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 | $671.64M 2,529,623 shares | 0.01% | -32.28K(-1.30%)Reduced | SEC filing ↗ May 13, 2026 | ▾ |
| 02 | FMR LLC CIK 315066 · View history | $522.28M 1,967,088 shares | 0.03% | +309.66K(+18.70%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 03 | VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history | $331.82M 1,249,748 shares | 0.02% | — | SEC filing ↗ May 8, 2026 | ▾ |
| 04 | JANUS HENDERSON GROUP PLC CIK 1274173 · Amended · View history | $205.06M 772,314 shares | 0.10% | +19.75K(+2.60%)Added | SEC filing ↗ May 18, 2026 | ▾ |
| 05 | VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history | $185.66M 699,253 shares | 0.00% | — | SEC filing ↗ May 15, 2026 | ▾ |
| 06 | Mawer Investment Management Ltd. CIK 1538449 · View history | $175.94M 662,634 shares | 1.14% | -140.97K(-17.50%)Reduced | SEC filing ↗ May 6, 2026 | ▾ |
| 07 | STATE STREET CORP CIK 93751 · View history | $175.81M 662,141 shares | 0.01% | +3.97K(+0.60%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 08 | Capital International Investors CIK 1562230 · View history | $164.48M 619,479 shares | 0.04% | -54.86K(-8.10%)Reduced | SEC filing ↗ May 13, 2026 | ▾ |
| 09 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $117.03M 440,723 shares | 0.01% | +29.76K(+7.20%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 10 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC CIK 861177 · View history | $114.32M 430,561 shares | 0.02% | -67.69K(-13.60%)Reduced | SEC filing ↗ May 13, 2026 | ▾ |
| 11 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $104.99M 395,428 shares | 0.02% | -11.46K(-2.80%)Reduced | SEC filing ↗ May 7, 2026 | ▾ |
| 12 | Invesco Ltd. CIK 914208 · Amended · View history | $99.11M 373,274 shares | 0.01% | -51.92K(-12.20%)Reduced | SEC filing ↗ May 12, 2026 | ▾ |
| 13 | Hood River Capital Management LLC CIK 1578177 · View history | $98.79M 372,074 shares | 0.99% | -7.30K(-1.90%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 14 | NEUBERGER BERMAN GROUP LLC CIK 1465109 · Amended · View history | $80.68M 303,923 shares | 0.06% | +3.13K(+1.00%)Added | SEC filing ↗ Oct 27, 2026 | ▾ |
| 15 | Clark Capital Management Group, Inc. CIK 1352187 · View history | $71.80M 270,420 shares | 0.44% | +4.31K(+1.60%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 16 | Channing Capital Management, LLC CIK 1302404 · View history | $70.86M 266,884 shares | 1.81% | +266.88KNew | SEC filing ↗ May 14, 2026 | ▾ |
| 17 | BANK OF AMERICA CORP /DE/ CIK 70858 · View history | $70.73M 266,375 shares | 0.01% | -19.88K(-6.90%)Reduced | SEC filing ↗ May 18, 2026 | ▾ |
| 18 | PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history | $68.91M 259,545 shares | 0.01% | +4.48K(+1.80%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 19 | PRIMECAP MANAGEMENT CO/CA/ CIK 763212 · View history | $64.96M 244,660 shares | 0.05% | -23.05K(-8.60%)Reduced | SEC filing ↗ May 11, 2026 | ▾ |
| 20 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. CIK 1705339 · View history | $61.60M 232,497 shares | 0.08% | +69.39K(+42.50%)Added | SEC filing ↗ May 15, 2026 | ▾ |
Showing 20 / 372 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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