AI Portfolio Summary
In 2025 Q4, PRIMECAP MANAGEMENT CO/CA/ maintained a portfolio of 337 distinct positions. They heavily accumulated shares in AMAZON COM INC, increasing their position by 14.4%. The fund also reduced its exposure to WELLS FARGO CO NEW by 44.0%.
Total Positions
337
Quarter
2025 Q4
Top Holding
LLY (7.5%)
Top 10 Concentration
33.4%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 337
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
LLY
ELI LILLY & CO
|
Healthcare | 7.54% | 6.31% |
#1
Prev: #1
|
5.5 | -1,529,556 | -14.2% |
P
S
|
9,265,782 | $9,957,750,600 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
MU
MICRON TECHNOLO...
|
Technology | 5.36% | 3.80% |
#2
Prev: #2
|
4.1 | -4,860,499 | -16.4% |
P
S
|
24,794,936 | $7,076,722,684 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
GOOGL
ALPHABET INC
|
Communication Services | 3.58% | 2.94% |
#3
1
Prev: #4
|
2.9 | -648,925 | -4.1% |
P
S
|
15,128,289 | $4,735,154,457 | 2015 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
MSFT
MICROSOFT CORP
|
Technology | 2.67% | 3.33% |
#4
1
Prev: #3
|
2.1 | -1,101,785 | -13.1% |
P
S
|
7,287,520 | $3,524,390,421 | 2000 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
KLAC
KLA CORP
|
Technology | 2.65% | 2.92% |
#5
Prev: #5
|
2.1 | -659,220 | -18.6% |
P
S
|
2,875,962 | $3,494,523,909 | 2004 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
AZN
ASTRAZENECA PLC
|
Healthcare | 2.57% | 2.34% |
#6
3
Prev: #9
|
1.5 | -2,942,710 | -7.4% |
P
S
|
36,915,261 | $3,393,619,943 | 2015 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
NVDA
NVIDIA CORPORAT...
|
Technology | 2.43% | 2.68% |
#7
Prev: #7
|
1.5 | -1,538,080 | -8.2% |
P
S
|
17,227,520 | $3,212,932,480 | 2012 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
BSX
BOSTON SCIENTIF...
|
Healthcare | 2.24% | 2.48% |
#8
Prev: #8
|
1.4 | -2,005,910 | -6.1% |
P
S
|
31,096,184 | $2,965,021,147 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
AMGN
AMGEN INC
|
Healthcare | 2.21% | 2.10% |
#9
2
Prev: #11
|
1.4 | -802,630 | -8.3% |
P
S
|
8,904,979 | $2,914,688,677 | 1999 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
TSLA
TESLA INC
|
Consumer Cyclical | 2.15% | 2.26% |
#10
Prev: #10
|
1.4 | -304,710 | -4.6% |
P
S
|
6,317,420 | $2,841,070,122 | 2011 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
AMZN
AMAZON COM INC
|
Consumer Cyclical | 2.14% | 1.80% |
#11
2
Prev: #13
|
2.9 | 1,542,950 | 14.4% |
P
S
|
12,256,188 | $2,828,973,315 | 2007 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
INTC
INTEL CORP
|
Technology | 2.13% | 2.04% |
#12
Prev: #12
|
1.4 | -3,273,242 | -4.1% |
P
S
|
76,132,268 | $2,809,280,689 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
BABA
ALIBABA GROUP H...
|
Consumer Cyclical | 2.11% | 2.74% |
#13
7
Prev: #6
|
1.3 | -1,010,730 | -5.1% |
P
S
|
18,977,436 | $2,781,712,570 | 2014 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
BIIB
BIOGEN INC
|
Healthcare | 1.97% | 1.60% |
#14
2
Prev: #16
|
1.3 | -196,700 | -1.3% |
P
S
|
14,757,997 | $2,597,259,895 | 2003 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
FDX
FEDEX CORP
|
Industrials | 1.86% | 1.71% |
#15
1
Prev: #14
|
1.2 | -929,579 | -9.8% |
P
S
|
8,512,671 | $2,458,970,146 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SCHW
SCHWAB CHARLES ...
|
Financial Services | 1.76% | 1.55% |
#16
2
Prev: #18
|
2.7 | 2,066,884 | 9.7% |
P
S
|
23,276,071 | $2,325,512,255 | 2011 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
LUV
SOUTHWEST AIRLS...
|
Industrials | 1.48% | 1.17% |
#17
8
Prev: #25
|
1.1 | -604,018 | -1.3% |
P
S
|
47,392,095 | $1,958,715,287 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
GOOG
ALPHABET INC
|
Communication Services | 1.37% | 1.14% |
#18
10
Prev: #28
|
1.0 | -364,306 | -5.9% |
P
S
|
5,762,640 | $1,808,316,431 | 2005 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
UAL
UNITED AIRLS HL...
|
Industrials | 1.35% | 1.33% |
#19
1
Prev: #20
|
1.0 | -2,024,470 | -11.2% |
P
S
|
15,978,490 | $1,786,714,749 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
TXN
TEXAS INSTRS IN...
|
Technology | 1.32% | 1.58% |
#20
3
Prev: #17
|
1.0 | -1,146,690 | -10.2% |
P
S
|
10,084,686 | $1,749,592,174 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ROST
ROSS STORES INC
|
Consumer Cyclical | 1.26% | 1.16% |
#21
6
Prev: #27
|
1.0 | -747,710 | -7.5% |
P
S
|
9,207,200 | $1,658,585,007 | 2011 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
FLEX
FLEX LTD
|
Technology | 1.22% | 1.31% |
#22
Prev: #22
|
1.0 | -2,908,187 | -9.8% |
P
S
|
26,702,091 | $1,613,340,338 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ONC
BEONE MEDICINES...
|
Healthcare | 1.15% | 1.33% |
#23
2
Prev: #21
|
1.0 | -99,880 | -2.0% |
P
S
|
4,980,581 | $1,513,150,314 | 2017 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
RJF
RAYMOND JAMES F...
|
Financial Services | 1.14% | 1.28% |
#24
1
Prev: #23
|
1.0 | -304,210 | -3.2% |
P
S
|
9,342,072 | $1,500,243,343 | 2018 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
TJX
TJX COS INC NEW
|
Consumer Cyclical | 1.13% | 1.17% |
#25
1
Prev: #26
|
1.0 | -785,232 | -7.5% |
P
S
|
9,739,320 | $1,496,056,946 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SONY
SONY GROUP CORP
|
Technology | 1.13% | 1.42% |
#26
7
Prev: #19
|
1.0 | -6,140,660 | -9.5% |
P
S
|
58,301,430 | $1,492,516,608 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
BIDU
BAIDU INC
|
Communication Services | 1.10% | 1.22% |
#27
3
Prev: #24
|
0.9 | -1,008,700 | -8.3% |
P
S
|
11,103,600 | $1,450,796,375 | 2019 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
V
VISA INC
|
Financial Services | 1.06% | 1.06% |
#28
1
Prev: #29
|
0.9 | -55,830 | -1.4% |
P
S
|
4,008,951 | $1,405,979,204 | 2008 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
BMY
BRISTOL-MYERS S...
|
Healthcare | 1.02% | 0.76% |
#29
12
Prev: #41
|
2.4 | 2,781,230 | 12.6% |
P
S
|
24,875,550 | $1,341,787,169 | 2001 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ADBE
ADOBE INC
|
Technology | 0.97% | 1.04% |
#30
Prev: #30
|
0.9 | -181,299 | -4.7% |
P
S
|
3,676,206 | $1,286,635,338 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
GSK
GSK PLC
|
Healthcare | 0.93% | 0.85% |
#31
6
Prev: #37
|
0.9 | -636,790 | -2.5% |
P
S
|
25,130,160 | $1,232,383,047 | 2005 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
DAL
DELTA AIR LINES...
|
Industrials | 0.92% | 0.80% |
#32
6
Prev: #38
|
0.9 | -699,860 | -3.8% |
P
S
|
17,594,127 | $1,221,032,414 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
TMO
THERMO FISHER S...
|
Healthcare | 0.90% | 0.86% |
#33
3
Prev: #36
|
0.9 | -246,030 | -10.7% |
P
S
|
2,057,292 | $1,192,097,851 | 2013 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ORCL
ORACLE CORP
|
Technology | 0.89% | 1.62% |
#34
19
Prev: #15
|
0.9 | -1,504,586 | -20.0% |
P
S
|
6,031,740 | $1,175,646,445 | 2005 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
JPM
JPMORGAN CHASE ...
|
Financial Services | 0.88% | 0.93% |
#35
3
Prev: #32
|
0.9 | -231,180 | -6.0% |
P
S
|
3,606,887 | $1,162,211,129 | 2002 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
COP
CONOCOPHILLIPS
|
Energy | 0.82% | 0.75% |
#36
7
Prev: #43
|
2.3 | 1,226,455 | 11.8% |
P
S
|
11,577,465 | $1,083,766,499 | 2002 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ELAN
ELANCO ANIMAL H...
|
Healthcare | 0.79% | 0.77% |
#37
3
Prev: #40
|
0.8 | -3,744,068 | -7.5% |
P
S
|
46,214,088 | $1,045,824,811 | 2018 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
NVS
NOVARTIS AG
|
Healthcare | 0.79% | 0.92% |
#38
5
Prev: #33
|
0.8 | -1,762,580 | -18.9% |
P
S
|
7,579,274 | $1,044,954,508 | 2012 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
NTAP
NETAPP INC
|
Technology | 0.74% | 0.87% |
#39
4
Prev: #35
|
0.8 | -562,000 | -5.8% |
P
S
|
9,068,055 | $971,098,009 | 2011 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
NTRS
NORTHERN TR COR...
|
Financial Services | 0.68% | 0.78% |
#40
1
Prev: #39
|
0.8 | -933,650 | -12.4% |
P
S
|
6,607,717 | $902,548,066 | 2016 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
BMRN
BIOMARIN PHARMA...
|
Healthcare | 0.65% | 0.63% |
#41
4
Prev: #45
|
0.8 | -679,973 | -4.5% |
P
S
|
14,549,314 | $864,665,732 | 2001 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ADI
ANALOG DEVICES ...
|
Technology | 0.64% | 0.62% |
#42
4
Prev: #46
|
0.8 | -138,480 | -4.2% |
P
S
|
3,141,640 | $852,012,768 | 2011 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ACM
AECOM
|
Industrials | 0.63% | 0.89% |
#43
9
Prev: #34
|
0.8 | -211,080 | -2.4% |
P
S
|
8,667,283 | $826,252,089 | 2010 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
WFC
WELLS FARGO CO ...
|
Financial Services | 0.59% | 0.96% |
#44
13
Prev: #31
|
0.2 | -6,566,583 | -44.0% |
P
S
|
8,360,272 | $779,177,350 | 1999 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
JBL
JABIL INC
|
Technology | 0.58% | 0.55% |
#45
5
Prev: #50
|
0.7 | 12,600 | 0.4% |
P
S
|
3,343,670 | $762,423,633 | 2008 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
AAL
AMERICAN AIRLS ...
|
Industrials | 0.57% | 0.43% |
#46
8
Prev: #54
|
0.7 | -639,385 | -1.3% |
P
S
|
49,002,554 | $751,209,155 | 2013 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
DIS
DISNEY WALT CO
|
Communication Services | 0.54% | 0.55% |
#47
4
Prev: #51
|
0.7 | -10,879 | -0.2% |
P
S
|
6,236,627 | $709,541,056 | 2000 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
INTU
INTUIT
|
Technology | 0.53% | 0.59% |
#48
Prev: #48
|
0.7 | -65,115 | -5.8% |
P
S
|
1,056,337 | $699,738,756 | 2003 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
RCL
ROYAL CARIBBEAN...
|
Consumer Cyclical | 0.51% | 0.68% |
#49
5
Prev: #44
|
0.7 | -346,400 | -12.6% |
P
S
|
2,410,521 | $672,342,517 | 2000 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
NXT
NEXTPOWER INC
|
Technology | 0.46% | 0.42% |
#50
5
Prev: #55
|
0.7 | -508,854 | -6.8% |
P
S
|
6,951,597 | $605,553,615 | 2023 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) |
Showing 1-50 of 337 holdings