PRIMECAP MANAGEMENT CO/CA/

CIK 763212 · View on SEC EDGAR ↗

Portfolio value
$169.1B
#48 of 9,443 by 13F value · top 0.5%
Positions
324
As of
June 30, 2026

Portfolio value QoQ: +33.1% 13F does not disclose cash

Top 10 holdings weight
42.55%
Top 25 holdings weight
61.57%
Positions above 1%
22
Effective number of positions
29.7

Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)

Turnover Q2 2026: 4.83% Est. buys $10,346,259,850 · sells $7,157,018,266

Median holding: 7.0 quarters Tracked Q4 2024–Q2 2026 · 83.1% still held

New positions
13
Increased
84
Decreased
177
Closed
9
On this page

Performance vs S&P 500

Tracked Q4 2024–Q2 2026
+65.7%
S&P 500 total return (same window)
+28.1%
Excess return
+37.6%

Annualized: +40.2% · S&P 500: +18.0%

Approximates a buy-and-hold portfolio built from quarterly SEC 13F snapshots. Excludes cash, short positions, options/derivatives, and non-13(f) securities — reflects the disclosed long-equity book only, not total fund AUM. SEC filing lag is up to 45 days; this is not a real-time-copyable timing.

Priceable coverage: 99.3% · Options excluded: 0.0%

Sector breakdown

Technology
37.0%
Healthcare
21.1%
Industrials
13.8%
Retail
6.2%
Communication Services
6.1%
Financial Services
5.1%
Consumer Discretionary
2.7%
Logistics & Transportation
1.7%
Financials
1.7%
Energy
1.3%
Consumer products
0.9%
Communications
0.7%
Materials
0.7%
Consumer Staples
0.1%
Real Estate
0.1%
Telecommunication
0.0%
Utilities
0.0%
Other/Unmapped
0.8%

Full portfolio 324 positions

Type Streak 8Q trend
MU Micron Technology, Inc. - Common Stock $22,182,263,342 13.12% 19,217,236 $14,792,282,263 Down ×6
LLY Eli Lilly and Company Common Stock $11,002,256,246 6.51% 9,172,904 $2,518,820,196 Down ×6
INTC Intel Corporation - Common Stock $10,507,291,264 6.21% 75,250,958 $7,163,915,617 Down ×4
KLAC KLA Corporation - Common Stock $6,196,136,809 3.66% 20,536,730 $2,606,920,989 Up ×1
GOOGL Alphabet Inc. - Class A Common Stock $5,310,435,649 3.14% 14,859,769 $1,000,641,939 Down ×4
FLEX Flex Ltd. - Ordinary Shares $3,785,772,872 2.24% 23,358,875 $2,124,172,364 Down ×6
AZN AstraZeneca PLC - American Depositary Shares $3,431,207,652 2.03% 18,095,178 $-160,899,838 Down ×1
NVDA NVIDIA Corporation - Common Stock $3,417,373,127 2.02% 17,079,180 $419,745,815 Down ×6
BIIB Biogen Inc. - Common Stock $3,274,304,389 1.94% 15,154,606 $568,792,295 Up ×1
AMZN Amazon.com, Inc. - Common Stock $2,851,067,887 1.69% 11,962,188 $329,535,080 Down ×2
MSFT Microsoft Corporation - Common Stock $2,663,687,328 1.58% 7,140,870 $-25,434,847 Down ×4
TSLA Tesla, Inc. - Common Stock $2,566,934,418 1.52% 6,103,030 $289,772,355 Down ×6
FDX FedEx Corporation Common Stock $2,554,138,472 1.51% 8,156,799 $-403,227,987 Down ×6
TXN Texas Instruments Incorporated - Common Stock $2,538,062,771 1.50% 8,514,989 $663,686,499 Down ×6
LUV Southwest Airlines Company Common Stock $2,509,179,019 1.48% 48,797,725 $740,778,089 Up ×1
AMGN Amgen Inc. - Common Stock $2,446,831,080 1.45% 6,756,962 $-675,531,209 Down ×6
SCHW Charles Schwab Corporation (The) Common Stock $2,317,904,983 1.37% 25,120,895 $114,833,811 Up ×6
UAL United Airlines Holdings, Inc. - Common Stock $2,238,617,065 1.32% 16,461,630 $788,458,403 Up ×1
BSX Boston Scientific Corporation Common Stock $2,156,232,608 1.28% 50,520,914 $114,989,285 Up ×2
ROST Ross Stores, Inc. - Common Stock $1,937,994,996 1.15% 9,104,980 $-48,508,602 Down ×4
GOOG Alphabet Inc. - Class C Capital Stock $1,907,649,872 1.13% 5,399,060 $266,549,628 Down ×6
BABA Alibaba Group Holding Limited American Depositary Shares each representing eight Ordinary share $1,786,313,150 1.06% 18,611,306 $-562,588,615 Down ×4
DAL Delta Air Lines, Inc. Common Stock $1,641,032,503 0.97% 17,521,167 $474,403,769 Down ×6
V Visa Inc. $1,464,476,578 0.87% 4,268,491 $237,321,427 Up ×2
BMY Bristol-Myers Squibb Company Common Stock $1,436,115,120 0.85% 24,923,900 $-79,234,231 Down ×1
TJX TJX Companies, Inc. (The) Common Stock $1,435,617,030 0.85% 9,476,020 $-95,733,494 Down ×6
ONC BeOne Medicines Ltd. - American Depositary Shares $1,427,110,097 0.84% 5,007,931 $-50,369,405 Up ×1
RJF Raymond James Financial, Inc. Common Stock $1,405,145,182 0.83% 9,242,552 $51,768,147 Down ×1
NTAP NetApp, Inc. - Common Stock $1,395,422,945 0.83% 9,016,690 $468,030,128 Down ×6
GSK GSK plc American Depositary Shares (Each representing two Ordinary Shares) $1,320,044,006 0.78% 25,182,068 $-70,994,447 Down ×1
AAL American Airlines Group, Inc. - Common Stock $1,278,144,480 0.76% 70,732,954 $751,992,373 Up ×1
BIDU Baidu, Inc. - American Depositary Shares, each representing 8 ordinary share $1,258,344,329 0.74% 11,010,100 $26,395,673 Down ×4
ADI Analog Devices, Inc. - Common Stock $1,242,478,827 0.73% 3,128,329 $244,763,155 Down ×6
JBL Jabil Inc. Common Stock $1,220,861,418 0.72% 3,167,120 $349,284,231 Down ×2
COP ConocoPhillips Common Stock $1,204,726,426 0.71% 11,588,365 $-323,736,554 Up ×6
SONY Sony Group Corporation American Depositary Shares $1,195,640,794 0.71% 59,603,230 $-15,947,389 Up ×2
ELAN Elanco Animal Health Incorporated Common Stock $1,118,401,745 0.66% 45,445,012 $21,427,668 Down ×4
JPM JP Morgan Chase & Co. Common Stock $1,107,235,296 0.65% 3,382,627 $106,053,794 Down ×6
ADBE Adobe Inc. - Common Stock $1,071,668,037 0.63% 5,227,139 $-78,306,010 Up ×2
NTRS Northern Trust Corporation - Common Stock $1,060,552,989 0.63% 6,100,742 $146,503,895 Down ×4
GLW Corning Incorporated Common Stock $1,055,404,065 0.62% 4,131,872 $493,199,116 Down ×6
NVS Novartis AG Common Stock $1,033,117,672 0.61% 6,592,124 $-122,795,655 Down ×4
TMO Thermo Fisher Scientific Inc Common Stock $993,831,390 0.59% 1,982,271 $19,357,926 Down ×4
CAT Caterpillar, Inc. Common Stock $928,273,330 0.55% 871,700 $310,312,012 Down ×6
MRVL Marvell Technology, Inc. - Common Stock $821,579,131 0.49% 2,757,995 $526,934,600 Down ×1
BMRN BioMarin Pharmaceutical Inc. - Common Stock $811,962,329 0.48% 14,190,183 $10,142,985 Down ×6
NXT Nextpower Inc. - Class A Common Stock $796,899,701 0.47% 6,688,767 $-18,120,404 Down ×4
ORCL Oracle Corporation Common Stock $789,352,009 0.47% 5,386,230 $-45,369,257 Down ×4
HPE Hewlett Packard Enterprise Company Common Stock $773,224,873 0.46% 17,140,875 $363,000,475 Down ×6
AMAT Applied Materials, Inc. - Common Stock $754,035,498 0.45% 1,042,926 $352,730,974 Down ×6
IEX IDEX Corporation Common Stock $748,951,342 0.44% 3,300,072 $122,879,632 Down ×1
ASML ASML Holding N.V. - New York Registry Shares $699,439,357 0.41% 351,576 $233,085,983 Down ×6
DIS Walt Disney Company (The) Common Stock $675,767,113 0.40% 7,020,957 $74,825,573 Up ×1
RCL Royal Caribbean Cruises Ltd. Common Stock $669,804,451 0.40% 2,109,421 $23,978,730 Down ×6
XMTR Xometry, Inc. - Class A Common Stock $640,512,221 0.38% 6,636,057 $375,236,122 Up ×2
ILMN Illumina, Inc. - Common Stock $617,980,735 0.37% 3,514,649 $363,165,459 Up ×3
ACM AECOM Common Stock $613,335,602 0.36% 8,787,043 $-120,109,131 Up ×1
Unknown issuer (CUSIP: 314352105) $611,347,660 0.36% 4,048,660 Up ×1
AMD Advanced Micro Devices, Inc. - Common Stock $608,636,835 0.36% 1,047,730 $395,132,980 Down ×1
J Jacobs Solutions Inc. Common Stock $575,290,674 0.34% 4,565,799 $560,508 Up ×1
CSCO Cisco Systems, Inc. - Common Stock $568,325,512 0.34% 4,838,460 $192,855,087 Down ×6
ENTG Entegris, Inc. - Common Stock $562,140,559 0.33% 3,125,433 $193,674,700 Down ×3
WFC Wells Fargo & Company Common Stock $554,681,499 0.33% 6,712,022 $-60,154,651 Down ×6
TDG Transdigm Group Incorporated Common Stock $546,425,452 0.32% 410,217 $71,000,357
HPQ HP Inc. Common Stock $545,984,030 0.32% 24,885,325 $133,552,530 Up ×2
AAPL Apple Inc. - Common Stock $509,528,237 0.30% 1,760,880 $62,634,502
ERIC Ericsson - American Depositary Shares each representing 1 underlying Class B share $463,991,787 0.27% 41,613,613 $41,321,561 Up ×3
LIN Linde plc - Ordinary Shares $460,258,265 0.27% 886,920 $19,765,590 Down ×2
DLTR Dollar Tree, Inc. - Common Stock $455,845,433 0.27% 3,768,875 $47,496,330 Up ×1
FICO Fair Isaac Corporation Common Stock $433,508,002 0.26% 362,835 $124,938,768 Up ×4
GKOS Glaukos Corporation Common Stock $424,968,931 0.25% 3,040,705 $62,087,119 Down ×2
PYPL PayPal Holdings, Inc. - Common Stock $422,091,841 0.25% 9,775,170 $-31,406,303 Down ×1
CME CME Group Inc. - Class A Common Stock $420,602,316 0.25% 1,904,643 $-116,556,048 Up ×1
MAT Mattel, Inc. - Common Stock $409,539,602 0.24% 29,505,735 $-21,971,250 Down ×6
USFD US Foods Holding Corp. Common Stock $406,996,923 0.24% 3,980,409 $43,107,678 Up ×6
SNPS Synopsys, Inc. - Common Stock $399,388,777 0.24% 895,350 $73,323,625 Up ×5
META Meta Platforms, Inc. - Class A Common Stock $398,972,675 0.24% 708,290 $-43,993,257 Down ×4
MKTX MarketAxess Holdings, Inc. - Common Stock $397,771,671 0.24% 3,504,905 $-154,437,012 Up ×4
CW Curtiss-Wright Corporation Common Stock $390,106,214 0.23% 514,815 $24,453,753 Down ×6
BAH Booz Allen Hamilton Holding Corporation Common Stock $388,145,061 0.23% 6,397,644 $11,275,923 Up ×5
CVX Chevron Corporation Common Stock $378,837,521 0.22% 2,285,458 $-95,289,760 Down ×3
BK The Bank of New York Mellon Corporation Common Stock $376,497,920 0.22% 2,603,540 $75,813,577 Up ×3
DHR Danaher Corporation Common Stock $359,830,054 0.21% 1,889,070 $64,628,542 Up ×6
ALB Albemarle Corporation Common Stock $358,100,776 0.21% 2,652,009 $-120,294,431 Down ×6
MRSH Marsh Common Stock $357,511,318 0.21% 2,145,025 $233,060,943 Up ×2
RYTM Rhythm Pharmaceuticals, Inc. - Common Stock $351,837,748 0.21% 3,168,853 $54,616,991 Down ×6
BNTX BioNTech SE - American Depositary Shares $350,987,486 0.21% 3,772,031 $13,802,454 Down ×6
PANW Palo Alto Networks, Inc. - Common Stock $347,802,888 0.21% 1,019,890 $182,005,395 Down ×1
LIVN LivaNova PLC - Ordinary Shares $342,765,723 0.20% 4,168,377 $75,365,496 Down ×4
NFLX Netflix, Inc. - Common Stock $342,039,201 0.20% 4,790,465 $-82,154,409 Up ×3
MA Mastercard Incorporated Common Stock $336,249,298 0.20% 654,691 $45,361,736 Up ×2
WDC Western Digital Corporation - Common Stock $329,860,556 0.20% 516,440 $173,731,023 Down ×6
ZBH Zimmer Biomet Holdings, Inc. Common Stock $328,577,983 0.19% 3,816,680 $-24,706,520 Down ×4
C Citigroup, Inc. Common Stock $326,610,656 0.19% 2,333,600 $55,504,051 Down ×6
NSC Norfolk Southern Corporation Common Stock $324,943,157 0.19% 1,032,910 $28,354,487 Down ×1
SYY Sysco Corporation Common Stock $313,502,646 0.19% 3,750,929 $49,450,540 Up ×2
EW Edwards Lifesciences Corporation Common Stock $308,314,004 0.18% 3,408,291 $34,216,901 Down ×1
PFGC Performance Food Group Company Common Stock $305,063,507 0.18% 2,728,898 $73,113,530 Up ×2
INTU Intuit Inc. - Common Stock $289,727,487 0.17% 1,110,067 $-173,488,558 Up ×2
MDB MongoDB, Inc. - Class A Common Stock $284,172,744 0.17% 846,004 $77,897,967 Up ×1

Conviction holdings

Positions increased for 3+ consecutive quarters.

Share counts are as reported in 13F filings (not split-adjusted)

Security Value % of portfolio Streak
SCHW $2,317,904,983 1.37% up ×6
COP $1,204,726,426 0.71% up ×6
ILMN $617,980,735 0.37% up ×3
ERIC $463,991,787 0.27% up ×3
FICO $433,508,002 0.26% up ×4
USFD $406,996,923 0.24% up ×6
SNPS $399,388,777 0.24% up ×5
MKTX $397,771,671 0.24% up ×4
BAH $388,145,061 0.23% up ×5
BK $376,497,920 0.22% up ×3
DHR $359,830,054 0.21% up ×6
NFLX $342,039,201 0.20% up ×3
GTLB $234,572,675 0.14% up ×3
SYK $213,421,221 0.13% up ×5
BAC $175,676,861 0.10% up ×3

Biggest new bets

New positions opened this quarter, largest first.

Security Value Shares % of portfolio
Unknown issuer (CUSIP: 314352105) $611,347,660 4,048,660 0.36%
Unknown issuer (CUSIP: 84615Q103) $240,530,216 1,407,762 0.14%
Unknown issuer (CUSIP: G2004J103) $153,240,996 5,363,703 0.09%
Unknown issuer (CUSIP: 26614N201) $70,735,309 521,493 0.04%
DVN $64,942,230 1,571,690 0.04%
FHN $57,102,844 2,227,100 0.03%
Unknown issuer (CUSIP: 438516205) $54,653,990 244,100 0.03%
Unknown issuer (CUSIP: 43849R105) $53,965,628 244,100 0.03%
MCK $15,104,444 19,990 0.01%
Unknown issuer (CUSIP: 31556C106) $13,907,634 475,800 0.01%
DXCM $12,931,200 192,000 0.01%
BMNR $12,113,431 910,100 0.01%
WING $6,260,101 36,100 0.00%

Top movers (QoQ)

Security Action Shares Δ Value Δ
MU Trimmed -2.7M +$14.8B
INTC Trimmed -511K +$7.2B
KLAC Bought more +18.1M +$2.6B
LLY Trimmed -51K +$2.5B
FLEX Trimmed -2.0M +$2.1B
GOOGL Trimmed -128K +$1.0B
UAL Bought more +711K +$788.5M
AAL Bought more +21.7M +$752.0M
LUV Bought more +1.7M +$740.8M
AMGN Trimmed -2.1M -$675.5M

Exited positions

Includes corporate events (mergers, delistings) — not all exits are sells

Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.

SecurityQuarter Shares before Value before Price since exit
HES Sept. 30, 2025 7,652,265 $1,060,144,793 No longer tracked
CCL June 30, 2026 5,363,703 $138,812,634 -9.1%
HON June 30, 2026 488,200 $110,347,846 -1.2%
DFS June 30, 2025 574,953 $98,144,477 No longer tracked
DD June 30, 2026 1,997,159 $91,469,883 3.0%
CTRA June 30, 2026 2,289,750 $80,461,815 No longer tracked
EA Dec. 31, 2025 339,305 $68,437,819 No longer tracked
CHTR Sept. 30, 2025 143,490 $58,660,147 -44.4%
GE Dec. 31, 2025 187,700 $56,463,914 14.6%
LHX June 30, 2025 248,000 $51,908,880 9.4%
VSCO Dec. 31, 2025 1,855,400 $50,355,556 No longer tracked
ALTR March 31, 2025 238,363 $26,007,787 No longer tracked
HON June 30, 2025 122,350 $25,907,613 0.8%
HUBS Sept. 30, 2025 32,150 $17,895,655 -48.6%
SPHR Sept. 30, 2025 419,498 $17,535,016 156.7%
MGM June 30, 2025 550,370 $16,312,967 24.6%
CYBR March 31, 2026 30,500 $13,604,830 No longer tracked
SNDK Sept. 30, 2025 283,370 $12,850,831 1300.3%
OPTU Dec. 31, 2025 4,869,860 $11,736,363 -47.9%
LVS March 31, 2025 224,100 $11,509,776 20.4%
CMA March 31, 2026 125,160 $10,880,159 No longer tracked
FITB June 30, 2026 196,260 $9,118,240 -2.7%
FOLD June 30, 2026 585,400 $8,464,884 No longer tracked
AMH Dec. 31, 2025 242,300 $8,056,475 7.6%
SOLS March 31, 2026 119,750 $5,817,456 -26.2%
EPR Dec. 31, 2025 91,000 $5,278,910 22.8%
ODFL June 30, 2025 23,000 $3,805,350 24.8%
EXAS March 31, 2026 34,300 $3,483,508 No longer tracked
GH Sept. 30, 2025 65,990 $3,434,120 166.9%
GTLS Dec. 31, 2025 17,000 $3,402,550 No longer tracked
RBLX March 31, 2025 50,300 $2,910,358 -35.1%
MATX June 30, 2025 19,250 $2,467,273 95.1%
DG March 31, 2025 32,350 $2,452,777 38.7%
IRBTQ March 31, 2025 303,900 $2,355,225 No longer tracked
SNCY March 31, 2026 142,915 $2,056,547 No longer tracked
SSYS Dec. 31, 2025 165,100 $1,849,120 -3.2%
GLPG Dec. 31, 2025 50,500 $1,749,320 No longer tracked
NRIX Dec. 31, 2025 170,000 $1,570,800 42.2%
ETSY June 30, 2025 32,000 $1,509,760 64.4%
FGEN June 30, 2025 3,740,820 $1,159,282 No longer tracked
WOLF Dec. 31, 2025 32,634 $933,334 49.5%
FTNT Sept. 30, 2025 7,000 $740,040 80.4%
KYNB Dec. 31, 2025 58,879 $721,268 -19.1%
NNBR June 30, 2025 299,200 $676,192 74.3%
DECK June 30, 2025 5,414 $605,340 -13.0%
ZIMV Dec. 31, 2025 31,930 $604,754 No longer tracked
HTZ June 30, 2025 137,400 $541,356 -69.0%
ESAB June 30, 2025 4,067 $473,806 -35.2%
OS June 30, 2026 19,500 $468,000 No longer tracked
ENOV June 30, 2025 11,967 $457,259 -15.4%
HCAT June 30, 2026 340,418 $432,331 -14.6%
DUOL Dec. 31, 2025 900 $289,656 -16.0%
TXG June 30, 2025 30,000 $261,900 438.4%
LICYQ March 31, 2025 140,725 $251,898 No longer tracked
SSTK Dec. 31, 2025 11,730 $244,571 -71.5%
OSUR Sept. 30, 2025 76,100 $228,300 14.5%
MDT June 30, 2026 2,440 $211,427 20.3%
NICE Sept. 30, 2025 1,250 $211,138 -30.5%
CRCL March 31, 2026 2,600 $206,180 -14.6%
FIVE Dec. 31, 2025 1,300 $201,110 28.0%
JAMF Dec. 31, 2025 18,000 $192,600 No longer tracked
MURA Dec. 31, 2025 92,800 $192,096 No longer tracked
LESL March 31, 2026 65,556 $108,167 -46.7%
JELD Sept. 30, 2025 18,700 $73,304 -59.9%
ARAY Sept. 30, 2025 33,700 $46,169 -82.0%