7 institutions reported holding $759,109 of OSI SYSTEMS INC COM (OSIS) in SEC 13F filings for 2026-06-30. Largest institutional holders: Assenagon Asset Management S.A. ($622,202), HARBOR INVESTMENT ADVISORY, LLC ($68,016), GAMMA Investing LLC ($52,925), Cedar Mountain Advisors, LLC ($9,623), Versant Capital Management, Inc ($6,124). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Assenagon Asset Management S.A. | $622,202 | 2,845 | Trimmed |
| 2 | HARBOR INVESTMENT ADVISORY, LLC | $68,016 | 311 | New |
| 3 | GAMMA Investing LLC | $52,925 | 242 | Trimmed |
| 4 | Cedar Mountain Advisors, LLC | $9,623 | 44 | Trimmed |
| 5 | Versant Capital Management, Inc | $6,124 | 28 | Trimmed |
| 6 | MassMutual Private Wealth & Trust, FSB | $219 | 1 | Trimmed |
| 7 | CANANDAIGUA NATIONAL BANK & TRUST CO | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30