Funds › Primecap Management Co
Primecap Management Co
13F for Q3 2026, filed Nov 12, 2026. 327 positions worth $161.3B.Managers with more than $100 million in US-listed stocks list their holdings each quarter, within 45 days of quarter end. Long positions only: no short sales or cash.
Latest report
Q3 2026
filed Nov 12, 2026
Reported value
$161.3B
−$7.8B (4.6%) vs Q2 2026
Positions
327
324 in Q2 2026
Top 10 share
40.7%
of reported value
CheckedEach line's price per share is checked against other managers' reports of the same stock. Unit mix-ups are corrected. Reports no fix can rescue are left out.
Clean
prices match other managers' reports
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Holdings, Q3 2026
Largest first. Common shares only; puts and calls are under All positions.
| # | The fund's own figures at the end of the quarter. A report can be up to 45 days old when it is filed. Options and bonds are not counted here. | Filing | ||||
|---|---|---|---|---|---|---|
| 1 | MU Micron Technology, Inc. | 18.62M | $19.8B | 12.3% | -3.1% | 13F ↗ |
| 2 | LLY Eli Lilly and Company | 9.08M | $10.5B | 6.5% | -1.0% | 13F ↗ |
| 3 | INTC Intel Corporation | 77.26M | $9.3B | 5.8% | +2.7% | 13F ↗ |
| 4 | GOOGL Alphabet Inc. Class A | 14.52M | $5.0B | 3.1% | -2.3% | 13F ↗ |
| 5 | KLAC KLA Corporation | 20.49M | $4.0B | 2.5% | -0.2% | 13F ↗ |
| 6 | NVDA NVIDIA Corporation | 16.95M | $3.9B | 2.4% | -0.8% | 13F ↗ |
| 7 | MSFT Microsoft Corporation | 7.00M | $3.6B | 2.2% | -1.9% | 13F ↗ |
| 8 | BIIB Biogen Inc. | 15.20M | $3.4B | 2.1% | +0.3% | 13F ↗ |
| 9 | AMZN Amazon.com, Inc. | 12.56M | $3.1B | 1.9% | +5.0% | 13F ↗ |
| 10 | AZN AstraZeneca PLC | 18.11M | $2.9B | 1.8% | +0.1% | 13F ↗ |
| 11 | FLEX Flex Ltd. | 24.04M | $2.6B | 1.6% | +2.9% | 13F ↗ |
| 12 | BSX Boston Scientific Corporation | 58.62M | $2.6B | 1.6% | +16.0% | 13F ↗ |
| 13 | SCHW Charles Schwab Corporation | 25.08M | $2.5B | 1.5% | -0.2% | 13F ↗ |
| 14 | AMGN Amgen Inc. | 5.74M | $2.4B | 1.5% | -15.0% | 13F ↗ |
| 15 | TXN Texas Instruments Incorporated | 8.49M | $2.4B | 1.5% | -0.3% | 13F ↗ |
| 16 | FDX FedEx Corporation | 8.17M | $2.3B | 1.4% | +0.1% | 13F ↗ |
| 17 | TSLA Tesla, Inc. | 6.26M | $2.2B | 1.4% | +2.6% | 13F ↗ |
| 18 | ROST Ross Stores, Inc. | 9.08M | $2.1B | 1.3% | -0.3% | 13F ↗ |
| 19 | LUV Southwest Airlines Company | 49.00M | $2.0B | 1.3% | +0.4% | 13F ↗ |
| 20 | BABA Alibaba Group Holding Limited · ADR | 17.62M | $1.9B | 1.2% | -5.3% | 13F ↗ |
| 21 | UAL United Airlines Holdings, Inc. | 16.40M | $1.8B | 1.1% | -0.4% | 13F ↗ |
| 22 | NTAP NetApp, Inc. | 8.61M | $1.8B | 1.1% | -4.5% | 13F ↗ |
| 23 | GOOG Alphabet Inc. Class C | 5.30M | $1.8B | 1.1% | -1.8% | 13F ↗ |
| 24 | ONC BeOne Medicines Ltd. · ADR | 4.91M | $1.8B | 1.1% | -2.0% | 13F ↗ |
| 25 | BMY Bristol-Myers Squibb Company | 25.20M | $1.6B | 1.0% | +1.1% | 13F ↗ |
| 26 | V Visa Inc. | 4.26M | $1.5B | 1.0% | -0.1% | 13F ↗ |
| 27 | RJF Raymond James Financial, Inc. | 9.24M | $1.5B | 0.9% | Unchanged | 13F ↗ |
| 28 | DAL Delta Air Lines, Inc. | 17.49M | $1.5B | 0.9% | -0.2% | 13F ↗ |
| 29 | COP ConocoPhillips | 11.59M | $1.4B | 0.9% | Unchanged | 13F ↗ |
| 30 | SONY Sony Group Corporation | 59.56M | $1.4B | 0.9% | -0.1% | 13F ↗ |
| 31 | TMO Thermo Fisher Scientific Inc | 1.90M | $1.3B | 0.8% | -4.4% | 13F ↗ |
| 32 | TJX TJX Companies, Inc. | 9.46M | $1.3B | 0.8% | -0.2% | 13F ↗ |
| 33 | ADBE Adobe Inc. | 5.20M | $1.2B | 0.8% | -0.6% | 13F ↗ |
| 34 | ADI Analog Devices, Inc. | 3.12M | $1.2B | 0.8% | -0.3% | 13F ↗ |
| 35 | GSK GSK plc · ADR | 25.19M | $1.2B | 0.8% | Unchanged | 13F ↗ |
| 36 | JPM JPMorgan Chase & Co. | 3.37M | $1.1B | 0.7% | -0.5% | 13F ↗ |
| 37 | HPE Hewlett Packard Enterprise Company | 16.87M | $1.1B | 0.7% | -1.6% | 13F ↗ |
| 38 | ELAN Elanco Animal Health Incorporated | 45.44M | $1.0B | 0.6% | Unchanged | 13F ↗ |
| 39 | AAL American Airlines Group, Inc. | 73.53M | $983.0M | 0.6% | +3.9% | 13F ↗ |
| 40 | ILMN Illumina, Inc. | 3.49M | $955.4M | 0.6% | -0.7% | 13F ↗ |
| 41 | BIDU Baidu, Inc. · ADR | 10.85M | $942.3M | 0.6% | -1.5% | 13F ↗ |
| 42 | NVS Novartis AG · ADR | 6.59M | $938.9M | 0.6% | -0.1% | 13F ↗ |
| 43 | NTRS Northern Trust Corporation | 5.38M | $911.1M | 0.6% | -11.8% | 13F ↗ |
| 44 | JBL Jabil Inc. | 3.16M | $906.8M | 0.6% | -0.2% | 13F ↗ |
| 45 | BMRN BioMarin Pharmaceutical Inc. | 14.99M | $899.3M | 0.6% | +5.6% | 13F ↗ |
| 46 | HPQ HP Inc. | 24.84M | $776.9M | 0.5% | -0.2% | 13F ↗ |
| 47 | ORCL Oracle Corporation | 5.63M | $773.3M | 0.5% | +4.6% | 13F ↗ |
| 48 | IEX IDEX Corporation | 3.30M | $751.5M | 0.5% | -0.1% | 13F ↗ |
| 49 | DIS Walt Disney Company | 7.14M | $749.2M | 0.5% | +1.7% | 13F ↗ |
| 50 | MRVL Marvell Technology, Inc. | 2.74M | $724.5M | 0.4% | -0.6% | 13F ↗ |
Showing the top 50 of 327 positions. Premium lists every position, plus puts and calls.
Changes since Q2 2026
11 new, 93 added to, 170 trimmed, 8 exited, 53 unchanged. By estimated dollars.
New positions (11)
| ICE Intercontinental Exchange Inc. | 1.28M | New | $195.1M |
| RBLX Roblox Corporation | 4.38M | New | $185.5M |
| JLL Jones Lang LaSalle Incorporated | 230,189 | New | $70.3M |
| FNV Franco-Nevada Corporation | 281,850 | New | $67.1M |
| EQT EQT Corporation | 1.16M | New | $56.3M |
| XOM ExxonMobil Holdings Corporation | 235,226 | New | $38.3M |
| WVE Wave Life Sciences, Inc. | 5.13M | New | $19.0M |
| COMP Compass, Inc. | 1.29M | New | $11.5M |
| RDDT Reddit, Inc. | 45,873 | New | $6.5M |
| CSW CSW Industrials, Inc. | 10,517 | New | $3.0M |
Added to (93)
| BSX Boston Scientific Corporation | 58.62M | +16.0% | $353.7M |
| INTC Intel Corporation | 77.26M | +2.7% | $241.7M |
| SNPS Synopsys, Inc. | 1.28M | +42.6% | $166.0M |
| AMZN Amazon.com, Inc. | 12.56M | +5.0% | $149.3M |
| XEL Xcel Energy Inc. | 1.84M | +271% | $94.9M |
| FLEX Flex Ltd. | 24.04M | +2.9% | $74.9M |
| OLLI Ollie's Bargain Outlet Holdings, Inc. | 1.57M | +78.8% | $59.1M |
| BA Boeing Company | 1.34M | +29.1% | $56.2M |
| TSLA Tesla, Inc. | 6.26M | +2.6% | $55.3M |
| LIN Linde plc | 1.00M | +12.9% | $54.5M |
Trimmed (170)
| MU Micron Technology, Inc. | 18.62M | -3.1% | -$634.6M |
| AMGN Amgen Inc. | 5.74M | -15.0% | -$426.9M |
| MKTX MarketAxess Holdings, Inc. | 2.46M | -29.7% | -$170.8M |
| OKTA Okta, Inc. | 781,516 | -48.5% | -$153.6M |
| NTRS Northern Trust Corporation | 5.38M | -11.8% | -$122.1M |
| GOOGL Alphabet Inc. Class A | 14.52M | -2.3% | -$117.6M |
| BABA Alibaba Group Holding Limited · ADR | 17.62M | -5.3% | -$106.3M |
| LLY Eli Lilly and Company | 9.08M | -1.0% | -$103.3M |
| NTAP NetApp, Inc. | 8.61M | -4.5% | -$85.2M |
| ADSK Autodesk, Inc. | 214,700 | -64.2% | -$80.5M |
Exited (8)
| UNH UnitedHealth Group Incorporated | 144,121 | Exited | -$59.9M |
| Exxon Mobil Corp | 249,726 | Exited | -$34.1M |
| Wave Life Sciences Ltd | 5.35M | Exited | -$31.1M |
| RNG RingCentral, Inc. | 264,800 | Exited | -$10.3M |
| Taylor Morrison Home Corp | 84,214 | Exited | -$6.0M |
| GEF-B Greif Inc. Class B | 15,000 | Exited | -$1.4M |
| Marqeta Inc | 59,600 | Exited | -$242.0K |
| New Fortress Energy Inc | 91,100 | Exited | -$33.1K |
The 10 largest of each, by estimated dollars: shares changed times the later report's price. Index tracking, splits and mergers move positions too.
All positions
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Reported value by quarter
Value and number of positions at the end of each quarter.
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Largest positions in earlier quarters
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Ten largest positions
By value, Q3 2026.
Filings
| Filing | ||||||
|---|---|---|---|---|---|---|
| Q3 2026 | Nov 12, 2026 | 13F-HR | 327 | $161.3B | Current | SEC ↗ |
| Q2 2026 | Aug 14, 2026 | 13F-HR | 324 | $169.1B | Current | SEC ↗ |
| Q1 2026 | May 11, 2026 | 13F-HR | 320 | $127.0B | Current | SEC ↗ |
| Q4 2025 | Feb 11, 2026 | 13F-HR | 319 | $132.1B | Current | SEC ↗ |
| Q3 2025 | Nov 12, 2025 | 13F-HR | 327 | $130.6B | Current | SEC ↗ |
| Q2 2025 | Aug 11, 2025 | 13F-HR | 333 | $126.2B | Current | SEC ↗ |
| Q1 2025 | May 9, 2025 | 13F-HR | 335 | $121.0B | Current | SEC ↗ |
Most recent first, up to 80. An amendment can replace a report or add holdings to it. All 13F filings
Information, not investment advice. Values are the fund's own figures at quarter end; a report can be up to 45 days old when filed. Disclaimer