---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-112952"
form_type: "8-K"
ticker: "OSIS"
cik: "0001039065"
company_name: "OSI SYSTEMS INC"
filed_at: "2025-11-17T23:59:59+00:00"
generated_at: "2026-05-16T19:04:09.291117+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# OSI Systems announces $400M convertible senior notes offering due 2031

## Summary
- $400M principal amount of convertible senior notes due 2031; initial purchasers can buy up to additional $60M.
- Interest payable semi-annually; maturity Feb 1, 2031; redeemable after Feb 6, 2029 if stock price exceeds 130% of conversion price.
- Concurrently expects to use up to ~$175M of net proceeds to repurchase shares of common stock in privately negotiated transactions.
- Remainder of net proceeds to repay revolving credit facility and for general corporate purposes.
- Notes offered to qualified institutional buyers under Rule 144A; not registered under Securities Act.

## SEC filing metadata
- accession: 0001104659-25-112952
- form_type: 8-K
- ticker: OSIS
- cik: 0001039065
- company_name: OSI SYSTEMS INC
- filed_at: 2025-11-17T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1039065/000110465925112952/0001104659-25-112952-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1039065/000110465925112952/tm2531448d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-112952
- JSON: https://secwatch.observer/filing/0001104659-25-112952.json
- Plain text: https://secwatch.observer/filing/0001104659-25-112952.txt

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