---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-23-001767"
form_type: "8-K"
ticker: "GKOS"
cik: "0001192448"
company_name: "GLAUKOS Corp"
filed_at: "2023-02-22T23:59:59+00:00"
generated_at: "2026-06-19T04:15:00.903650+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Glaukos Q4 net sales $71.2M, down 3% YoY; full-year net loss $99.2M; guides 2023 sales $290-295M

## Summary
- Q4 net sales $71.2M (-3% YoY); glaucoma $52.9M, corneal health $18.3M.
- Q4 GAAP net loss $31.5M ($0.66/sh); non-GAAP net loss $25.1M ($0.53/sh).
- Full-year 2022 net sales $282.9M (-4% YoY); net loss $99.2M ($2.09/sh).
- 2023 net sales guidance $290M-$295M; cash & equivalents $360M.
- R&D expenses rose 34% in Q4 to $35.8M; SG&A up 9% to $51.9M.

## SEC filing metadata
- accession: 0001558370-23-001767
- form_type: 8-K
- ticker: GKOS
- cik: 0001192448
- company_name: GLAUKOS Corp
- filed_at: 2023-02-22T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1192448/000155837023001767/0001558370-23-001767-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1192448/000155837023001767/gkos-20230222x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-23-001767
- JSON: https://secwatch.observer/filing/0001558370-23-001767.json
- Plain text: https://secwatch.observer/filing/0001558370-23-001767.txt

## Key facts
- Earnings Releases
  GLAUKOS Corp reported fiscal year 2023 results: revenue $290 million to $295 million. Guidance initiated.
  - Period: fiscal year 2023
  - Revenue: $290 million to $295 million
  - Guidance: initiated
  - Result: guidance update
  source text: The company expects 2023 net sales to be in the range of $290 million to $295 million based on the latest foreign currency exchange rates.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1192448/000155837023001767/0001558370-23-001767-index.htm
- Earnings Releases
  GLAUKOS Corp reported fourth quarter ended December 31, 2022 results: revenue $71.2 million, net income $31.5 million, EPS ($0.66) per diluted share.
  - Period: fourth quarter ended December 31, 2022
  - Revenue: $71.2 million
  - Net income: $31.5 million
  - EPS: ($0.66) per diluted share
  - Result: reported results
  source text: Net sales in the fourth quarter of 2022 of $71.2 million declined 3% on a reported basis, or were flat on a constant currency basis, compared to $73.2 million in the same period in 2021.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1192448/000155837023001767/0001558370-23-001767-index.htm
- Earnings Releases
  GLAUKOS Corp reported fiscal year ended December 31, 2022 results: revenue $282.9 million, net income $99.2 million, EPS ($2.09) per diluted share.
  - Period: fiscal year ended December 31, 2022
  - Revenue: $282.9 million
  - Net income: $99.2 million
  - EPS: ($2.09) per diluted share
  - Result: reported results
  source text: Net sales in 2022 of $282.9 million declined 4% on a reported basis, or 2% on a constant currency basis, compared to $294.0 million in 2021.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1192448/000155837023001767/0001558370-23-001767-index.htm

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