Osi Systems Inc

OSIS

Exchange: Nasdaq
Industry: Semiconductors & Related Devices
SEC CIK: 0001039065

SEC filings (opens in a new tab)

No open-market purchases or sales by Osi Systems Inc insiders were filed in the last 90 days; 366 institutions reported holding it in 13F filings for Q2 2026, worth $4.14B in total; no superinvestor holds it.

13F holders, Q3 2026

Institutional positions in Osi Systems Inc as of Sep 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 3; 0 vs. Q2 2026
Shares held: 9.22K; −1.45K (−13.5%) vs. Q2 2026
Total value: $1.79M; −$540.4K (−23.2%) vs. Q2 2026
New holders: 0; 1 more added
Sold out: 0; 2 more reduced

363 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting OSIS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holders

Value held

Institutions holding OSIS and their total value by quarter
Quarter	Holders	Value
Q2 2026	366	$4.14B
Q1 2026	368	$5.00B
Q4 2025	358	$4.80B
Q3 2025	349	$4.66B
Q2 2025	339	$4.20B
Q1 2025	308	$3.76B
Q4 2024	307	$3.03B
Q3 2024	275	$2.51B
Q2 2024	265	$2.12B
Q1 2024	250	$2.17B
Q4 2023	227	$1.96B
Q3 2023	238	$1.77B
Q2 2023	210	$1.77B
Q1 2023	184	$1.54B
Q4 2022	190	$1.22B
Q3 2022	182	$1.09B
Q2 2022	186	$1.33B
Q1 2022	183	$1.36B
Q4 2021	194	$1.55B
Q3 2021	193	$1.61B
Q2 2021	189	$1.76B
Q1 2021	194	$1.64B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding Osi Systems Inc; share changes are against Q2 2026.

Institutions holding OSIS in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Massmutual Trust Co FSB	7	$1.36K	0.00%	+6+600.0%	Added
Versant Capital Management, Inc	26	$5.05K	0.00%	−2−7.1%	Reduced
Argent Capital Management LLC	9,191	$1.79M	0.06%	−1,449−13.6%	Reduced
BlackRock, Inc.	–	–	–	–	Not filed
FMR LLC	–	–	–	–	Not filed
Vanguard Portfolio Management LLC	–	–	–	–	Not filed
Jupiter Topco LLC	–	–	–	–	Not filed
Vanguard Capital Management LLC	–	–	–	–	Not filed
State Street Corp	–	–	–	–	Not filed
Capital International Investors	–	–	–	–	Not filed
Geode Capital Management, LLC	–	–	–	–	Not filed
UBS Asset Management Americas Inc	–	–	–	–	Not filed
Channing Capital Management, LLC	–	–	–	–	Not filed
Hood River Capital Management LLC	–	–	–	–	Not filed
Dimensional Fund Advisors LP	–	–	–	–	Not filed
William Blair Investment Management, LLC	–	–	–	–	Not filed
Neuberger Berman Group LLC	–	–	–	–	Not filed
Price T Rowe Associates Inc	–	–	–	–	Not filed
Millennium Management LLC	–	–	–	–	Not filed
Invesco Ltd.	–	–	–	–	Not filed
Primecap Management Co	–	–	–	–	Not filed
American Century Companies Inc	–	–	–	–	Not filed
Neumeier Poma Investment Counsel LLC	–	–	–	–	Not filed
Clark Capital Management Group, Inc.	–	–	–	–	Not filed
Systematic Financial Management LP	–	–	–	–	Not filed
UBS Group AG	–	–	–	–	Not filed
Van Eck Associates Corp	–	–	–	–	Not filed
Morgan Stanley	–	–	–	–	Not filed
Charles Schwab Investment Management Inc	–	–	–	–	Not filed
Mirae Asset Global ETFs Holdings Ltd.	–	–	–	–	Not filed
JPMorgan Chase & Co	–	–	–	–	Not filed
Ameriprise Financial Inc	–	–	–	–	Not filed
Northern Trust Corp	–	–	–	–	Not filed
Wellington Management Group LLP	–	–	–	–	Not filed
Bank of America Corp	–	–	–	–	Not filed
Clearbridge Investments, LLC	–	–	–	–	Not filed
Voya Investment Management LLC	–	–	–	–	Not filed
Goldman Sachs Group Inc	–	–	–	–	Not filed
Nomura Asset Management International Inc.	–	–	–	–	Not filed
Swedbank AB	–	–	–	–	Not filed
Vanguard Fiduciary Trust Co	–	–	–	–	Not filed
New York State Common Retirement Fund	–	–	–	–	Not filed
Oberweis Asset Management Inc	–	–	–	–	Not filed
Principal Financial Group Inc	–	–	–	–	Not filed
Envestnet Asset Management Inc	–	–	–	–	Not filed
T. Rowe Price Investment Management, Inc.	–	–	–	–	Not filed
Bank of New York Mellon Corp	–	–	–	–	Not filed
Brown Advisory Inc	–	–	–	–	Not filed
Boston Partners	–	–	–	–	Not filed
BNP Paribas Arbitrage, SA	–	–	–	–	Not filed
Asset Management One Co.,Ltd.	–	–	–	–	Not filed
Nuveen, LLC	–	–	–	–	Not filed
Wells Fargo & Company	–	–	–	–	Not filed
Prospect Capital Advisors, LLC	–	–	–	–	Not filed
Public Sector Pension Investment Board	–	–	–	–	Not filed
First Eagle Investment Management, LLC	–	–	–	–	Not filed
Segall Bryant & Hamill, LLC	–	–	–	–	Not filed
Mirova	–	–	–	–	Not filed
Nordea Investment Management AB	–	–	–	–	Not filed
First Trust Advisors LP	–	–	–	–	Not filed
Rhumbline Advisers	–	–	–	–	Not filed
Legal & General Group Plc	–	–	–	–	Not filed
Robeco Schweiz AG	–	–	–	–	Not filed
PDT Partners, LLC	–	–	–	–	Not filed
GHP Investment Advisors, Inc.	–	–	–	–	Not filed
Bridge City Capital, LLC	–	–	–	–	Not filed
Manatuck Hill Partners, LLC	–	–	–	–	Not filed
Intrinsic Edge Capital Management LLC	–	–	–	–	Not filed
Swiss National Bank	–	–	–	–	Not filed
Stifel Financial Corp	–	–	–	–	Not filed
HRT Financial LP	–	–	–	–	Not filed
Divisadero Street Capital Management, LP	–	–	–	–	Not filed
Advisors Asset Management, Inc.	–	–	–	–	Not filed
Alliancebernstein L.P.	–	–	–	–	Not filed
LPL Financial LLC	–	–	–	–	Not filed
Loomis Sayles & Co L P	–	–	–	–	Not filed
XTX Topco Ltd	–	–	–	–	Not filed
Dai-Ichi Life Insurance Company, Ltd	–	–	–	–	Not filed
Deutsche Bank AG	–	–	–	–	Not filed
D. E. Shaw & Co., Inc.	–	–	–	–	Not filed
Citigroup Inc	–	–	–	–	Not filed
Susquehanna Fundamental Investments, LLC	–	–	–	–	Not filed
Stanley-Laman Group, Ltd.	–	–	–	–	Not filed
Weiss Asset Management LP	–	–	–	–	Not filed
California State Teachers Retirement System	–	–	–	–	Not filed
Oak Ridge Investments LLC	–	–	–	–	Not filed
AQR Capital Management LLC	–	–	–	–	Not filed
MML Investors Services, LLC	–	–	–	–	Not filed
Chatham Capital Group, Inc.	–	–	–	–	Not filed
Moody Aldrich Partners LLC	–	–	–	–	Not filed
Prudential Financial Inc	–	–	–	–	Not filed
Hilton Capital Management, LLC	–	–	–	–	Not filed
Moran Wealth Management, LLC	–	–	–	–	Not filed
Vanguard Asset Management, Ltd	–	–	–	–	Not filed
State of Wisconsin Investment Board	–	–	–	–	Not filed
Royal Bank of Canada	–	–	–	–	Not filed
Trexquant Investment LP	–	–	–	–	Not filed
Wedge Capital Management L L P	–	–	–	–	Not filed
Great West Life Assurance Co	–	–	–	–	Not filed
Livforsakringsbolaget Skandia, Omsesidigt	–	–	–	–	Not filed