---
schema_version: "secwatch.filing_event.v1"
accession: "0001157523-21-001074"
form_type: "8-K"
ticker: "OSIS"
cik: "0001039065"
company_name: "OSI SYSTEMS INC"
filed_at: "2021-08-18T23:59:59+00:00"
generated_at: "2026-06-29T09:05:55.971026+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# OSI Systems posts record Q4 revenue $332M, EPS $1.40; backlog soars to $1.076B

## Summary
- Record Q4 revenue of $332.2M (+20% YoY); record GAAP EPS $1.40 and non-GAAP EPS $1.54 (+26% YoY).
- Full-year fiscal 2021 revenue $1.147B (-2% YoY); GAAP EPS $4.03 vs $4.05; non-GAAP EPS $5.32 vs $4.60.
- Backlog at June 30, 2021 was $1.076B, up 25% from $861M a year ago.
- Security division Q4 revenue +23% YoY; Optoelectronics & Manufacturing Q4 revenue +37% YoY.
- FY2022 guidance: revenue $1.190B-$1.225B; non-GAAP EPS $5.72-$6.00.

## SEC filing metadata
- accession: 0001157523-21-001074
- form_type: 8-K
- ticker: OSIS
- cik: 0001039065
- company_name: OSI SYSTEMS INC
- filed_at: 2021-08-18T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1039065/000115752321001074/0001157523-21-001074-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1039065/000115752321001074/a52478536.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001157523-21-001074
- JSON: https://secwatch.observer/filing/0001157523-21-001074.json
- Plain text: https://secwatch.observer/filing/0001157523-21-001074.txt

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