PRIMECAP MANAGEMENT CO/CA/
Filing Date
Global Rank
#67
/ 8,609
▼ 1
· as of Mar 2026
Top Industry
Drug Manufacturers - General
18.1%
3Y Alpha vs SPY
+3.3%
Period ended 4 months ago
Filed May 13, 2026 · 2mo
25 quarters · since Mar 2020
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+87.2%
SPY
+72.6%
Annualised alpha
+3.3%
Max drawdown
−21.7%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
318 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
7.0%
−1.1 pts
Top 5
22.3%
−0.8 pts
Top 10
33.8%
−0.9 pts
HHI
197
Diversified−13
Portfolio Trend
25 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Technology | 29.8% | $36,227,595,591 |
| Healthcare | 26.8% | $32,570,219,471 |
| Industrials | 12.1% | $14,720,546,121 |
| Consumer Cyclical | 11.3% | $13,774,019,384 |
| Financial Services | 8.8% | $10,687,661,873 |
| Communication Services | 6.2% | $7,557,376,729 |
| Energy | 2.2% | $2,684,674,960 |
| Consumer Defensive | 1.4% | $1,687,157,815 |
| Basic Materials | 1.3% | $1,641,957,686 |
| Real Estate | 0.1% | $108,398,956 |
| Utilities | 0.0% | $18,793,399 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| ERIC | Ericsson Lm Telephone Co | +10,874,714 | 37,504,013 | $422,670,226 | |
| GTLB | Gitlab Inc. | +6,139,789 | 7,299,050 | $157,951,442 | |
| HPQ | Hp Inc | +3,814,140 | 21,469,625 | $412,431,496 | |
| PYPL | PayPal Holdings, Inc. | +1,858,000 | 10,026,490 | $453,498,142 | |
| BSX | Boston Scientific Corp | +1,433,590 | 32,529,774 | $2,041,243,318 | |
| INDI | indie Semiconductor, Inc. | +1,291,598 | 31,066,306 | $100,033,505 | |
| ADBE | Adobe Inc. | +1,054,640 | 4,730,846 | $1,149,974,045 | |
| CARR | CARRIER GLOBAL Corp | +920,630 | 3,840,205 | $216,241,943 | |
| XMTR | Xometry, Inc. | +812,590 | 6,495,497 | $265,276,097 | |
| BA | Boeing Co | +786,810 | 795,910 | $158,409,967 | |
| WVE | Wave Life Sciences Ltd. | +737,670 | 4,832,952 | $35,038,902 | |
| CSGP | Costar Group, Inc. | +652,600 | 803,600 | $32,417,224 | |
| MBLY | Mobileye Global Inc. | +552,500 | 3,197,180 | $21,964,626 | |
| SEPN | Septerna, Inc. | +502,734 | 1,048,834 | $25,203,481 | |
| VNOM | Viper Energy, Inc. | +473,152 | 1,165,252 | $54,755,191 | |
| NFLX | Netflix Inc | +388,680 | 4,411,790 | $424,193,608 | |
| PSN | Parsons Corp | +369,700 | 1,020,400 | $55,275,068 | |
| TTD | Trade Desk, Inc. | +324,000 | 1,232,605 | $27,967,807 | |
| TOST | Toast, Inc. | +320,500 | 476,500 | $12,632,015 | |
| ALLO | Allogene Therapeutics, Inc. | +240,000 | 8,379,840 | $20,446,809 | |
| SYNA | SYNAPTICS Inc | +236,700 | 448,400 | $31,405,936 | |
| SONY | Sony Group Corp | +229,400 | 58,530,830 | $1,211,588,181 | |
| BAC | Bank Of America Corp /De/ | +221,500 | 2,762,232 | $134,658,810 | |
| BIRK | Birkenstock Holding plc | +210,400 | 597,200 | $21,397,676 | |
| BRKR | Bruker Corp | +202,500 | 857,600 | $30,976,512 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| MU | Micron Technology Inc | −2,920,732 | 21,874,204 | $7,389,981,079 | |
| HPE | Hewlett Packard Enterprise Co | −1,983,637 | 17,229,080 | $410,224,394 | |
| QCOM | Qualcomm Inc/De | −1,632,497 | 705,587 | $90,865,493 | |
| NFE | New Fortress Energy Inc. | −1,520,800 | 540,300 | $318,777 | |
| RIG | Transocean Ltd. | −1,411,680 | 2,573,290 | $17,060,912 | |
| FLEX | Flex Ltd. | −1,318,643 | 25,383,448 | $1,661,600,506 | |
| NWL | Newell Brands Inc. | −1,183,553 | 7,525,390 | $25,812,087 | |
| WFC | Wells Fargo & Company/Mn | −637,170 | 7,723,102 | $614,836,150 | |
| FIS | Fidelity National Information Services, Inc. | −628,800 | 217,406 | $10,198,515 | |
| CSX | Csx Corp | −557,100 | 1,634,900 | $67,112,645 | |
| ARLO | Arlo Technologies, Inc. | −460,227 | 2,318,513 | $32,992,439 | |
| GTM | ZoomInfo Technologies Inc. | −445,200 | 3,224,964 | $19,285,284 | |
| CPRI | Capri Holdings Ltd | −444,709 | 3,462,035 | $61,001,056 | |
| KLAC | Kla Corp | −438,315 | 2,437,647 | $358,921,581 | |
| TXN | Texas Instruments Inc | −429,920 | 9,654,766 | $1,874,376,271 | |
| AUR | Aurora Innovation, Inc. | −397,470 | 9,806,110 | $40,401,173 | |
| ELAN | Elanco Animal Health Inc | −373,132 | 45,840,956 | $1,096,974,077 | |
| RVTY | Revvity, Inc. | −371,255 | 867,030 | $75,960,498 | |
| INTC | Intel Corp | −370,300 | 75,761,968 | $3,343,375,647 | |
| MQ | Marqeta, Inc. | −370,000 | 163,600 | $2,669,952 | |
| IQV | Iqvia Holdings Inc. | −369,739 | 62,332 | $10,630,099 | |
| ORCL | Oracle Corp | −357,610 | 5,674,130 | $834,721,264 | |
| BMRN | Biomarin Pharmaceutical Inc | −355,309 | 14,194,005 | $801,819,342 | |
| LUV | Southwest Airlines Co | −322,600 | 47,069,495 | $1,768,400,927 | |
| FORM | Formfactor Inc | −292,602 | 1,788,644 | $173,480,581 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
9 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| AZN | Astrazeneca PLC | 18,213,708 | $3,592,107,491 | |
| WM | Waste Management Inc | 277,600 | $63,789,704 | |
| LHX | L3harris Technologies, Inc. /De/ | 143,000 | $49,356,450 | |
| PVLA | Palvella Therapeutics, Inc. | 195,030 | $24,310,489 | |
| FITB | Fifth Third Bancorp | 196,260 | $9,118,239 | |
| XEL | Xcel Energy Inc | 67,000 | $5,322,480 | |
| ITT | Itt Inc. | 9,000 | $1,714,770 | |
| WMG | Warner Music Group Corp. | 17,300 | $441,842 | |
| SNDK | Sandisk Corp | 400 | $254,136 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
5 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| SOLS | Solstice Advanced Materials Inc. | 119,750 | $5,817,455 | |
| EXAS | EXACT SCIENCES CORP | 34,300 | $3,483,508 | |
| SNCY | Sun Country Airlines Holdings, LLC | 142,915 | $2,056,546 | |
| CRCL | Circle Internet Group, Inc. | 2,600 | $206,180 | |
| LESL | Leslie's, Inc. | 65,556 | $108,167 | |
| No positions match the current search. | ||||
318 positions ·
$121,678,401,985 total
· as of Mar 31, 2026
All sectors
Basic Materials
Communication Services
Consumer Cyclical
Consumer Defensive
Energy
Financial Services
Healthcare
Industrials
Real Estate
Technology
Utilities
Showing 1–50
of 318 positions by value
· page 1 of 7
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| LLY |
ELI LILLY & Co
Healthcare
|
Reduced | 9,223,432 | $8,483,436,050 | 6.97% | |
| MU |
Micron Technology Inc
Technology
|
Reduced | 21,874,204 | $7,389,981,079 | 6.07% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
Reduced | 14,987,459 | $4,309,793,710 | 3.54% | |
| AZN |
Astrazeneca PLC
Healthcare
|
NEW | 18,213,708 | $3,592,107,491 | 2.95% | |
| INTC |
Intel Corp
Technology
|
Reduced | 75,761,968 | $3,343,375,647 | 2.75% | |
| AMGN |
Amgen Inc
Healthcare
|
Reduced | 8,874,129 | $3,122,362,288 | 2.57% | |
| NVDA |
Nvidia Corp
Technology
|
Reduced | 17,188,230 | $2,997,627,312 | 2.46% | |
| BIIB |
Biogen Inc.
Healthcare
|
Reduced | 14,757,607 | $2,705,512,091 | 2.22% | |
| MSFT |
Microsoft Corp
Technology
|
Reduced | 7,264,560 | $2,689,122,175 | 2.21% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Reduced | 12,107,038 | $2,521,532,804 | 2.07% | |
| FDX |
Fedex Corp
Industrials
|
Reduced | 8,303,010 | $2,383,051,051 | 1.96% | |
| BABA |
Alibaba Group Holding Ltd
Consumer Cyclical
|
Reduced | 18,722,316 | $2,348,901,765 | 1.93% | |
| TSLA |
Tesla, Inc.
Consumer Cyclical
|
Reduced | 6,125,520 | $2,277,162,060 | 1.87% | |
| SCHW |
Schwab Charles Corp
Financial Services
|
Added | 23,441,915 | $2,203,071,171 | 1.81% | |
| BSX |
Boston Scientific Corp
Healthcare
|
Added | 32,529,774 | $2,041,243,318 | 1.68% | |
| ROST |
Ross Stores, Inc.
Consumer Cyclical
|
Reduced | 9,170,030 | $1,986,503,598 | 1.63% | |
| TXN |
Texas Instruments Inc
Technology
|
Reduced | 9,654,766 | $1,874,376,271 | 1.54% | |
| LUV |
Southwest Airlines Co
Industrials
|
Reduced | 47,069,495 | $1,768,400,927 | 1.45% | |
| FLEX |
Flex Ltd.
Technology
|
Reduced | 25,383,448 | $1,661,600,506 | 1.37% | |
| TJX |
Tjx Companies Inc /De/
Consumer Cyclical
|
Reduced | 9,588,920 | $1,531,350,524 | 1.26% | |
| COP |
Conocophillips
Energy
|
Added | 11,579,265 | $1,528,462,980 | 1.26% | |
| BMY |
Bristol Myers Squibb Co
Healthcare
|
Added | 24,985,149 | $1,515,349,286 | 1.25% | |
| ONC |
BeOne Medicines Ltd.
Healthcare
|
Reduced | 4,975,181 | $1,477,479,501 | 1.21% | |
| UAL |
United Airlines Holdings, Inc.
Industrials
|
Reduced | 15,750,610 | $1,450,158,662 | 1.19% | |
| GSK |
GSK plc
Healthcare
|
Added | 25,204,538 | $1,391,038,452 | 1.14% | |
| RJF |
Raymond James Financial Inc
Financial Services
|
Added | 9,347,172 | $1,353,377,033 | 1.11% | |
| BIDU |
Baidu, Inc.
Communication Services
|
Reduced | 11,056,800 | $1,231,948,656 | 1.01% | |
| V |
Visa Inc.
Financial Services
|
Added | 4,060,201 | $1,227,155,150 | 1.01% | |
| SONY |
Sony Group Corp
Technology
|
Added | 58,530,830 | $1,211,588,181 | 1.00% | |
| DAL |
Delta Air Lines, Inc.
Industrials
|
Reduced | 17,548,567 | $1,166,628,734 | 0.96% | |
| NVS |
Novartis AG
Healthcare
|
Reduced | 7,567,354 | $1,155,913,323 | 0.95% | |
| ADBE |
Adobe Inc.
Technology
|
Added | 4,730,846 | $1,149,974,045 | 0.95% | |
| ELAN |
Elanco Animal Health Inc
Healthcare
|
Reduced | 45,840,956 | $1,096,974,077 | 0.90% | |
| JPM |
Jpmorgan Chase & Co
Financial Services
|
Reduced | 3,403,527 | $1,001,181,502 | 0.82% | |
| ADI |
Analog Devices Inc
Technology
|
Reduced | 3,136,089 | $997,715,354 | 0.82% | |
| TMO |
Thermo Fisher Scientific Inc.
Healthcare
|
Reduced | 1,982,531 | $974,473,462 | 0.80% | |
| NTAP |
NetApp, Inc.
Technology
|
Reduced | 9,057,455 | $927,392,817 | 0.76% | |
| NTRS |
Northern Trust Corp
Financial Services
|
Reduced | 6,549,037 | $914,049,094 | 0.75% | |
| JBL |
Jabil Inc
Technology
|
Reduced | 3,281,169 | $871,576,921 | 0.72% | |
| ORCL |
Oracle Corp
Technology
|
Reduced | 5,674,130 | $834,721,264 | 0.69% | |
| NXT |
Nextpower Inc.
Technology
|
Reduced | 6,760,847 | $815,020,105 | 0.67% | |
| BMRN |
Biomarin Pharmaceutical Inc
Healthcare
|
Reduced | 14,194,005 | $801,819,342 | 0.66% | |
| ACM |
Aecom
Industrials
|
Reduced | 8,647,073 | $733,444,731 | 0.60% | |
| RCL |
Royal Caribbean Cruises Ltd
Consumer Cyclical
|
Reduced | 2,346,921 | $645,825,720 | 0.53% | |
| IEX |
Idex Corp /De/
Industrials
|
Added | 3,302,937 | $626,071,708 | 0.51% | |
| CAT |
Caterpillar Inc
Industrials
|
Reduced | 872,260 | $617,961,319 | 0.51% | |
| WFC |
Wells Fargo & Company/Mn
Financial Services
|
Reduced | 7,723,102 | $614,836,150 | 0.51% | |
| DIS |
Walt Disney Co
Communication Services
|
Reduced | 6,235,127 | $600,941,540 | 0.49% | |
| J |
Jacobs Solutions Inc.
Industrials
|
Reduced | 4,515,479 | $574,730,167 | 0.47% | |
| GLW |
Corning Inc /Ny
Technology
|
Reduced | 4,134,772 | $562,204,948 | 0.46% |