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Portfolio (Quarterly) Guide ↗

PRIMECAP MANAGEMENT CO/CA/

· CIK 0000763212
13F Portfolio $127.0B AUM 320 positions Filed May 11, 2026 EDGAR ↗ ← All Funds
Q1 2026 Q4 2025 · All 9 New 66 Added 125 Reduced 8 Exited
Page 4 of 7  ·  125 positions
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
61 QCOM QUALCOMM INC Technology 705,587.0 $90.9M 0.07% -1.6M -69.8% $128.78 +69.1%
62 STX SEAGATE TECHNOLOGY HLDNGS PL Technology 230,332.0 $90.2M 0.07% -154K -40.1% $391.76 +123.8%
63 ALKS ALKERMES PLC Healthcare 2,539,990.0 $89.8M 0.07% -24K -0.9% $35.36 +20.1%
64 MAR MARRIOTT INTL INC NEW Consumer Cyclical 259,160.0 $84.8M 0.07% -5K -2.0% $327.07 +19.7%
65 RVTY REVVITY INC Healthcare 867,030.0 $76.0M 0.06% -371K -30.0% $87.61 +14.5%
66 COF CAPITAL ONE FINL CORP Financial Services 379,650.0 $69.3M 0.06% -3K -0.9% $182.43 -1.1%
67 CSX CSX CORP Industrials 1,634,900.0 $67.1M 0.05% -557K -25.4% $41.05 +14.8%
68 NBIX NEUROCRINE BIOSCIENCES INC Healthcare 496,340.0 $65.4M 0.05% -11K -2.2% $131.74 +23.8%
69 OSIS OSI SYSTEMS INC Technology 244,660.0 $65.0M 0.05% -23K -8.6% $265.51 -20.7%
70 ACLS AXCELIS TECHNOLOGIES INC Technology 658,652.0 $61.3M 0.05% -6K -0.9% $93.08 +66.3%
71 CPRI CAPRI HOLDINGS LIMITED Consumer Cyclical 3,462,035.0 $61.0M 0.05% -445K -11.4% $17.62 +10.0%
72 LYFT LYFT INC Technology 4,223,630.0 $56.2M 0.04% -98K -2.3% $13.30 +5.4%
73 RYANAIR HOLDINGS PLC 912,972.0 $52.8M 0.04% -74K -7.5% $57.80
74 UNH UNITEDHEALTH GROUP INC Healthcare 186,521.0 $50.5M 0.04% -7K -3.6% $270.59 +50.3%
75 KNX KNIGHT-SWIFT TRANSN HLDGS IN Industrials 869,677.0 $50.1M 0.04% -10K -1.1% $57.58 +40.2%
76 CRM SALESFORCE INC Technology 259,450.0 $48.4M 0.04% -9K -3.4% $186.67 -2.2%
77 XOM EXXON MOBIL CORP Energy 249,726.0 $42.4M 0.03% -16K -6.0% $169.66 -10.6%
78 AUR AURORA INNOVATION INC Technology 9,806,110.0 $40.4M 0.03% -397K -3.9% $4.12 +51.9%
79 PERIMETER SOLUTIONS INC 1,634,800.0 $39.9M 0.03% -9K -0.6% $24.42
80 TW TRADEWEB MKTS INC Financial Services 328,082.0 $38.6M 0.03% -92K -21.9% $117.66 -16.5%
Page 4 of 7  ·  125 positions

Period Price is the implied market price on the last day of the reporting period, calculated as reported value ÷ shares held. It is not the fund's purchase price or cost basis — the fund may have initiated or added to the position at any point during the quarter at a different price. Since Period shows the price change from that quarter-end snapshot to today's last price — it reflects stock movement after the report date, not the fund's actual return.

Sector Allocation
Technology 31.7%
Healthcare 24.9%
Industrials 12.1%
Consumer Cyclical 10.8%
Financial Services 8.6%
Communication Services 7.3%
Energy 2.0%
Consumer Defensive 1.4%
Basic Materials 1.1%
Real Estate 0.1%