OSI Systems counsel awarded 16,845 RSU shares

For OSI SYSTEMS INC (OSIS), General Counsel Victor S. Sze reported equity compensation activity in common stock on 2026-08-24.

Rhea-AI Filing Summary

For OSI SYSTEMS INC (OSIS), General Counsel Victor S. Sze reported equity compensation activity in common stock on 2026-08-24. He received a grant of 16,845 RSU-based shares that vest based on performance, and 14,999 shares were withheld in a net settlement to cover tax withholding at a reference value of $206.73 per share, with no shares sold. An additional 5,388 shares are reported as held indirectly through the Sze Trust.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider SZE VICTOR S

Role GENERAL COUNSEL

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	16,845	$206.73	$3.48M
Tax Withholding	Common Stock F2	14,999	$206.73	$3.10M
holding	Common Stock F3	--	--	--

Holdings After Transaction: Common Stock — 95,607 shares (Direct); Common Stock — 5,388 shares (Indirect, Please see footnote)

Footnotes (3)

1. F1. RSUs are issued pursuant to performance based vesting.
2. F2. Pursuant to a net settlement, shares of stock were tendered to pay for the tax withholding. No shares of stock were sold.
3. F3. Victor So-Mien Sze & Angela Hsin-Chi Hsu Co-ttee Sze Trust U/T/A DTD 11/25/2014

Key Figures

RSU-based common shares granted: 16,845 shares Shares withheld for tax withholding: 14,999 shares Reference share value: $206.73 per share +2 more

5 metrics

RSU-based common shares granted 16,845 shares Grant/award acquisition on 2026-08-24 at $206.73 per share

Shares withheld for tax withholding 14,999 shares Net settlement for payment of tax withholding on 2026-08-24; no shares sold

Reference share value $206.73 per share Applied to both the 16,845-share grant and the 14,999-share tax withholding entry

Indirectly held shares 5,388 shares Indirect ownership through Victor So-Mien Sze & Angela Hsin-Chi Hsu Co-ttee Sze Trust U/T/A DTD 11/25/2014

Exercise price or tax liability shares (Form 4 summary) 14,999 shares ExercisePriceOrTaxLiabilityShares reported in transaction summary for code F

Key Terms

RSUs, performance based vesting, net settlement, tax withholding, +1 more

5 terms

RSUs financial

"RSUs are issued pursuant to performance based vesting."

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

performance based vesting financial

"RSUs are issued pursuant to performance based vesting."

net settlement financial

"Pursuant to a net settlement, shares of stock were tendered to pay"

tax withholding financial

"shares of stock were tendered to pay for the tax withholding."

Tax withholding is the practice of taking a portion of a payment—such as wages, dividends, or sale proceeds—before it reaches the recipient and sending that portion to the tax authority as an advance on the recipient’s eventual tax bill. For investors it matters because withholding reduces immediate cash received and affects after‑tax returns, estimated tax payments, and whether you may owe more or receive a refund when taxes are finally calculated, like having a small automatic savings set aside for your tax bill.

indirect ownership financial

"total_shares_following_transaction 5,388.0000, ownership_type indirect"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did OSIS General Counsel Victor S. Sze report on this Form 4?

Victor S. Sze reported a grant of 16,845 RSU-based common shares on 2026-08-24 and a related withholding of 14,999 shares to satisfy tax obligations, executed via net settlement with no shares sold into the market.

How many OSIS shares were granted to Victor S. Sze and at what value?

Victor S. Sze received a grant of 16,845 common shares tied to performance-based RSUs, with the transaction reported at $206.73 per share on 2026-08-24.

Were any OSIS shares actually sold by Victor S. Sze in this Form 4 filing?

No. A total of 14,999 shares were withheld or tendered to cover tax withholding in a net settlement, and the footnote states explicitly that no shares of stock were sold.

What OSIS shares does Victor S. Sze report as indirectly owned?

The filing reports 5,388 OSIS common shares held indirectly, associated with the “Victor So-Mien Sze & Angela Hsin-Chi Hsu Co-ttee Sze Trust U/T/A DTD 11/25/2014.”

Are the RSUs granted to Victor S. Sze time-based or performance-based for OSIS?

The footnote states that the RSUs are issued pursuant to performance based vesting, meaning the 16,845 granted shares are tied to the achievement of specified performance conditions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/26/2026 - 12:21 PM EDT Accepted by SEC EDGAR 08/26/2026 - 12:20 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

SZE VICTOR S

(Last) (First) (Middle)

12525 CHADRON AVE

(Street)

HAWTHORNE CALIFORNIA 90250

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
OSI SYSTEMS INC [ OSIS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	GENERAL COUNSEL

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/24/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/24/2026		A		16,845(1)	A	$206.73	110,606	D
Common Stock	08/24/2026		F		14,999(2)	D	$206.73	95,607	D
Common Stock								5,388	I	Please see footnote(3)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. RSUs are issued pursuant to performance based vesting.

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

3. Victor So-Mien Sze & Angela Hsin-Chi Hsu Co-ttee Sze Trust U/T/A DTD 11/25/2014

	/s/ Victor Sze	08/26/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)