Osi SystemsOSIS
13F holders, Q1 2026 (March 31)368holders +10
41new positions
31sold out
6famous investors
$265.35avg. 13F price*
At the end of Q1 2026, 368 institutions reported holding Osi Systems Inc. (OSIS) in their 13F filings, up 10 from Q4 2025. 41 opened new positions and 31 sold out. The largest holders were BlackRock, Inc. ($671.6M), FMR LLC ($522.3M) and Vanguard Portfolio Management LLC ($331.8M). 6 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Ray Dalio (0.0% of Bridgewater Associates's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Osi Systems Inc.
- CUSIP
- 671044105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 41 | $137.1M |
| Exits | 31 | $23.4M |
All 13F filers, Q4 2025 → Q1 2026: 1,377,210 shares bought and 1,287,228 shares sold, net +89,982 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 368 holders
| BlackRock, Inc. | 0.01% | Reduce -1.3% | 2,529,623 | $671.6M |
| FMR LLC | 0.03% | Add +18.7% | 1,967,088 | $522.3M |
| Vanguard Portfolio Management LLC | 0.02% | — | 1,249,748 | $331.8M |
| Janus Henderson Group PLC | 0.10% | Add +2.6% | 772,314 | $205.1M |
| Vanguard Capital Management LLC | 0.00% | — | 699,253 | $185.7M |
| Mawer Investment Management Ltd. | 1.14% | Reduce -17.5% | 662,634 | $175.9M |
| State Street Corp. | 0.01% | Add +0.6% | 662,141 | $175.8M |
| Capital International Investors | 0.04% | Reduce -8.1% | 619,479 | $164.5M |
| Geode Capital Management, LLC | 0.01% | Add +7.2% | 440,723 | $117.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.02% | Reduce -13.6% | 430,561 | $114.3M |
| Dimensional Fund Advisors LP | 0.02% | Reduce -2.8% | 395,428 | $105.0M |
| Invesco Ltd. | 0.01% | Reduce -12.2% | 373,274 | $99.1M |
| Hood River Capital Management LLC | 0.99% | Reduce -1.9% | 372,074 | $98.8M |
| Neuberger Berman Group LLC | 0.06% | Add +1.0% | 303,923 | $80.7M |
| Clark Capital Management Group, Inc. | 0.44% | Add +1.6% | 270,420 | $71.8M |
| Channing Capital Management, LLC | 1.81% | New | 266,884 | $70.9M |
| Bank of America Corp. | 0.01% | Reduce -6.9% | 266,375 | $70.7M |
| T. Rowe Price Associates Inc. | 0.01% | Add +1.8% | 259,545 | $68.9M |
| Primecap Management Co. | 0.05% | Reduce -8.6% | 244,660 | $65.0M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.08% | Add +42.5% | 232,497 | $61.6M |
| Systematic Financial Management LP | 1.33% | Reduce -6.0% | 219,241 | $58.2M |
| Morgan Stanley | 0.00% | Reduce -5.6% | 210,377 | $55.9M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -0.5% | 200,986 | $53.4M |
| Loomis Sayles & Co. L P | 0.07% | Reduce -7.7% | 191,467 | $50.8M |
| Neumeier Poma Investment Counsel LLC | 4.19% | Reduce -2.2% | 191,430 | $50.8M |
| Van Eck Associates Corp. | 0.04% | Reduce -17.1% | 188,180 | $50.0M |
| JPMorgan Chase & Co. | 0.00% | Add +4.7% | 172,754 | $45.7M |
| William Blair Investment Management, LLC | 0.15% | Reduce -10.3% | 171,667 | $45.6M |
| Northern Trust Corp. | 0.01% | Reduce -0.3% | 170,855 | $45.4M |
| Clearbridge Investments, LLC | 0.04% | Reduce -11.6% | 163,598 | $43.4M |
| Nomura Asset Management International Inc. | 0.07% | Reduce -14.5% | 161,492 | $42.9M |
| UBS Group AG | 0.01% | Reduce -57.0% | 135,961 | $36.1M |
| Driehaus Capital Management LLC | 0.23% | Reduce -50.0% | 117,963 | $31.3M |
| Swedbank AB | 0.03% | Add +6.6% | 117,740 | $31.3M |
| Vanguard Fiduciary Trust Co. | 0.01% | — | 107,652 | $28.6M |
| Oberweis Asset Management Inc./ | 0.84% | Add +5.1% | 106,593 | $28.3M |
| Principal Financial Group Inc. | 0.01% | Add +6.9% | 102,417 | $27.2M |
| Envestnet Asset Management Inc. | 0.01% | Add +4.5% | 100,377 | $26.7M |
| Bank of New York Mellon Corp | 0.00% | Reduce -4.6% | 98,162 | $26.1M |
| BNP Paribas Financial Markets | 0.02% | Add +107.9% | 97,909 | $26.0M |
| Ameriprise Financial Inc. | 0.01% | Add +134.6% | 94,110 | $25.0M |
| Wellington Management Group LLP | 0.00% | Add +88.0% | 93,754 | $24.9M |
| Boston Partners | 0.02% | Add +12.3% | 86,529 | $23.0M |
| Asset Management One Co., Ltd. | 0.07% | Add +8.8% | 83,323 | $22.1M |
| Brown Advisory Inc. | 0.03% | Reduce -48.4% | 78,254 | $20.8M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -30.7% | 75,120 | $19.9M |
| New York State Common Retirement Fund | 0.03% | Add +336.4% | 71,496 | $19.0M |
| Mirova | 0.70% | New | 65,007 | $17.3M |
| Nuveen, LLC | 0.00% | Reduce -13.5% | 59,840 | $15.9M |
| Public Sector Pension Investment Board | 0.05% | Add +0.3% | 55,384 | $14.7M |
| American Century Companies Inc. | 0.01% | Add +26.4% | 50,994 | $13.5M |
| Wells Fargo & Company | 0.00% | Reduce -2.2% | 50,772 | $13.5M |
| Prospect Capital Advisors, LLC | 7.31% | Reduce -4.8% | 49,485 | $13.1M |
| Segall Bryant & Hamill, LLC | 0.18% | New | 47,909 | $12.7M |
| Nordea Investment Management AB | 0.01% | Reduce -4.8% | 45,750 | $12.1M |
| Axiom Investors LLC | 0.13% | Reduce -32.5% | 45,072 | $12.0M |
| Millennium Management | 0.01% | Reduce -0.3% | 43,610 | $11.6M |
| Lord, Abbett & Co. LLC | 0.04% | Reduce -3.6% | 43,138 | $11.5M |
| Rhumbline Advisers | 0.01% | Reduce -0.5% | 43,058 | $11.4M |
| PDT Partners, LLC | 0.66% | No change | 42,104 | $11.2M |
| First Trust Advisors LP | 0.01% | Reduce -30.9% | 39,612 | $10.5M |
| Legal & General Group Plc | 0.00% | Reduce -9.3% | 37,618 | $10.0M |
| Robeco Schweiz AG | 0.20% | Add +19.5% | 36,500 | $9.7M |
| HRT Financial LP | 0.02% | Add +94.1% | 35,712 | $9.5M |
| Daiichi Life Insurance Co., Ltd. | 0.26% | Add +47.4% | 34,195 | $9.1M |
| GHP Investment Advisors, Inc. | 0.36% | Add +0.8% | 33,209 | $8.8M |
| Swiss National Bank | 0.00% | Add +1.3% | 31,900 | $8.5M |
| Nicholas Investment Partners, LP | 0.69% | Reduce -35.1% | 31,553 | $8.4M |
| Stifel Financial Corp. | 0.01% | Add +66.2% | 28,959 | $7.7M |
| SG Capital Management LLC | 0.59% | New | 26,991 | $7.2M |
| Intrinsic Edge Capital Management LLC | 1.26% | Reduce -16.1% | 26,158 | $6.9M |
| Credit Agricole S A | 0.02% | Add +6.1% | 25,161 | $6.7M |
| LPL Financial LLC | 0.00% | Add +0.5% | 24,709 | $6.6M |
| First Eagle Investment Management, LLC | 0.01% | Reduce -7.2% | 24,662 | $6.5M |
| Advisors Asset Management, Inc. | 0.11% | Add +6.3% | 23,879 | $6.3M |
| Bridge City Capital, LLC | 1.66% | Add +6.4% | 22,582 | $6.0M |
| Argent Capital Management LLC | 0.17% | New | 19,877 | $5.3M |
| Shannon River Fund Management LLC | 0.98% | New | 19,274 | $5.1M |
| AQR Capital Management | 0.00% | Reduce -1.7% | 19,113 | $5.1M |
| Stanley-Laman Group, Ltd. | 0.61% | Reduce -1.7% | 18,796 | $5.0M |
| California State Teachers Retirement System | 0.01% | Add +24.4% | 18,670 | $5.0M |
| Deutsche Bank AG | 0.00% | Add +15.1% | 18,438 | $4.9M |
| Sei Investments Co. | 0.00% | Reduce -6.2% | 18,316 | $4.9M |
| Moody Aldrich Partners LLC | 0.87% | Reduce -2.8% | 18,233 | $4.8M |
| Truist Financial Corp. | 0.01% | Reduce -2.3% | 17,724 | $4.7M |
| Alliancebernstein L.P. | 0.00% | Reduce -5.3% | 18,208 | $4.6M |
| Oliver Luxxe Assets LLC | 0.64% | Reduce -20.3% | 16,183 | $4.3M |
| Prudential Financial Inc. | 0.01% | Add +6.2% | 15,873 | $4.2M |
| Chatham Capital Group, Inc. | 0.60% | Reduce -10.7% | 15,692 | $4.2M |
| Assenagon Asset Management S.A. | 0.01% | Reduce -13.3% | 15,527 | $4.1M |
| Manatuck Hill Partners, LLC | 1.33% | Add +7.0% | 15,300 | $4.1M |
| Harvest Investment Services, LLC | 0.74% | Add +27.0% | 15,231 | $4.0M |
| Citadel Advisors | 0.00% | Add +1112.3% | 14,948 | $4.0M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | Reduce -47.3% | 14,936 | $4.0M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 14,873 | $3.9M |
| Moran Wealth Management, LLC | 0.12% | Add +244.1% | 14,676 | $3.9M |
| Barclays PLC | 0.00% | Reduce -53.5% | 14,579 | $3.9M |
| Oak Ridge Investments LLC | 0.24% | Add +38.9% | 13,559 | $3.6M |
| CANADA LIFE ASSURANCE Co | 0.01% | Reduce -6.2% | 13,388 | $3.6M |
| State of Wisconsin Investment Board | 0.01% | Reduce -3.4% | 13,325 | $3.5M |
"% of holder's portfolio" is OSIS's weight in each manager's 13F, not the share of Osi Systems Inc. the manager owns.