Latest PRIMECAP MANAGEMENT CO/CA/ Stock Portfolio

PRIMECAP MANAGEMENT CO/CA/ Performance:

2025 Q4: 6.93%YTD: 23.54%2024: 7.73%

Performance for 2025 Q4 is 6.93%, and YTD is 23.54%, and 2024 is 7.73%.

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

PRIMECAP MANAGEMENT CO/CA/ is a hedge fund based in Pasadena, CA. On 2026-02-11, the fund reported it's updated stock portfolio. In the 13F Holdings report, PRIMECAP MANAGEMENT CO/CA/ reported an equity portfolio of $132.1 Billions as of 31 Dec, 2025.

The top stock holdings of PRIMECAP MANAGEMENT CO/CA/ are LLY, MU, GOOG. The fund has invested 7.5% of it's portfolio in ELI LILLY & CO and 5.4% of portfolio in MICRON TECHNOLOGY INC.

The fund managers got completely rid off ELECTRONIC ARTS INC (EA), GE AEROSPACE (GE) and VICTORIAS SECRET AND CO (VSCO) stocks. They significantly reduced their stock positions in BOEING CO (BA), COMERICA INC (CMA) and EXACT SCIENCES CORP (EXAS). PRIMECAP MANAGEMENT CO/CA/ opened new stock positions in QNITY ELECTRONICS INC, BRUKER CORP (BRKR) and SYNAPTICS INC (SYNA). The fund showed a lot of confidence in some stocks as they added substantially to NETFLIX INC (NFLX), CAVA GROUP INC and SYNOPSYS INC (SNPS).

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

Our best estimate is that PRIMECAP MANAGEMENT CO/CA/ made a return of 6.93% in the last quarter. In trailing 12 months, it's portfolio return was 23.54%.

Performance
S&P 500

New Buys

Ticker	$ Bought
qnity electronics inc	79,443,300
bruker corp	30,861,800
viper energy inc	26,735,800
birkenstock holding plc	15,820,100
synaptics inc	15,670,000
septerna inc	15,225,300
hanover ins group inc	6,744,210
lenz therapeutics inc	5,955,200

New stocks bought by PRIMECAP MANAGEMENT CO/CA/

Additions

Ticker	% Inc.
netflix inc	1,950
cava group inc	1,378
synopsys inc	743
sharkninja inc	275
valvoline inc	214
bank new york mellon corp	214
willscot hldgs corp	210
booz allen hamilton hldg cor	135

Additions to existing portfolio by PRIMECAP MANAGEMENT CO/CA/

Reductions

Ticker	% Reduced
boeing co	-97.68
comerica inc	-95.23
exact sciences corp	-90.94
sanofi sa	-90.15
tapestry inc	-87.88
freeport-mcmoran inc	-86.34
onestream inc	-80.95
comcast corp new	-75.4

PRIMECAP MANAGEMENT CO/CA/ reduced stake in above stock

Sold off

Ticker	$ Sold
altice usa inc	-11,736,400
victorias secret and co	-50,355,600
electronic arts inc	-68,437,800
american homes 4 rent	-8,056,480
ge aerospace	-56,463,900
nurix therapeutics inc	-1,570,800
stratasys ltd	-1,849,120
mural oncology pub ltd co	-192,096

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

Sector Distribution

PRIMECAP MANAGEMENT CO/CA/ has about 27.9% of it's holdings in Technology sector.

Sector	%
Technology	27.9
Healthcare	21.5
Others	11.8
Industrials	11.2
Consumer Cyclical	8.8
Financial Services	8.7
Communication Services	6.4
Energy	1.4
Consumer Defensive	1.3

Market Cap. Distribution

PRIMECAP MANAGEMENT CO/CA/ has about 82.5% of it's portfolio invested in the large-cap and mega-cap stocks.

Category	%
LARGE-CAP	52.3
MEGA-CAP	30.2
UNALLOCATED	11.9
MID-CAP	4.8

Stocks belong to which Index?

About 78.9% of the stocks held by PRIMECAP MANAGEMENT CO/CA/ either belong to S&P 500 or RUSSELL 2000 index.

Index	%
S&P 500	76.9
Others	21.1
RUSSELL 2000	2

Top 5 Winners (%)		%
FOLD	amicus therapeutics inc	76.0 %
WVE	wave life sciences ltd	71.4 %
ALB	albemarle corp	69.3 %
MU	micron technology inc	64.8 %
IMNM	immunome inc	59.7 %

Top 5 Winners ($)		$
MU	micron technology inc	3215.0 M
LLY	eli lilly & co	3126.3 M
GOOG	alphabet inc	1080.1 M
	astrazeneca plc	583.9 M
BIIB	biogen inc	533.5 M

Top 5 Losers (%)		%
NFLX	netflix inc	-86.1 %
LESL	leslies inc	-70.0 %
FMC	fmc corp	-48.0 %
DD	dupont de nemours inc	-48.0 %
ELF	e l f beauty inc	-39.5 %

Top 5 Losers ($)		$
NFLX	netflix inc	-2331.5 M
BABA	alibaba group hldg ltd	-626.4 M
ORCL	oracle corp	-585.7 M
ACM	aecom	-308.3 M
MSFT	microsoft corp	-269.1 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 319 stocks in it's portfolio. About 33.4% of the portfolio is in top 10 stocks. NFLX 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: 11 Feb, 2026

Ticker	Namesorted ascending	% Portfolio	Shares Held	$ Value	Type	% Change
A	agilent technologies inc	0.14	1,337,440	181,985,000	reduced	-5.33

AAL	american airls group inc	0.57	49,002,600	751,209,000	reduced	-1.29

AAPL	apple inc	0.36	1,760,880	478,713,000	unchanged	0.00

ABT	abbott labs	0.07	762,820	95,573,700	reduced	-5.87

ACLS	axcelis technologies inc	0.04	664,942	53,421,400	reduced	-20.24

ACM	aecom	0.62	8,667,280	826,252,000	reduced	-2.38

ADBE	adobe inc	0.97	3,676,210	1,286,640,000	reduced	-4.7

ADI	analog devices inc	0.64	3,141,640	852,013,000	reduced	-4.22

ADSK	autodesk inc	0.14	615,100	182,076,000	reduced	-8.32

ALB	albemarle corp	0.30	2,805,070	396,749,000	reduced	-13.85

ALGT	allegiant travel co	0.00	32,750	2,792,590	unchanged	0.00

ALK	alaska air group inc	0.12	3,260,830	164,020,000	reduced	-5.74

ALKS	alkermes plc	0.05	2,564,300	71,749,100	reduced	-7.06

ALLO	allogene therapeutics inc	0.01	8,139,840	11,151,600	added	14.98

AMAT	applied matls inc	0.24	1,233,830	317,081,000	reduced	-22.12

AMBA	ambarella inc	0.00	19,500	1,381,380	reduced	-6.7

AMD	advanced micro devices inc	0.14	875,699	187,540,000	added	95.46

AME	ametek inc	0.13	823,154	169,002,000	added	0.49

AMGN	amgen inc	2.21	8,904,980	2,914,690,000	reduced	-8.27

AMH	american homes 4 rent	0.00	0.00	0.00	sold off	-100