PRIMECAP MANAGEMENT CO/CA/ — 13F Holdings & Portfolio
CIK 763212 · latest 13F-HR filed 2026-08-14
PRIMECAP MANAGEMENT CO/CA/ manages $169.11B in 13F-reported U.S. long-equity assets across 324 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are MU (13.12%), LLY (6.51%), INTC (6.21%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 13 new positions, exited 9, added to 181, and trimmed 89.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
11TH FLOOR
PASADENA, CA 91105
$169.11B
Long-equity book
324
Distinct positions
2026-06-30
Filed 2026-08-14
+13 / −9 / ↑181 / ↓89
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- MICRON TECHNOLOGY INC$14.79B +200.2%
- INTEL CORP$7.16B +214.3%
- KLA CORP$2.61B +72.6%
- ELI LILLY & CO$2.52B +29.7%
- FLEX LTD$2.12B +127.8%
Top Trims
- AMGEN INC-$675.5M -21.6%
- ALIBABA GROUP HLDG LTD-$562.6M -24.0%
- FEDEX CORP-$403.2M -13.6%
- CONOCOPHILLIPS-$323.7M -21.2%
- INTUIT-$173.5M -37.5%
New Positions
- FEDEX FGHT HLDG CO INC$611.3M
- SPACE EXPLORATION TECHN CORP$240.5M
- CARNIVAL CORP LTD$153.2M
- DUPONT DE NEMOURS INC$70.7M
- DEVON ENERGY CORP NEW$64.9M
Exited Positions
- CARNIVAL CORP$138.8M
- HONEYWELL INTL INC$110.3M
- DUPONT DE NEMOURS INC$91.5M
- COTERRA ENERGY INC$80.5M
- FIFTH THIRD BANCORP$9.1M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | MICRON TECHNOLOGY INC | MU | 595112103 | $22.18B | 13.12% | 19,217,236 | SH |
| 2 | ELI LILLY & CO | LLY | 532457108 | $11.00B | 6.51% | 9,172,904 | SH |
| 3 | INTEL CORP | INTC | 458140100 | $10.51B | 6.21% | 75,250,958 | SH |
| 4 | KLA CORP | KLAC | 482480100 | $6.20B | 3.66% | 20,536,730 | SH |
| 5 | ALPHABET INC | GOOGL | 02079K305 | $5.31B | 3.14% | 14,859,769 | SH |
| 6 | FLEX LTD | FLEX | Y2573F102 | $3.79B | 2.24% | 23,358,875 | SH |
| 7 | ASTRAZENECA PLC | AZN | G0593M107 | $3.43B | 2.03% | 18,095,178 | SH |
| 8 | NVIDIA CORPORATION | NVDA | 67066G104 | $3.42B | 2.02% | 17,079,180 | SH |
| 9 | BIOGEN INC | BIIB | 09062X103 | $3.27B | 1.94% | 15,154,606 | SH |
| 10 | AMAZON COM INC | AMZN | 023135106 | $2.85B | 1.69% | 11,962,188 | SH |
| 11 | MICROSOFT CORP | MSFT | 594918104 | $2.66B | 1.58% | 7,140,870 | SH |
| 12 | TESLA INC | TSLA | 88160R101 | $2.57B | 1.52% | 6,103,030 | SH |
| 13 | FEDEX CORP | FDX | 31428X106 | $2.55B | 1.51% | 8,156,799 | SH |
| 14 | TEXAS INSTRS INC | TXN | 882508104 | $2.54B | 1.50% | 8,514,989 | SH |
| 15 | SOUTHWEST AIRLS CO | LUV | 844741108 | $2.51B | 1.48% | 48,797,725 | SH |
| 16 | AMGEN INC | AMGN | 031162100 | $2.45B | 1.45% | 6,756,962 | SH |
| 17 | SCHWAB CHARLES CORP | SCHW | 808513105 | $2.32B | 1.37% | 25,120,895 | SH |
| 18 | UNITED AIRLS HLDGS INC | UAL | 910047109 | $2.24B | 1.32% | 16,461,630 | SH |
| 19 | BOSTON SCIENTIFIC CORP | BSX | 101137107 | $2.16B | 1.28% | 50,520,914 | SH |
| 20 | ROSS STORES INC | ROST | 778296103 | $1.94B | 1.15% | 9,104,980 | SH |
| 21 | ALPHABET INC | GOOG | 02079K107 | $1.91B | 1.13% | 5,399,060 | SH |
| 22 | ALIBABA GROUP HLDG LTD | BABA | 01609W102 | $1.79B | 1.06% | 18,611,306 | SH |
| 23 | DELTA AIR LINES INC | DAL | 247361702 | $1.64B | 0.97% | 17,521,167 | SH |
| 24 | VISA INC | V | 92826C839 | $1.46B | 0.87% | 4,268,491 | SH |
| 25 | BRISTOL-MYERS SQUIBB CO | BMY | 110122108 | $1.44B | 0.85% | 24,923,900 | SH |
| 26 | TJX COS INC NEW | TJX | 872540109 | $1.44B | 0.85% | 9,476,020 | SH |
| 27 | BEONE MEDICINES LTD | ONC | 07725L102 | $1.43B | 0.84% | 5,007,931 | SH |
| 28 | RAYMOND JAMES FINL INC | RJF | 754730109 | $1.41B | 0.83% | 9,242,552 | SH |
| 29 | NETAPP INC | NTAP | 64110D104 | $1.40B | 0.83% | 9,016,690 | SH |
| 30 | GSK PLC | GSK | 37733W204 | $1.32B | 0.78% | 25,182,068 | SH |
| 31 | AMERICAN AIRLINES GROUP INC | AAL | 02376R102 | $1.28B | 0.76% | 70,732,954 | SH |
| 32 | BAIDU INC | BIDU | 056752108 | $1.26B | 0.74% | 11,010,100 | SH |
| 33 | ANALOG DEVICES INC | ADI | 032654105 | $1.24B | 0.73% | 3,128,329 | SH |
| 34 | JABIL INC | JBL | 466313103 | $1.22B | 0.72% | 3,167,120 | SH |
| 35 | CONOCOPHILLIPS | COP | 20825C104 | $1.20B | 0.71% | 11,588,365 | SH |
| 36 | SONY GROUP CORP | SONY | 835699307 | $1.20B | 0.71% | 59,603,230 | SH |
| 37 | ELANCO ANIMAL HEALTH INC | ELAN | 28414H103 | $1.12B | 0.66% | 45,445,012 | SH |
| 38 | JPMORGAN CHASE & CO | JPM | 46625H100 | $1.11B | 0.65% | 3,382,627 | SH |
| 39 | ADOBE INC | ADBE | 00724F101 | $1.07B | 0.63% | 5,227,139 | SH |
| 40 | NORTHERN TR CORP | NTRS | 665859104 | $1.06B | 0.63% | 6,100,742 | SH |
| 41 | CORNING INC | GLW | 219350105 | $1.06B | 0.62% | 4,131,872 | SH |
| 42 | NOVARTIS AG | NVS | 66987V109 | $1.03B | 0.61% | 6,592,124 | SH |
| 43 | THERMO FISHER SCIENTIFIC INC | TMO | 883556102 | $993.8M | 0.59% | 1,982,271 | SH |
| 44 | CATERPILLAR INC | CAT | 149123101 | $928.3M | 0.55% | 871,700 | SH |
| 45 | MARVELL TECHNOLOGY INC | MRVL | 573874104 | $821.6M | 0.49% | 2,757,995 | SH |
| 46 | BIOMARIN PHARMACEUTICAL INC | BMRN | 09061G101 | $812.0M | 0.48% | 14,190,183 | SH |
| 47 | NEXTPOWER INC | NXT | 65290E101 | $796.9M | 0.47% | 6,688,767 | SH |
| 48 | ORACLE CORP | ORCL | 68389X105 | $789.4M | 0.47% | 5,386,230 | SH |
| 49 | HEWLETT PACKARD ENTERPRISE C | HPE | 42824C109 | $773.2M | 0.46% | 17,140,875 | SH |
| 50 | APPLIED MATLS INC | AMAT | 038222105 | $754.0M | 0.45% | 1,042,926 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $169.11B | 324 | 0000763212-26-000028 |
| 2026-03-31 | 2026-05-11 | $127.01B | 320 | 0000763212-26-000016 |
| 2025-12-31 | 2026-02-11 | $132.11B | 319 | 0000763212-26-000012 |
| 2025-09-30 | 2025-11-12 | $130.57B | 327 | 0000763212-25-000005 |