AptarGroup (NYSE: ATR) CEO uses 3,455 shares for tax withholding

Rhea-AI Filing Summary

AptarGroup, Inc. President and CEO Stephan B. Tanda reported a tax-related share disposition. On March 15, 2026, 3,455 shares of Common Stock were delivered at $128.65 per share to cover tax obligations, coded as a tax-withholding disposition rather than an open-market sale.

Following this transaction, Tanda directly owns 202,758 AptarGroup shares. He also has an indirect holding of 3,138 shares through a 401(k) trust, according to the filing.

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^*

Tanda Stephan B.

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
03/15/2026

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								3,138	I	By 401(k) trust
Common Stock	03/15/2026		F		3,455	D	$128.65	202,758	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:

	Stephan Tanda by Irene Hudson as attorney-in-fact	03/17/2026
	** 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.
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FAQ

What insider transaction did AptarGroup (ATR) report for Stephan B. Tanda?

AptarGroup reported that CEO Stephan B. Tanda delivered 3,455 shares of Common Stock to cover tax obligations. The transaction, dated March 15, 2026, is coded as tax-withholding, meaning it was not an open-market sale of shares.

Was the AptarGroup (ATR) CEO’s Form 4 transaction a share sale?

The CEO’s Form 4 transaction was not an open-market sale. It was a tax-withholding disposition, where 3,455 shares at $128.65 per share were delivered to satisfy tax obligations tied to equity compensation.

How many AptarGroup (ATR) shares does CEO Stephan B. Tanda hold after the transaction?

After the reported tax-withholding event, Stephan B. Tanda directly holds 202,758 shares of AptarGroup Common Stock. He also indirectly holds 3,138 shares through a 401(k) trust, as disclosed in the Form 4 filing.

What price per share was used in the AptarGroup (ATR) CEO’s tax-withholding transaction?

The tax-withholding disposition used a price of $128.65 per share for the 3,455 shares delivered. This price is used in the Form 4 to calculate the value of shares applied toward the executive’s tax liability.

Does the AptarGroup (ATR) Form 4 show any open-market buying or selling by the CEO?

The Form 4 does not show any open-market purchases or sales by the CEO. It only reports a tax-withholding disposition of 3,455 shares and an updated indirect holding of 3,138 shares in a 401(k) trust.

How are the AptarGroup (ATR) CEO’s indirect shares held according to the Form 4?

The Form 4 states that 3,138 shares of AptarGroup Common Stock are held indirectly for CEO Stephan B. Tanda by a 401(k) trust. These shares are separate from his 202,758 directly owned shares.