Separate the three disclosure sources
Recent Form 4 activity
OSI Systems Inc: source evidence dated 2026-10-10T12:08:28.848Z.
- Available
- 2026-08-27
- Trade date
- 2026-08-24
- Reporting owners
- Morben Paul Keith
- Code
- A
- Shares
- 1,083
- Reported value
- Not reported
The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.
Is this an insider transaction, 13F holding, or Congressional event?
Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.
SEC 0001628328-26-000009Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.
Read OSIS fundamentals
Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.
Read OSIS fundamentalsKeep reporting dates and units beside the answer, and inspect its original citations.
Recent Form 4 activity
See the complete recent form 4 activity
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| 2026-08-27 | 2026-08-24 | Morben Paul Keith | A | 1,083 | Not reported |
| 2026-08-27 | 2026-08-24 | Okawa Cary M. | A | 908 | Not reported |
| 2026-08-27 | 2026-08-24 | Tropeano Michael | A | 287 | Not reported |
| 2026-08-27 | 2026-08-24 | SZE VICTOR S | A | 16,845 | Not reported |
| 2026-08-26 | 2026-08-24 | Grindstaff Glenn | A | 1,969 | Not reported |
| 2026-08-26 | 2026-08-24 | EDRICK ALAN I | A | 21,871 | Not reported |
| 2026-08-26 | 2026-08-24 | MEHRA AJAY | A | 20,073 | Not reported |
| 2026-08-26 | 2026-08-24 | CHOPRA DEEPAK | A | 20,403 | Not reported |
| 2026-08-05 | 2026-07-31 | Grindstaff Glenn | A | 610 | Not reported |
| 2026-08-05 | 2026-07-31 | Morben Paul Keith | A | 1,491 | Not reported |
| 2026-08-05 | 2026-07-31 | Okawa Cary M. | A | 632 | Not reported |
| 2026-08-05 | 2026-07-31 | Tropeano Michael | A | 1,694 | Not reported |
| 2026-08-05 | 2026-07-31 | Constantine W Paul | A | 610 | Not reported |
| 2026-08-05 | 2026-07-31 | SZE VICTOR S | A | 6,437 | Not reported |
| 2026-08-05 | 2026-07-31 | EDRICK ALAN I | A | 8,514 | Not reported |
| 2026-08-05 | 2026-07-31 | MEHRA AJAY | A | 13,551 | Not reported |
| 2026-07-22 | 2026-07-20 | Bernard Kelli | A | 924 | Not reported |
| 2026-07-22 | 2026-07-20 | Ballhaus William Francis JR | A | 924 | Not reported |
| 2026-07-22 | 2026-07-20 | CHIZEVER GERALD M | A | 924 | Not reported |
| 2026-07-22 | 2026-07-20 | CHOPRA DEEPAK | A | 924 | Not reported |
| 2026-07-22 | 2026-07-20 | HAWKINS JAMES B | A | 924 | Not reported |
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90-day public availability window, up to 50 records.
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. | 2021-12-31 | 2026-08-28 | 3,063 | $285,472 | None |
| Advisors Asset Management, Inc. | 2022-12-31 | 2026-08-28 | 12,145 | $965,770 | None |
| Advisors Asset Management, Inc. | 2020-06-30 | 2026-08-28 | 8,194 | $611,600 | None |
| Advisors Asset Management, Inc. | 2022-06-30 | 2026-08-28 | 9,085 | $776,000 | None |
| Advisors Asset Management, Inc. | 2021-09-30 | 2026-08-28 | 5,235 | $496,000 | None |
| Advisors Asset Management, Inc. | 2024-03-31 | 2026-08-27 | 22,804 | $3,256,867 | None |
| Advisors Asset Management, Inc. | 2025-03-31 | 2026-08-27 | 16,334 | $3,174,350 | None |
| Advisors Asset Management, Inc. | 2022-09-30 | 2026-08-27 | 10,558 | $761,000 | None |
| Advisors Asset Management, Inc. | 2020-12-31 | 2026-08-27 | 6,911 | $644,000 | None |
| Advisors Asset Management, Inc. | 2022-03-31 | 2026-08-27 | 6,864 | $584,264 | None |
| Advisors Asset Management, Inc. | 2023-06-30 | 2026-08-27 | 22,641 | $2,667,789 | None |
| Advisors Asset Management, Inc. | 2023-09-30 | 2026-08-27 | 22,588 | $2,666,288 | None |
| Advisors Asset Management, Inc. | 2023-03-31 | 2026-08-27 | 14,935 | $1,528,747 | None |
| Advisors Asset Management, Inc. | 2021-03-31 | 2026-08-27 | 6,715 | $645,312 | None |
| Advisors Asset Management, Inc. | 2021-06-30 | 2026-08-27 | 6,610 | $672,000 | None |
| Advisors Asset Management, Inc. | 2020-09-30 | 2026-08-27 | 7,581 | $588,361 | None |
| Advisors Asset Management, Inc. | 2025-09-30 | 2026-08-27 | 21,466 | $5,350,186 | None |
| Advisors Asset Management, Inc. | 2023-12-31 | 2026-08-27 | 24,364 | $3,144,174 | None |
| Advisors Asset Management, Inc. | 2019-12-31 | 2026-08-26 | 7,536 | $759,177 | None |
| VIRGINIA RETIREMENT SYSTEMS ET Al | 2026-06-30 | 2026-08-26 | 2,160 | $472,392 | None |
| Advisors Asset Management, Inc. | 2025-06-30 | 2026-08-25 | 19,629 | $4,413,777 | None |
| First Eagle Investment Management, LLC | 2026-06-30 | 2026-08-25 | 52,146 | $11,404,330 | None |
| First Eagle Investment Management, LLC | 2026-06-30 | 2026-08-25 | 16 | $3,499 | None |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 2026-06-30 | 2026-08-25 | 18,144 | $3,968,093 | None |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 2026-06-30 | 2026-08-25 | 3,968,093 | $18,144,000 | None |
| Advisors Asset Management, Inc. | 2024-09-30 | 2026-08-22 | 17,409 | $2,643,208 | None |
| Advisors Asset Management, Inc. | 2024-06-30 | 2026-08-22 | 24,759 | $3,404,858 | None |
| Advisors Asset Management, Inc. | 2024-12-31 | 2026-08-22 | 18,839 | $3,154,214 | None |
| Advisors Asset Management, Inc. | 2025-12-31 | 2026-08-22 | 22,453 | $5,726,862 | None |
| Advisors Asset Management, Inc. | 2020-03-31 | 2026-08-22 | 8,328 | $573,966 | None |
| Assenagon Asset Management S.A. | 2026-06-30 | 2026-08-22 | 2,845 | $622,202 | None |
| BOUSSARD & GAVAUDAN GESTION SAS | 2026-06-30 | 2026-08-20 | 14,700 | $19,771,017 | None |
| MERCER GLOBAL ADVISORS INC /ADV | 2026-06-30 | 2026-08-20 | 958 | $209,475 | None |
| Advisors Asset Management, Inc. | 2019-09-30 | 2026-08-19 | 2,809 | $285,282 | None |
| Liontrust Investment Partners LLP | 2026-06-30 | 2026-08-19 | 588 | $128,596 | None |
| Ensign Peak Advisors, Inc | 2026-03-31 | 2026-08-19 | 1,073 | $284,892 | None |
| Ensign Peak Advisors, Inc | 2025-12-31 | 2026-08-19 | 1,073 | $273,679 | None |
| Ensign Peak Advisors, Inc | 2025-09-30 | 2026-08-19 | 3,773 | $940,383 | None |
| Fulcrum Asset Management LLP | 2026-06-30 | 2026-08-19 | 74 | $15,780 | None |
| Livforsakringsbolaget Skandia, Omsesidigt | 2026-06-30 | 2026-08-19 | 12,900 | $2,821,230 | None |
| Empowered Funds, LLC | 2026-06-30 | 2026-08-18 | 7,455 | $1,630,409 | None |
| Empowered Funds, LLC | 2026-06-30 | 2026-08-18 | 555 | $121,379 | None |
| Pure Financial Advisors, LLC | 2026-06-30 | 2026-08-18 | 2,000 | $437,400 | None |
| Transamerica Financial Advisors, LLC | 2026-06-30 | 2026-08-18 | 117 | $25,587 | None |
| Equitable Holdings, Inc. | 2026-06-30 | 2026-08-18 | 5,119 | $1,119,525 | None |
| Jefferies Financial Group Inc. | 2026-06-30 | 2026-08-18 | 256,000 | $342,141 | None |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | 2026-06-30 | 2026-08-18 | 160 | $34,992 | None |
| MCGUIRE CAPITAL ADVISORS INC | 2026-06-30 | 2026-08-15 | 23 | $5,030 | None |
| DARK FOREST CAPITAL MANAGEMENT LP | 2026-06-30 | 2026-08-15 | 3,752 | $820,562 | None |
| Graham Capital Management, L.P. | 2026-06-30 | 2026-08-15 | 960 | $209,952 | None |
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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.
Company insiders
SEC Form 4 purchases, sales and awards report transactions and their public filing availability.
Institutional managers
13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.
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.