---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-25-005999"
form_type: "8-K"
ticker: "GKOS"
cik: "0001192448"
company_name: "GLAUKOS Corp"
filed_at: "2025-04-30T23:59:59+00:00"
generated_at: "2026-05-23T02:01:44.062121+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Glaukos Q1 net sales record $106.7M (+25% YoY); net loss narrows to $0.32/sh from $0.82

## Summary
- Record Q1 net sales $106.7M, up 25% reported and 26% constant currency vs $85.6M last year.
- U.S. Glaucoma sales $59.1M (+41% YoY); total Glaucoma $88.1M (+31% YoY).
- GAAP net loss $18.1M ($0.32/sh) vs $40.8M ($0.82/sh) in Q1 2024; non-GAAP net loss $12.6M ($0.22).
- Gross margin ~77%; non-GAAP gross margin ~82%; operating loss improved to $20.7M from $39.1M.
- Reaffirmed FY 2025 net sales guidance of $475M-$485M; cash $303.4M with no debt.

## SEC filing metadata
- accession: 0001558370-25-005999
- form_type: 8-K
- ticker: GKOS
- cik: 0001192448
- company_name: GLAUKOS Corp
- filed_at: 2025-04-30T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1192448/000155837025005999/0001558370-25-005999-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1192448/000155837025005999/gkos-20250430x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-25-005999
- JSON: https://secwatch.observer/filing/0001558370-25-005999.json
- Plain text: https://secwatch.observer/filing/0001558370-25-005999.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.