S&CO INC

CIK

1082461

Location

BOSTON, MA

Portfolio Value

Mid $1,214,015,071

Diversification

Diversified

Filing Date

Global Rank

#1,702 / 8,517 ▼ 295

Top Industry

Specialty Chemicals 9.8%

3Y Alpha vs SPY

-4.5%

Period ended 46 days ago

Filed Aug 6, 2026 · 9d

26 quarters · since Mar 2020

Clone Performance

Aug 2023–Aug 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio

+55.9%

SPY

+75.3%

Annualised alpha

-4.6%

Max drawdown

−15.9%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. Returns use comparable raw closes and exclude dividends; a captured split can shorten the simulated window. It tracks 100% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

124 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

8.3%

+2.5 pts

Top 5

32.6%

+8.6 pts

Top 10

53.8%

+12.2 pts

HHI

368

Diversified+128

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	21.0%	$254,607,455	19
Financial Services	14.1%	$170,570,777	18
Healthcare	12.8%	$155,751,861	18
Industrials	12.3%	$149,797,225	27
Basic Materials	11.8%	$143,338,163	7
Communication Services	9.7%	$117,726,035	10
Consumer Defensive	7.0%	$85,451,552	9
Consumer Cyclical	6.3%	$76,607,258	7
Energy	4.8%	$58,053,617	5
Unclassified	0.1%	$1,296,808	1
Utilities	0.1%	$814,320	3

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

13 positions

Ticker	Company	Δ Shares	Shares	Value
MOS	Mosaic Co	+77,056	1,040,723	$22,052,920
AR	ANTERO RESOURCES Corp	+16,998	504,602	$17,731,714
MSFT	Microsoft Corp	+8,143	198,340	$73,984,786
PANW	Palo Alto Networks Inc	+4,927	91,852	$31,323,369
INSM	INSMED Inc	+4,700	13,000	$1,386,060
V	Visa Inc.	+4,337	41,890	$14,372,040
MA	Mastercard Inc	+877	22,358	$11,483,068
DHR	Danaher Corp /De/	+800	13,989	$2,664,624
LLY	ELI LILLY & Co	+781	22,300	$26,747,291
APD	Air Products & Chemicals, Inc.	+166	94,594	$27,733,068
C	Citigroup Inc	+153	39,794	$5,569,568
LIN	Linde PLC	+87	26,139	$13,564,572
EOG	Eog Resources Inc	+30	10,865	$1,409,516
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
LILA	Liberty Latin America Ltd.	−464,250	218,073	$1,706,675
LBTYA	Liberty Global Ltd.	−430,585	220,823	$2,510,757
LLYVA	Liberty Live Holdings, Inc.	−176,624	49,334	$4,995,560
FWONA	Liberty Media Corp	−124,868	64,254	$5,624,795
OKTA	Okta, Inc.	−53,080	19,699	$2,687,928
FUL	Fuller H B Co	−19,390	241,781	$14,093,414
CCJ	Cameco Corp	−13,948	313,626	$31,945,944
ABT	Abbott Laboratories	−13,199	186,521	$16,924,915
SIRI	Sirius Xm Holdings Inc.	−12,221	569,206	$16,814,345
AAPL	Apple Inc.	−11,650	220,707	$63,863,777
PYPL	PayPal Holdings, Inc.	−9,253	436,017	$18,827,214
CAT	Caterpillar Inc	−4,751	94,076	$100,181,532
INTU	Intuit Inc.	−3,022	11,518	$3,006,198
HON	Honeywell International Inc	−2,821	2,821	$631,621
LBRDA	Liberty Broadband Corp	−2,189	185,672	$6,176,733
BE	Bloom Energy Corp	−2,000	2,000	$605,400
GE	General Electric Co	−1,800	35,671	$13,331,322
TJX	Tjx Companies Inc /De/	−1,470	20,636	$3,126,354
PEP	Pepsico Inc	−1,305	75,677	$10,246,665
ADI	Analog Devices Inc	−1,000	23,789	$9,448,277
KMPR	KEMPER Corp	−810	19,060	$513,857
WFC	Wells Fargo & Company/Mn	−700	34,949	$2,888,185
CHD	Church & Dwight Co Inc /De/	−575	649,655	$62,938,576
TMO	Thermo Fisher Scientific Inc.	−440	41,387	$20,749,786
MS	Morgan Stanley	−315	33,987	$7,104,642
No positions match the current search.

New Positions

Positions the filer opened this quarter

6 positions

Ticker	Company	Shares	Value
CF	CF Industries Holdings, Inc.	24,300	$2,630,718
ENPH	Enphase Energy, Inc.	9,000	$443,160
ROK	Rockwell Automation, Inc	605	$299,523
HXL	Hexcel Corp /De/	2,400	$240,144
ON	On Semiconductor Corp	2,200	$207,988
BNY	Bank of New York Mellon Corp	1,408	$203,610
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
XOM	ExxonMobil Holdings Corp	526,003	$89,241,668
MRK	Merck & Co., Inc.	425,528	$51,186,763
GLD	Spdr Gold Trust	80,565	$34,666,313
NVDA	Nvidia Corp	72,156	$12,584,006
UNH	Unitedhealth Group Inc	44,072	$11,925,442
P	Everpure, Inc.	190,420	$11,242,396
GEV	GE Vernova Inc.	12,241	$10,685,168
AZN	Astrazeneca PLC	50,765	$10,011,873
MDT	Medtronic plc	108,128	$9,369,291
ALKS	Alkermes plc.	244,760	$8,654,713
GFL	GFL Environmental Inc.	203,174	$8,476,419
CSCO	Cisco Systems, Inc.	107,546	$8,344,494
JPM	Jpmorgan Chase & Co	23,935	$7,040,719
EW	Edwards Lifesciences Corp	81,497	$6,526,279
FANG	Diamondback Energy, Inc.	32,200	$6,368,838
CB	Chubb Ltd	18,916	$6,165,291
RTX	RTX Corp	31,418	$6,060,532
GLIBA	Liberty Capital Corp/NV	144,306	$5,365,933
TECH	BIO-TECHNE Corp	90,695	$4,739,720
WEC	Wec Energy Group, Inc.	40,672	$4,708,597
VIG	Vanguard Dividend Appreciation ETF	21,632	$4,652,177
MMM	3M Co	31,055	$4,510,117
IBKR	Interactive Brokers Group, Inc.	63,080	$4,230,775
EXPE	Expedia Group, Inc.	16,285	$3,760,043
DBRG	DigitalBridge Group, Inc.	235,600	$3,632,952
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

124 tracked positions · $1,214,015,071 total · filing declares 222 positions · $1,731,078 · as of Jun 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Technology Utilities

Showing 1–50 of 124 positions by value · page 1 of 3

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
CAT	Caterpillar Inc Industrials	Reduced	94,076	-4,751	$100,181,532	+43.1%	8.25%
BRK-B	Berkshire Hathaway Inc Financial Services	Held	164,075	0	$82,101,489	+4.4%	6.76%
GOOGL	Alphabet Inc. Communication Services	Reduced	212,970	-230	$75,631,912	+23.5%	6.23%
MSFT	Microsoft Corp Technology	Added	198,340	+8,143	$73,984,786	+5.1%	6.09%
AAPL	Apple Inc. Technology	Reduced	220,707	-11,650	$63,863,777	+8.3%	5.26%
CHD	Church & Dwight Co Inc /De/ Consumer Defensive	Reduced	649,655	-575	$62,938,576	+3.7%	5.18%
ECL	Ecolab Inc. Basic Materials	Reduced	225,862	-198	$62,927,411	+4.6%	5.18%
AMZN	Amazon Com Inc Consumer Cyclical	Reduced	196,975	-178	$46,947,021	+14.3%	3.87%
ADP	Automatic Data Processing Inc Technology	Held	201,978	0	$45,232,973	+10.2%	3.73%
JNJ	Johnson & Johnson Healthcare	Held	157,098	0	$39,898,179	+3.9%	3.29%
CCJ	Cameco Corp Energy	Reduced	313,626	-13,948	$31,945,944	−10.2%	2.63%
PANW	Palo Alto Networks Inc Technology	Added	91,852	+4,927	$31,323,369	+124.8%	2.58%
APD	Air Products & Chemicals, Inc. Basic Materials	Added	94,594	+166	$27,733,068	+1.1%	2.28%
LLY	ELI LILLY & Co Healthcare	Added	22,300	+781	$26,747,291	+35.1%	2.20%
MOS	Mosaic Co Basic Materials	Added	1,040,723	+77,056	$22,052,920	−10.3%	1.82%
TMO	Thermo Fisher Scientific Inc. Healthcare	Reduced	41,387	-440	$20,749,786	+0.9%	1.71%
RPRX	Royalty Pharma plc Healthcare	Reduced	358,302	-75	$20,089,993	+16.9%	1.65%
UNP	Union Pacific Corp Industrials	Held	69,353	0	$18,864,016	+12.1%	1.55%
PYPL	PayPal Holdings, Inc. Financial Services	Reduced	436,017	-9,253	$18,827,214	−6.5%	1.55%
AR	ANTERO RESOURCES Corp Energy	Added	504,602	+16,998	$17,731,714	−14.3%	1.46%
ABT	Abbott Laboratories Healthcare	Reduced	186,521	-13,199	$16,924,915	−17.5%	1.39%
SIRI	Sirius Xm Holdings Inc. Communication Services	Reduced	569,206	-12,221	$16,814,345	+25.3%	1.39%
V	Visa Inc. Financial Services	Added	41,890	+4,337	$14,372,040	+26.6%	1.18%
FUL	Fuller H B Co Basic Materials	Reduced	241,781	-19,390	$14,093,414	−12.5%	1.16%
LIN	Linde PLC Basic Materials	Added	26,139	+87	$13,564,572	+5.0%	1.12%
GE	General Electric Co Industrials	Reduced	35,671	-1,800	$13,331,322	+25.4%	1.10%
MA	Mastercard Inc Financial Services	Added	22,358	+877	$11,483,068	+7.0%	0.95%
PEP	Pepsico Inc Consumer Defensive	Reduced	75,677	-1,305	$10,246,665	−14.3%	0.84%
AFL	Aflac Inc Financial Services	Held	83,570	0	$9,798,582	+6.9%	0.81%
ADI	Analog Devices Inc Technology	Reduced	23,789	-1,000	$9,448,277	+19.8%	0.78%
ABNB	Airbnb, Inc. Consumer Cyclical	Held	62,355	0	$8,923,000	+13.3%	0.73%
APO	Apollo Global Management, Inc. Financial Services	Held	62,880	0	$7,439,332	+6.2%	0.61%
HD	Home Depot, Inc. Consumer Cyclical	Held	20,887	0	$7,366,427	+7.2%	0.61%
BSX	Boston Scientific Corp Healthcare	Held	169,791	0	$7,246,679	−32.0%	0.60%
MS	Morgan Stanley Financial Services	Reduced	33,987	-315	$7,104,642	+25.9%	0.59%
ROL	Rollins Inc Consumer Cyclical	Held	156,393	0	$6,527,843	−21.8%	0.54%
LBRDA	Liberty Broadband Corp Communication Services	Reduced	185,672	-2,189	$6,176,733	−34.6%	0.51%
FWONA	Liberty Media Corp Communication Services	Reduced	64,254	-124,868	$5,624,795	−64.0%	0.46%
EL	Estee Lauder Companies Inc Consumer Defensive	Held	70,764	0	$5,586,817	+10.0%	0.46%
C	Citigroup Inc Financial Services	Added	39,794	+153	$5,569,568	+23.9%	0.46%
BAC	Bank Of America Corp /De/ Financial Services	Held	92,484	0	$5,269,738	+16.9%	0.43%
MIDD	MIDDLEBY Corp Industrials	Held	29,100	0	$5,005,489	+29.7%	0.41%
LLYVA	Liberty Live Holdings, Inc. Communication Services	Reduced	49,334	-176,624	$4,995,560	−76.4%	0.41%
CVX	Chevron Corp Energy	Held	30,024	0	$4,976,778	−19.9%	0.41%
SYK	Stryker Corp Healthcare	Held	15,307	0	$4,819,255	−4.2%	0.40%
IBM	International Business Machines Corp Technology	Held	16,788	0	$4,720,953	+16.0%	0.39%
TEL	TE Connectivity plc Technology	Held	22,398	0	$4,515,660	−3.5%	0.37%
RBRK	Rubrik, Inc. Technology	Held	53,612	0	$4,303,971	+63.9%	0.35%
WAT	Waters Corp /De/ Healthcare	Held	11,417	0	$4,281,831	+25.9%	0.35%
FSLR	First Solar, Inc. Technology	Held	14,596	0	$3,444,072	+19.6%	0.28%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.