Glenn Grindstaff - 26 Aug 2025 Form 4 Insider Report for OSI SYSTEMS INC (OSIS)

Role: CHIEF HUMAN RESOURCES OFFICER
Signature: /s/ Glenn Grindstaff
Issuer symbol: OSIS
Transactions as of: 26 Aug 2025
Net transactions value: +$86,023
Form type: 4
Filing time: 28 Aug 2025, 21:00:16 UTC
Previous filing: 05 Aug 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Grindstaff Glenn	CHIEF HUMAN RESOURCES OFFICER	12525 CHADRON AVENUE, HAWTHORNE	/s/ Glenn Grindstaff	28 Aug 2025	0001804609

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OSIS	Common Stock	Award	$584,368	+2,595	+29%	$225.19	11,518	26 Aug 2025	Direct	F1
transaction	OSIS	Common Stock	Tax liability	$498,345	-2,213	-19%	$225.19	9,305	26 Aug 2025	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	RSUs are issued pursuant to performance based vesting.
F2	Pursuant with a net settlement, shares of stock were tendered to pay for the tax withholding. No shares of stock were sold.