13F filer

Primecap Management

As of Jun 30, 2026 Filed Aug 14, 2026 CIK 763212 SEC filings ↗
13F Value
$169.11B
Positions
324
Top Position
MU13.1%
Top 5
32.6%

Latest filing changes

vs Mar 31, 2026
1 KLAC KLA +742.5%+$5.46B
2 BSX Boston Scientific +55.3%+$767.9M
3 AAL American Airlines Group +44.4%+$392.9M
4 ILMN Illumina +70.0%+$254.5M
5 MRSH Marsh & McLennan +199.0%+$237.9M
Holdings324
# Trend (4Q)
1 MU 13.1% $22.18B -12.1% 19.22M 5.8% Common Stock
2 LLY 6.5% $11.00B -0.5% 9.17M 6.7% Common Stock
3 INTC 6.2% $10.51B -0.7% 75.25M 2.6% Common Stock
4 KLAC 3.7% $6.20B +742.5% 20.54M 2.8% Common Stock
5 GOOGL
Filing details
  • 02079K305 Jun 30, 2026 14,859,769 reported quantity $5,310,435,649 reported value
3.1% $5.31B -0.9% 14.86M 3.4% Common Stock
6 FLEX 2.2% $3.79B -8.0% 23.36M 1.3% Common Stock
7 AZN
Filing details
  • G0593M107 Jun 30, 2026 18,095,178 reported quantity $3,431,207,652 reported value
2.0% $3.43B -0.7% 18.10M 2.8% Common Stock
8 NVDA 2.0% $3.42B -0.6% 17.08M 2.4% Common Stock
9 BIIB 1.9% $3.27B +2.7% 15.15M 2.1% Common Stock
10 AMZN 1.7% $2.85B -1.2% 11.96M 2.0% Common Stock
11 MSFT 1.6% $2.66B -1.7% 7.14M 2.1% Common Stock
12 TSLA 1.5% $2.57B -0.4% 6.10M 1.8% Common Stock
13 FDX 1.5% $2.55B -1.8% 8.16M 2.3% Common Stock
14 TXN 1.5% $2.54B -11.8% 8.51M 1.5% Common Stock
15 LUV 1.5% $2.51B +3.7% 48.80M 1.4% Common Stock
16 AMGN 1.4% $2.45B -23.9% 6.76M 2.5% Common Stock
17 SCHW 1.4% $2.32B +7.2% 25.12M 1.7% Common Stock
18 UAL 1.3% $2.24B +4.5% 16.46M 1.1% Common Stock
19 BSX 1.3% $2.16B +55.3% 50.52M 1.6% Common Stock
20 ROST 1.1% $1.94B -0.7% 9.10M 1.6% Common Stock
Change compares with the prior filing. Prior % is the share of the portfolio in that filing. Trend shows the quantity held in each of the last four filings: green rose, red fell, grey unchanged.
Exited in Latest Filing6
# Holding Prior % Prior Value Change Prior Quantity Trend (4Q) Type
Compared with the immediately prior published filing (Mar 31, 2026). Prior values are shown for context and are not included in current totals.