OSI SYSTEMS INC - OSIS
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Mar 27, 2026 | SCHEDULE 13G/A | The Vanguard Group | 0.0% | 0 | View |
| Feb 11, 2026 | SCHEDULE 13G/A | Mawer Investment Management Ltd. | 4.73% | 803,602 | View |
| Jan 08, 2026 | SCHEDULE 13G/A | FMR LLC | 10.0% | 1,703,860 | View |
| Jan 08, 2026 | SCHEDULE 13G/A | Abigail P. Johnson | 10.0% | 1,703,860 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | JANUS HENDERSON GROUP PLC | 5.9% | 1,000,291 | View |
| Nov 12, 2025 | SCHEDULE 13G | Mawer Investment Management Ltd. | 5.09% | 856,383 | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.