Latest PRIMECAP MANAGEMENT CO/CA/ Stock Portfolio

PRIMECAP MANAGEMENT CO/CA/ Performance:

2025 Q3: 10.17%YTD: 15.54%2024: 7.72%

Performance for 2025 Q3 is 10.17%, and YTD is 15.54%, and 2024 is 7.72%.

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

PRIMECAP MANAGEMENT CO/CA/ is a hedge fund based in PASADENA, CA. On 29-Mar-2023, the fund reported that it had an AUM (Regulated Assets under Management) of $117.2 Billions. In it's latest 13F Holdings report, PRIMECAP MANAGEMENT CO/CA/ reported an equity portfolio of $130.6 Billions as of 30 Sep, 2025.

The top stock holdings of PRIMECAP MANAGEMENT CO/CA/ are LLY, MU, MSFT. The fund has invested 6.3% of it's portfolio in ELI LILLY & CO and 3.8% of portfolio in MICRON TECHNOLOGY INC.

The fund managers got completely rid off HESS CORP (HES), CHARTER COMMUNICATIONS INC N (CHTR) and HUBSPOT INC (HUBS) stocks. They significantly reduced their stock positions in MEDTRONIC PLC (MDT), CHART INDS INC (GTLS) and EXXON MOBIL CORP (XOM). PRIMECAP MANAGEMENT CO/CA/ opened new stock positions in CHEVRON CORP NEW (CVX), HONEYWELL INTL INC (HON) and TOAST INC (TOST). The fund showed a lot of confidence in some stocks as they added substantially to FAIR ISAAC CORP (FICO), IDEX CORP (IEX) and CAVA GROUP INC.

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

Our best estimate is that PRIMECAP MANAGEMENT CO/CA/ made a return of 10.17% in the last quarter. In trailing 12 months, it's portfolio return was 9.83%.

Performance
S&P 500

New Buys

Ticker	$ Bought
chevron corp new	988,083,000
honeywell intl inc	89,967,700
toast inc	2,939,060
taylor morrison home corp	2,930,840
wolfspeed inc	933,334
leslies inc	360,558
five below inc	201,110

New stocks bought by PRIMECAP MANAGEMENT CO/CA/

Additions

Ticker	% Inc.
fair isaac corp	871
idex corp	250
cava group inc	224
gartner inc	140
the trade desk inc	120
advanced micro devices inc	103
ivanhoe electric inc	79.59
sun ctry airls hldgs inc	74.5

Additions to existing portfolio by PRIMECAP MANAGEMENT CO/CA/

Reductions

Ticker	% Reduced
medtronic plc	-99.15
chart inds inc	-91.26
exxon mobil corp	-82.85
duolingo inc	-75.34
new fortress energy inc	-74.06
galapagos nv	-64.76
tradeweb mkts inc	-63.61
credo technology group holdi	-58.45

PRIMECAP MANAGEMENT CO/CA/ reduced stake in above stock

Sold off

Ticker	$ Sold
hess corp	-1,060,140,000
wolfspeed inc	-2,422,760
leslies inc	-550,543
sphere entertainment co	-17,535,000
sandisk corp	-12,850,800
charter communications inc n	-58,660,100
orasure technologies inc	-228,300
guardant health inc	-3,434,120

PRIMECAP MANAGEMENT CO/CA/ got rid off the above stocks

Sector Distribution

PRIMECAP MANAGEMENT CO/CA/ has about 28.9% of it's holdings in Technology sector.

Sector	%
Technology	28.9
Healthcare	19.6
Others	12.6
Industrials	11
Financial Services	9.2
Consumer Cyclical	8.7
Communication Services	5.8
Energy	1.9
Consumer Defensive	1.4

Market Cap. Distribution

PRIMECAP MANAGEMENT CO/CA/ has about 82% of it's portfolio invested in the large-cap and mega-cap stocks.

Category	%
LARGE-CAP	51.8
MEGA-CAP	30.2
UNALLOCATED	12.7
MID-CAP	4.6

Stocks belong to which Index?

About 77.7% of the stocks held by PRIMECAP MANAGEMENT CO/CA/ either belong to S&P 500 or RUSSELL 2000 index.

Index	%
S&P 500	75.9
Others	22.3
RUSSELL 2000	1.8

Top 5 Winners (%)		%
NKTR	nektar therapeutics	118.1 %
FGEN	fibrogen inc	108.6 %
GRWG	growgeneration corp	100.0 %
ZIMV	zimvie inc	98.3 %
WDC	western digital corp	83.3 %

Top 5 Winners ($)		$
MU	micron technology inc	1346.8 M
BABA	alibaba group hldg ltd	1331.0 M
GOOG	alphabet inc	1087.5 M
INTC	intel corp	890.3 M
TSLA	tesla inc	860.2 M

Top 5 Losers (%)		%
LUNG	pulmonx corp	-36.7 %
BRBR	bellring brands inc	-35.6 %
	onestream inc	-34.4 %
KMX	carmax inc	-32.6 %
EAT	brinker intl inc	-29.8 %

Top 5 Losers ($)		$
BSX	boston scientific corp	-331.4 M
TXN	texas instrs inc	-281.5 M
LLY	eli lilly & co	-189.7 M
ADBE	adobe inc	-136.8 M
INTU	intuit	-127.2 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 327 stocks in it's portfolio. About 31.8% of the portfolio is in top 10 stocks. BSX proved to be the most loss making stock for the portfolio. MU was the most profitable stock for PRIMECAP MANAGEMENT CO/CA/ last quarter.

Last Reported on: 12 Nov, 2025

Ticker	Namesorted ascending	% Portfolio	Shares Held	$ Value	Type	% Change
A	agilent technologies inc	0.14	1,412,710	181,321,000	reduced	-7.74

AAL	american airls group inc	0.43	49,641,900	557,975,000	reduced	-7.16

AAPL	apple inc	0.34	1,760,880	448,373,000	reduced	-15.73

ABT	abbott labs	0.08	810,390	108,544,000	reduced	-7.44

ACLS	axcelis technologies inc	0.06	833,676	81,400,100	reduced	-2.18

ACM	aecom	0.89	8,878,360	1,158,360,000	reduced	-7.16

ADBE	adobe inc	1.04	3,857,500	1,360,740,000	reduced	-7.22

ADI	analog devices inc	0.62	3,280,120	805,926,000	reduced	-4.82

ADSK	autodesk inc	0.16	670,900	213,125,000	reduced	-1.48

ALB	albemarle corp	0.20	3,255,910	263,989,000	reduced	-1.51

ALGT	allegiant travel co	0.00	32,750	1,990,220	reduced	-18.23

ALK	alaska air group inc	0.13	3,459,410	172,209,000	reduced	-4.82

ALKS	alkermes plc	0.06	2,759,080	82,772,400	reduced	-4.94

ALLO	allogene therapeutics inc	0.01	7,079,310	8,778,340	added	23.78

AMAT	applied matls inc	0.25	1,584,230	324,354,000	reduced	-9.47

AMBA	ambarella inc	0.00	20,900	1,724,670	reduced	-4.57

AMD	advanced micro devices inc	0.06	448,010	72,483,500	added	103

AME	ametek inc	0.12	819,154	154,001,000	added	5.19

AMGN	amgen inc	2.10	9,707,610	2,739,490,000	reduced	-8.69

AMH	american homes 4 rent	0.01	242,300	8,056,480	reduced	-12.77