S&CO INC

CIK 0001082461 · Q1 2026

13F Equity AUM

$1.6M

-100.0% QoQ

Positions

218

0 QoQ

AUM Rank

#11,905

Top 96%

Skill Alpha (FF)

-2.0%/yr^ns

No Clear Edge

Rank #5,130 · Top 62%

vs S&P -5.5%/yr (unadj.)

Quarters Tracked

~13 years

Portfolio Concentration

Top 5: 22.9%Top 10: 38.5%Top 20: 56.3%

XOM5.5%

BRK/B4.9%

MSFT4.4%

CAT4.3%

CHD3.8%

ECL3.7%

AAPL3.7%

MERCK & CO INC3.2%

AMZN2.5%

ADP2.5%

Others (208)61.5%

HHI (Herfindahl-Hirschman Index) measures portfolio concentration. Low (<1500) = diversified, Moderate (1500-2500), High (>2500) = concentrated bets.

Sector Allocation

Healthcare17.5%

Financial Services15.8%

Technology13.8%

Industrials11.2%

Communication Services10.4%

Energy10.3%

Basic Materials8.8%

Consumer Defensive5.4%

Other6.8%

Portfolio weight by GICS sector based on latest 13F filing. Sectors below 2% are grouped as “Other.”

Position Sizing

Positions: 218Median: 0.15%Avg: 0.46%

0–0.5%

170(21.8%)

0.5–1%

22(15.1%)

1–3%

18(29.7%)

3–5%

7(27.9%)

5%+

1(5.5%)

Count of positions per weight bucket — (%) = combined portfolio weight

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Portfolio Overlap

Shared: 142Unique: 76vs 20 funds

1.9%Low

218

Fund positions

7,299

Consensus CUSIPs

Jaccard similarity of this fund’s portfolio vs the consensus of top 20 funds by AUM. Low (<15%) = contrarian, Moderate (15-40%), High (>40%) = follows the crowd.

Most Similar Funds

Top 9 benchmark funds with highest portfolio overlap (Jaccard similarity)

MORGAN STANLEY

2.7%

JPMORGAN CHASE & CO

2.9%

BlackRock, Inc.

3.4%

BANK OF AMERICA CORP /DE/

2.9%

FMR LLC

4.5%

VANGUARD CAPITAL MANAGEMENT LLC

3.6%

STATE STREET CORP

3.6%

GEODE CAPITAL MANAGEMENT, LLC

3.5%

VANGUARD PORTFOLIO MANAGEMENT LLC

4.2%

Jaccard similarity per fund: shared CUSIPs / (fund A + fund B − shared). Higher values indicate more similar portfolios.

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Position Changes This Quarter

New4Increased36Decreased58Exited4

New Positions

ASTRAZENECA PLC0.6%

+51K

RIG0.0%

+45K

CL0.0%

+2K

CSX0.0%

+5K

Increased

PYPL1.3%

+100K(+29%)

GCI LIBERTY, INC. CL…0.3%

+89K(+196%)

RHHBY0.4%

+87K(+163%)

ALKS0.5%

+43K(+21%)

GFL0.5%

+28K(+16%)

MSFT4.4%

+18K(+10%)

VWO0.4%

+15K(+13%)

OKTA0.4%

+12K(+19%)

AR1.3%

+8K(+2%)

INTU0.4%

+8K(+110%)

Decreased

LILAB0.0%

-213,955(-76%)

LILAB0.3%

-145,159(-19%)

SIRI0.8%

-120,015(-17%)

CCO2.2%

-28,752(-8%)

ABT1.3%

-26,990(-12%)

BEN0.0%

-23,250(-50%)

PROSY1.4%

-13,690(-1%)

MIDD0.2%

-12,700(-30%)

MOS1.5%

-10,205(-1%)

0J7Q0.1%

-10,000(-14%)

Exited

CANADIAN PACIFIC KAN…

-14,000

FICO

-130

XYL

-1,600

LKQ1

-7,200

Quarter-over-quarter changes compared to prior 13F filing. New = first appearance; Exited = no longer held.

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Holdings

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