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OSI Systems, Inc. (OSIS) Institutional Ownership & Insider Trading

360 institutions reported holding OSI Systems, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 6 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

OSISOSI Systems, Inc.Follow OSIS — free
Electronic Components · Technology
—
Price chart with a free account
Market cap
3.1B
P/E TTM
21.9
Dividend yield
—
52-week
—
Next earnings
29 Oct, in 5 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

360 institutions held —% of the shares. Across filers that reported both quarters, shares held changed +0.0%.

Increased+113New+42Decreased-122Closed-49

Largest moves, shares (millions)

Millennium Management+0.3MWilliam Blair Investment…+0.2MAmerican Century Companies+0.2MMawer Investment Management-0.7MFMR-0.2MLoomis Sayles & Co L P-0.2M

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters
+0.8Sep 24+1.6Dec 24+1.4Mar 25-0.8Jun 25+0.1Sep 25-0.1Dec 25+0.1Mar 26+0.0Jun 26
QuarterHoldersShares held, MChangeIncreasedNewDecreasedClosed
Jun 2636019+0.0%1134212249
Mar 2636819+0.4%1093613227
Dec 2535119-0.5%1183610139
Sep 2534219+0.6%974412135
Jun 2533519-4.0%1025310922
Mar 2530219+7.8%89489639
Dec 2429918+9.5%106419124
Sep 2426916+5.9%93278018

OSI Systems, Inc. — questions

Who owns OSI Systems, Inc. stock?
360 institutions reported OSI Systems, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (16.0%), FMR LLC (10.9%), VANGUARD PORTFOLIO MANAGEMENT LLC (8.0%).
Are OSI Systems, Inc. insiders buying or selling?
6 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from OSI Systems, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.