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OSI Systems Inc (OSIS)

CUSIP: 671044105 | NYSE | Technology · Electronic Components | Mid Cap | 1048 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
CompareDetailedHistoricalFundsOptions13D/13GPeersTargetingTrading SummaryProfile

Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13G/ABlackRock, Inc.2,429,56215.2%New 5%+ stakeSep 30, 202692d ahead of 13F (2,552,027 sh) · −122,465
13G/AFMR LLC1,070,7386.7%−713,478Sep 30, 202692d ahead of 13F (1,738,166 sh) · −667,428
13GHenderson Group PLC905,9255.5%New 5%+ stakeJun 30, 202691d ahead of 13F (772,314 sh) · +133,611
13G/ABlackRock, Inc.2,429,562
15.2% of class · Sep 30, 2026New 5%+ stake
92d ahead of 13F (2,552,027 sh) · −122,465
13G/AFMR LLC1,070,738
6.7% of class · Sep 30, 2026−713,478
92d ahead of 13F (1,738,166 sh) · −667,428
13GHenderson Group PLC905,925
5.5% of class · Jun 30, 2026New 5%+ stake
91d ahead of 13F (772,314 sh) · +133,611

Institutional Holders — Q3 2026

Dimensional Fund Advisors LP440,281
0.0% of portfolio›$85.6M
Channing Capital Management, LLC414,703
2.1% of portfolio›$80.6M
Bank of New York Mellon Corp98,033
0.0% of portfolio›$19.1M
Swedbank AB81,000
0.0% of portfolio›$15.7M
Principal Financial Group Inc75,116
0.0% of portfolio›$14.6M
Robeco Schweiz AG60,500
0.2% of portfolio›$11.8M
Asset Management One Co., Ltd.57,960
0.0% of portfolio›$11.3M
Bridge City Capital, LLC37,978
1.5% of portfolio›$7.4M
GHP Investment Advisors, Inc.34,872
0.3% of portfolio›$6.8M
Stanley-Laman Group, Ltd.18,382
0.4% of portfolio›$3.6M
Chatham Capital Group, Inc.17,490
0.4% of portfolio›$3.4M
OAK Ridge Investments LLC17,387
0.2% of portfolio›$3.4M
Moody Aldrich Partners LLC17,047
0.6% of portfolio›$3.3M
Creative Planning16,332
0.0% of portfolio›$3.2M
Moran Wealth Management, LLC16,278
0.1% of portfolio›$3.2M
Citigroup Inc15,738
0.0% of portfolio›$3.1M
Wedge Capital Management L L P15,704
0.1% of portfolio›$3.1M
Oppenheimer & Co Inc15,217
0.0% of portfolio›$3.0M
New York State Teachers Retirement System12,314
0.0% of portfolio›$2.4K
Wealth Enhancement Advisory Services, LLC10,266
0.0% of portfolio›$211.7K
Thrivent Financial for Lutherans9,855
0.0% of portfolio›$1.9K
Argent Capital Management LLC9,191
0.1% of portfolio›$1.8M
NorthCrest Asset Manangement, LLC9,171
0.0% of portfolio›$1.8M
Cascade Investment Advisors, Inc.9,128
1.0% of portfolio›$1.8M
Allspring Global Investments Holdings, LLC8,644
0.0% of portfolio›$1.7M
Illinois Municipal Retirement Fund8,363
0.0% of portfolio›$1.6M
Louisiana State Employees Retirement System6,600
0.0% of portfolio›$1.3M
Livforsakringsbolaget Skandia, Omsesidigt6,600
0.0% of portfolio›$1.3M
Truist Financial Corp5,761
0.0% of portfolio›$1.1M
State of New Jersey Common Pension Fund D5,624
0.0% of portfolio›$1.1M
Concurrent Investment Advisors, LLC4,464
0.0% of portfolio›$867.7K
Arizona State Retirement System4,409
0.0% of portfolio›$857.0K
Park Avenue Securities LLC4,156
0.0% of portfolio›$808
Yousif Capital Management, LLC4,056
0.0% of portfolio›$788.4K
Amalgamated Bank4,031
0.0% of portfolio›$784
Register Financial Advisors LLC3,825
0.2% of portfolio›$743.5K
Skylands Capital, LLC3,675
0.1% of portfolio›$714.3K
Commonwealth of Pennsylvania Public School Empls Retrmt SYS3,651
0.0% of portfolio›$709.6K
Oregon Public Employees Retirement Fund3,476
0.0% of portfolio›$675.6K
Virginia Retirement Systems ET Al3,280
0.0% of portfolio›$637.5K
Inspire Investing, LLC3,251
0.0% of portfolio›$631.9K
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management3,156
0.0% of portfolio›$613.4K
North Star Investment Management Corp.3,100
0.0% of portfolio›$602.5K
Assenagon Asset Management S.A.2,845
0.0% of portfolio›$553.0K
State of Alaska, Department of Revenue2,603
0.0% of portfolio›$505
Guidance Capital, Inc2,596
0.1% of portfolio›$516.3K
Pictet Asset Management Holding SA2,541
0.0% of portfolio›$493.9K
Fulton Bank, N.A.2,525
0.0% of portfolio›$490.8K
Ashton Thomas Private Wealth, LLC2,365
0.0% of portfolio›$459.7K
ProShare Advisors LLC2,190
0.0% of portfolio›$425.7K
AIA Group Ltd1,815
0.0% of portfolio›$352.8K
Robeco Institutional Asset Management B.V.1,815
0.0% of portfolio›$352.8K
Mutual of America Capital Management LLC1,768
0.0% of portfolio›$343.6K
Kestra Advisory Services, LLC1,654
0.0% of portfolio›$321.5K
Atria Investments, Inc1,628
0.0% of portfolio›$316.4K
Xponance LLC1,536
0.0% of portfolio›$298.6K
Quadrant Capital Group LLC1,477
0.0% of portfolio›$287.6K
Praxis Investment Management Inc1,451
0.0% of portfolio›$282
EverSource Wealth Advisors, LLC1,360
0.0% of portfolio›$264.3K
Premier Fund Managers Ltd1,339
0.0% of portfolio›$257
Assetmark, Inc1,305
0.0% of portfolio›$253.7K
Retirement Guys Formula LLC1,262
0.1% of portfolio›$245.3K
Swiss Life Asset Management Ltd1,150
0.0% of portfolio›$223.5K
Wedbush Securities Inc1,060
0.0% of portfolio›$206
Imc-Chicago, LLC1,058
0.0% of portfolio›$205.6K
State of Wyoming1,048
0.0% of portfolio›$203.7K
Avanza Fonder AB805
0.0% of portfolio›$156.5K
Byrne Asset Management LLC648
0.1% of portfolio›$127.4K
Pinnacle Wealth Planning Services, Inc.575
0.0% of portfolio›$111.8K
KBC Group NV541
0.0% of portfolio›$105
Sterling Capital Management LLC529
0.0% of portfolio›$102.8K
DekaBank Deutsche Girozentrale392
0.0% of portfolio›$75
West Paces Advisors Inc.392
0.0% of portfolio›$76.2K
Harbor Investment Advisory, LLC311
0.0% of portfolio›$60.4K
Parkside Financial Bank & Trust293
0.0% of portfolio›$57.0K
Bayforest Capital Ltd289
0.1% of portfolio›$56.2K
Nisa Investment Advisors, LLC256
0.0% of portfolio›$49.8K
Gamma Investing LLC243
0.0% of portfolio›$47.2K
Farther Finance Advisors, LLC202
0.0% of portfolio›$39.3K
Signature Equity Partners, LLC200
0.0% of portfolio›$38.9K
Strs Ohio200
0.0% of portfolio›$38.9K
IFP Advisors, Inc163
0.0% of portfolio›$31.7K
Salomon & Ludwin, LLC118
0.0% of portfolio›$22.9K
Elyxium Wealth, LLC100
0.0% of portfolio›$19.4K
Private Trust Co NA89
0.0% of portfolio›$17.3K
Acumen Wealth Advisors, LLC81
0.0% of portfolio›$15.7K
Abound Wealth Management78
0.0% of portfolio›$15.2K
Exchange Traded Concepts, LLC77
0.0% of portfolio›$15.0K
Lanark Financial, Inc.73
0.0% of portfolio›$14.2K
KFG LLC63
0.0% of portfolio›$12.2K
Harbor Capital Advisors, Inc.59
0.0% of portfolio›$11
Root Financial Partners, LLC57
0.0% of portfolio›$11.1K
Larson Financial Group LLC49
0.0% of portfolio›$9.5K
Cedar Mountain Advisors, LLC44
0.0% of portfolio›$8.6K
Bare Financial Services, Inc41
0.0% of portfolio›$8.0K
Cherry Tree Wealth Management, LLC40
0.0% of portfolio›$7.8K
Signaturefd, LLC38
0.0% of portfolio›$7.4K
Bell Investment Advisors, Inc30
0.0% of portfolio›$5.8K
Versant Capital Management, Inc26
0.0% of portfolio›$5.1K
Brown, Lisle Ings, Inc.24
0.0% of portfolio›$4.7K
Parallel Advisors, LLC24
0.0% of portfolio›$4.7K
Essential Partners LLC21
0.0% of portfolio›$4.1K
SBI Securities Co., Ltd.18
0.0% of portfolio›$3.5K
JFS Wealth Advisors, LLC17
0.0% of portfolio›$3.3K
True Wealth Design, LLC15
0.0% of portfolio›$2.9K
Farmers & Merchants Investments Inc15
0.0% of portfolio›$2.9K
Caitong International Asset Management Co., Ltd15
0.0% of portfolio›$2.9K
Covestor Ltd12
0.0% of portfolio›$2
Valley National Advisers Inc11
0.0% of portfolio›$2.1K
Fortitude Family Office, LLC11
0.0% of portfolio›$2.1K
Silver Grove Financial Group, Inc.10
0.0% of portfolio›$1.9K
SJS Investment Consulting Inc.9
0.0% of portfolio›$1.8K
Creative Capital Management Investments LLC9
0.0% of portfolio›$1.7K
Horizon Financial Services, LLC8
0.0% of portfolio›$1.6K
MassMutual Private Wealth & Trust, FSB7
0.0% of portfolio›$1.4K
Triumph Capital Management6
0.0% of portfolio›$1.2K
WPG Advisers, LLC5
0.0% of portfolio›$972
Physician Wealth Advisors, Inc.4
0.0% of portfolio›$778
Hughes Financial Services, LLC2
0.0% of portfolio›$416
Bay Harbor Wealth Management, LLC2
0.0% of portfolio›$389
TFC Financial Management, Inc.1
0.0% of portfolio›$195
Financial Consulate, Inc1
0.0% of portfolio›$195
DiNuzzo Private Wealth, Inc.1
0.0% of portfolio›$195
StyleTurnoverLocationFiled
Dimensional Fund Advisors LP
440,281$85.6M0.0%IndexLowAustin, TX2026-11-04
Channing Capital Management, LLC
414,703$80.6M2.1%ValueHighChicago, IL2026-11-02
Bank of New York Mellon Corp
98,033$19.1M0.0%CoreLowNew York, NY2026-11-05
Swedbank AB
81,000$15.7M0.0%GrowthLowStockholm, Sweden2026-10-27
Principal Financial Group Inc
75,116$14.6M0.0%CoreLowDes Moines, IA2026-11-02
Robeco Schweiz AG
60,500$11.8M0.2%GrowthMediumZurich, Switzerland2026-10-23
Asset Management One Co., Ltd.
57,960$11.3M0.0%IndexVery LowTokyo, Mexico2026-10-27
Bridge City Capital, LLC
37,978$7.4M1.5%ValueMediumLake Oswego, OR2026-10-29
GHP Investment Advisors, Inc.
34,872$6.8M0.3%CoreVery LowDenver, CO2026-10-15
Stanley-Laman Group, Ltd.
18,382$3.6M0.4%GrowthMediumBerwyn, PA2026-10-20
Chatham Capital Group, Inc.
17,490$3.4M0.4%CoreLowSavannah, GA2026-10-16
OAK Ridge Investments LLC
17,387$3.4M0.2%MomentumMediumChicago, IL2026-10-30
Moody Aldrich Partners LLC
17,047$3.3M0.6%ValueHighMarblehead, MA2026-10-27
Creative Planning
16,332$3.2M0.0%IndexVery LowOverland Park, KS2026-11-02
Moran Wealth Management, LLC
16,278$3.2M0.1%CoreMediumNaples, FL2026-10-22
Citigroup Inc
15,738$3.1M0.0%CoreMediumNew York, NY2026-11-04
Wedge Capital Management L L P
15,704$3.1M0.1%ValueMediumCharlotte, NC2026-10-13
Oppenheimer & Co Inc
15,217$3.0M0.0%CoreLowNew York, NY2026-10-26
New York State Teachers Retirement System
12,314$2.4K0.0%CoreVery LowAlbany, NY2026-10-22
Wealth Enhancement Advisory Services, LLC
10,266$211.7K0.0%CoreLowPlymouth, MN2026-10-13
Thrivent Financial for Lutherans
9,855$1.9K0.0%GARPMediumMinneapolis, MN2026-11-05
Argent Capital Management LLC
9,191$1.8M0.1%CoreMediumSt Louis, MO2026-10-05
NorthCrest Asset Manangement, LLC
9,171$1.8M0.0%GrowthLowPlymouth, MN2026-10-13
Cascade Investment Advisors, Inc.
9,128$1.8M1.0%ValueLowOregon City, OR2026-11-02
Allspring Global Investments Holdings, LLC
8,644$1.7M0.0%CoreMediumCharlotte, NC2026-11-04
Illinois Municipal Retirement Fund
8,363$1.6M0.0%CoreMediumOak Brook, IL2026-11-05
Louisiana State Employees Retirement System
6,600$1.3M0.0%IndexLowBaton Rouge, LA2026-10-20
Livforsakringsbolaget Skandia, Omsesidigt
6,600$1.3M0.0%GrowthMediumStockholm, Sweden2026-10-21
Truist Financial Corp
5,761$1.1M0.0%CoreLowCharlotte, NC2026-10-30
State of New Jersey Common Pension Fund D
5,624$1.1M0.0%CoreLowTrenton, NJ2026-11-05
Concurrent Investment Advisors, LLC
4,464$867.7K0.0%GrowthMediumTampa, FL2026-10-16
Arizona State Retirement System
4,409$857.0K0.0%IndexVery LowPhoenix, AZ2026-11-03
Park Avenue Securities LLC
4,156$8080.0%ETFMediumNew York, NY2026-10-26
Yousif Capital Management, LLC
4,056$788.4K0.0%IndexVery LowBloomfield Hills, MI2026-10-22
Amalgamated Bank
4,031$7840.0%CoreVery LowNew York, NY2026-10-23
Register Financial Advisors LLC
3,825$743.5K0.2%GARPLowAtlanta, GA2026-10-23
Skylands Capital, LLC
3,675$714.3K0.1%ValueMediumMilwaukee, WI2026-10-21
Commonwealth of Pennsylvania Public School Empls Retrmt SYS
3,651$709.6K0.0%CoreLowHarrisburg, PA2026-11-03
Oregon Public Employees Retirement Fund
3,476$675.6K0.0%IndexVery LowTigard, OR2026-10-30
Virginia Retirement Systems ET Al
3,280$637.5K0.0%CoreMediumRichmond, VA2026-10-28
Inspire Investing, LLC
3,251$631.9K0.0%GARPHighMeridian, ID2026-10-22
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management
3,156$613.4K0.0%GrowthVery LowSeattle, WA2026-10-27
North Star Investment Management Corp.
3,100$602.5K0.0%CoreLowChicago, IL2026-10-27
Assenagon Asset Management S.A.
2,845$553.0K0.0%GrowthHighSenningerberg, Netherlands2026-10-15
State of Alaska, Department of Revenue
2,603$5050.0%CoreVery LowJuneau, AK2026-10-15
Guidance Capital, Inc
2,596$516.3K0.1%ETFMediumLousville, KY2026-11-03
Pictet Asset Management Holding SA
2,541$493.9K0.0%GrowthMediumCarouge, Switzerland2026-11-03
Fulton Bank, N.A.
2,525$490.8K0.0%CoreLowLancaster, PA2026-10-14
Ashton Thomas Private Wealth, LLC
2,365$459.7K0.0%CoreMediumScottsdale, AZ2026-11-03
ProShare Advisors LLC
2,190$425.7K0.0%GrowthLowBethesda, MD2026-10-29
AIA Group Ltd
1,815$352.8K0.0%GrowthMediumHong Kong, South Korea2026-10-30
Robeco Institutional Asset Management B.V.
1,815$352.8K0.0%CoreMediumRotterdam, Philippines2026-10-20
Mutual of America Capital Management LLC
1,768$343.6K0.0%IndexLowNew York, NY2026-10-23
Kestra Advisory Services, LLC
1,654$321.5K0.0%CoreLowAustin, TX2026-11-02
Atria Investments, Inc
1,628$316.4K0.0%CoreMediumCharlotte, NC2026-10-15
Xponance LLC
1,536$298.6K0.0%IndexVery LowPhiladelphia, PA2026-11-03
Quadrant Capital Group LLC
1,477$287.6K0.0%CoreLowCincinnati, OH2026-10-20
Praxis Investment Management Inc
1,451$2820.0%CoreLowGoshen, IN2026-11-03
EverSource Wealth Advisors, LLC
1,360$264.3K0.0%CoreMediumBirmingham, AL2026-11-04
Premier Fund Managers Ltd
1,339$2570.0%MomentumMediumLondon, United Kingdom2026-11-02
Assetmark, Inc
1,305$253.7K0.0%ETFLowConcord, CA2026-10-21
Retirement Guys Formula LLC
1,262$245.3K0.1%CoreMediumMaumee, OH2026-10-26
Swiss Life Asset Management Ltd
1,150$223.5K0.0%CoreLowZurich, Switzerland2026-11-03
Wedbush Securities Inc
1,060$2060.0%CoreLowPasadena, CA2026-10-22
Imc-Chicago, LLC
1,058$205.6K0.0%GARPVery HighChicago, IL2026-11-05
State of Wyoming
1,048$203.7K0.0%ValueHighCheyenne, WY2026-10-28
Avanza Fonder AB
805$156.5K0.0%GrowthLowStockholm, Sweden2026-10-13
Byrne Asset Management LLC
648$127.4K0.1%CoreLowKingston, NJ2026-10-06
Pinnacle Wealth Planning Services, Inc.
575$111.8K0.0%GARPLowMansfield, OH2026-10-27
KBC Group NV
541$1050.0%CoreMediumBrussels, Czech Republic2026-10-22
Sterling Capital Management LLC
529$102.8K0.0%GARPMediumCharlotte, NC2026-10-22
DekaBank Deutsche Girozentrale
392$750.0%CoreLowFrankfurt, Hong Kong2026-10-27
West Paces Advisors Inc.
392$76.2K0.0%ETFLowAtlanta, GA2026-10-13
Harbor Investment Advisory, LLC
311$60.4K0.0%GrowthLowLutherville, MD2026-10-13
Parkside Financial Bank & Trust
293$57.0K0.0%CoreVery LowSaint Louis, MO2026-10-27
Bayforest Capital Ltd
289$56.2K0.1%Deep ValueVery HighLondon, United Kingdom2026-11-03
Nisa Investment Advisors, LLC
256$49.8K0.0%IndexVery LowSt. Louis, MO2026-10-20
Gamma Investing LLC
243$47.2K0.0%IndexVery LowFoster City, CA2026-10-08
Farther Finance Advisors, LLC
202$39.3K0.0%IndexLowSan Francisco, CA2026-10-08
Signature Equity Partners, LLC
200$38.9K0.0%GrowthMediumColumbus, OH2026-10-29
Strs Ohio
200$38.9K0.0%CoreMediumColumbus, OH2026-10-30
IFP Advisors, Inc
163$31.7K0.0%GrowthLowTampa, FL2026-10-16
Salomon & Ludwin, LLC
118$22.9K0.0%ETFVery LowRichmond, VA2026-10-29
Elyxium Wealth, LLC
100$19.4K0.0%GrowthVery LowBeverly Hills, CA2026-10-27
Private Trust Co NA
89$17.3K0.0%CoreLowCleveland, OH2026-10-20
Acumen Wealth Advisors, LLC
81$15.7K0.0%GrowthHighChattanooga, TN2026-11-05
Abound Wealth Management
78$15.2K0.0%ETFVery LowFranklin, TN2026-10-26
Exchange Traded Concepts, LLC
77$15.0K0.0%GrowthMediumOklahoma City, OK2026-10-28
Lanark Financial, Inc.
73$14.2K0.0%CoreMediumBirmingham, AL2026-10-26
KFG LLC
63$12.2K0.0%ETFN/ARapid City, SD2026-11-02
Harbor Capital Advisors, Inc.
59$110.0%ValueHighChicago, IL2026-10-22
Root Financial Partners, LLC
57$11.1K0.0%ETFMediumEncinitas, CA2026-10-21
Larson Financial Group LLC
49$9.5K0.0%GrowthLowSt Louis, MO2026-11-05
Cedar Mountain Advisors, LLC
44$8.6K0.0%ETFVery LowLake Oswego, OR2026-10-15
Bare Financial Services, Inc
41$8.0K0.0%ETFVery LowGap, PA2026-11-04
Cherry Tree Wealth Management, LLC
40$7.8K0.0%ETFVery LowMinnetonka, MN2026-10-15
Signaturefd, LLC
38$7.4K0.0%IndexLowAtlanta, GA2026-10-23
Bell Investment Advisors, Inc
30$5.8K0.0%ETFVery LowOrinda, CA2026-10-29
Versant Capital Management, Inc
26$5.1K0.0%GARPLowPhoenix, AZ2026-10-02
Brown, Lisle Ings, Inc.
24$4.7K0.0%CoreVery LowProvidence, RI2026-10-16
Parallel Advisors, LLC
24$4.7K0.0%IndexLowSan Francisco, CA2026-11-03
Essential Partners LLC
21$4.1K0.0%ValueMediumRancho Santa Fe, CA2026-10-14
SBI Securities Co., Ltd.
18$3.5K0.0%Agg GrowthLowTokyo, Mexico2026-10-22
JFS Wealth Advisors, LLC
17$3.3K0.0%ETFVery LowHermitage, PA2026-11-03
True Wealth Design, LLC
15$2.9K0.0%ETFMediumAkron, OH2026-10-13
Farmers & Merchants Investments Inc
15$2.9K0.0%CoreVery LowLincoln, NE2026-10-22
Caitong International Asset Management Co., Ltd
15$2.9K0.0%GrowthVery HighHong Kong, South Korea2026-10-29
Covestor Ltd
12$20.0%ValueHighLondon, United Kingdom2026-10-30
Valley National Advisers Inc
11$2.1K0.0%ETFLowBethlehem, PA2026-10-23
Fortitude Family Office, LLC
11$2.1K0.0%ETFMediumScottsdale, AZ2026-10-14
Silver Grove Financial Group, Inc.
10$1.9K0.0%CoreMediumOrchard Park, NY2026-11-05
SJS Investment Consulting Inc.
9$1.8K0.0%ETFVery LowSylvania, OH2026-10-26
Creative Capital Management Investments LLC
9$1.7K0.0%ETFLowSan Diego, CA2026-10-28
Horizon Financial Services, LLC
8$1.6K0.0%ETFLowWinston Salem, NC2026-11-04
MassMutual Private Wealth & Trust, FSB
7$1.4K0.0%CoreLowSpringfield, MA2026-10-05
Triumph Capital Management
6$1.2K0.0%ETFMediumDenver, CO2026-10-14
WPG Advisers, LLC
5$9720.0%CoreLowBaltimore, MD2026-10-27
Physician Wealth Advisors, Inc.
4$7780.0%ETFMediumMidvale, UT2026-10-20
Hughes Financial Services, LLC
2$4160.0%ETFLowHerndon, VA2026-10-30
Bay Harbor Wealth Management, LLC
2$3890.0%ETFMediumHunt Valley, MD2026-11-03
TFC Financial Management, Inc.
1$1950.0%ETFVery LowBoston, MA2026-10-26
Financial Consulate, Inc
1$1950.0%ETFLowHunt Valley, MD2026-10-23
DiNuzzo Private Wealth, Inc.
1$1950.0%ETFLowBeaver, PA2026-10-16