[Form 4] APTARGROUP, INC. Insider Trading Activity

Rhea-AI Filing Summary

APTARGROUP, INC. Chief Human Resources Officer Shiela Vinczeller reported a tax-related share disposition. On February 24, 2026, she transferred 219 shares of common stock at $144.14 per share to cover tax withholding obligations, a non-open-market transaction coded as a tax-withholding disposition. After this transaction, she directly owned 24,747 common shares.

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

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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^*

Vinczeller Shiela

(Last) (First) (Middle)

265 EXCHANGE DRIVE

SUITE 301

(Street)

CRYSTAL LAKE IL 60014

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
APTARGROUP, INC. [ ATR ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Human Resources Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/24/2026

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

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

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

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	02/24/2026		F		219	D	$144.14	24,747	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:

	Shiela Vinczeller by Irene Hudson as attorney-in-fact	02/25/2026
	** 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.

FAQ

What insider transaction did APTARGROUP (ATR) report for Shiela Vinczeller?

APTARGROUP reported that Chief Human Resources Officer Shiela Vinczeller disposed of 219 common shares in a tax-withholding transaction. This was a non-open-market transfer to satisfy tax obligations associated with equity compensation.

Was the APTARGROUP (ATR) insider transaction an open-market sale?

No, the transaction was not an open-market sale. It was coded as a tax-withholding disposition, meaning shares were delivered to cover tax liabilities tied to equity awards rather than sold on the open market.

How many APTARGROUP (ATR) shares did Shiela Vinczeller dispose of and at what price?

She disposed of 219 APTARGROUP common shares at $144.14 per share. The disposition was reported as a tax-withholding transaction, not a voluntary buy or sell in the public market.

How many APTARGROUP (ATR) shares does Shiela Vinczeller own after the transaction?

After the tax-withholding disposition, Shiela Vinczeller directly owns 24,747 APTARGROUP common shares. This post-transaction balance reflects her remaining direct equity stake following the 219-share transfer for tax purposes.

What does transaction code F mean in the APTARGROUP (ATR) Form 4?

Transaction code F indicates payment of an exercise price or tax liability by delivering securities. In this case, it shows that 219 APTARGROUP shares were used to cover tax withholding rather than representing an open-market stock sale.