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Public ownership evidence

OSI Systems Inc (OSIS) Ownership Disclosures

Read OSIS insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-08-272026-08-24Morben Paul KeithA1,083Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-08-24 and its public availability date is 2026-08-27. Subtracting those calendar dates gives 3 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

Recent Form 4 activity

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2026-08-272026-08-24Morben Paul KeithA1,083Not reported
2026-08-272026-08-24Okawa Cary M.A908Not reported
2026-08-272026-08-24Tropeano MichaelA287Not reported
2026-08-272026-08-24SZE VICTOR SA16,845Not reported
2026-08-262026-08-24Grindstaff GlennA1,969Not reported
2026-08-262026-08-24EDRICK ALAN IA21,871Not reported
2026-08-262026-08-24MEHRA AJAYA20,073Not reported
2026-08-262026-08-24CHOPRA DEEPAKA20,403Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Advisors Asset Management, Inc.2021-12-312026-08-283,063$285,472None
Advisors Asset Management, Inc.2022-12-312026-08-2812,145$965,770None
Advisors Asset Management, Inc.2020-06-302026-08-288,194$611,600None
Advisors Asset Management, Inc.2022-06-302026-08-289,085$776,000None
Advisors Asset Management, Inc.2021-09-302026-08-285,235$496,000None
Advisors Asset Management, Inc.2024-03-312026-08-2722,804$3,256,867None
Advisors Asset Management, Inc.2025-03-312026-08-2716,334$3,174,350None
Advisors Asset Management, Inc.2022-09-302026-08-2710,558$761,000None
Advisors Asset Management, Inc.2020-12-312026-08-276,911$644,000None
Advisors Asset Management, Inc.2022-03-312026-08-276,864$584,264None
Advisors Asset Management, Inc.2023-06-302026-08-2722,641$2,667,789None
Advisors Asset Management, Inc.2023-09-302026-08-2722,588$2,666,288None
Advisors Asset Management, Inc.2023-03-312026-08-2714,935$1,528,747None
Advisors Asset Management, Inc.2021-03-312026-08-276,715$645,312None
Advisors Asset Management, Inc.2021-06-302026-08-276,610$672,000None
Advisors Asset Management, Inc.2020-09-302026-08-277,581$588,361None
Advisors Asset Management, Inc.2025-09-302026-08-2721,466$5,350,186None
Advisors Asset Management, Inc.2023-12-312026-08-2724,364$3,144,174None
Advisors Asset Management, Inc.2019-12-312026-08-267,536$759,177None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-262,160$472,392None
Advisors Asset Management, Inc.2025-06-302026-08-2519,629$4,413,777None
First Eagle Investment Management, LLC2026-06-302026-08-2552,146$11,404,330None
First Eagle Investment Management, LLC2026-06-302026-08-2516$3,499None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2518,144$3,968,093None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-253,968,093$18,144,000None
Advisors Asset Management, Inc.2024-09-302026-08-2217,409$2,643,208None
Advisors Asset Management, Inc.2024-06-302026-08-2224,759$3,404,858None
Advisors Asset Management, Inc.2024-12-312026-08-2218,839$3,154,214None
Advisors Asset Management, Inc.2025-12-312026-08-2222,453$5,726,862None
Advisors Asset Management, Inc.2020-03-312026-08-228,328$573,966None
Assenagon Asset Management S.A.2026-06-302026-08-222,845$622,202None
BOUSSARD & GAVAUDAN GESTION SAS2026-06-302026-08-2014,700$19,771,017None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-20958$209,475None
Advisors Asset Management, Inc.2019-09-302026-08-192,809$285,282None
Liontrust Investment Partners LLP2026-06-302026-08-19588$128,596None
Ensign Peak Advisors, Inc2026-03-312026-08-191,073$284,892None
Ensign Peak Advisors, Inc2025-12-312026-08-191,073$273,679None
Ensign Peak Advisors, Inc2025-09-302026-08-193,773$940,383None
Fulcrum Asset Management LLP2026-06-302026-08-1974$15,780None
Livforsakringsbolaget Skandia, Omsesidigt2026-06-302026-08-1912,900$2,821,230None
Empowered Funds, LLC2026-06-302026-08-187,455$1,630,409None
Empowered Funds, LLC2026-06-302026-08-18555$121,379None
Pure Financial Advisors, LLC2026-06-302026-08-182,000$437,400None
Transamerica Financial Advisors, LLC2026-06-302026-08-18117$25,587None
Equitable Holdings, Inc.2026-06-302026-08-185,119$1,119,525None
Jefferies Financial Group Inc.2026-06-302026-08-18256,000$342,141None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-18160$34,992None
MCGUIRE CAPITAL ADVISORS INC2026-06-302026-08-1523$5,030None
DARK FOREST CAPITAL MANAGEMENT LP2026-06-302026-08-153,752$820,562None
Graham Capital Management, L.P.2026-06-302026-08-15960$209,952None

90-day public filing window, up to 50 source positions.

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.