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PRIMECAP Management13F | |
| PRIMECAP Management | |
| Last update 2026-08-06 | 320 Stocks (9 new) |
| Value $127.01 Bil | Turnover 4 % |
PRIMECAP Management Profile
PRIMECAP Management Company was founded in 1983 in Pasadena, CA as an independent investment management company. PRIMECAP manages US-focused equity portfolios for a limited number of institutions and mutual funds.
The firm’s objective is to provide superior long-term equity investment results following an investment approach based on four key principles: individual decision-making, commitment to fundamental research, long-term investment horizon and focus on value.
PRIMECAP Management utilizes a multi-counselor investment model whereby each portfolio manager has complete autonomy over a distinct sleeve of each Fund.
The firm’s objective is to provide superior long-term equity investment results following an investment approach based on four key principles: individual decision-making, commitment to fundamental research, long-term investment horizon and focus on value.
PRIMECAP Management utilizes a multi-counselor investment model whereby each portfolio manager has complete autonomy over a distinct sleeve of each Fund.
PRIMECAP Management Investing Philosophy
PRIMECAP looks for stocks that will outperform the market over a three to five-year horizon. The firm strives to recognize values early and patiently wait for the market to reach a similar conclusion. Often, PRIMECAP's search begins with companies and industries that are currently out of favor among investors and, thus, the firm's investment ideas are frequently early. Despite this, conviction derived through the firm's research efforts gives it the fortitude to stay the course when the near-term fundamentals are challenging, even if the firm believes the long-term thesis is intact.
PRIMECAP Management Top Holdings of 2026-03-31
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| Ticker | | Company | Shares | Value ($1000) | Shares Change % | Weighting % | Trade Impact % | % of Shares outstanding | 3M Change % | YTD Change % | Market Cap $Mil | Industry |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
LLY | Eli Lilly and Co | 9,223,432 | 8,483,436.1 | -0.46% | 6.680 | -0.03% | 1.030 | +21.83% | +10.71% | 1,056,891.0 | Drug Manufacturers | |
MU | Micron Technology Inc | 21,874,204 | 7,389,981.1 | -11.78% | 5.820 | -0.63% | 1.940 | +35.74% | +207.65% | 991,121.5 | Semiconductors | |
GOOGL | Alphabet Inc | 14,987,459 | 4,309,793.7 | -0.93% | 3.390 | -0.03% | 0.120 | -10.92% | +13.34% | 4,328,478.5 | Interactive Media | |
AZN | AstraZeneca PLC | 18,213,708 | 3,592,107.5 | New Holding | 2.830 | +2.83% | 1.170 | -10.97% | -6.44% | 247,531.5 | Drug Manufacturers | |
KLAC | KLA Corp | 24,376,470 | 3,589,215.8 | -15.24% | 2.830 | -0.40% | 1.870 | +12.50% | +63.46% | 258,840.0 | Semiconductors | |
INTC | Intel Corp | 75,761,968 | 3,343,375.6 | -0.49% | 2.630 | -0.01% | 1.510 | -7.27% | +175.47% | 512,722.6 | Semiconductors | |
AMGN | Amgen Inc | 8,874,129 | 3,122,362.3 | -0.35% | 2.460 | -0.01% | 1.640 | +25.82% | +27.38% | 222,321.2 | Drug Manufacturers | |
NVDA | NVIDIA Corp | 17,188,230 | 2,997,627.3 | -0.23% | 2.360 | -0.01% | 0.070 | +6.01% | +20.23% | 5,424,535.2 | Semiconductors | |
FDX | FedEx Corp | 8,303,010 | 2,957,366.5 | -2.46% | 2.330 | -0.05% | 3.480 | +5.63% | +38.16% | 75,367.7 | Transportation | |
BIIB | Biogen Inc | 14,757,607 | 2,705,512.1 | 0% | 2.130 | 0% | 10.000 | +8.65% | +18.15% | 30,724.0 | Drug Manufacturers |
PRIMECAP Management's Historical Top Holdings Breakdowns
PRIMECAP Management's Top Stock Picks
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| Ticker | | Company | Date | Action | Impact % | Price Range | Price | Price Change from Avrg% | Comment | Current Shares | Share Change |
|---|---|---|---|---|---|---|---|---|---|---|---|
AZN | AstraZeneca PLC | 2026-03-31 | New Buy New Buy | +2.83% | 175 ($192.35) 209.48 | $161.42 | -16.08% | New holding | 18,213,708 | 18,213,708 | |
| AZN Unlock Delisted | AstraZeneca PLC | 2026-03-31 | Sold Out Sold Out | -2.57% | 89.94 ($93.4) 96.34 | $191.78 | 105.33% | Sold Out | 0 | -36,915,261 | |
MU | Micron Technology Inc | 2026-03-31 | Reduce Reduce | -0.63% | 312.15 ($391.72) 461.73 | $877.57 | 124.03% | Reduce -11.78% | 21,874,204 | -2,920,732 | |
KLAC | KLA Corp | 2026-03-31 | Reduce Reduce | -0.40% | 127.45 ($146.3) 168.47 | $198.11 | 35.41% | Reduce -15.24% | 24,376,470 | -438,315 | |
QCOM | Qualcomm Inc | 2026-03-31 | Reduce Reduce | -0.21% | 127.07 ($145.96) 182.45 | $167.86 | 15.00% | Reduce -69.82% | 705,587 | -1,632,497 | |
ADBE | Adobe Inc | 2026-03-31 | Add Add | +0.20% | 234.84 ($277.01) 339.04 | $265.21 | -4.26% | Add 28.69% | 4,730,846 | 1,054,640 | |
BA | Boeing Co | 2026-03-31 | Add Add | +0.12% | 189.21 ($227.72) 252.15 | $234.42 | 2.94% | Add 8646.26% | 795,910 | 786,810 | |
GTLB | GitLab Inc | 2026-03-31 | Add Add | +0.10% | 20.35 ($29.21) 38.17 | $38.97 | 33.41% | Add 529.63% | 7,299,050 | 6,139,789 | |
ERIC | Telefonaktiebolaget L M Ericsson | 2026-03-31 | Add Add | +0.10% | 9.34 ($10.83) 11.97 | $10.15 | -6.28% | Add 40.84% | 37,504,013 | 10,874,714 | |
BSX | Boston Scientific Corp | 2026-03-31 | Add Add | +0.07% | 62.75 ($80) 98.65 | $49.31 | -38.36% | Add 4.61% | 32,529,774 | 1,433,590 |
PRIMECAP Management Total Holding History ($B)
PRIMECAP Management's Asset Allocation
PRIMECAP Management Past Portfolios
| Portfolio Date | Number of Stocks | New Stocks | Total Value ($Mil) | Q/Q Turnover |
|---|---|---|---|---|
Top Ranked Articles
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PRIMECAP Management's Hypothetical Growth since 2026-03-31
PRIMECAP Management's Yearly Returns
This information is only displayed for Gurus who publicly disclose audited performance records; most hedge funds and private investment firms do not publish such data or only provide limited historical performance information.
| Year | Portfolio % | % | Excess Gain % |
|---|
PRIMECAP Management's Holdings Heat Map
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PRIMECAP Management's Holdings Bubble Chart
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