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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
BlackRock, Inc.in group BlackRock, Inc.2,529,623$672M0.01%-32,27913F-HRTimelineGroup
VANGUARD GROUP INCgroup of 7 filers holding2,083,896$553M+2,082,669Timeline
FMR LLCin group FMR LLC1,967,088$522M0.03%+309,65813F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson772,314$205M0.1%+19,74713F-HR/ATimelineGroup
Mawer Investment Management Ltd.662,634$176M1.14%-140,96813F-HRTimeline
STATE STREET CORPin group STATE STREET CORP662,141$176M0.01%+3,96713F-HRTimelineGroup
Capital International Investorsin group Capital International Investo…619,479$164M0.04%-54,86413F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding566,522$150M-247,966Timeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC440,723$117M0.01%+29,76013F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP395,428$105M0.02%-11,46413F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.373,274$99.1M0.01%-51,92313F-HRTimelineGroup
Hood River Capital Management LLC372,074$98.8M0.99%-7,30013F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC303,923$80.7M0.06%+3,13113F-HRTimelineGroup
Clark Capital Management Group, Inc.270,420$71.8M0.44%+4,30613F-HRTimeline
Channing Capital Management, LLC266,884$70.9M1.81%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/266,375$70.7M0.01%-19,87813F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/259,545$68.9M0.01%+4,48313F-HRTimeline
PRIMECAP MANAGEMENT CO/CA/244,660$65M0.05%-23,05013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…232,497$61.6M0.08%+69,39313F-HRTimelineGroup
SYSTEMATIC FINANCIAL MANAGEMENT LP219,241$58.2M1.33%-14,01113F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY210,377$55.9M<0.01%-12,52713F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co200,986$53.4M0.01%-1,04713F-HRTimelineGroup
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P191,467$50.8M0.07%-15,97913F-HRTimelineGroup
NEUMEIER POMA INVESTMENT COUNSEL LLC191,430$50.8M4.19%-4,36513F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP188,180$50M0.04%-38,91513F-HRTimelineGroup
Franklin Resourcesgroup of 2 filers holding172,373$45.8M-22,496Timeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO172,754$45.7M<0.01%+7,74513F-HR/ATimelineGroup
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC171,667$45.6M0.15%-19,65913F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP170,855$45.4M0.01%-45313F-HRTimelineGroup
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding161,492$42.9M-27,478Timeline
Driehaus Capital Management LLC117,963$31.3M0.23%-117,80513F-HRTimeline
Swedbank ABin group Swedbank AB117,740$31.3M0.03%+7,32713F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding108,133$28.7M+6,595Timeline
OBERWEIS ASSET MANAGEMENT INC/106,593$28.3M0.84%+5,19313F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC100,377$26.7M0.01%+4,33613F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp98,162$26.1M<0.01%-4,76213F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS97,909$26M0.02%+50,82413F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC94,110$25M0.01%+53,99213F-HR/ATimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…93,754$24.9M<0.01%+43,89313F-HRTimelineGroup
Boston Partnersin group Boston Trust Walden Corp86,529$23M0.02%+9,47113F-HRTimelineGroup
Asset Management One Co., Ltd.83,323$22.1M0.07%+6,76313F-HRTimeline
BROWN ADVISORY INCin group BROWN ADVISORY INC78,254$20.8M0.03%-73,35113F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC75,120$19.9M<0.01%-33,25713F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND71,496$19M0.03%+55,11113F-HRTimeline
Natixis Investment Managersgroup of 2 filers holding65,656$17.4M+65,026Timeline
Nuveen, LLCin group TIAA59,840$15.9M<0.01%-9,31313F-HRTimelineGroup
Public Sector Pension Investment Board55,384$14.7M0.05%+14213F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC50,994$13.5M0.01%+10,66413F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN50,772$13.5M<0.01%-1,15413F-HR/ATimelineGroup
Prospect Capital Advisors, LLC49,485$13.1M7.31%-2,50013F-HR/ATimeline
SEGALL BRYANT & HAMILL, LLC47,909$12.7M0.18%new13F-HR/ATimeline
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …45,750$12.1M0.01%-2,33313F-HRTimelineGroup
AXIOM INVESTORS LLC /DE45,072$12M0.13%-21,73613F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC43,610$11.6M0.01%-13513F-HRTimelineGroup
LORD, ABBETT & CO. LLC43,138$11.5M0.04%-1,59613F-HRTimeline
RHUMBLINE ADVISERS43,058$11.4M0.01%-21413F-HRTimeline
PDT Partners, LLC42,104$11.2M0.66%013F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP39,612$10.5M0.01%-17,69413F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc37,618$9.99M<0.01%-3,83713F-HRTimelineGroup
Robeco Schweiz AGin group Robeco Institutional Asset Ma…36,500$9.69M0.2%+5,95313F-HRTimelineGroup
HRT FINANCIAL LP35,712$9.48M0.02%+17,31313F-HRTimeline
Daiichi Life Insurance Co., Ltd.in group Daiichi Life Insurance Co., L…34,195$9.08M0.26%+10,99713F-HRTimelineGroup
GHP Investment Advisors, Inc.33,209$8.82M0.36%+24713F-HRTimeline
Swiss National Bank31,900$8.47M<0.01%+40013F-HRTimeline
Nicholas Investment Partners, LP31,553$8.38M0.6%-17,06613F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP28,959$7.69M0.01%+11,53213F-HRTimelineGroup
SG Capital Management LLC26,991$7.17M0.59%new13F-HRTimeline
INTRINSIC EDGE CAPITAL MANAGEMENT LLC26,158$6.95M1.26%-5,00013F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A25,161$6.68M0.02%+1,44613F-HRTimelineGroup
LPL Financial LLC24,709$6.56M<0.01%+13113F-HRTimeline
First Eagle Investment Management, LLCin group First Eagle Investment Manage…24,662$6.55M0.01%-1,90213F-HR/ATimelineGroup
Advisors Asset Management, Inc.23,879$6.34M0.11%+1,42613F-HRTimeline
Bridge City Capital, LLC22,582$6M1.66%+1,36113F-HRTimeline
ARGENT CAPITAL MANAGEMENT LLC19,877$5.28M0.17%new13F-HRTimeline
Shannon River Fund Management LLC19,274$5.12M0.98%new13F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC19,113$5.07M<0.01%-32413F-HRTimelineGroup
Stanley-Laman Group, Ltd.18,796$4.99M0.61%-33013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…18,670$4.96M0.01%+3,66313F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\18,438$4.9M<0.01%+2,42413F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO18,316$4.86M<0.01%-1,21413F-HRTimelineGroup
Moody Aldrich Partners LLC18,233$4.84M0.87%-52013F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP17,724$4.71M0.01%-41513F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.18,208$4.64M<0.01%-1,01313F-HRTimeline
Oliver Luxxe Assets LLC16,183$4.3M0.64%-4,11613F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC15,873$4.21M0.01%+92013F-HRTimelineGroup
CHATHAM CAPITAL GROUP, INC.15,692$4.17M0.6%-1,88813F-HRTimeline
Assenagon Asset Management S.A.15,527$4.12M0.01%-2,39013F-HRTimeline
Manatuck Hill Partners, LLC15,300$4.06M1.33%+1,00013F-HRTimeline
Harvest Investment Services, LLC15,231$4.04M0.74%+3,24213F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC14,948$3.97M<0.01%+13,71513F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …14,936$3.97M0.01%-13,42113F-HRTimelineGroup
Moran Wealth Management, LLC14,676$3.9M0.12%+10,41113F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC14,579$3.87M<0.01%-16,78113F-HRTimelineGroup
OAK RIDGE INVESTMENTS LLC13,559$3.6M0.24%+3,80013F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co13,388$3.55M0.01%-87813F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD13,325$3.54M0.01%-46613F-HRTimeline
Creative Planningin group Creative Planning13,306$3.53M<0.01%+2,37613F-HRTimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…13,264$3.52M0.01%+7,78613F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA13,209$3.51M<0.01%-71613F-HRTimelineGroup
Livforsakringsbolaget Skandia, Omsesidi…12,900$3.42M0.13%+1,20013F-HRTimeline
MML INVESTORS SERVICES, LLC12,705$3.37M0.01%-3,09213F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC12,701$3.37M0.01%+1213F-HRTimelineGroup
Waverly Advisors, LLC12,302$3.27M0.02%+11,41313F-HRTimeline
Cetera Investment Advisers12,263$3.26M<0.01%+9013F-HRTimeline
WEDGE CAPITAL MANAGEMENT L L P/NC12,094$3.21M0.06%+61613F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…11,796$3.13M0.01%-80713F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding11,310$3M+7,802Timeline
CANADA PENSION PLAN INVESTMENT BOARD10,460$2.78M<0.01%-10013F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…10,336$2.74M0.01%-63013F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP10,183$2.7M<0.01%new13F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC9,971$2.65M<0.01%-1,07613F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …9,519$2.53M<0.01%+5,87313F-HRTimelineGroup
Cascade Investment Advisors, Inc.9,318$2.47M1.46%-4513F-HRTimeline
NorthCrest Asset Manangement, LLC9,148$2.45M0.08%-1613F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC9,096$2.42M<0.01%-18513F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …8,626$2.27M<0.01%-9,60413F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…8,558$2.27M0.01%-36213F-HRTimelineGroup
WESBANCO BANK INC8,327$2.21M0.06%013F-HRTimeline
Illinois Municipal Retirement Fund8,295$2.2M0.03%-54613F-HRTimeline
HARBOUR INVESTMENTS, INC.8,041$2.14M0.03%-58713F-HRTimeline
Empowered Funds, LLC7,922$2.1M0.01%new13F-HR/ATimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…7,861$2.09M0.01%-72313F-HRTimelineGroup
Legato Capital Management LLC7,769$2.06M0.19%-3,00113F-HRTimeline
State of Alaska, Department of Revenue7,644$2.03M0.02%-50113F-HRTimeline
Erste Asset Management GmbHin group Erste Asset Management GmbH7,485$1.98M0.02%+1,90013F-HRTimelineGroup
Jackson Creek Investment Advisors LLC7,342$1.95M0.57%-31813F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …7,338$1.95M<0.01%-50813F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.7,285$1.93M<0.01%-19413F-HRTimelineGroup
LEVEL FOUR ADVISORY SERVICES, LLCin group LEVEL FOUR ADVISORY SERVICES,…7,040$1.87M0.06%-15313F-HRTimelineGroup
Louisiana State Employees Retirement Sy…6,900$1.83M0.03%-40013F-HRTimeline
Register Financial Advisors LLC6,420$1.7M0.63%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.6,155$1.63M<0.01%-20413F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…6,139$1.63M<0.01%+6,01513F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…5,978$1.59M<0.01%+64313F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC5,898$1.57M0.01%+3,49613F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC5,591$1.48M<0.01%-29,95213F-HRTimelineGroup
KENNEDY CAPITAL MANAGEMENT LLC5,538$1.47M0.03%-5713F-HRTimeline
BLAIR WILLIAM & CO/IL5,493$1.46M<0.01%+3213F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.5,490$1.46M<0.01%+6613F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC5,400$1.43M0.01%-2,04213F-HRTimeline
Atom Investors LP5,280$1.4M0.1%new13F-HRTimeline
Numerai GP LLC5,089$1.35M0.14%-1,29513F-HRTimeline
Wakefield Asset Management LLLPin group Wakefield Asset Management LL…5,080$1.35M0.36%+8213F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP4,900$1.3M<0.01%new13F-HRTimelineGroup
Pasadena Private Wealth, LLC4,829$1.28M0.18%013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC4,778$1.27M<0.01%+26313F-HRTimeline
Concurrent Investment Advisors, LLCin group Concurrent Investment Advisor…4,770$1.27M0.01%+47813F-HRTimelineGroup
Handelsbanken Fonder AB4,765$1.26M<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,718$1.25M<0.01%+1813F-HRTimelineGroup
CSS LLC/IL4,500$1.19M0.07%new13F-HRTimeline
AMALGAMATED BANK4,465$1.19M0.01%-18113F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM4,430$1.18M0.01%-3613F-HRTimeline
Police & Firemen's Retirement System of…4,232$1.12M0.01%-2013F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC4,197$1.11M0.01%-12813F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management4,065$1.08M<0.01%new13F-HRTimelineGroup
BENJAMIN EDWARDS INCin group BENJAMIN EDWARDS INC4,057$1.08M0.01%+16813F-HRTimelineGroup
TEACHERS RETIREMENT SYSTEM OF THE STATE…3,963$1.05M0.01%013F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…3,829$1.02M0.01%-12213F-HRTimeline
SCHRODER INVESTMENT MANAGEMENT GROUP3,724$986K<0.01%-10413F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK3,658$973K<0.01%-15013F-HRTimelineGroup
Lombard Odier Asset Management (USA) Co…3,603$957K0.51%-5,17413F-HRTimeline
KLP KAPITALFORVALTNING AS3,600$956K<0.01%+20013F-HRTimeline
State of Tennessee, Department of Treas…3,584$952K<0.01%013F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND3,542$940K0.01%-6913F-HRTimeline
CWM, LLCin group CWM, LLC3,541$940K<0.01%-10213F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…3,521$935K<0.01%013F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA3,350$889K<0.01%+25213F-HRTimelineGroup
Ameritas Investment Partners, Inc.group of 2 filers holding3,266$867K-90Timeline
Amundiin group Amundi3,241$861K<0.01%+53213F-HRTimelineGroup
Bridgewater Associates, LP3,214$853K<0.01%new13F-HRTimeline
Truvestments Capital LLC3,160$839K0.15%+9713F-HRTimeline
North Star Investment Management Corp.3,100$823K0.05%-40013F-HRTimeline
SG Americas Securities, LLC2,983$792K<0.01%-1,51513F-HRTimeline
HANSEATIC MANAGEMENT SERVICES INC2,968$788K0.75%13F-HRTimeline
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…2,937$780K0.05%-1,92913F-HRTimeline
SteelPeak Wealth, LLC2,891$768K0.02%new13F-HRTimeline
HighTower Advisors, LLC2,749$730K<0.01%-23613F-HRTimeline
Gotham Asset Management, LLC2,645$702K<0.01%-6,11413F-HRTimeline
Quantinno Capital Management LP2,609$693K<0.01%+23613F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC2,539$677K<0.01%+28213F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…2,541$675K<0.01%+19613F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC2,455$652K<0.01%-7513F-HRTimelineGroup
ProShare Advisors LLC2,444$649K<0.01%-70513F-HRTimeline
Brooklyn Investment Group2,326$618K0.02%new13F-HRTimeline
Aquatic Capital Management LLC2,319$616K0.02%new13F-HRTimeline
Caitong International Asset Management …2,291$608K0.11%+2,02213F-HRTimeline
Maryland State Retirement & Pension Sys…2,254$598K0.01%-9313F-HRTimeline
INCEPTIONR LLC2,193$582K0.14%-41813F-HRTimeline
GUIDANCE CAPITAL, INC2,409$565K0.13%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…2,030$539K<0.01%013F-HRTimeline
Pure Financial Advisors, LLC2,011$534K0.01%+313F-HRTimeline
FIL Ltdin group FIL Ltd1,970$523K<0.01%-2,68913F-HRTimelineGroup
Inspire Investing, LLCin group Inspire Investing, LLC1,933$513K0.03%+11513F-HRTimelineGroup
Ashton Thomas Private Wealth, LLC1,825$485K0.01%+10313F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP1,761$480K<0.01%+1,66013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…1,795$477K<0.01%-1513F-HRTimelineGroup
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…1,772$470K0.01%-5213F-HRTimelineGroup
Gateway Wealth Partners, LLC1,760$467K0.02%new13F-HRTimeline
Severin Investments, LLC1,741$462K0.4%-19913F-HRTimeline
RWA WEALTH PARTNERS, LLC1,700$451K<0.01%013F-HRTimeline