OSI SYSTEMS INC OSIS
CIK 0001039065 · CUSIP 671044105
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $624.16M 2,504,256 shares | 0.01% | -452(0.00%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $525.29M 2,107,576 shares | 0.01% | -4.76K(-0.20%)Reduced | SEC filing ↗ Nov 7, 2025 | ▾ |
| 03 | FMR LLC CIK 315066 · View history | $271.74M 1,090,269 shares | 0.01% | -100.41K(-8.40%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 04 | JANUS HENDERSON GROUP PLC CIK 1274173 · View history | $249.31M 1,000,291 shares | 0.11% | -52.44K(-5.00%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 05 | Mawer Investment Management Ltd. CIK 1538449 · View history | $213.44M 856,383 shares | 1.11% | +343.73K(+67.00%)Added | SEC filing ↗ Nov 4, 2025 | ▾ |
| 06 | Capital International Investors CIK 1562230 · View history | $168.07M 674,343 shares | 0.03% | 0(0.00%)Unchanged | SEC filing ↗ Nov 13, 2025 | ▾ |
| 07 | STATE STREET CORP CIK 93751 · View history | $165.97M 665,892 shares | 0.01% | -416(-0.10%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 08 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC CIK 861177 · View history | $137.21M 550,503 shares | 0.03% | -25.25K(-4.40%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 09 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $104.53M 419,469 shares | 0.02% | -29.94K(-6.70%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 10 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $98.28M 394,271 shares | 0.01% | +13.14K(+3.40%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 11 | Hood River Capital Management LLC CIK 1578177 · View history | $92.52M 371,228 shares | 1.09% | -5.83K(-1.50%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 12 | Invesco Ltd. CIK 914208 · View history | $87.59M 351,410 shares | 0.01% | +32.15K(+10.10%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 13 | UBS Group AG CIK 1610520 · View history | $78.84M 316,334 shares | 0.02% | +123.21K(+63.80%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 14 | PRIMECAP MANAGEMENT CO/CA/ CIK 763212 · View history | $76.42M 306,630 shares | 0.06% | -14.79K(-4.60%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 15 | NEUBERGER BERMAN GROUP LLC CIK 1465109 · View history | $75.61M 303,995 shares | 0.06% | -3.97K(-1.30%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 16 | BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history | $68.67M 275,530 shares | 0.01% | -40.76K(-12.90%)Reduced | SEC filing ↗ Feb 3, 2026 | ▾ |
| 17 | MORGAN STANLEY CIK 895421 · Amended · View history | $65.20M 261,591 shares | 0.00% | +41.88K(+19.10%)Added | SEC filing ↗ May 27, 2026 | ▾ |
| 18 | Clark Capital Management Group, Inc. CIK 1352187 · View history | $64.67M 259,451 shares | 0.41% | +8.40K(+3.30%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 19 | SYSTEMATIC FINANCIAL MANAGEMENT LP CIK 1085936 · View history | $63.96M 256,622 shares | 1.56% | -6.03K(-2.30%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 20 | PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history | $61.05M 244,918 shares | 0.01% | +190.81K(+352.60%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
Showing 20 / 349 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
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