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OSIS

Osi Systems Inc
$218.29 +7.22 (+3.42%) At close · Jul 15
Market Cap
$3.58B
Shares
16,482,890

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 376
Total Value: $4,703,477,813
Total Shares: 17,756,308
Showing 1–100 of 385 holdings by value · page 1 of 4

Institutional Ownership Trend

26 quarters

Superinvestors Holding OSIS

All superinvestors →
Ray Dalio $853,349 Joel Greenblatt $702,273

Holder Concentration

Across 373 13F filers
Top Holder
14.2%
Jun 2023 → Mar 2026 · range 13.0% – 17.5%
of institutional value
Top 5
37.2%
Jun 2023 → Mar 2026 · range 37.2% – 50.3%
of institutional value
Top 10
51.5%
Jun 2023 → Mar 2026 · range 51.5% – 62.6%
of institutional value
HHI
458
Jun 2023 → Mar 2026 · range 458 – 685
Broadly held
Showing 100 of 385
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $671,640,194 14.28% 2,529,623
Mega FMR LLC $522,281,533 11.10% 1,967,088
Mega JANUS HENDERSON GROUP PLC $205,057,089 4.36% 772,314
Mega VANGUARD CAPITAL MANAGEMENT LLC $185,658,664 3.95% 699,253
Large Mawer Investment Management Ltd. $175,935,953 3.74% 662,634
Mega STATE STREET CORP $175,805,056 3.74% 662,141
Mega Capital International Investors $164,477,869 3.50% 619,479
Mega GEODE CAPITAL MANAGEMENT, LLC $117,016,363 2.49% 440,723
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $114,318,247 2.43% 430,561
Mega DIMENSIONAL FUND ADVISORS LP $104,990,086 2.23% 395,428
Mega Invesco Ltd. $99,107,978 2.11% 373,274
Mid Hood River Capital Management LLC $98,789,367 2.10% 372,074
Mega NEUBERGER BERMAN GROUP LLC $80,694,595 1.72% 303,923
Large Clark Capital Management Group, Inc. $71,799,214 1.53% 270,420
Mid Channing Capital Management, LLC $70,860,370 1.51% 266,884
Mega BANK OF AMERICA CORP /DE/ Bank $70,725,223 1.50% 266,375
Mega PRICE T ROWE ASSOCIATES INC /MD/ $68,911,792 1.47% 259,545
Mega PRIMECAP MANAGEMENT CO/CA/ $64,959,676 1.38% 244,660
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $61,730,278 1.31% 232,497
Mid SYSTEMATIC FINANCIAL MANAGEMENT LP $58,210,677 1.24% 219,241
Mega MORGAN STANLEY $55,857,193 1.19% 210,377
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $53,363,792 1.13% 200,986
Large LOOMIS SAYLES & CO L P $50,836,402 1.08% 191,467
Mid NEUMEIER POMA INVESTMENT COUNSEL LLC $50,826,579 1.08% 191,430
Mega VAN ECK ASSOCIATES CORP $49,963,671 1.06% 188,180
Mega JPMORGAN CHASE & CO $45,867,911 0.98% 172,754
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $45,579,305 0.97% 171,667
Mega NORTHERN TRUST CORP Bank $45,363,708 0.96% 170,855
Mega Clearbridge Investments, LLC $43,436,904 0.92% 163,598
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $42,877,740 0.91% 161,492
Mega UBS Group AG $36,099,003 0.77% 135,961
Large Driehaus Capital Management LLC $31,320,356 0.67% 117,963
Mega VANGUARD FIDUCIARY TRUST CO Bank $28,582,682 0.61% 107,652
Mid OBERWEIS ASSET MANAGEMENT INC/ $28,301,507 0.60% 106,593
Mega PRINCIPAL FINANCIAL GROUP INC $27,192,737 0.58% 102,417
Mega ENVESTNET ASSET MANAGEMENT INC $26,651,097 0.57% 100,377
Mega Bank of New York Mellon Corp Bank $26,062,989 0.55% 98,162
Mega BNP PARIBAS ARBITRAGE, SA $25,995,818 0.55% 97,909
Mega Swedbank AB Bank $25,402,005 0.54% 116,150
Mega AMERIPRISE FINANCIAL INC $24,987,145 0.53% 94,110
Mega WELLINGTON MANAGEMENT GROUP LLP $24,892,623 0.53% 93,754
Large Boston Partners $22,974,313 0.49% 86,529
Large Asset Management One Co., Ltd. $22,123,089 0.47% 83,323
Large BROWN ADVISORY INC $20,777,219 0.44% 78,254
Mega GOLDMAN SACHS GROUP INC $19,945,109 0.42% 75,120
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $18,982,902 0.40% 71,496
Mid MIROVA $17,260,008 0.37% 65,007
Small INTRINSIC EDGE CAPITAL MANAGEMENT LLC $15,930,600 0.34% 60,000
Mega Nuveen, LLC $15,888,117 0.34% 59,840
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $15,160,621 0.32% 57,100
Large Public Sector Pension Investment Board Pension $14,705,005 0.31% 55,384
Mega AMERICAN CENTURY COMPANIES INC $13,539,416 0.29% 50,994
Mega WELLS FARGO & COMPANY/MN $13,480,472 0.29% 50,772
Small Prospect Capital Advisors, LLC $13,138,762 0.28% 49,485
Mid SEGALL BRYANT & HAMILL, LLC $12,720,318 0.27% 47,909
Mega NORDEA INVESTMENT MANAGEMENT AB $12,147,081 0.26% 45,750
Mid AXIOM INVESTORS LLC /DE $11,967,066 0.25% 45,072
Mega MILLENNIUM MANAGEMENT LLC $11,578,891 0.25% 43,610
Large LORD, ABBETT & CO. LLC $11,453,570 0.24% 43,138
Mega RHUMBLINE ADVISERS $11,432,329 0.24% 43,058
Mid PDT Partners, LLC $11,179,033 0.24% 42,104
Mega FIRST TRUST ADVISORS LP $10,517,382 0.22% 39,612
Mega Legal & General Group Plc $9,987,954 0.21% 37,618
Mid Robeco Schweiz AG $9,691,115 0.21% 36,500
Large HRT FINANCIAL LP $9,481,893 0.20% 35,712
Mid Dai-ichi Life Insurance Company, Ltd Insurance $9,079,114 0.19% 34,195
Mid GHP Investment Advisors, Inc. $8,817,321 0.19% 33,209
Mega Swiss National Bank Bank $8,469,769 0.18% 31,900
Mid Nicholas Investment Partners, LP $8,377,637 0.18% 31,553
Large STIFEL FINANCIAL CORP $7,688,903 0.16% 28,959
Mid SG Capital Management LLC $7,166,380 0.15% 26,991
Small INTRINSIC EDGE CAPITAL MANAGEMENT LLC $6,945,210 0.15% 26,158
Mega JANE STREET GROUP, LLC $6,850,158 0.15% 25,800
Large CREDIT AGRICOLE S A $6,680,496 0.14% 25,161
Mega LPL Financial LLC $6,560,486 0.14% 24,709
Large First Eagle Investment Management, LLC $6,548,007 0.14% 24,662
Mid Advisors Asset Management, Inc. $6,340,113 0.13% 23,879
Small Bridge City Capital, LLC $5,995,746 0.13% 22,582
Small Shannon River Fund Management LLC $5,117,439 0.11% 19,274
Mega AQR CAPITAL MANAGEMENT LLC $5,074,690 0.11% 19,113
Small Stanley-Laman Group, Ltd. $4,990,525 0.11% 18,796
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $4,957,071 0.11% 18,670
Mega DEUTSCHE BANK AG\ Bank $4,895,473 0.10% 18,438
Large SEI INVESTMENTS CO $4,863,080 0.10% 18,316
Mega ALLIANCEBERNSTEIN L.P. $4,834,406 0.10% 18,208
Large TRUIST FINANCIAL CORP $4,705,899 0.10% 17,724
Large PRUDENTIAL FINANCIAL INC $4,214,440 0.09% 15,873
Small Manatuck Hill Partners, LLC $4,062,303 0.09% 15,300
Small Harvest Investment Services, LLC $4,043,982 0.09% 15,231
Mega CITADEL ADVISORS LLC $3,968,843 0.08% 14,948
Large Universal- Beteiligungs- und Servicegesellschaft mbH $3,965,657 0.08% 14,936
Mega VANGUARD ASSET MANAGEMENT, Ltd $3,948,930 0.08% 14,873
Mid Moran Wealth Management, LLC $3,896,624 0.08% 14,676
Mega BARCLAYS PLC $3,870,869 0.08% 14,579
Mid OAK RIDGE INVESTMENTS LLC $3,600,050 0.08% 13,559
Small CHATHAM CAPITAL GROUP, INC. $3,587,773 0.08% 16,405
Small Moody Aldrich Partners LLC $3,579,681 0.08% 16,368
Large CANADA LIFE ASSURANCE Co Insurance $3,554,647 0.08% 13,388
Large STATE OF WISCONSIN INVESTMENT BOARD $3,537,920 0.08% 13,325
Large Creative Planning $3,532,876 0.08% 13,306
Key facts CIK 1039065 CUSIP 671044105 13F (30d) 27 filings 27 filers Visit website Investor relations

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