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Latest PRIMECAP MANAGEMENT CO/CA/ Stock Portfolio

$127Billion | No. of Holdings #320

PRIMECAP MANAGEMENT CO/CA/ Performance

2026 Q1-2.92%
YTD-2.92%
2025+25.73%

About PRIMECAP MANAGEMENT CO/CA/ and 13F Hedge Fund Stock Holdings

PRIMECAP MANAGEMENT CO/CA/ is a hedge fund based in Pasadena, CA. On 2026-05-11, the fund reported it's updated stock portfolio. In the 13F Holdings report, PRIMECAP MANAGEMENT CO/CA/ reported an equity portfolio of $127 Billions as of 31 Mar, 2026. <br><br> The top stock holdings of PRIMECAP MANAGEMENT CO/CA/ are LLY, MU, GOOG. The fund has invested 6.7% of it's portfolio in ELI LILLY & CO and 5.8% of portfolio in MICRON TECHNOLOGY INC. <br><br> The fund managers got completely rid off ASTRAZENECA PLC (AZN), CYBERARK SOFTWARE LTD (CYBR) and COMERICA INC (CMA) stocks. They significantly reduced their stock positions in IQVIA HLDGS INC (IQV), FIDELITY NATL INFORMATION SV (FIS) and NEW FORTRESS ENERGY INC (NFE). PRIMECAP MANAGEMENT CO/CA/ opened new stock positions in ASTRAZENECA PLC, WASTE MGMT INC DEL (WM) and L3HARRIS TECHNOLOGIES INC (LHX). The fund showed a lot of confidence in some stocks as they added substantially to BOEING CO (BA), GITLAB INC (GTLB) and COSTAR GROUP INC (CSGP).
PRIMECAP MANAGEMENT CO/CA/ Equity Portfolio Value
Last Reported on: 11 May, 2026
$127Billion
  as of May 11, 2026

PRIMECAP MANAGEMENT CO/CA/ Annual Return Estimates Vs S&P 500

Our best estimate is that PRIMECAP MANAGEMENT CO/CA/ made a return of -2.92% in the last quarter. In trailing 12 months, it's portfolio return was 25.66%.
  • Performance
  • S&P 500

New Buys

Ticker$ Bought
astrazeneca plc3,592,110,000
waste mgmt inc del63,789,700
l3harris technologies inc49,356,400
palvella therapeutics inc ne24,310,500
fifth third bancorp9,118,240
xcel energy inc5,322,480
itt inc1,714,770
warner music group corp441,842
New stocks bought by PRIMECAP MANAGEMENT CO/CA/

Additions

Ticker% Inc.
boeing co8,646
gitlab inc529
costar group inc432
hanover ins group inc377
toast inc205
dicks sporting goods inc132
synaptics inc111
septerna inc92.06
Additions to existing portfolio by PRIMECAP MANAGEMENT CO/CA/

Reductions

Ticker% Reduced
iqvia hldgs inc-85.57
fidelity natl information sv-74.31
new fortress energy inc-73.79
qualcomm inc-69.82
marqeta inc-69.34
docusign inc-65.95
ibotta inc-52.15
wex inc-45.58
PRIMECAP MANAGEMENT CO/CA/ reduced stake in above stock

Sold off

Ticker$ Sold
astrazeneca plc-3,393,620,000
sun ctry airls hldgs inc-2,056,550
comerica inc-10,880,200
solstice advanced matls inc-5,817,460
leslies inc-108,167
exact sciences corp-3,483,510
cyberark software ltd-13,604,800
circle internet group inc-206,180
PRIMECAP MANAGEMENT CO/CA/ got rid off the above stocks

Sector Distribution

PRIMECAP MANAGEMENT CO/CA/ has about 28.7% of it's holdings in Technology sector.

  • Technology
  • Healthcare
  • Others
  • Industrials
  • Consumer Cyclical
  • Financial Services
  • Communication Services
  • Energy
  • Consumer Defensive
  • Basic Materials
Sector%
Technology28.7
Healthcare20.2
Others11.9
Industrials11.6
Consumer Cyclical8.5
Financial Services8.4
Communication Services6.1
Energy2
Consumer Defensive1.3
Basic Materials1.1

Market Cap. Distribution

PRIMECAP MANAGEMENT CO/CA/ has about 83.3% of it's portfolio invested in the large-cap and mega-cap stocks.

  • LARGE-CAP
  • MEGA-CAP
  • UNALLOCATED
  • MID-CAP
Category%
LARGE-CAP45.4
MEGA-CAP37.9
UNALLOCATED12.1
MID-CAP4.3

Stocks belong to which Index?

About 78.5% of the stocks held by PRIMECAP MANAGEMENT CO/CA/ either belong to S&P 500 or RUSSELL 2000 index.

  • S&P 500
  • Others
  • RUSSELL 2000
Index%
S&P 50076.6
Others21.4
RUSSELL 20001.9
Top 5 Winners (%)%
TROX
tronox holdings plc
134.3 %
DOW
dow hldgs inc
77.5 %
ALLO
allogene therapeutics inc
76.1 %
ZNTL
zentalis pharmaceuticals inc
73.3 %
NKTR
nektar therapeutics
70.0 %
Top 5 Winners ($)$
MU
micron technology inc
1223.4 M
KLAC
kla corp
683.7 M
FDX
fedex corp
566.0 M
INTC
intel corp
549.1 M
COP
conocophillips
444.5 M
Top 5 Losers (%)%
WVE
wave life sciences ltd
-55.4 %
flutter entmt plc
-52.6 %
HCAT
health catalyst inc
-46.9 %
SNAP
snap inc
-43.0 %
U
unity software inc
-42.1 %
Top 5 Losers ($)$
LLY
eli lilly & co
-1432.1 M
BSX
boston scientific corp
-1037.1 M
MSFT
microsoft corp
-825.5 M
TSLA
tesla inc
-485.1 M
ADBE
adobe inc
-449.4 M

PRIMECAP MANAGEMENT CO/CA/ Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of PRIMECAP MANAGEMENT CO/CA/

PRIMECAP MANAGEMENT CO/CA/ has 320 stocks in it's portfolio. About 33.5% of the portfolio is in top 10 stocks. LLY proved to be the most loss making stock for the portfolio. MU was the most profitable stock for PRIMECAP MANAGEMENT CO/CA/ last quarter.

$127.01BTotal Value
328Positions
11 May, 2026Last Reported
Current holdings of Current Stock Holdings of PRIMECAP MANAGEMENT CO/CA/, last reported on 11 May, 2026. Select a row with a linked ticker to view its historical trend.
ExpandHoldingsorted ascending% PortfolioShares Held$ Value% Change
ALC
Alcon Ag

Alcon Ag

ALC
PRIMECAP MANAGEMENT CO/CA/'s holding in Alcon Ag over time
0.08%1,340,870
$101.03M
0.08%
unchanged 0 percentunchanged