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Disclosery

OSIS OSI SYSTEMS INC

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COM (common), issuer CIK 1039065

356 managers (370 13F filers) reported a position in OSIS shares at 2026-03-31, 18,852,174 shares in all. 41 filers opened a position and 34 filers sold out during the quarter.

Managers
356
13F filers
370
New
41
Added
124
Reduced
143
Sold out
34
Shares held by filers
18,852,174

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Empirical Financial Services, LLC d.b.a…1,697$451K0.01%+33613F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…1,683$447K<0.01%+70313F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC1,661$441K0.01%+813F-HR/ATimeline
Orion Porfolio Solutions, LLC1,637$435K<0.01%-2213F-HRTimeline
PERSONAL CFO SOLUTIONS, LLC1,614$429K0.06%+11813F-HRTimeline
M&T Bank Corpin group M&T Bank Corp1,609$427K<0.01%-713F-HR/ATimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,605$426K0.01%+13013F-HR/ATimelineGroup
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.1,568$416K<0.01%13F-HRTimelineGroup
Premier Fund Managers Ltd1,497$396K0.03%-1,81313F-HRTimeline
XPONANCE LLC1,490$396K<0.01%+20813F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/1,466$389K<0.01%-45513F-HRTimelineGroup
PRAXIS INVESTMENT MANAGEMENT INC1,451$385K0.02%-1,09913F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,375$365K0.01%+42013F-HRTimelineGroup
Tidal Investments LLCin group Tidal Investments LLC1,375$365K<0.01%+2513F-HRTimelineGroup
Cornerstone Investment Partners, LLC1,368$363K0.02%+31413F-HRTimeline
CONTRAVISORY INVESTMENT MANAGEMENT, INC.1,346$357K0.07%-313F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP1,319$350K<0.01%-7513F-HRTimelineGroup
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…1,319$350K<0.01%-2413F-HRTimelineGroup
World Investment Advisors1,279$340K0.01%+3213F-HRTimeline
Sequoia Financial Advisors, LLC1,276$339K<0.01%-24713F-HRTimeline
TWO SIGMA SECURITIES, LLC1,264$336K0.04%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\1,255$333K<0.01%+38313F-HRTimelineGroup
Round Rock Advisors LLC1,243$330K0.05%+3013F-HRTimeline
Atria Investments, Inc1,207$320K<0.01%+17213F-HRTimeline
SBI Okasan Asset Management Co.Ltd.1,200$318K0.01%013F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS1,174$312K<0.01%+16513F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd1,151$306K0.01%-36913F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC1,151$305K<0.01%new13F-HRTimelineGroup
HANCOCK WHITNEY CORP1,057$303K0.01%-37813F-HRTimeline
Farther Finance Advisors, LLC1,143$301K<0.01%+78413F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC1,121$298K<0.01%+7513F-HRTimeline
Farringdon Capital, Ltd.1,118$297K0.07%-17113F-HRTimeline
Abel Hall, LLC1,113$296K0.06%+3913F-HRTimeline
Aigen Investment Management, LP1,111$295K0.08%new13F-HRTimeline
Graham Capital Management, L.P.1,087$289K0.01%-63713F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…1,085$288K<0.01%new13F-HRTimelineGroup
Ensign Peak Advisors, Inc1,073$285K<0.01%013F-HR/ATimeline
Sanctuary Advisors, LLC1,059$281K<0.01%new13F-HRTimeline
HB Wealth Management, LLC1,045$277K<0.01%+6813F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS1,028$273K<0.01%new13F-HRTimelineGroup
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…982$261K0.12%013F-HRTimelineGroup
Liontrust Investment Partners LLP977$259K<0.01%-30613F-HR/ATimeline
Alessandra Capital Management, LLC965$256K0.22%-29413F-HRTimeline
WEDBUSH SECURITIES INC961$255K0.01%+7313F-HRTimeline
Avanza Fonder AB960$255K0.01%+1113F-HRTimeline
Csenge Advisory Group948$252K0.01%+8213F-HRTimeline
CAPTRUST FINANCIAL ADVISORS936$249K<0.01%+1613F-HRTimeline
CIM INVESTMENT MANAGEMENT INC934$248K0.07%013F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC933$248K<0.01%+19213F-HRTimelineGroup
BankChampaign, National Association923$245K0.24%-1513F-HRTimeline
&PARTNERS901$243K<0.01%new13F-HRTimeline
State of Wyoming889$236K0.03%-6913F-HRTimeline
Sowell Financial Services LLC877$233K0.01%+613F-HRTimeline
GREAT LAKES ADVISORS, LLC854$227K<0.01%new13F-HRTimeline
EVERGREEN CAPITAL MANAGEMENT LLC833$221K<0.01%-13213F-HRTimeline
Vestcor Inc830$220K0.01%-1,56813F-HRTimeline
Massar Capital Management, LP825$219K0.04%new13F-HRTimeline
STRS OHIO800$212K<0.01%013F-HRTimeline
RETIREMENT GUYS FORMULA LLC797$212K0.1%new13F-HRTimeline
Pinnacle Wealth Planning Services, Inc.791$210K0.02%+12613F-HRTimeline
CANANDAIGUA NATIONAL CORPin group CANANDAIGUA NATIONAL BANK & T…777$206K0.02%13F-HRTimelineGroup
Themes Management Co LLC773$205K0.13%new13F-HRTimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC769$204K<0.01%-11313F-HRTimelineGroup
Crossmark Global Holdings, Inc.769$204K<0.01%new13F-HRTimeline
New Age Alpha Advisors, LLC742$197K0.01%-813F-HRTimeline
RESOURCES MANAGEMENT CORP /CT/ /ADV700$186K0.02%013F-HRTimeline
KBC Group NVin group KBC Group NV541$144K<0.01%013F-HRTimelineGroup
CENTRAL TRUST Co511$136K<0.01%+113F-HRTimeline
Clearstead Advisors, LLC500$133K<0.01%-16913F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…9,625$128K<0.01%+9,11713F-HRTimeline
Kemnay Advisory Services Inc.415$110K0.02%-5413F-HRTimeline
Steward Partners Investment Advisory, L…400$106K<0.01%-17313F-HRTimeline
GAMMA Investing LLC349$92.7K<0.01%+1913F-HRTimeline
Parkside Financial Bank & Trust320$85K0.01%+3713F-HRTimeline
NISA INVESTMENT ADVISORS, LLC280$74.3K<0.01%+613F-HRTimeline
VEGA INVESTMENT SOLUTIONS233$61.9K0.01%013F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.225$60K<0.01%+13013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Walleye Capital LLCin group Walleye Capital LLC217$57.6K<0.01%new13F-HR/ATimelineGroup
Salomon & Ludwin, LLC197$52.8K<0.01%+6313F-HRTimeline
Keating Financial Advisory Services, In…182$48.3K0.01%+1213F-HRTimeline
RICHARDSON FINANCIAL SERVICES INC.171$45.4K0.03%+213F-HRTimeline
FIRST HORIZON CORP167$44.3K<0.01%-1013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…146$38.8K<0.01%-613F-HRTimeline
SBI Securities Co., Ltd.136$36.1K<0.01%+2613F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC130$34.5K<0.01%-1,68013F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…128$34K<0.01%+3113F-HRTimelineGroup
MCGUIRE CAPITAL ADVISORS INC127$33.7K0.02%013F-HRTimeline
Quantbot Technologies LP120$31.9K<0.01%-3,40213F-HRTimeline
Destiny Wealth Partners, LLC115$30.5K<0.01%new13F-HRTimeline
Sterling Capital Management LLC102$27.1K<0.01%-513F-HRTimeline
GROUP ONE TRADING LLC100$26.6K<0.01%new13F-HRTimeline
Smartleaf Asset Management LLC92$24.4K<0.01%-19713F-HRTimeline
PRIVATE TRUST CO NA91$24.2K<0.01%-3213F-HRTimeline
SouthState Bank Corpin group SouthState Bank Corp90$23.9K<0.01%013F-HRTimelineGroup
UMB Bank, n.a.89$23.6K<0.01%+1013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Medallion Wealth Advisors, LLC84$22.3K0.01%013F-HRTimeline
Abound Wealth Management78$20.7K<0.01%013F-HRTimeline
Arax Advisory Partners76$20.2K<0.01%+113F-HRTimeline
Acumen Wealth Advisors, LLC72$19.1K0.01%-613F-HRTimeline
Clark Wealth Partners69$18.3K0.01%new13F-HRTimeline
LANARK FINANCIAL, INC.69$18.3K<0.01%-713F-HRTimeline
Root Financial Partners, LLC69$18.3K<0.01%+1313F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.63$17K<0.01%+2213F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC58$15.4K<0.01%new13F-HRTimeline
Larson Financial Group LLC52$13.8K<0.01%+313F-HRTimeline
Cedar Mountain Advisors, LLC45$11.9K<0.01%+4413F-HRTimeline
Cherry Tree Wealth Management, LLC40$10.6K<0.01%013F-HRTimeline
ROTHSCHILD INVESTMENT LLC38$10.1K<0.01%+613F-HRTimeline
Accent Capital Management, LLC38$10.1K<0.01%013F-HR/ATimeline
WPG Advisers, LLC37$9.82K0.01%-513F-HRTimeline
Allworth Financial LP34$9.03K<0.01%-413F-HRTimeline
IFP Advisors, Inc33$8.76K<0.01%013F-HRTimeline
Parallel Advisors, LLC33$8.76K<0.01%+413F-HR/ATimeline
Versant Capital Management, Inc33$8.76K<0.01%013F-HRTimeline
Sound Income Strategies, LLC33$8.7K<0.01%013F-HRTimeline
Signature Equity Partners, LLC32$8.5K<0.01%-213F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO31$8.23K<0.01%013F-HRTimelineGroup
Bell Investment Advisors, Inc31$8.23K<0.01%013F-HRTimeline
BROWN, LISLE/CUMMINGS, INC.30$7.96K<0.01%new13F-HRTimeline
Elequin Capital, LP28$7.43K<0.01%-4213F-HRTimeline
Strategic Wealth Partners, Ltd.25$6.64K<0.01%013F-HRTimeline
SIGNATUREFD, LLC23$6.11K<0.01%+1313F-HRTimeline
CVA Family Office, LLC18$4.78K<0.01%new13F-HRTimeline
Essential Partners LLC18$4.78K<0.01%013F-HRTimeline
Cornerstone Planning Group LLC18$4.23K<0.01%013F-HRTimeline
JFS WEALTH ADVISORS, LLC14$3.72K<0.01%013F-HRTimeline
Park Square Financial Group, LLC13$3.45K0.03%-4713F-HRTimeline
MassMutual Private Wealth & Trust, FSB11$2.92K<0.01%+213F-HRTimeline
Fortitude Family Office, LLC11$2.92K<0.01%+613F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…9$2.39K<0.01%-113F-HRTimelineGroup
High Note Wealth, LLC8$2.12K<0.01%-613F-HRTimeline
Aventura Private Wealth, LLC8$2.12K<0.01%013F-HRTimeline
VALLEY NATIONAL ADVISERS INC11$2K<0.01%013F-HRTimeline
MAI Capital Management7$1.86K<0.01%-1713F-HRTimeline
Sunbelt Securities, Inc.6$1.59K<0.01%013F-HRTimeline
Triumph Capital Management6$1.59K<0.01%013F-HRTimeline
Bare Financial Services, Inc6$1.59K<0.01%013F-HRTimeline
True Wealth Design, LLC5$1.33K<0.01%013F-HRTimeline
Ankerstar Wealth, LLC5$1.33K<0.01%013F-HRTimeline
Rossby Financial, LCC5$1.32K<0.01%013F-HRTimeline
Physician Wealth Advisors, Inc.4$1.06K<0.01%013F-HRTimeline
Annis Gardner Whiting Capital Advisors,…4$1.06K<0.01%013F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…4$1.05K<0.01%013F-HRTimeline
SJS Investment Consulting Inc.3$797<0.01%+113F-HRTimeline
DiNuzzo Private Wealth, Inc.3$797<0.01%013F-HRTimeline
Bruce G. Allen Investments, LLC3$797<0.01%013F-HRTimeline
Rialto Wealth Management, LLC2$532<0.01%013F-HRTimeline
GILPIN WEALTH MANAGEMENT, LLC2$532<0.01%+113F-HRTimeline
Hughes Financial Services, LLC2$531<0.01%+113F-HRTimeline
HFM Investment Advisors, LLC2$531<0.01%013F-HRTimeline
Vermillion Wealth Management, Inc.1$266<0.01%new13F-HRTimeline
Prestige Wealth Management Group LLC1$266<0.01%new13F-HRTimeline
TFC Financial Management, Inc.1$266<0.01%013F-HRTimeline
Bay Harbor Wealth Management, LLC1$265<0.01%013F-HRTimeline
Avion Wealth2$00%new13F-HRTimelineValue filed as zero, left out of ratios.
Covestor Ltd0$00%013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.