Quick Takeaways
- PRIMECAP MANAGEMENT CO/CA/ filed SCHEDULE 13G for Glaukos Corporation COM (GKOS).
- Disclosed ownership: 5.9%.
- Date of event: 31 Dec 2025.
PRIMECAP MANAGEMENT CO/CA/ - 31 Dec 2025 SCHEDULE 13G Report for Glaukos Corporation COM (GKOS)
- Filing Manager
- PRIMECAP MANAGEMENT CO/CA/
- Reporting Manager
- PRIMECAP MANAGEMENT CO/CA/
- Security
- Glaukos Corporation COM
- Symbol
- GKOS
- Shares outstanding
- 57,430,748 shares
- Disclosed Ownership
- 3,376,928 shares
- Ownership
- 5.9%
- Form type
- SCHEDULE 13G
- Filing time
- 11 Feb 2026, 12:55:08 UTC
- Date of event
- 31 Dec 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"PRIMECAP MANAGEMENT CO/CA/ disclosed 5.9% ownership in Glaukos Corporation COM (GKOS) on 31 Dec 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 11 Feb 2026, 12:55.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| PRIMECAP MANAGEMENT CO/CA/ | 5.9% | 3,376,928 | 3,374,178 | 0 | Jorge Antonio Rodriguez | Deputy Chief Compliance Officer |