |||
| 62 | $EL | ESTEE LAUDER COMPANIES INC | Consumer Staples | $5.6M | 0.3% | 71K | — | |||
| 63 | $C | CITIGROUP INC | Financials | $5.6M | 0.3% | 40K | +0.4% | |||
| 64 | $RTX | RTX Corp | Industrials | $5.5M | 0.3% | 29K | -8% | |||
| 65 | $TECH | BIO-TECHNE Corp | Healthcare | $5.4M | 0.3% | 77K | -16% | |||
| 66 | $BAC | BANK OF AMERICA CORP /DE/ | Financials | $5.3M | 0.3% | 92K | — | |||
| 67 | $IBKR | Interactive Brokers Group, Inc. | Financials | $5.2M | 0.3% | 60K | -5% | |||
| 68 | — | VANGUARD DIVIDEND APPRECIATION - COM | — | $5.1M | 0.3% | 22K | — | |||
| 69 | $MMM | 3M CO | Healthcare | $5.0M | 0.3% | 31K | — | |||
| 70 | $MIDD | MIDDLEBY Corp | Industrials | $5.0M | 0.3% | 29K | — | |||
| 71 | $LLYVA | Liberty Live Holdings, Inc. | Communication Services | $5.0M | 0.3% | 49K | -0.1% | |||
| 72 | $CVX | CHEVRON CORP | Energy | $5.0M | 0.3% | 30K | — | |||
| 73 | $SYK | STRYKER CORP | Healthcare | $4.8M | 0.3% | 15K | — | |||
| 74 | $WEC | WEC ENERGY GROUP, INC. | Utilities | $4.7M | 0.3% | 41K | — | |||
| 75 | $IBM | INTERNATIONAL BUSINESS MACHINES CORP | Technology | $4.7M | 0.3% | 17K | — | |||
| 76 | $LBTYA | Liberty Global Ltd. | Communication Services | $4.7M | 0.3% | 423K | -2% | |||
| 77 | — | ISHARES S&P 500/BARRA GROWTH I - COM | — | $4.6M | 0.3% | 34K | — | |||
| 78 | $TEL | TE Connectivity plc | Technology | $4.5M | 0.3% | 22K | — | |||
| 79 | $RBRK | Rubrik, Inc. | Technology | $4.3M | 0.3% | 54K | — | |||
| 80 | $WAT | WATERS CORP /DE/ | Healthcare | $4.3M | 0.3% | 11K | — | |||
| 81 | $EXPE | Expedia Group, Inc. | Consumer Discretionary | $4.2M | 0.2% | 16K | — | |||
| 82 | $LBRDA | Liberty Broadband Corp | Communication Services | $4.0M | 0.2% | 122K | +0.4% | |||
| 83 | $ETN | Eaton Corp plc | Industrials | $3.8M | 0.2% | 8,976 | — | |||
| 84 | — | VANGUARD MSCI EUROPEAN INDEX E - COM | — | $3.5M | 0.2% | 40K | — | |||
| 85 | — | WISDOMTREE JAPAN HEDGED EQUITY - COM | — | $3.5M | 0.2% | 20K | — | |||
| 86 | $FSLR | FIRST SOLAR, INC. | Technology | $3.4M | 0.2% | 15K | — | |||
| 87 | $META | Meta Platforms, Inc. | Technology | $3.2M | 0.2% | 5,710 | -0.3% | |||
| 88 | — | VANECK GOLD MINERS ETF - COM | — | $3.2M | 0.2% | 43K | — | |||
| 89 | $TVTX | Travere Therapeutics, Inc. | Healthcare | $3.2M | 0.2% | 56K | — | |||
| 90 | $ILMN | ILLUMINA, INC. | Healthcare | $3.2M | 0.2% | 18K | — | |||
| 91 | $MRVL | Marvell Technology, Inc. | Technology | $3.1M | 0.2% | 11K | — | |||
| 92 | $TJX | TJX COMPANIES INC /DE/ | Consumer Discretionary | $3.1M | 0.2% | 21K | -7% | |||
| 93 | $TSLA | Tesla, Inc. | Consumer Discretionary | $3.0M | 0.2% | 7,181 | +18% | |||
| 94 | $INTU | INTUIT INC. | Technology | $3.0M | 0.2% | 12K | -21% | |||
| 95 | $PG | PROCTER & GAMBLE Co | Consumer Staples | $3.0M | 0.2% | 20K | — | |||
| 96 | $HUM | HUMANA INC | Healthcare | $2.9M | 0.2% | 7,351 | — | |||
| 97 | $WFC | WELLS FARGO & COMPANY/MN | Financials | $2.9M | 0.2% | 35K | -2% | |||
| 98 | — | PEOPLE INCORPORATED - COM | — | $2.7M | 0.2% | 59K | — | |||
| 99 | $ELAN | Elanco Animal Health Inc | Healthcare | $2.7M | 0.2% | 111K | — | |||
| 100 | $OKTA | Okta, Inc. | Technology | $2.7M | 0.2% | 20K | -73% | |||
| 101 | $DHR | DANAHER CORP /DE/ | Healthcare | $2.7M | 0.1% | 14K | +6% | |||
| 102 | $CF | CF Industries Holdings, Inc. | Materials | $2.6M | 0.1% | 24K | New | |||
| 103 | $NEE | NEXTERA ENERGY INC | Utilities | $2.6M | 0.1% | 30K | +4% | |||
| 104 | $GLIBA | Liberty Capital Corp/NV | Communication Services | $2.6M | 0.1% | 121K | -9% | |||
| 105 | — | VANGUARD FTSE ALL-WORLD EX-US - COM | — | $2.6M | 0.1% | 31K | — | |||
| 106 | $LBTYA | Liberty Global Ltd. | Communication Services | $2.5M | 0.1% | 221K | -0.1% | |||
| 107 | $COST | COSTCO WHOLESALE CORP /NEW | Consumer Staples | $2.4M | 0.1% | 2,575 | — | |||
| 108 | $A | AGILENT TECHNOLOGIES, INC. | Healthcare | $2.3M | 0.1% | 18K | — | |||
| 109 | $FERG | Ferguson Enterprises Inc. /DE/ | Consumer Discretionary | $2.3M | 0.1% | 9,643 | — | |||
| 110 | $WDAY | Workday, Inc. | Technology | $2.3M | 0.1% | 19K | -29% | |||
| 111 | $MCD | MCDONALDS CORP | Consumer Discretionary | $2.3M | 0.1% | 8,445 | — | |||
| 112 | $ALNY | ALNYLAM PHARMACEUTICALS, INC. | Healthcare | $2.2M | 0.1% | 7,400 | — | |||
| 113 | $AXP | AMERICAN EXPRESS CO | Financials | $2.2M | 0.1% | 6,386 | — | |||
| 114 | $CEG | Constellation Energy Corp | Utilities | $2.1M | 0.1% | 8,635 | +0.2% | |||
| 115 | $LBRDA | Liberty Broadband Corp | Communication Services | $2.1M | 0.1% | 64K | -4% | |||
| 116 | $VRTX | VERTEX PHARMACEUTICALS INC / MA | Healthcare | $2.0M | 0.1% | 4,103 | — | |||
| 117 | $ISRG | INTUITIVE SURGICAL INC | Healthcare | $2.0M | 0.1% | 5,121 | — | |||
| 118 | $RRC | RANGE RESOURCES CORP | Energy | $2.0M | 0.1% | 54K | — | |||
| 119 | $RDDT | Reddit, Inc. | Technology | $2.0M | 0.1% | 11K | New | |||
| 120 | $LECO | LINCOLN ELECTRIC HOLDINGS INC | Industrials | $1.9M | 0.1% | 7,000 | — | |||
| 121 | $CW | CURTISS WRIGHT CORP | Industrials | $1.8M | 0.1% | 2,372 | — | |||
| 122 | $PEN | Penumbra Inc | Healthcare | $1.7M | 0.1% | 5,500 | — | |||
| 123 | $UBER | Uber Technologies, Inc | Technology | $1.7M | 0.1% | 23K | New | |||
| 124 | $INTC | INTEL CORP | Technology | $1.6M | 0.1% | 12K | — | |||
| 125 | — | ISHARES MSCI JAPAN SMALL CAP E - COM | — | $1.6M | 0.1% | 15K | — | |||
| 126 | $MELI | MERCADOLIBRE INC | Consumer Discretionary | $1.5M | 0.1% | 900 | New | |||
| 127 | $ABBV | AbbVie Inc. | Healthcare | $1.5M | 0.1% | 5,877 | +0.3% | |||
| 128 | $LOW | LOWES COMPANIES INC | Consumer Discretionary | $1.4M | 0.1% | 6,503 | — | |||
| 129 | $EOG | EOG RESOURCES INC | Energy | $1.4M | 0.1% | 11K | +0.3% | |||
| 130 | $INSM | INSMED Inc | Healthcare | $1.4M | 0.1% | 13K | +57% | |||
| 131 | $KMB | KIMBERLY CLARK CORP | Materials | $1.3M | 0.1% | 12K | — | |||
| 132 | $IAU | ISHARES GOLD TRUST | Financials | $1.3M | 0.1% | 17K | — | |||
| 133 | $LILA | Liberty Latin America Ltd. | Communication Services | $1.2M | 0.1% | 158K | -74% | |||
| 134 | — | ISHARES RUSSELL 1000 VALUE IND - COM | — | $1.2M | 0.1% | 5,050 | — | |||
| 135 | $PFE | PFIZER INC | Healthcare | $1.2M | 0.1% | 50K | — | |||
| 136 | $NBIX | NEUROCRINE BIOSCIENCES INC | Healthcare | $1.2M | 0.1% | 7,000 | — | |||
| 137 | $AGCO | AGCO CORP /DE | Industrials | $1.1M | 0.1% | 9,325 | — | |||
| 138 | $SONY | Sony Group Corp | Technology | $1.1M | 0.1% | 55K | — | |||
| 139 | $PRVA | Privia Health Group, Inc. | Healthcare | $1.1M | 0.1% | 42K | — | |||
| 140 | — | VANGUARD TOTAL STOCK MKT ETF - COM | — | $1.1M | 0.1% | 2,882 | — | |||
| 141 | $ETR | ENTERGY CORP /DE/ | Utilities | $1.0M | 0.1% | 8,966 | — | |||
| 142 | $BATRA | Atlanta Braves Holdings, Inc. | Communication Services | $1.0M | 0.1% | 19K | -0.4% | |||
| 143 | — | ISHARES S&P 500 VALUE INDEX ET - COM | — | $987K | 0.1% | 4,350 | — | |||
| 144 | $SXI | STANDEX INTERNATIONAL CORP/DE/ | Industrials | $960K | 0.1% | 2,685 | — | |||
| 145 | $PODD | INSULET CORP | Healthcare | $956K | 0.1% | 6,285 | -2% | |||
| 146 | $TT | Trane Technologies plc | Technology | $923K | 0.1% | 1,880 | — | |||
| 147 | $RBLX | Roblox Corp | Technology | $921K | 0.1% | 17K | — | |||
| 148 | — | ISHARES RUSSELL MIDCAP INDEX E - COM | — | $920K | 0.1% | 8,344 | — | |||
| 149 | $HCA | HCA Healthcare, Inc. | Healthcare | $895K | 0.1% | 2,298 | — | |||
| 150 | $WMT | Walmart Inc. | Consumer Staples | $850K | 0.1% | 7,512 | — |
What changed in Q2 2026
Against the previous quarter's 13F: 12 new, 27 added to, 49 trimmed, 7 sold out. Share-count changes; largest moves by dollar size first.
New positions (12)
$CFCF Industries Holdings, Inc.$2.6M
first bought this quarter
$RDDTReddit, Inc.$2.0M
first bought this quarter
$UBERUber Technologies, Inc$1.7M
first bought this quarter
$MELIMERCADOLIBRE INC$1.5M
first bought this quarter
- HONEYWELL AEROSPACE - COM$623K
first bought this quarter
- LIBERTY LATIN AMERICA 9 CUM P - COM$472K
first bought this quarter
+6 more in the Excel export
Added to (27)
- ROCHE HOLDING LTD SPONSORED AD - COM+64%
now $11.9M
$GFLGFL Environmental Inc.+44%
now $10.8M · held 10+ qtrs, 2 adds in a row
now $74.0M · held 10+ qtrs, 3 adds in a row
now $31.3M · held 10+ qtrs, 2 adds in a row
now $22.1M · held 10+ qtrs
$VVISA INC.+12%
now $14.4M · held 10+ qtrs, 9 adds in a row
+21 more in the Excel export
Trimmed (49)
$OKTAOkta, Inc.-73%
now $2.7M · held 10+ qtrs
now $100.2M · held 10+ qtrs, 4 trims in a row
$LILALiberty Latin America Ltd.-74%
now $1.2M · held 10+ qtrs, 5 trims in a row
$DBRG-PHDigitalBridge Group, Inc.-95%
now $189K
now $63.9M · held 10+ qtrs
- ASTRAZENECA PLC - COM-25%
now $7.1M
+43 more in the Excel export
Sold out (7)
$CTSHCOGNIZANT TECHNOLOGY SOLUTIONS CORPwas $1.8M
held 9+ qtrs
$RAREUltragenyx Pharmaceutical Inc.was $529K
held 8 qtrs
$IQVIQVIA HOLDINGS INC.was $511K
held 9+ qtrs
$SEESEALED AIR CORP/DEwas $252K
$CHTRCHARTER COMMUNICATIONS, INC. /MO/was $243K
$APTVAptiv PLCwas $208K
+1 more in the Excel export
Holdings by quarter
Every 13F S&CO INC has filed, 40 earlier quarters. Pick one to see what it held then.
Is it too late to follow S?
Q2 2026 13F filed with the SEC on Aug 6, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of S's top 20 holdings: 67/100 (our AI quality score, weighted by position size; 18 of the 20 are scored)
Top 10 since filing
+0.0%
Value-weighted move of the 10 largest stock positions
Turnover
2%
Last quarter; 9% over the last 4
Top 10 weight
38%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
98%
Share of portfolio value in positions held a year or more
Highest-quality names it owns(among its 100 largest positions)
The 8 highest-scoring companies in this portfolio are a Pro feature.
How these are measured
- Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
- Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
- Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q1 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
- Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
- Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.
Portfolio Overview
S&CO INC disclosed 222 positions worth $1.7B in its Form 13F-HR for Q2 2026, led by $CAT (CATERPILLAR INC) at 5.8% of the equity portfolio, followed by $BRK.B and $MSFT. During the quarter the fund opened 12 new positions and exited 7 — including a new stake in $CF and a full exit from $CTSH. The portfolio is most concentrated in Technology (22.1% of disclosed assets). All figures are sourced directly from S&CO INC’s Form 13F-HR filing with the SEC under CIK 1082461.
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AI-Powered Hedge Fund Analysis: S&CO INC
13F Pro is an AI hedge fund tracker and stock research platform. For S&CO INC (SEC CIK: 1082461), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.
Every holding in S&CO INC's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.