# PRIMECAP MANAGEMENT CO/CA/

> Institutional holdings reported to the SEC as of Q2 2026 on Form 13F. CIK 763212. Source: https://holderbook.com/funds/763212-primecap-management-co-ca/

- Reported value: $169.1B
- Positions: 324
- Weight of the ten largest: 42.6%
- Filed: 2026-08-14

A 13F reports long US equity positions only. Short positions, bonds, foreign listings, private holdings and cash are not visible, so this is not the manager's whole book.

## Holdings

| Security | Ticker | Value | Shares | Weight | Quarters held |
|---|---|---|---|---|---|
| MICRON TECHNOLOGY INC | [MU](https://holderbook.com/stocks/MU/) | $22.2B | 19,217,236 | 13.1% | 31 |
| ELI LILLY & CO | [LLY](https://holderbook.com/stocks/LLY/) | $11.0B | 9,172,904 | 6.5% | 31 |
| INTEL CORP | [INTC](https://holderbook.com/stocks/INTC/) | $10.5B | 75,250,958 | 6.2% | 31 |
| KLA CORP | [KLAC](https://holderbook.com/stocks/KLAC/) | $6.2B | 20,536,730 | 3.7% | 31 |
| ALPHABET INC | [GOOGL](https://holderbook.com/stocks/GOOGL/) | $5.3B | 14,859,769 | 3.1% | 31 |
| FLEX LTD | [FLEX](https://holderbook.com/stocks/FLEX/) | $3.8B | 23,358,875 | 2.2% | 31 |
| ASTRAZENECA PLC | [AZN](https://holderbook.com/stocks/AZN/) | $3.4B | 18,095,178 | 2.0% | 2 |
| NVIDIA CORPORATION | [NVDA](https://holderbook.com/stocks/NVDA/) | $3.4B | 17,079,180 | 2.0% | 31 |
| BIOGEN INC | [BIIB](https://holderbook.com/stocks/BIIB/) | $3.3B | 15,154,606 | 1.9% | 31 |
| AMAZON COM INC | [AMZN](https://holderbook.com/stocks/AMZN/) | $2.9B | 11,962,188 | 1.7% | 31 |
| MICROSOFT CORP | [MSFT](https://holderbook.com/stocks/MSFT/) | $2.7B | 7,140,870 | 1.6% | 31 |
| TESLA INC | [TSLA](https://holderbook.com/stocks/TSLA/) | $2.6B | 6,103,030 | 1.5% | 31 |
| FEDEX CORP | [FDX](https://holderbook.com/stocks/FDX/) | $2.6B | 8,156,799 | 1.5% | 31 |
| TEXAS INSTRS INC | [TXN](https://holderbook.com/stocks/TXN/) | $2.5B | 8,514,989 | 1.5% | 31 |
| SOUTHWEST AIRLS CO | [LUV](https://holderbook.com/stocks/LUV/) | $2.5B | 48,797,725 | 1.5% | 31 |
| AMGEN INC | [AMGN](https://holderbook.com/stocks/AMGN/) | $2.4B | 6,756,962 | 1.4% | 31 |
| SCHWAB CHARLES CORP | [SCHW](https://holderbook.com/stocks/SCHW/) | $2.3B | 25,120,895 | 1.4% | 31 |
| UNITED AIRLS HLDGS INC | [UAL](https://holderbook.com/stocks/UAL/) | $2.2B | 16,461,630 | 1.3% | 31 |
| BOSTON SCIENTIFIC CORP | [BSX](https://holderbook.com/stocks/BSX/) | $2.2B | 50,520,914 | 1.3% | 31 |
| ROSS STORES INC | [ROST](https://holderbook.com/stocks/ROST/) | $1.9B | 9,104,980 | 1.1% | 31 |
| ALPHABET INC | [GOOG](https://holderbook.com/stocks/GOOG/) | $1.9B | 5,399,060 | 1.1% | 31 |
| ALIBABA GROUP HLDG LTD | [BABA](https://holderbook.com/stocks/BABA/) | $1.8B | 18,611,306 | 1.1% | 31 |
| DELTA AIR LINES INC | [DAL](https://holderbook.com/stocks/DAL/) | $1.6B | 17,521,167 | 1.0% | 31 |
| VISA INC | [V](https://holderbook.com/stocks/V/) | $1.5B | 4,268,491 | 0.9% | 31 |
| BRISTOL-MYERS SQUIBB CO | [BMY](https://holderbook.com/stocks/BMY/) | $1.4B | 24,923,900 | 0.8% | 31 |
| TJX COS INC NEW | [TJX](https://holderbook.com/stocks/TJX/) | $1.4B | 9,476,020 | 0.8% | 31 |
| BEONE MEDICINES LTD | [ONC](https://holderbook.com/stocks/ONC/) | $1.4B | 5,007,931 | 0.8% | 31 |
| RAYMOND JAMES FINL INC | [RJF](https://holderbook.com/stocks/RJF/) | $1.4B | 9,242,552 | 0.8% | 31 |
| NETAPP INC | [NTAP](https://holderbook.com/stocks/NTAP/) | $1.4B | 9,016,690 | 0.8% | 31 |
| GSK PLC | [GSK](https://holderbook.com/stocks/GSK/) | $1.3B | 25,182,068 | 0.8% | 16 |
| AMERICAN AIRLINES GROUP INC | [AAL](https://holderbook.com/stocks/AAL/) | $1.3B | 70,732,954 | 0.8% | 31 |
| BAIDU INC | [BIDU](https://holderbook.com/stocks/BIDU/) | $1.3B | 11,010,100 | 0.7% | 27 |
| ANALOG DEVICES INC | [ADI](https://holderbook.com/stocks/ADI/) | $1.2B | 3,128,329 | 0.7% | 31 |
| JABIL INC | [JBL](https://holderbook.com/stocks/JBL/) | $1.2B | 3,167,120 | 0.7% | 31 |
| CONOCOPHILLIPS | [COP](https://holderbook.com/stocks/COP/) | $1.2B | 11,588,365 | 0.7% | 10 |
| SONY GROUP CORP | [SONY](https://holderbook.com/stocks/SONY/) | $1.2B | 59,603,230 | 0.7% | 31 |
| ELANCO ANIMAL HEALTH INC | [ELAN](https://holderbook.com/stocks/ELAN/) | $1.1B | 45,445,012 | 0.7% | 31 |
| JPMORGAN CHASE & CO | [JPM](https://holderbook.com/stocks/JPM/) | $1.1B | 3,382,627 | 0.7% | 31 |
| ADOBE INC | [ADBE](https://holderbook.com/stocks/ADBE/) | $1.1B | 5,227,139 | 0.6% | 31 |
| NORTHERN TR CORP | [NTRS](https://holderbook.com/stocks/NTRS/) | $1.1B | 6,100,742 | 0.6% | 31 |
| CORNING INC | [GLW](https://holderbook.com/stocks/GLW/) | $1.1B | 4,131,872 | 0.6% | 31 |
| NOVARTIS AG | [NVS](https://holderbook.com/stocks/NVS/) | $1.0B | 6,592,124 | 0.6% | 31 |
| THERMO FISHER SCIENTIFIC INC | [TMO](https://holderbook.com/stocks/TMO/) | $993.8M | 1,982,271 | 0.6% | 31 |
| CATERPILLAR INC | [CAT](https://holderbook.com/stocks/CAT/) | $928.3M | 871,700 | 0.5% | 31 |
| MARVELL TECHNOLOGY INC | [MRVL](https://holderbook.com/stocks/MRVL/) | $821.6M | 2,757,995 | 0.5% | 14 |
| BIOMARIN PHARMACEUTICAL INC | [BMRN](https://holderbook.com/stocks/BMRN/) | $812.0M | 14,190,183 | 0.5% | 31 |
| NEXTPOWER INC | [NXT](https://holderbook.com/stocks/NXT/) | $796.9M | 6,688,767 | 0.5% | 14 |
| ORACLE CORP | [ORCL](https://holderbook.com/stocks/ORCL/) | $789.4M | 5,386,230 | 0.5% | 31 |
| HEWLETT PACKARD ENTERPRISE C | [HPE](https://holderbook.com/stocks/HPE/) | $773.2M | 17,140,875 | 0.5% | 31 |
| APPLIED MATLS INC | [AMAT](https://holderbook.com/stocks/AMAT/) | $754.0M | 1,042,926 | 0.4% | 31 |
| IDEX CORP | [IEX](https://holderbook.com/stocks/IEX/) | $749.0M | 3,300,072 | 0.4% | 31 |
| ASML HLDG NV | [ASML](https://holderbook.com/stocks/ASML/) | $699.4M | 351,576 | 0.4% | 25 |
| DISNEY WALT CO | [DIS](https://holderbook.com/stocks/DIS/) | $675.8M | 7,020,957 | 0.4% | 31 |
| ROYAL CARIBBEAN GROUP | [RCL](https://holderbook.com/stocks/RCL/) | $669.8M | 2,109,421 | 0.4% | 31 |
| XOMETRY INC | [XMTR](https://holderbook.com/stocks/XMTR/) | $640.5M | 6,636,057 | 0.4% | 21 |
| ILLUMINA INC | [ILMN](https://holderbook.com/stocks/ILMN/) | $618.0M | 3,514,649 | 0.4% | 31 |
| AECOM | [ACM](https://holderbook.com/stocks/ACM/) | $613.3M | 8,787,043 | 0.4% | 31 |
| FEDEX FGHT HLDG CO INC | - | $611.3M | 4,048,660 | 0.4% | 1 |
| ADVANCED MICRO DEVICES INC | [AMD](https://holderbook.com/stocks/AMD/) | $608.6M | 1,047,730 | 0.4% | 5 |
| JACOBS SOLUTIONS INC | [J](https://holderbook.com/stocks/J/) | $575.3M | 4,565,799 | 0.3% | 16 |
| CISCO SYS INC | [CSCO](https://holderbook.com/stocks/CSCO/) | $568.3M | 4,838,460 | 0.3% | 31 |
| ENTEGRIS INC | [ENTG](https://holderbook.com/stocks/ENTG/) | $562.1M | 3,125,433 | 0.3% | 31 |
| WELLS FARGO & CO | [WFC](https://holderbook.com/stocks/WFC/) | $554.7M | 6,712,022 | 0.3% | 31 |
| TRANSDIGM GROUP INC | [TDG](https://holderbook.com/stocks/TDG/) | $546.4M | 410,217 | 0.3% | 31 |
| HP INC | [HPQ](https://holderbook.com/stocks/HPQ/) | $546.0M | 24,885,325 | 0.3% | 31 |
| APPLE INC | [AAPL](https://holderbook.com/stocks/AAPL/) | $509.5M | 1,760,880 | 0.3% | 31 |
| TELEFONAKTIEBOLAGET LM ERICS | [ERIC](https://holderbook.com/stocks/ERIC/) | $464.0M | 41,613,613 | 0.3% | 31 |
| LINDE PLC | [LIN](https://holderbook.com/stocks/LIN/) | $460.3M | 886,920 | 0.3% | 14 |
| DOLLAR TREE INC | [DLTR](https://holderbook.com/stocks/DLTR/) | $455.8M | 3,768,875 | 0.3% | 25 |
| FAIR ISAAC CORP | [FICO](https://holderbook.com/stocks/FICO/) | $433.5M | 362,835 | 0.3% | 5 |
| GLAUKOS CORP | [GKOS](https://holderbook.com/stocks/GKOS/) | $425.0M | 3,040,705 | 0.3% | 31 |
| PAYPAL HLDGS INC | [PYPL](https://holderbook.com/stocks/PYPL/) | $422.1M | 9,775,170 | 0.2% | 31 |
| CME GROUP INC | [CME](https://holderbook.com/stocks/CME/) | $420.6M | 1,904,643 | 0.2% | 31 |
| MATTEL INC | [MAT](https://holderbook.com/stocks/MAT/) | $409.5M | 29,505,735 | 0.2% | 31 |
| US FOODS HLDG CORP | [USFD](https://holderbook.com/stocks/USFD/) | $407.0M | 3,980,409 | 0.2% | 9 |
| SYNOPSYS INC | [SNPS](https://holderbook.com/stocks/SNPS/) | $399.4M | 895,350 | 0.2% | 6 |
| META PLATFORMS INC | [META](https://holderbook.com/stocks/META/) | $399.0M | 708,290 | 0.2% | 31 |
| MARKETAXESS HLDGS INC | [MKTX](https://holderbook.com/stocks/MKTX/) | $397.8M | 3,504,905 | 0.2% | 31 |
| CURTISS WRIGHT CORP | [CW](https://holderbook.com/stocks/CW/) | $390.1M | 514,815 | 0.2% | 31 |
| BOOZ ALLEN HAMILTON HLDG COR | [BAH](https://holderbook.com/stocks/BAH/) | $388.1M | 6,397,644 | 0.2% | 6 |
| CHEVRON CORPORATION | [CVX](https://holderbook.com/stocks/CVX/) | $378.8M | 2,285,458 | 0.2% | 4 |
| BANK OF NY MELLON CORP | [BNY](https://holderbook.com/stocks/BNY/) | $376.5M | 2,603,540 | 0.2% | 14 |
| DANAHER CORP DEL | [DHR](https://holderbook.com/stocks/DHR/) | $359.8M | 1,889,070 | 0.2% | 21 |
| ALBEMARLE CORP | [ALB](https://holderbook.com/stocks/ALB/) | $358.1M | 2,652,009 | 0.2% | 31 |
| MARSH & MCLENNAN COS INC | [MRSH](https://holderbook.com/stocks/MRSH/) | $357.5M | 2,145,025 | 0.2% | 31 |
| RHYTHM PHARMACEUTICALS INC | [RYTM](https://holderbook.com/stocks/RYTM/) | $351.8M | 3,168,853 | 0.2% | 28 |
| BIONTECH SE | [BNTX](https://holderbook.com/stocks/BNTX/) | $351.0M | 3,772,031 | 0.2% | 27 |
| PALO ALTO NETWORKS INC | [PANW](https://holderbook.com/stocks/PANW/) | $347.8M | 1,019,890 | 0.2% | 30 |
| LIVANOVA PLC | [LIVN](https://holderbook.com/stocks/LIVN/) | $342.8M | 4,168,377 | 0.2% | 31 |
| NETFLIX INC | [NFLX](https://holderbook.com/stocks/NFLX/) | $342.0M | 4,790,465 | 0.2% | 17 |
| MASTERCARD INCORPORATED | [MA](https://holderbook.com/stocks/MA/) | $336.2M | 654,691 | 0.2% | 31 |
| WESTERN DIGITAL CORP | [WDC](https://holderbook.com/stocks/WDC/) | $329.9M | 516,440 | 0.2% | 31 |
| ZIMMER BIOMET HOLDINGS INC | [ZBH](https://holderbook.com/stocks/ZBH/) | $328.6M | 3,816,680 | 0.2% | 31 |
| CITIGROUP INC | [C](https://holderbook.com/stocks/C/) | $326.6M | 2,333,600 | 0.2% | 31 |
| NORFOLK SOUTHN CORP | [NSC](https://holderbook.com/stocks/NSC/) | $324.9M | 1,032,910 | 0.2% | 31 |
| SYSCO CORP | [SYY](https://holderbook.com/stocks/SYY/) | $313.5M | 3,750,929 | 0.2% | 22 |
| EDWARDS LIFESCIENCES CORP | [EW](https://holderbook.com/stocks/EW/) | $308.3M | 3,408,291 | 0.2% | 31 |
| PERFORMANCE FOOD GROUP CO | [PFGC](https://holderbook.com/stocks/PFGC/) | $305.1M | 2,728,898 | 0.2% | 11 |
| INTUIT | [INTU](https://holderbook.com/stocks/INTU/) | $289.7M | 1,110,067 | 0.2% | 31 |
| MONGODB INC | [MDB](https://holderbook.com/stocks/MDB/) | $284.2M | 846,004 | 0.2% | 24 |

## What the disclosed book did

Not the fund's return. This is the change in value of the positions disclosed on Form 13F, had they been left untouched, against SPY over the same quarter ends.

| Quarter | Book | Market | Difference | Priced |
|---|---|---|---|---|
| Q2 2026 | +36.0% | +14.8% | +21.2% | 100% |
| Q1 2026 | -2.5% | -4.6% | +2.1% | 100% |
| Q4 2025 | +9.6% | +2.4% | +7.2% | 100% |
| Q3 2025 | +11.1% | +7.8% | +3.3% | 100% |
| Q2 2025 | +8.6% | +10.5% | -1.9% | 100% |
| Q1 2025 | -3.0% | -4.6% | +1.6% | 100% |
| Q4 2024 | -1.4% | +2.1% | -3.6% | 100% |
| Q3 2024 | +0.8% | +5.4% | -4.7% | 100% |

## Quarter by quarter

| Quarter | Value | Positions |
|---|---|---|
| Q2 2026 | $169.1B | 324 |
| Q1 2026 | $127.0B | 320 |
| Q4 2025 | $132.1B | 319 |
| Q3 2025 | $130.6B | 327 |
| Q2 2025 | $126.2B | 333 |
| Q1 2025 | $121.0B | 335 |
| Q4 2024 | $129.1B | 329 |
| Q3 2024 | $136.0B | 336 |
| Q2 2024 | $138.1B | 332 |
| Q1 2024 | $134.1B | 335 |
| Q4 2023 | $126.3B | 334 |
| Q3 2023 | $118.5B | 331 |