OSI Systems CAO granted 908 shares in RSU vesting

OSI SYSTEMS INC (OSIS) reported that Cary M. Okawa, Chief Accounting Officer, received a grant of 908 shares of common stock on 2026-08-24 as part of performance-based RSU vesting.

Rhea-AI Filing Summary

OSI SYSTEMS INC (OSIS) reported that Cary M. Okawa, Chief Accounting Officer, received a grant of 908 shares of common stock on 2026-08-24 as part of performance-based RSU vesting. On the same date, 460 shares were withheld in a net settlement to cover tax withholding at $206.73 per share; no shares were sold in the market.

Insider Trade Summary

Net Buyer: 448 shares

Net Buy 2 txns

Insider Okawa Cary M.

Role CHIEF ACCOUNTING OFFICER

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	908	$206.73	$188K
Tax Withholding	Common Stock F2	460	$206.73	$95K

Holdings After Transaction: Common Stock — 4,304 shares (Direct)

Footnotes (2)

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

Key Figures

RSU shares granted: 908 shares of Common Stock Shares withheld for tax withholding: 460 shares of Common Stock Per-share value used for RSU vesting and withholding: $206.73 per share +1 more

4 metrics

RSU shares granted 908 shares of Common Stock Grant/award acquisition on 2026-08-24 tied to performance-based vesting

Shares withheld for tax withholding 460 shares of Common Stock Net settlement on 2026-08-24 to pay tax withholding; no market sale

Per-share value used for RSU vesting and withholding $206.73 per share Applied to both the 908-share grant and 460-share tax withholding on 2026-08-24

Shares used for payment of tax liability 460 shares ExercisePriceOrTaxLiabilityShares in transaction summary for code F transaction

Key Terms

RSUs, performance based vestings, net settlement, tax withholding

4 terms

RSUs financial

"RSUs are issued pursuant to performance based vestings."

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 vestings financial

"RSUs are issued pursuant to performance based vestings."

net settlement financial

"Pursuant with a net settlement, shares of stock were tendered"

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.

FAQ

What insider transaction did OSIS report for Cary M. Okawa on August 24, 2026?

OSI SYSTEMS INC reported that Chief Accounting Officer Cary M. Okawa received a grant of 908 shares of common stock tied to performance-based RSU vesting on 2026-08-24, with a portion withheld to cover taxes.

How many OSIS shares were withheld for taxes in Cary Okawa’s Form 4?

The filing shows that 460 shares of OSI SYSTEMS INC common stock were withheld in a net settlement to pay tax withholding obligations related to the vesting, at a reported value of $206.73 per share.

Were any OSIS shares actually sold in the open market in this Form 4?

No. A footnote states that, pursuant to a net settlement, shares were tendered to pay for tax withholding and that no shares of stock were sold in the market.

What type of equity award did Cary Okawa receive from OSI SYSTEMS INC (OSIS)?

The filing indicates that the 908-share grant relates to RSUs, which the company describes as being issued pursuant to performance based vestings of restricted stock units.

What price per share is associated with Cary Okawa’s OSIS RSU vesting and tax withholding?

Both the 908-share grant and the 460-share tax withholding in the filing reference a value of $206.73 per share for OSI SYSTEMS INC common stock on the transaction date.

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

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Available on EDGAR 08/26/2026 - 12:19 PM Accepted by SEC EDGAR 08/26/2026 - 12:19 PM 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^*

Okawa Cary M.

(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)
	CHIEF ACCOUNTING OFFICER

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		908(1)	A	$206.73	4,764	D
Common Stock	08/24/2026		F		460(2)	D	$206.73	4,304	D

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 vestings.

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

	/s/ Cary Okawa	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)