PKG president awarded 11,719 RSUs in stock grant

Hassfurther Thomas A reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Hassfurther Thomas A reported acquisition or exercise transactions in this Form 4 filing.

PACKAGING CORP OF AMERICA President Thomas A. Hassfurther reported an equity award of 11,719 restricted stock units representing common shares. The grant, dated February 25, 2026, was recorded at a price of $0.00 per unit, reflecting a stock-based compensation award rather than a market purchase.

After this award, his directly held common stock totaled 204,265 shares. He also reported indirect holdings of 12,061 shares by a 401(k) plan, 53,862 shares held by his spouse, and 34,293 shares through an investment entity, while disclaiming beneficial ownership of the spouse and investment-entity shares except for any pecuniary interest.

Insider Trade Summary

Grant/Award: 11,719 shares

Grant/Award 4 txns

Insider Hassfurther Thomas A

Role President

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	11,719	$0.00	$0.00
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 204,265 shares (Direct); Common Stock — 12,061 shares (Indirect, by 401(k) plan); Common Stock — 53,862 shares (Indirect, By Spouse); Common Stock — 34,293 shares (Indirect, Through investment entity)

Footnotes (3)

1. F1. Represents restricted stock units ("RSUs") issued to the reporting person. Each RSU represents a contingent right to receive one share of the registrant's common stock.
2. F2. Reporting person disclaims beneficial ownership of shares held by spouse.
3. F3. Reporting person disclaims beneficial ownership of shares held by investment entity except to the extent of his pecuniary interest therein.

FAQ

What insider transaction did PKG President Thomas A. Hassfurther report?

Thomas A. Hassfurther reported an award of 11,719 restricted stock units on February 25, 2026. Each RSU represents a contingent right to receive one share of PACKAGING CORP OF AMERICA common stock, recorded at a grant price of $0.00 per unit.

How many PACKAGING CORP OF AMERICA shares does Thomas A. Hassfurther hold directly after this filing?

After the reported RSU award, Thomas A. Hassfurther directly holds 204,265 shares of PACKAGING CORP OF AMERICA common stock. This direct holding figure includes the impact of the 11,719 restricted stock units granted on February 25, 2026.

What indirect PACKAGING CORP OF AMERICA holdings are associated with Thomas A. Hassfurther?

Indirectly, 12,061 shares are held by a 401(k) plan, 53,862 shares are held by his spouse, and 34,293 shares are held through an investment entity. He disclaims beneficial ownership of spouse and investment-entity shares except for any pecuniary interest.

Are the awarded securities to Thomas A. Hassfurther RSUs or common stock shares?

The reported acquisition is 11,719 restricted stock units, not an immediate cash purchase of common shares. Each RSU represents a contingent right to receive one share of PACKAGING CORP OF AMERICA common stock, as described in the filing’s footnote.

Did Thomas A. Hassfurther buy PACKAGING CORP OF AMERICA shares on the open market in this filing?

No open-market purchase is reported; the filing shows a grant-type acquisition coded as a stock award. The 11,719 units were issued at a stated price of $0.00, indicating compensation rather than a market transaction.

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Accepted by SEC EDGAR 02/26/2026 - 07:32 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^*

Hassfurther Thomas A

(Last) (First) (Middle)

1 N. FIELD COURT

(Street)

LAKE FOREST IL 60045

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
PACKAGING CORP OF AMERICA [ PKG ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

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	02/25/2026		A(1)		11,719	A	$0	204,265	D
Common Stock								12,061	I	by 401(k) plan
Common Stock								53,862	I	By Spouse(2)
Common Stock								34,293	I	Through investment entity(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. Represents restricted stock units ("RSUs") issued to the reporting person. Each RSU represents a contingent right to receive one share of the registrant's common stock.

2. Reporting person disclaims beneficial ownership of shares held by spouse.

3. Reporting person disclaims beneficial ownership of shares held by investment entity except to the extent of his pecuniary interest therein.

	Kent A. Pflederer, attorney in fact	02/26/2026
	** 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.