13F

Stock

Osi Systems Inc

OSIS · held by 407 managers

Reported value

$5.31B

Holders

407

+46 new · −42 exited

Holders’ est. mark

$188.3M

Price effect on 216 books still in the name

Largest holder

$680.4M

BlackRock, Inc.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
BlackRock, Inc.8.23M$680.4M$353.1MAdded$5.57M
Fidelity20.5M$550.6M−$253.6MAdded$120.6M
VANGUARD PORTFOLIO MANAGEMENT LLC1.25M$331.8MHeld
JANUS HENDERSON GROUP PLC772.3K$205.1M$7.86MAdded$13.1M
State Street7.92M$186.9M$18.9MAdded$7.43M
VANGUARD CAPITAL MANAGEMENT LLC699.3K$185.7MHeld
Mawer Investment Management Ltd.662.6K$175.9M$6.92MCut−$29M
Linden Advisors LP114M$175M$5.64MAdded$5.64M
Capital International Investors619.5K$164.5M$6.47MCut−$7.52M
GEODE CAPITAL MANAGEMENT, LLC440.7K$117M$4.3MAdded$12.2M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC430.6K$114.3M$4.5MCut−$12.8M
DIMENSIONAL FUND ADVISORS LP395.4K$105M$4.13MAdded$1.2M
Invesco Ltd.1.37M$100.6M$37.5MCut−$10.8M
Hood River Capital Management LLC372.1K$98.8M$3.89MAdded$2.03M
NEUBERGER BERMAN GROUP LLC303.9K$80.7M$3.02MAdded$3.85M
Clark Capital Management Group, Inc.270.4K$71.8M$2.78MAdded$3.92M
Channing Capital Management, LLC266.9K$70.9MNew
BANK OF AMERICA CORP /DE/266.4K$70.7M$3.94MCut−$2.29M
PRIMECAP MANAGEMENT CO/CA/244.7K$65M$2.56MCut−$3.32M
JPMORGAN CHASE & CO11.6M$63.3M−$4.98MAdded$14.1M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.232.5K$61.6M$1.71MAdded$20.1M
BNP PARIBAS FINANCIAL MARKETS23.2M$61.3M$6.54MAdded$25.8M
Alberta Investment Management Corp40M$61.3M$1.78MAdded$1.78M
SYSTEMATIC FINANCIAL MANAGEMENT LP219.2K$58.2M$2.29MCut−$1.28M
MORGAN STANLEY525.4K$56.3M$353.8KCut−$981.2K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC201K$53.4M$2.1MAdded$1.83M
LOOMIS SAYLES & CO L P191.5K$50.8M$2MCut−$2.07M
NEUMEIER POMA INVESTMENT COUNSEL LLC191.4K$50.8M$2MAdded$887.1K
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC171.7K$45.6M$1.79MCut−$3.22M
NORTHERN TRUST CORP170.9K$45.4M$1.79MAdded$1.67M
Clearbridge Investments, LLC163.6K$43.4M$1.71MCut−$3.79M
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.161.5K$42.9M$1.69MCut−$5.32M
UBS Group AG4.11M$42.2M−$77.4MCut−$38.5M
Boussard & Gavaudan Investment Management LLP20.9K$32.1M$66.9KAdded$17.3M
Driehaus Capital Management LLC118K$31.3M$1.23MCut−$28.8M
Swedbank AB117.7K$31.3M$1.15MAdded$3.1M
VANGUARD FIDUCIARY TRUST CO107.7K$28.6MHeld
OBERWEIS ASSET MANAGEMENT INC/106.6K$28.3M$1.06MAdded$2.44M
PRINCIPAL FINANCIAL GROUP INC102.4K$27.2M$1MAdded$2.75M
ENVESTNET ASSET MANAGEMENT INC100.4K$26.7M$1MAdded$2.15M
Bank of New York Mellon Corp398.2K$26.5M$11.3MCut−$265.3K
AMERIPRISE FINANCIAL INC94.1K$25M$419.4KAdded$14.8M
WELLINGTON MANAGEMENT GROUP LLP93.8K$24.9M$521KAdded$12.2M
Boston Partners86.5K$23M$507.5KAdded$3.03M
Asset Management One Co., Ltd.83.3K$22.1M$53.1KAdded$1.85M
BROWN ADVISORY INC78.3K$20.8M$817.7KCut−$17.9M
GOLDMAN SACHS GROUP INC75.1K$19.9M$785KCut−$7.7M
NEW YORK STATE COMMON RETIREMENT FUND71.5K$19M$171.2KAdded$14.8M
ABSOLUTE INVESTMENT ADVISERS, LLC12M$18.4M$646.5KAdded$646.5K
MIROVA65K$17.3MNew
Nuveen, LLC59.8K$15.9M$625.3KCut−$1.75M
WELLS FARGO & COMPANY/MN1.24M$15.3M$1.12MAdded$989.7K
PUBLIC SECTOR PENSION INVESTMENT BOARD55.4K$14.7M$577.3KAdded$615K
AMERICAN CENTURY COMPANIES INC51K$13.5M$421.4KAdded$3.25M
Prospect Capital Advisors, LLC49.5K$13.1M$517.1KCut−$120.5K
SEGALL BRYANT & HAMILL, LLC47.9K$12.7MNew
ARISTEIA CAPITAL, L.L.C.8M$12.3M$330.8KAdded$1.87M
NORDEA INVESTMENT MANAGEMENT AB45.8K$12.1M$97KCut−$513.8K
AXIOM INVESTORS LLC /DE45.1K$12M$471KCut−$5.07M
MILLENNIUM MANAGEMENT LLC43.6K$11.6M$455.7KAdded$421.3K
RHUMBLINE ADVISERS43.1K$11.4M$450KAdded$395.4K
PDT Partners, LLC42.1K$11.2M$440KAdded$440K
Portman Square Capital LLP7M$10.7M$330.8KAdded$330.8K
Nicholas Investment Partners, LP1.57M$10.7M$3.07KCut−$5.01M
FIRST TRUST ADVISORS LP39.6K$10.5M$413.9KCut−$4.1M
KIM, LLC6.56M$10.1M$311.8KCut−$1.08M
Legal & General Group Plc37.6K$9.99M$393.1KCut−$585.6K
Robeco Schweiz AG36.5K$9.69M$319.2KAdded$1.9M
VOYA INVESTMENT MANAGEMENT LLC4.51M$9.32M$2.18MCut−$29.4M
Dai-ichi Life Insurance Company, Ltd34.2K$9.08M$242.4KAdded$3.16M
GHP Investment Advisors, Inc.33.2K$8.82M$344.5KAdded$410K
Swiss National Bank31.9K$8.47M$329.2KAdded$435.4K
CITIGROUP INC4.2M$7.91M−$9MCut−$1.16M
STIFEL FINANCIAL CORP29K$7.69M$182.1KAdded$3.24M
SG Capital Management LLC27K$7.17MNew
INTRINSIC EDGE CAPITAL MANAGEMENT LLC26.2K$6.95M$273.4KCut−$1M
MACKAY SHIELDS LLC4.53M$6.93M$219.3KAdded$223.9K
CREDIT AGRICOLE S A25.2K$6.68M$247.8KAdded$631.7K
LPL Financial LLC24.7K$6.56M$256.8KAdded$291.6K
First Eagle Investment Management, LLC24.7K$6.55M$257.7KCut−$227.4K
GABELLI FUNDS LLC4.15M$6.36M$184.4KAdded$184.4K
Advisors Asset Management, Inc.23.9K$6.34M$234.6KAdded$613.3K
Bridge City Capital, LLC22.6K$6M$221.8KAdded$583.1K
ARGENT CAPITAL MANAGEMENT LLC19.9K$5.28MNew
Shannon River Fund Management LLC19.3K$5.12MNew
Icahn Capital19.1K$5.07M$199.7KAdded$117.1K
Stanley-Laman Group, Ltd.18.8K$4.99M$196.4KAdded$112.2K
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM18.7K$4.96M$156.8KAdded$1.13M
SSI INVESTMENT MANAGEMENT LLC3.22M$4.93M$156.2KAdded$156.2K
DEUTSCHE BANK AG\18.4K$4.9M$167.3KAdded$810.9K
SEI INVESTMENTS CO18.3K$4.86M$190.7KCut−$119K
Moody Aldrich Partners LLC18.2K$4.84M$190.5KAdded$57.9K
TRUIST FINANCIAL CORP17.7K$4.71M$185.2KAdded$79.4K
ALLIANCEBERNSTEIN L.P.18.2K$4.64M−$0Cut−$258.4K
Oliver Luxxe Assets LLC16.2K$4.3M$169.1KCut−$880.7K
PRUDENTIAL FINANCIAL INC15.9K$4.21M$156.3KAdded$400.5K
CHATHAM CAPITAL GROUP, INC.15.7K$4.17M$164KCut−$317.6K
Assenagon Asset Management S.A.15.5K$4.12M$162.3KCut−$447.3K
Manatuck Hill Partners, LLC15.3K$4.06M$149.4KAdded$414.9K
Harvest Investment Services, LLC15.2K$4.04M$125.3KAdded$986.1K
Citadel14.9K$3.97M$12.9KAdded$3.65M
Universal- Beteiligungs- und Servicegesellschaft mbH14.9K$3.97M$155KCut−$3.27M
VANGUARD ASSET MANAGEMENT, Ltd14.9K$3.95MHeld
Moran Wealth Management, LLC14.7K$3.9M$44.6KAdded$2.81M
BARCLAYS PLC14.6K$3.87M$152.4KCut−$4.13M
OAK RIDGE INVESTMENTS LLC13.6K$3.6M$102KAdded$1.11M
STATE OF WISCONSIN INVESTMENT BOARD13.3K$3.54M$139.2KAdded$20.4K
Creative Planning13.3K$3.53M$114.2KAdded$745.1K
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND13.3K$3.52M$57.2KAdded$2.12M
ROYAL BANK OF CANADA13.2K$3.51M$140.5KCut−$42K
Livforsakringsbolaget Skandia, Omsesidigt12.9K$3.42M$122.6KAdded$440.9K
MML INVESTORS SERVICES, LLC27.7K$3.4M−$248.4KCut−$655.1K
Waverly Advisors, LLC12.3K$3.27M$9.29KAdded$3.04M
Cetera Investment Advisers12.3K$3.26M$127.2KAdded$151.1K
WEDGE CAPITAL MANAGEMENT L L P/NC12.1K$3.21M$119.9KAdded$283.5K
CANADA PENSION PLAN INVESTMENT BOARD10.5K$2.78M$109.3KAdded$83.8K
MARSHALL WACE, LLP10.2K$2.7MNew
RAYMOND JAMES FINANCIAL INC9.97K$2.65M$104.2KCut−$170.2K
BNP PARIBAS ASSET MANAGEMENT Holding S.A.9.52K$2.53M$967.1KAdded$2.53M
Cascade Investment Advisors, Inc.9.32K$2.47M$97.4KAdded$85.9K
NorthCrest Asset Manangement, LLC9.15K$2.45M−$29.9KCut−$34.3K
FRANKLIN RESOURCES INC8.78K$2.33M$91.7KCut−$150.1K
Allspring Global Investments Holdings, LLC8.63K$2.27M$69KCut−$2.39M
MetLife Investment Management, LLC8.56K$2.27M$89.4KCut−$2.9K
WESBANCO BANK INC8.33K$2.21M$87KAdded$87K
Illinois Municipal Retirement Fund8.29K$2.2M$86.7KCut−$52.6K
HARBOUR INVESTMENTS, INC.8.04K$2.14M$84.2KCut−$65.5K
Empowered Funds, LLC7.92K$2.1MNew
State of New Jersey Common Pension Fund D7.86K$2.09M$82.1KCut−$102.3K
Legato Capital Management LLC7.77K$2.06M$81.2KCut−$684.3K
Erste Asset Management GmbH7.49K$1.98M−$30.4KAdded$472.5K
MANUFACTURERS LIFE INSURANCE COMPANY, THE7.34K$1.95M$76.7KCut−$52.9K
D. E. Shaw & Co., Inc.7.29K$1.93M$76.1KAdded$26.6K
LEVEL FOUR ADVISORY SERVICES, LLC7.04K$1.87M$73.6KAdded$34.5K
Louisiana State Employees Retirement System6.9K$1.83M$72.1KCut−$29.9K
SUSQUEHANNA INTERNATIONAL GROUP, LLP6.83K$1.81MNew
Register Financial Advisors LLC6.42K$1.7M$67.1KAdded$67.1K
Vanguard Global Advisers, LLC6.34K$1.68MHeld
OSAIC HOLDINGS, INC.6.16K$1.63M$64.3KAdded$12.3K
FIFTH THIRD BANCORP6.14K$1.63M$1.29KAdded$1.6M
Zurcher Kantonalbank (Zurich Cantonalbank)5.98K$1.59M$55.8KAdded$226.5K
Pathstone Holdings, LLC5.9K$1.57M$25.1KAdded$953.2K
PRINCIPAL SECURITIES, INC.5.72K$1.52M$59.7KAdded$60.8K
KENNEDY CAPITAL MANAGEMENT LLC5.54K$1.47M$57.9KAdded$43.3K
BLAIR WILLIAM & CO/IL5.49K$1.46M$57.1KAdded$65.6K
FEDERATED HERMES, INC.5.49K$1.46M$56.7KAdded$74.2K
INTECH INVESTMENT MANAGEMENT LLC5.4K$1.43M$56.4KCut−$464.4K
Atom Investors LP5.28K$1.4MNew
Numerai GP LLC5.09K$1.35M$53.2KCut−$277.1K
Wakefield Asset Management LLLP5.08K$1.35M$52.2KAdded$74K
TWO SIGMA INVESTMENTS, LP4.9K$1.3MNew
Pasadena Private Wealth, LLC4.83K$1.28M$50.5KAdded$50.5K
VICTORY CAPITAL MANAGEMENT INC4.78K$1.27M$47.2KAdded$117K
Concurrent Investment Advisors, LLC4.77K$1.27M$44.9KAdded$171.8K
PNC Financial Services Group, Inc.4.72K$1.25M$49.1KAdded$53.9K
AGF MANAGEMENT LTD800K$1.23M$38.8KCut−$999.3K
CSS LLC/IL4.5K$1.19MNew
ARIZONA STATE RETIREMENT SYSTEM4.43K$1.18M$46.3KAdded$37.1K
Police & Firemen's Retirement System of New Jersey4.23K$1.12M$44.2KAdded$39.1K
YOUSIF CAPITAL MANAGEMENT, LLC4.2K$1.11M−$94.4KCut−$131.3K
Vanguard Investments Australia, Ltd.4.15K$1.1MHeld
Balyasny Asset Management L.P.4.07K$1.08MNew
BENJAMIN EDWARDS INC4.06K$1.08M$40.6KAdded$85.3K
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS3.83K$1.02M$40KAdded$8.9K
SCHRODER INVESTMENT MANAGEMENT GROUP3.72K$985.8K$6.55KCut−$20.8K
TORONTO DOMINION BANK3.66K$973K$41.2KAdded$3K
Lombard Odier Asset Management (USA) Corp3.6K$956.6K$37.7KCut−$1.28M
KLP KAPITALFORVALTNING AS3.6K$955.8K$35.5KAdded$88.6K
State of Tennessee, Department of Treasury3.58K$951.6K$55.1KAdded$55.1K
OREGON PUBLIC EMPLOYEES RETIREMENT FUND3.54K$940.4K$37KAdded$19.4K
CWM, LLC3.54K$940.2K$939.3KAdded$939.2K
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM3.52K$934.9K$36.8KAdded$36.8K
GLENMEDE TRUST CO NA3.35K$889.5K$32.4KAdded$99.3K
Amundi3.24K$860.5K$28.3KAdded$169.6K
Bridgewater3.21K$853.3KNew
Truvestments Capital LLC3.16K$839K$32KAdded$57.8K
North Star Investment Management Corp.3.1K$823.1K$32.4KCut−$69.6K
HANSEATIC MANAGEMENT SERVICES INC2.97K$788KHeld
ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/2.94K$779.8K$30.7KCut−$461.3K
SteelPeak Wealth, LLC2.89K$767.6KNew
HighTower Advisors, LLC2.75K$729.9K$28.7KCut−$31.5K
Gotham Asset Management, LLC2.65K$702.3K$27.6KCut−$1.53M
Quantinno Capital Management LP2.61K$692.7K$24.8KAdded$87.5K
HSBC HOLDINGS PLC2.54K$676.9K$24KAdded$99.2K
Pictet Asset Management Holding SA2.54K$674.7K$24.5KAdded$76.5K
Mariner, LLC2.46K$651.8K$28.1KAdded$9.06K
ProShare Advisors LLC2.44K$648.9K$25.5KCut−$154.3K
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC2.4K$638.3K$14.9KAdded$274.1K
Brooklyn Investment Group2.33K$617.6KNew
Aquatic Capital Management LLC2.32K$615.7KNew
Caitong International Asset Management Co., Ltd2.29K$608.3K$2.81KAdded$539.7K
Maryland State Retirement & Pension System2.25K$598.5K$23.6KCut−$166
INCEPTIONR LLC2.19K$582.3K$22.9KCut−$83.7K
Kohlberg Kravis Roberts & Co. L.P.375K$575.7K$17.7KAdded$17.7K
GUIDANCE CAPITAL, INC2.41K$565.5KNew
Susquehanna Portfolio Strategies, LLC2.08K$552.3K$21.7KAdded$21.7K
Pure Financial Advisors, LLC2.01K$533.9K$21KAdded$21.8K
Ameritas Advisory Services, LLC1.98K$525.4K$20.7KAdded$11.2K
FIL Ltd1.97K$523.1K$20.6KCut−$665.3K
Inspire Investing, LLC1.93K$513.2K$19KAdded$49.5K
Vanguard Personalized Indexing Management, LLC1.88K$500K$12.8KAdded$187K
Ashton Thomas Private Wealth, LLC1.82K$484.6K$18KAdded$45.3K
JONES FINANCIAL COMPANIES LLLP1.76K$479.6K$1.74KAdded$453.8K
Russell Investments Group, Ltd.1.79K$476.7K$18.9KAdded$15.1K
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC1.77K$470.5K$18.5KAdded$5.25K
Gateway Wealth Partners, LLC1.76K$467.3KNew
Severin Investments, LLC1.74K$462.3K$18.4KCut−$32.4K
RWA WEALTH PARTNERS, LLC1.7K$451.4K$17.8KAdded$17.8K
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management1.7K$450.6K$14.2KAdded$103.4K
Rockefeller Capital Management L.P.1.68K$446.9K$10.2KAdded$196.9K
QUADRANT CAPITAL GROUP LLC1.66K$441K$17.3KAdded$19.4K
Orion Porfolio Solutions, LLC1.64K$434.7K$17.1KAdded$11.5K
PERSONAL CFO SOLUTIONS, LLC1.61K$428.5K$15.6KAdded$47K
M&T Bank Corp1.61K$427.2K$16.6KAdded$14.8K
EverSource Wealth Advisors, LLC1.6K$426.1K$15.4KAdded$49.9K
CIBC Bancorp USA Inc.1.57K$416.3KHeld
XPONANCE LLC1.49K$395.6K$13.4KAdded$68.6K
BANK OF MONTREAL /CAN/1.47K$389.2K$15.3KCut−$100.7K
Tower Research Capital LLC (TRC)1.38K$365.1K$9.98KAdded$121.5K
Tidal Investments LLC1.38K$365.1K$14.1KAdded$20.7K
Cornerstone Investment Partners, LLC1.37K$363.2K$11KAdded$94.4K
CONTRAVISORY INVESTMENT MANAGEMENT, INC.1.35K$357.4K$14.1KAdded$13.3K
Corient Private Wealth LLC1.32K$350.2K$13.8KCut−$5.35K
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO1.32K$350.2K$13.8KAdded$7.66K
VIRTUS ADVISERS, LLC55K$343.4K$12.9KAdded$12.9K
Ameritas Investment Partners, Inc.1.29K$341.7K$13.4KCut−$69
World Investment Advisors1.28K$339.6K$13KAdded$21.5K
Sequoia Financial Advisors, LLC1.28K$338.8K$13.3KCut−$49.7K
TWO SIGMA SECURITIES, LLC1.26K$335.6KNew
US BANCORP \DE\1.25K$333.2K$9.11KAdded$110.8K
Round Rock Advisors LLC1.24K$330K$12.7KAdded$20.6K
Atria Investments, Inc1.21K$320.5K$10.8KAdded$56.5K
SBI Okasan Asset Management Co.Ltd.1.2K$317.7K−$6.54KCut−$6.54K
TEACHER RETIREMENT SYSTEM OF TEXAS1.17K$311.7K$10.5KAdded$54.4K
GAMCO INVESTORS, INC. ET AL200K$306.7KNew
WINTON GROUP Ltd1.15K$305.6K$12KCut−$82.1K
Cerity Partners LLC1.15K$305.5KNew
HANCOCK WHITNEY CORP1.06K$303.3K$33.7KCut−$62.7K
Farther Finance Advisors, LLC1.14K$301.3K$3.06KAdded$209.7K
O'SHAUGHNESSY ASSET MANAGEMENT, LLC1.12K$297.6K$10.9KAdded$30.8K
Farringdon Capital, Ltd.1.12K$296.8K$11.7KCut−$31.9K
Abel Hall, LLC1.11K$295.5K$11.2KAdded$21.6K
Aigen Investment Management, LP1.11K$295KNew
Graham Capital Management, L.P.1.09K$288.6K$11.4KCut−$151.1K
Swiss Life Asset Management Ltd1.08K$288.1KNew
Ensign Peak Advisors, Inc1.07K$284.9K$11.2KAdded$11.2K
Sanctuary Advisors, LLC1.06K$281.1KNew
HB Wealth Management, LLC1.04K$277.5K$10.2KAdded$28.3K
DNB Asset Management AS1.03K$272.9KNew
Liontrust Investment Partners LLP977$259.4K$10.2KCut−$67.8K

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.