13F value (AUM)
$169.1B
Primecap Management
PRIMECAP MANAGEMENT CO/CA
$169.1B
13F long value · 2026-Q2Positions324
CategoryAsset Manager
Quarters tracked8
▲ #75 of 581 by 13F value
Size rank 9/10
10 NEW19 ADD4 2×+17 TRIM3 NEAR EXIT2 EXIT
Snapshot
Primecap Management's 13F portfolio at a glance — size, concentration and this quarter's activity.
Positions
324 (24 unmapped)
Top 100 weight
90.5%
Quarters tracked
8
Latest 13F filed
Aug 14, 2026
New positions
10
Exits / near-exits
5
13F value by quarter
Total reported long value each quarter — fund flows plus market moves.
Top holdings — 2026-Q2
The fund's largest reported positions. The 100 shown cover 90.5% of the portfolio.
| Ticker | Issuer | Weight | Value | Shares | Since 2026-Q2 |
|---|---|---|---|---|---|
| MU | MICRON TECHNOLOGY INC | 13.1% | $22.2B | 19.2M | -54.6% |
| LLY | ELI LILLY & CO | 6.5% | $11.0B | 9.2M | -27.6% |
| INTC | INTEL CORP | 6.2% | $10.5B | 75.3M | -12.3% |
| KLAC | KLA CORP | 3.7% | $6.2B | 20.5M | +529.7% |
| GOOGL | ALPHABET INC | 3.1% | $5.3B | 14.9M | -3.9% |
| — | FLEX LTD | 2.2% | $3.8B | 23.4M | — |
| — | ASTRAZENECA PLC | 2.0% | $3.4B | 18.1M | — |
| NVDA | NVIDIA CORPORATION | 2.0% | $3.4B | 17.1M | +18.2% |
| BIIB | BIOGEN INC | 1.9% | $3.3B | 15.2M | -16.4% |
| AMZN | AMAZON COM INC | 1.7% | $2.9B | 12.0M | +5.3% |
| MSFT | MICROSOFT CORP | 1.6% | $2.7B | 7.1M | +38.0% |
| TSLA | TESLA INC | 1.5% | $2.6B | 6.1M | -11.7% |
| FDX | FEDEX CORP | 1.5% | $2.6B | 8.2M | +23.9% |
| TXN | TEXAS INSTRS INC | 1.5% | $2.5B | 8.5M | -0.6% |
| LUV | SOUTHWEST AIRLS CO | 1.5% | $2.5B | 48.8M | -25.7% |
Quarterly changes — 2026-Q2
What Primecap Management opened, added, trimmed and exited this quarter, largest dollar moves first.
| Action | Ticker | Issuer | Prev shares | Curr shares | Change | Value Δ |
|---|---|---|---|---|---|---|
| ADD | AAL | AMERICAN AIRLINES GROUP INC | 49.0M | 70.7M | +44.4% | +$752.0M |
| NEW | FDXF | FEDEX FGHT HLDG CO INC | — | 4.0M | — | +$611.3M |
| ADD | ILMN | ILLUMINA INC | 2.1M | 3.5M | +70.0% | +$363.2M |
| NEW | SPCX | SPACE EXPLORATION TECHN CORP | — | 1.4M | — | +$240.5M |
| 2×+ | MRSH | MARSH & MCLENNAN COS INC | 717.5K | 2.1M | +199.0% | +$233.1M |
| NEW | — | CARNIVAL CORP LTD | — | 5.4M | — | +$153.2M |
| EXIT | CCL | CARNIVAL CORP | 5.4M | 0 | -100.0% | -$138.8M |
| NEAR EXIT | GS | GOLDMAN SACHS GROUP INC | 153.6K | 1.1K | -99.3% | -$128.8M |
| ADD | FICO | FAIR ISAAC CORP | 289.0K | 362.8K | +25.5% | +$124.9M |
| TRIM | DOW | DOW HLDGS INC | 4.4M | 2.3M | -48.3% | -$119.8M |
Conviction over time
Portfolio weight of the current top long holdings, quarter by quarter — rising weight = growing conviction.