PRIMECAP MANAGEMENT CO/CA/PRIMECAP MANAGEMENT CO/CA/

Institutional investor · Portfolio as of Q2 2026

Top Holdings324 positions

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Activity:
Stock
Shares
Value
Weight
Avg Buy
Est. P&L
Held
Conviction

MICRON TECHNOLOGY INC

19.2M$22.2B13.1%$31.49+2862.12%
31 qtrssince 2018-Q4
Decreased
0

ELI LILLY & CO

9.2M$11B6.5%$104.89+1019.86%
31 qtrssince 2018-Q4
Decreased
0

INTEL CORP

75.3M$10.5B6.2%$37.69+137.41%
31 qtrssince 2018-Q4
Decreased
0

KLA CORP

20.5M$6.2B3.7%$266.86-34.22%
31 qtrssince 2018-Q4
Increased
94

ALPHABET INC

14.9M$5.3B3.1%$96.25+260.08%
31 qtrssince 2018-Q4
Decreased
0

FLEX LTD

23.4M$3.8B2.2%
Decreased
0

ASTRAZENECA PLC

18.1M$3.4B2.0%$201.76-19.36%
2 qtrssince 2026-Q1
Decreased
0

NVIDIA CORPORATION

17.1M$3.4B2.0%$112.03+94.18%
31 qtrssince 2018-Q4
Decreased
0

BIOGEN INC

15.2M$3.3B1.9%$295.60-26.08%
31 qtrssince 2018-Q4
Increased
52

AMAZON COM INC

12M$2.9B1.7%$182.64+45.88%
31 qtrssince 2018-Q4
Decreased
0

MICROSOFT CORP

7.1M$2.7B1.6%$95.67+436.78%
31 qtrssince 2018-Q4
Decreased
0

TESLA INC

6.1M$2.6B1.5%$214.88+62.30%
31 qtrssince 2018-Q4
Decreased
0

FEDEX CORP

8.2M$2.6B1.5%$145.69+127.12%
31 qtrssince 2018-Q4
Decreased
0

TEXAS INSTRS INC

8.5M$2.5B1.5%$76.19+239.48%
31 qtrssince 2018-Q4
Decreased
0

SOUTHWEST AIRLS CO

48.8M$2.5B1.5%$42.51-6.75%
31 qtrssince 2018-Q4
Increased
52

AMGEN INC

6.8M$2.4B1.4%$154.34+180.18%
31 qtrssince 2018-Q4
Decreased
0

SCHWAB CHARLES CORP

25.1M$2.3B1.4%$81.72+34.81%
31 qtrssince 2018-Q4
Increased
54

UNITED AIRLS HLDGS INC

16.5M$2.2B1.3%$84.92+30.24%
31 qtrssince 2018-Q4
Increased
53

BOSTON SCIENTIFIC CORP

50.5M$2.2B1.3%$39.20+19.48%
31 qtrssince 2018-Q4
Increased
71

ROSS STORES INC

9.1M$1.9B1.1%$78.90+189.66%
31 qtrssince 2018-Q4
Decreased
0
$169.1B
AUM
324
Positions
Q2 2026
Filing
3.0/5
HI score
Quarterly 13F Value Change
-6%Q1'25$121B+4%Q2'25$126.2B+3%Q3'25$130.6B+1%Q4'25$132.1B-4%Q1'26$127B+33%Q2'26$169.1B
Activity profile
$ moved · Q2'26
New3%Increased19%Decreased77%Exited1%
Composition
Equity vs derivatives
Equity100%Puts0%Calls0%
Holding period
Avg 5.3 years
<1Q4%1-4Q5%1-2Y10%2Y+80%

PRIMECAP MANAGEMENT CO/CA/ manages $169.1B across 324 positions as of Q2 2026. Top holdings: MU (13.1%), LLY (6.5%), INTC (6.2%). Fund DNA: Steady Compounder. HoldingsIntel Score: 3/5.0.

Q2 2026 Summary

Active quarter - 13 new positions, 9 exits, 84 increased. Top move: KLAC (INCREASED, conviction 94). Portfolio: $169.1B across 324 positions.

Top holdings by portfolio weight

Total AUM$169B
MU13.12%
LLY6.51%
INTC6.21%
KLAC3.66%
GOOGL3.14%
FLEX2.24%
AZN2.03%
NVDA2.02%
BIIB1.94%
AMZN1.69%
Other1.58%

Portfolio allocation by GICS sector

Sectors11
Technology43.12%
Healthcare21.27%
Industrials11.23%
Consumer Cyclical8.09%
Financial Services6.81%
Communication Services6.23%
Energy1.31%
Consumer Defensive1.16%
Basic Materials0.67%
Real Estate0.07%
Other0.03%

Behavioral investing profile

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Steady Compounder- primarily Technology, Healthcare, Industrials
Compare DNA across all funds
7-dimension, SEC 13F-derived research score
Solid(3.0 / 5.0)
Holdings P&L67
Conviction37
Concentration64
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Position Outcomes

Best and worst performing positions by estimated return

Cost basis estimates based on full filing history using quarter-end prices. Actual transaction prices are not disclosed in 13F filings.

Similar Funds

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Accumulation Streaks

Positions with 2+ consecutive quarters of increases - persistent directional conviction.

Security
8Q
COPCOPCONOCOPHILLIPS
Q3 2024 Q2 2026+8.7M shares+$872.8M
8Q
USFDUSFDUS FOODS HLDG CORP
Q3 2024 Q2 2026+3.9M shares+$400.8M
7Q
SCHWSCHWSCHWAB CHARLES CORP
Q4 2024 Q2 2026+24.1M shares+$2.3B
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Data sourced from SEC EDGAR 13F filings. Not financial advice. Full disclaimer

Verify source filings on SEC EDGAR

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