OSI Systems (OSIS) executive acquires 55 shares through Employee Stock Purchase Plan

Rhea-AI Filing Summary

OSI Systems Inc. executive Constantine W. Paul, President of Spacelabs Healthcare, acquired 55 shares of common stock at $185.90 per share. The shares were obtained as part of the issuer's Employee Stock Purchase Plan, reflecting a compensation-related acquisition rather than an open-market trade. Following this transaction, he directly holds 1,439 shares of OSI Systems common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Constantine W Paul

Role PRES., SPACELABS HEALTHCARE

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	55	$185.90	$10K

Holdings After Transaction: Common Stock — 1,439 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares acquired: 55 shares Reported transaction price: $185.90 per share Post-transaction holdings: 1,439 shares

3 metrics

Shares acquired 55 shares Common Stock acquired on June 30, 2026

Reported transaction price $185.90 per share Price associated with ESPP acquisition

Post-transaction holdings 1,439 shares Common Stock held directly after acquisition

Key Terms

Employee Stock Purchase Plan, Common Stock, Grant, award, or other acquisition

3 terms

Employee Stock Purchase Plan financial

"Acquired pursuant to issuer's Employee Stock Purchase Plan."

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

Common Stock financial

"security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/01/2026 - 04:01 PM Accepted by SEC EDGAR 07/01/2026 - 04:00 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^*

Constantine W Paul

(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)
	PRES., SPACELABS HEALTHCARE

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/30/2026

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	06/30/2026		A		55(1)	A	$185.9	1,439	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. Acquired pursuant to issuer's Employee Stock Purchase Plan.

	/s/ Wilson Paul Constantine	07/01/2026
	** 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)

FAQ

What insider transaction did OSI Systems (OSIS) report for Constantine W. Paul?

OSI Systems reported that Constantine W. Paul acquired 55 shares of common stock. The shares were obtained on June 30, 2026 through the company’s Employee Stock Purchase Plan, increasing his direct holdings to 1,439 shares after the transaction.

Was the OSI Systems (OSIS) insider transaction an open-market purchase or a grant?

The transaction was a grant-type acquisition, not an open-market trade. It is coded as a grant, award, or other acquisition and the footnote states the 55 shares were acquired through the issuer’s Employee Stock Purchase Plan.

What price per share was reported in the OSI Systems (OSIS) Form 4?

The Form 4 reports a transaction price of $185.90 per share for the 55 common shares. This figure is associated with the acquisition under the Employee Stock Purchase Plan rather than a discretionary open-market purchase on an exchange.

How many OSI Systems (OSIS) shares does Constantine W. Paul hold after this transaction?

After the reported acquisition, Constantine W. Paul directly holds 1,439 shares of OSI Systems common stock. This total includes the 55 shares acquired on June 30, 2026 under the company’s Employee Stock Purchase Plan, as disclosed in the Form 4.

What does the footnote in the OSI Systems (OSIS) Form 4 say about the transaction?

The footnote explains that the 55 shares were "Acquired pursuant to issuer's Employee Stock Purchase Plan." This clarifies the transaction as a routine, compensation-related acquisition under a company benefit plan, rather than a discretionary open-market trading decision.