Significant Ownership of PRIMECAP MANAGEMENT CO/CA/
- Large-stake filing summary
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- Recent SEC Schedule 13D/G filings for PRIMECAP MANAGEMENT CO/CA/ focus on large-stake beneficial ownership disclosures and amendments.
- Use this view to spot new large holders, amended positions, and activist-style ownership evidence.
- Manager signature
- Jorge A. Rodriguez - Deputy Chief Compliance Officer
- Manager location
- Pasadena, CA
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Significant Ownership of PRIMECAP MANAGEMENT CO/CA/
| Sym | Company | Class | Ownership | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|---|
| XNCR | Xencor, Inc. | COM | 15% | $98,219,914 | 10,527,322 | PRIMECAP MANAGEMENT CO/CA/ | 30 Jun 2025 | ||
| XMTR | Xometry, Inc. | COM | 13% | $274,434,748 | +$34,331,928 | 6,495,497 | +14% | PRIMECAP MANAGEMENT CO/CA/ | 31 Mar 2026 |
| LUNG | Pulmonx Corporation | COM | 12% | $8,029,839 | -$742,073 | 4,956,691 | -8.5% | PRIMECAP MANAGEMENT CO/CA/ | 30 Sep 2025 |
| AAL | American Airlines Group Inc. | COM | 10% | $879,359,449 | +$248,410,404 | 69,186,424 | +39% | PRIMECAP MANAGEMENT CO/CA/ | 31 May 2026 |
| MAT | Mattel, Inc. | COM | 10% | $667,768,717 | 33,238,861 | PRIMECAP MANAGEMENT CO/CA/ | 30 Jun 2025 | ||
| BIIB | Biogen Inc. | COM | 10% | $2,094,853,956 | 14,954,697 | PRIMECAP MANAGEMENT CO/CA/ | 30 Sep 2025 | ||
| LUV | Southwest Airlines Co. | COM | 9.6% | $1,862,069,222 | 47,069,495 | PRIMECAP MANAGEMENT CO/CA/ | 31 Mar 2026 | ||
| ELAN | Elanco Animal Health Incorporated | COM | 9.2% | $1,046,090,616 | 45,840,956 | PRIMECAP MANAGEMENT CO/CA/ | 31 Mar 2026 | ||
| MKTX | MarketAxess Holdings Inc. | COM | 8.5% | $575,545,781 | +$171,250,438 | 3,175,425 | +42% | PRIMECAP MANAGEMENT CO/CA/ | 31 Dec 2025 |
| BMRN | BioMarin Pharmaceutical Inc. | COM | 8.2% | $906,812,938 | 15,795,383 | PRIMECAP MANAGEMENT CO/CA/ | 30 Jun 2025 | ||
| FLEX | Flex Ltd. | COM | 7.9% | $1,716,507,816 | -$234,798,094 | 29,610,278 | -12% | PRIMECAP MANAGEMENT CO/CA/ | 30 Sep 2025 |
| LIVN | LivaNova PLC | COM | 7.7% | $273,009,936 | -$34,197,421 | 4,224,852 | -11% | PRIMECAP MANAGEMENT CO/CA/ | 31 Dec 2025 |
| IMCR | Immunocore Holdings plc - ADR | ADR | 7.5% | $130,443,852 | +$38,165,393 | 3,772,234 | +41% | PRIMECAP MANAGEMENT CO/CA/ | 30 Jun 2025 |
| ACM | AECOM | COM | 7.2% | $1,096,432,703 | -$206,075,541 | 9,580,852 | -16% | PRIMECAP MANAGEMENT CO/CA/ | 30 Jun 2025 |
| GKOS | Glaukos Corporation | COM | 5.9% | $381,288,940 | 3,376,928 | PRIMECAP MANAGEMENT CO/CA/ | 31 Dec 2025 | ||
| WHR | Whirlpool Corporation | COM | 5.8% | $211,707,256 | -$3,938,747 | 3,746,368 | -1.8% | PRIMECAP MANAGEMENT CO/CA/ | 31 Mar 2026 |
| RYTM | RHYTHM PHARMACEUTICALS, INC. | COM | 5.2% | $345,849,272 | -$77,964,170 | 3,478,669 | -18% | PRIMECAP MANAGEMENT CO/CA/ | 31 Dec 2025 |
| FDX | FedEx Corporation | COM | 5% | $2,523,575,700 | 11,931,800 | PRIMECAP MANAGEMENT CO/CA/ | 31 Mar 2025 | ||
| UAL | United Airlines Holdings, Inc. | COM | 4.9% | $1,874,596,447 | -$336,284,875 | 15,978,490 | -15% | PRIMECAP MANAGEMENT CO/CA/ | 31 Dec 2025 |
| NTAP | NetApp, Inc. | COM | 4.8% | $1,140,776,315 | -$306,845,043 | 9,630,055 | -21% | PRIMECAP MANAGEMENT CO/CA/ | 30 Sep 2025 |
| NFE | New Fortress Energy Inc. | COM | 4.8% | $75,124,212 | 13,042,398 | PRIMECAP MANAGEMENT CO/CA/ | 31 Mar 2025 | ||
| RJF | Raymond James Financial, Inc. | COM | 4.7% | $1,315,230,182 | 9,718,689 | PRIMECAP MANAGEMENT CO/CA/ | 31 Mar 2025 | ||
| GRAL | GRAIL, Inc. | COM | 4.7% | $184,052,268 | -$21,862,340 | 1,838,684 | -11% | PRIMECAP MANAGEMENT CO/CA/ | 31 Dec 2025 |
| NXT | Nextpower Inc. | COM | 4.7% | $644,969,170 | 6,951,597 | PRIMECAP MANAGEMENT CO/CA/ | 31 Dec 2025 | ||
| FGEN | FibroGen, Inc. | COM | 4.6% | $1,523,323 | 4,616,130 | PRIMECAP MANAGEMENT CO/CA/ | 31 Dec 2024 | ||
| WOLF | Wolfspeed, Inc. | COM | 4.3% | $23,128,487 | 6,665,270 | PRIMECAP MANAGEMENT CO/CA/ | 31 Mar 2025 | ||
| RIG | Transocean Ltd. | COM | 1.5% | $37,542,425 | 13,126,722 | PRIMECAP MANAGEMENT CO/CA/ | 30 Jun 2025 |
Schedules 13D/G Reported by PRIMECAP MANAGEMENT CO/CA/:
| Sym | Target | Class | Ownership | Change | Current shares | Change | Value | Reporting name | Form | Report period | Filing date |
|---|
Schedule rows are parsed from SEC 13D/G filings. Open the linked filing or target page to verify the reported ownership and shares.