OSI SYSTEMS INC (OSIS): Institutional Ownership
Hedge funds and institutional managers reporting a position in OSIS · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
15
13F filers
Aggregate Value
$75.1M
Across holders
Last Price
$218.29
2026-06-26
Sector
Information Technology
GICS
Holder activity10 new1 added4 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| PRIMECAP MANAGEMENT CO/CA/ CIK 0000763212 | Institutional Manager | 245K | $65.0M | 86.5% | 0.1% | Reduced | $-6.1M | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 6K | $1.5M | 2.0% | 0.0% | New | — | Q1 2026 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 6K | $1.4M | 1.9% | 0.0% | New | — | Q4 2025 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 5K | $1.3M | 1.7% | 0.0% | Added | +$611K | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 5K | $1.3M | 1.7% | 0.0% | New | — | Q1 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 4K | $1.0M | 1.4% | 0.0% | New | — | Q1 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 3K | $853K | 1.1% | 0.0% | New | — | Q1 2026 |
| GAMCO INVESTORS, INC. ET AL CIK 0000807249 | Institutional Manager | 4K | $801K | 1.1% | 0.0% | New | — | Q2 2025 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 3K | $702K | 0.9% | 0.0% | Reduced | $-1.6M | Q1 2026 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 2K | $450K | 0.6% | 0.0% | New | — | Q2 2025 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 1K | $374K | 0.5% | 0.0% | New | — | Q3 2025 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 1K | $353K | 0.5% | 0.0% | New | — | Q3 2025 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 217 | $58K | 0.1% | 0.0% | New | — | Q1 2026 |
| First Eagle Investment Management, LLC CIK 0001325447 | Institutional Manager | 16 | $4K | 0.0% | 0.0% | Reduced | $-7.0M | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 2 | $531 | 0.0% | 0.0% | Reduced | $-5K | Q1 2026 |
Reduced
Institutional Manager
$65.0M· 86.5% of total· 0.1% port· 245K sh· $-6.1M QoQ· Q1 2026
New
Hedge Fund
$1.5M· 2.0% of total· 0.0% port· 6K sh· — QoQ· Q1 2026
New
Hedge Fund
$1.4M· 1.9% of total· 0.0% port· 6K sh· — QoQ· Q4 2025
Added
Hedge Fund
$1.3M· 1.7% of total· 0.0% port· 5K sh· +$611K QoQ· Q1 2026
New
Hedge Fund
$1.3M· 1.7% of total· 0.0% port· 5K sh· — QoQ· Q1 2026
New
Hedge Fund
$1.0M· 1.4% of total· 0.0% port· 4K sh· — QoQ· Q1 2026
New
Hedge Fund
$853K· 1.1% of total· 0.0% port· 3K sh· — QoQ· Q1 2026
New
Institutional Manager
$801K· 1.1% of total· 0.0% port· 4K sh· — QoQ· Q2 2025
Reduced
Hedge Fund
$702K· 0.9% of total· 0.0% port· 3K sh· $-1.6M QoQ· Q1 2026
New
Hedge Fund
$450K· 0.6% of total· 0.0% port· 2K sh· — QoQ· Q2 2025
New
Hedge Fund
$374K· 0.5% of total· 0.0% port· 1K sh· — QoQ· Q3 2025
New
Hedge Fund
$353K· 0.5% of total· 0.0% port· 1K sh· — QoQ· Q3 2025
New
Hedge Fund
$58K· 0.1% of total· 0.0% port· 217 sh· — QoQ· Q1 2026
Reduced
Institutional Manager
$4K· 0.0% of total· 0.0% port· 16 sh· $-7.0M QoQ· Q1 2026
Reduced
Hedge Fund
$531· 0.0% of total· 0.0% port· 2 sh· $-5K QoQ· Q1 2026