Key facts
- JANUS HENDERSON GROUP PLC filed SCHEDULE 13G/A for OSI SYSTEMS, INC. Common Stock (OSIS).
- Disclosed ownership: 4.7%.
- Date of event: 31 Mar 2026.
JANUS HENDERSON GROUP PLC - 31 Mar 2026 SCHEDULE 13G/A Report for OSI SYSTEMS, INC. Common Stock (OSIS)
- Filing Manager
- JANUS HENDERSON GROUP PLC
- Reporting Manager
- JANUS HENDERSON GROUP PLC
- Security
- OSI SYSTEMS, INC. Common Stock
- Symbol
- OSIS
- Shares outstanding
- 16,432,213 shares
- Disclosed Ownership
- 772,314 shares
- Ownership
- 4.7%
- Form type
- SCHEDULE 13G/A
- Filing time
- 15 May 2026, 11:23:46 UTC
- Date of event
- 31 Mar 2026
- Previous filing
- 14 Nov 2025
- SEC
- View on sec.gov
Key filing fact
JANUS HENDERSON GROUP PLC disclosed 4.7% ownership in OSI SYSTEMS, INC. Common Stock (OSIS) on 31 Mar 2026.
Change
- Previous schedule filing date: 14 Nov 2025.
- Current filing was accepted on 15 May 2026, 11:23.
Research use
- 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.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Reporting managers (1)
Names, ownership, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| JANUS HENDERSON GROUP PLC | 4.7% | 772,314 | 0 | 772,314 | Kristin Mariani | Head of North America Compliance |
CIK / CUSIP context first