Latest S&CO INC Stock Portfolio
S&CO INC Performance:
2025 Q4: 1.57%YTD: 11.51%2024: 8.56%
Performance for 2025 Q4 is 1.57%, and YTD is 11.51%, and 2024 is 8.56%.
About S&CO INC and 13F Hedge Fund Stock Holdings
On 2026-02-05, the fund reported it's updated stock portfolio. In the 13F Holdings report, S&CO INC reported an equity portfolio of $1.6 Billions as of 31 Dec, 2025.
The top stock holdings of S&CO INC are MSFT, , XOM. The fund has invested 5.2% of it's portfolio in MICROSOFT CORP and 5.1% of portfolio in BERKSHIRE HATHAWAY INC CL B.
The fund managers got completely rid off LIBERTY MEDIA CORP-LIBERTY LIV (BATRA), FMC CORP (FMC) and OCCIDENTAL PETROLEUM CORP (OXY) stocks. They significantly reduced their stock positions in CHARTER COMMUNICATIONS INC (CHTR), BLOOM ENERGY CORPORATION CLASS (BE) and ZOETIS INC COM USD0.01 CL A (ZTS). S&CO INC opened new stock positions in LIBERTY MEDIA CORP-LIBERTY LIV, DIAMONDBACK ENERGY INC (FANG) and SEALED AIR CORPORATION (SEE). The fund showed a lot of confidence in some stocks as they added substantially to REVOLUTION MEDICINES INC (RVMD), GCI LIBERTY, INC. CLASS C and VISA INC. CL A (V).
The top stock holdings of S&CO INC are MSFT, , XOM. The fund has invested 5.2% of it's portfolio in MICROSOFT CORP and 5.1% of portfolio in BERKSHIRE HATHAWAY INC CL B.
The fund managers got completely rid off LIBERTY MEDIA CORP-LIBERTY LIV (BATRA), FMC CORP (FMC) and OCCIDENTAL PETROLEUM CORP (OXY) stocks. They significantly reduced their stock positions in CHARTER COMMUNICATIONS INC (CHTR), BLOOM ENERGY CORPORATION CLASS (BE) and ZOETIS INC COM USD0.01 CL A (ZTS). S&CO INC opened new stock positions in LIBERTY MEDIA CORP-LIBERTY LIV, DIAMONDBACK ENERGY INC (FANG) and SEALED AIR CORPORATION (SEE). The fund showed a lot of confidence in some stocks as they added substantially to REVOLUTION MEDICINES INC (RVMD), GCI LIBERTY, INC. CLASS C and VISA INC. CL A (V).
S&CO INC Annual Return Estimates Vs S&P 500
Our best estimate is that S&CO INC made a return of 1.57% in the last quarter. In trailing 12 months, it's portfolio return was 11.51%.
- Performance
- S&P 500
New Buys
| Ticker | $ Bought |
|---|---|
| liberty media corp-liberty liv | 14,683,000 |
| diamondback energy inc | 4,705,000 |
| liberty media corp-liberty liv | 3,875,000 |
| monday.com | 1,014,000 |
| sealed air corporation | 248,000 |
| ormat technologies inc com | 220,000 |
| fair isaac corp com | 219,000 |
| citizens financial group inc c | 204,000 |
New stocks bought by S&CO INC
Additions
| Ticker | % Inc. |
|---|---|
| revolution medicines inc | 54.12 |
| gci liberty, inc. class c | 50.45 |
| visa inc. cl a | 34.98 |
| intuit, inc. | 20.66 |
| eog resources inc | 13.71 |
| nvidia corp com | 11.87 |
| oracle corp com | 6.35 |
| aes corporation | 6.25 |
Additions to existing portfolio by S&CO INC
Reductions
| Ticker | % Reduced |
|---|---|
| charter communications inc | -70.75 |
| bloom energy corporation class | -50.00 |
| zoetis inc com usd0.01 cl a | -41.99 |
| liberty latin america-cl c | -41.72 |
| canadian pacific kansas city l | -32.04 |
| cameco corp | -31.14 |
| liberty broadband-c | -23.25 |
| liberty latin america-cl a | -22.85 |
S&CO INC reduced stake in above stock
Sold off
| Ticker | $ Sold |
|---|---|
| fmc corp | -12,470,000 |
| liberty media corp-liberty liv | -17,164,000 |
| occidental petroleum corp | -4,966,000 |
| liberty media corp-liberty liv | -4,571,000 |
| sunrise communicat-cl a | -2,806,000 |
| baxter international inc | -907,000 |
| akamai technologies | -411,000 |
| mondelez international inc com | -230,000 |
S&CO INC got rid off the above stocks
Sector Distribution
S&CO INC has about 21.3% of it's holdings in Others sector.
- Others
- Healthcare
- Technology
- Industrials
- Basic Materials
- Financial Services
- Energy
- Consumer Cyclical
- Communication Services
- Consumer Defensive
| Sector | % |
|---|---|
| Others | 21.3 |
| Healthcare | 17 |
| Technology | 14.8 |
| Industrials | 10.7 |
| Basic Materials | 8.3 |
| Financial Services | 5.8 |
| Energy | 5.7 |
| Consumer Cyclical | 5.2 |
| Communication Services | 5.2 |
| Consumer Defensive | 5.1 |
Market Cap. Distribution
S&CO INC has about 72.6% of it's portfolio invested in the large-cap and mega-cap stocks.
- LARGE-CAP
- MEGA-CAP
- UNALLOCATED
- MID-CAP
| Category | % |
|---|---|
| LARGE-CAP | 37.9 |
| MEGA-CAP | 34.7 |
| UNALLOCATED | 21.3 |
| MID-CAP | 6 |
Stocks belong to which Index?
About 74.4% of the stocks held by S&CO INC either belong to S&P 500 or RUSSELL 2000 index.
- S&P 500
- Others
- RUSSELL 2000
| Index | % |
|---|---|
| S&P 500 | 70.6 |
| Others | 25.6 |
| RUSSELL 2000 | 3.8 |
S&CO INC Holdings Map
This heatmap illustrates the top 50 positions within the fund's portfolio.
Current Stock Holdings of S&CO INC
S&CO INC has 218 stocks in it's portfolio. About 37.7% of the portfolio is in top 10 stocks. MOS proved to be the most loss making stock for the portfolio. CAT was the most profitable stock for S&CO INC last quarter.
Last Reported on: 05 Feb, 2026| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options | |
|---|---|---|---|---|---|---|---|---|
| A | agilent technologies inc com | 0.15 | 17,674 | 2,404,000 | unchanged | 0.00 | ||
| AAPL | apple inc | 3.93 | 232,949 | 63,329,000 | reduced | -0.07 | ||
| ABBV | abbvie inc | 0.09 | 6,092 | 1,391,000 | unchanged | 0.00 | ||
| ABNB | airbnb inc a | 0.53 | 62,355 | 8,462,000 | unchanged | 0.00 | ||
| ABT | abbott labs | 1.76 | 226,710 | 28,404,000 | reduced | -0.55 | ||
| ACWV | ishares msci japan small cap e | 0.09 | 15,000 | 1,377,000 | unchanged | 0.00 | ||
| ADBE | adobe inc | 0.08 | 3,887 | 1,360,000 | unchanged | 0.00 | ||
| ADI | analog devices inc com | 0.42 | 24,789 | 6,722,000 | unchanged | 0.00 | ||
| ADP | automatic data processing inc | 3.24 | 202,743 | 52,151,000 | reduced | -1.54 | ||
| AES | aes corporation | 0.01 | 17,000 | 243,000 | added | 6.25 | ||
| AFK | vaneck gold miners etf | 0.23 | 42,589 | 3,652,000 | reduced | -1.41 | ||
| AFL | aflac inc com | 0.57 | 83,570 | 9,215,000 | unchanged | 0.00 | ||
| AGCO | agco corp com | 0.06 | 9,325 | 972,000 | unchanged | 0.00 | ||
| AGZD | wisdomtree japan hedged equity | 0.18 | 20,000 | 2,883,000 | unchanged | 0.00 | ||
| AKAM | akamai technologies | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ALGN | align technology inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ALKS | alkermes plc | 0.35 | 201,760 | 5,645,000 | added | 0.27 | ||
| ALNY | alnylam pharmaceuticals inc | 0.20 | 8,200 | 3,260,000 | unchanged | 0.00 | ||
| AMGN | amgen inc com | 0.02 | 834 | 272,000 | unchanged | 0.00 | ||
| AMZN | amazon.com inc | 2.73 | 190,573 | 43,988,000 | added | 0.78 | ||