Glenn Grindstaff - 24 Aug 2026 Form 4 Insider Report for OSI SYSTEMS INC (OSIS)

Reporting relationship: CHIEF HUMAN RESOURCES OFFICER
Issuer ticker: OSIS
Reported as of: 24 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 25 Aug 2026, 19:57:39 UTC
Prior SEC filing: 04 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Glenn Grindstaff

Key filing fact

Glenn Grindstaff filed Form 4 for OSI SYSTEMS INC (OSIS) on 25 Aug 2026.

Key facts

This page summarizes Glenn Grindstaff's Form 4 filing for OSI SYSTEMS INC (OSIS).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 25 Aug 2026, 19:57.

Change

Previous filing in this sequence was filed on 04 Aug 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001804609 Primary reporting owner

Grindstaff Glenn

Relationship: CHIEF HUMAN RESOURCES OFFICER
Address: 12525 CHADRON AVENUE, HAWTHORNE
Signature: /s/ Glenn Grindstaff
Signature date: 25 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

OSIS transaction

Common Stock

Award

Transaction value
Shares: +1,969
Change %: +20%
Price: $206.73^*
Shares after: 11,901
Date: 24 Aug 2026
Ownership: Direct
Footnotes: F1

OSIS transaction

Common Stock

Tax liability

Transaction value
Shares: -1,708
Change %: -14%
Price: $206.73^*
Shares after: 10,193
Date: 24 Aug 2026
Ownership: Direct
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

RSUs are issued pursuant to performance based vesting.

Footnote F2

Pursuant with a net settlement, shares of stock were tendered to pay for the tax withholding. No shares of stock were sold.

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. to update or revoke optional consent for future visits. For more information, see our Privacy Policy .