PRIMECAP MANAGEMENT CO/CA/

CIK 0000763212 · Q2 2026

13F Equity AUM

$169.1B

+33.1% QoQ

Positions

322

+2 QoQ

AUM Rank

#73

Top 0.8%

Skill Alpha (FF)

+3.1%/yr^ns

No Clear Edge

Rank #1,030 · Top 12%

vs S&P +4.3%/yr (unadj.)

Quarters Tracked

~13 years

Portfolio Concentration

Top 5: 32.6%Top 10: 42.5%Top 20: 56.7%

MU13.1%

LLY6.5%

INTC6.2%

KLAC3.7%

GOOGL3.1%

FLEX2.2%

AZN2.0%

NVDA2.0%

BIIB1.9%

AMZN1.7%

Others (312)57.5%

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

Sector Allocation

Technology42.7%

Healthcare21.1%

Industrials10.9%

Consumer Cyclical7.9%

Financial Services6.7%

Communication Services6.1%

Other4.6%

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

Position Sizing

Positions: 322Median: 0.05%Avg: 0.31%

0–0.5%

278(25.0%)

0.5–1%

22(16.1%)

1–3%

17(26.2%)

3–5%

2(6.8%)

5%+

3(25.8%)

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

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Portfolio Overlap

Shared: 0Unique: 322vs 20 funds

0%Low

322

Fund positions

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.

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Position Changes This Quarter

New13Increased84Decreased177Exited9

New Positions

FEDEX FGHT HLDG CO I…0.4%

+4.0M

SPACE EXPLORATION TE…0.1%

+1.4M

CARNIVAL CORP LTD0.1%

+5.4M

DVN0.0%

+1.6M

DUPONT DE NEMOURS IN…0.0%

+521K

HONEYWELL INTL INC0.0%

+244K

FT20.0%

+2.2M

HONEYWELL AEROSPACE …0.0%

+244K

MCK0.0%

+20K

DC40.0%

+192K

Increased

AAL0.8%

+21.7M(+44%)

KLAC3.7%

+18.1M(+742%)

BSX1.3%

+18.0M(+55%)

ALLO0.0%

+4.7M(+57%)

ERIC0.3%

+4.1M(+11%)

7HP0.3%

+3.4M(+16%)

LUV1.5%

+1.7M(+4%)

SCHW1.4%

+1.7M(+7%)

BAH0.2%

+1.6M(+32%)

ILMN0.4%

+1.4M(+70%)

Decreased

MU13.1%

-2,656,968(-12%)

AMGN1.4%

-2,117,167(-24%)

DOW0.0%

-2,103,130(-48%)

GTM0.0%

-2,041,412(-63%)

FLEX2.2%

-2,024,573(-8%)

NWL0.0%

-1,661,690(-22%)

TXN1.5%

-1,139,777(-12%)

WFC0.3%

-1,011,080(-13%)

NVSN0.6%

-975,230(-13%)

INTC6.2%

-511,010(-1%)

Exited

CCL

-5,363,703

HON

-488,200

-1,997,159

CTRA

-2,289,750

AM6

-585,400

FITB

-196,260

-19,500

MDT

-2,440

HCAT

-340,418

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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