Packaging Corp of America (NYSE: PKG) SVP granted 1,157 RSUs, holdings corrected

Rhea-AI Filing Summary

Olivier Darla J. reported acquisition or exercise transactions in this Form 4 filing.

Packaging Corp of America senior vice president Darla J. Olivier received a grant of 1,157 restricted stock units, each representing one share of common stock, at a stated price of $0.00 per unit. After this award, she beneficially owns 25,292 shares. A footnote explains that her previously reported holdings of 55,627 shares on an earlier Form 4 should have been 22,217 shares, and the current total reflects correction of that administrative error.

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^*

Olivier Darla J.

(Last) (First) (Middle)

1. N. FIELD CT.

(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)
	SVP

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)		1,157	A	$0	25,292(2)	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. 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. Due to an administrative error, the total number of shares beneficially owned by the reporting person was incorrectly reported as 55,627 shares on the Form 4 filed on February 25, 2025. The correct total should have been 22,217 shares. The total shares beneficially owned as reported on this form reflects a correction of that error.

	Kent A. Pflederer, attorney in fact	02/27/2026
	** 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 did PKG executive Darla J. Olivier report on this Form 4?

Darla J. Olivier reported receiving 1,157 restricted stock units of Packaging Corp of America common stock. These RSUs are a stock-based award, each convertible into one share, increasing her reported beneficial ownership to 25,292 shares after the transaction.

Was the PKG Form 4 transaction a stock purchase or a grant?

The Form 4 shows a grant/award acquisition, not an open-market purchase. Olivier received 1,157 restricted stock units at a stated price of $0.00 per share, reflecting equity compensation rather than a cash-funded stock buy in the market.

How many PKG shares does Darla J. Olivier own after this Form 4?

After the reported RSU grant, Darla J. Olivier beneficially owns 25,292 shares of Packaging Corp of America common stock. This total incorporates both the 1,157 restricted stock units awarded and a correction of previously overstated holdings disclosed in an earlier filing.

What correction to prior PKG share ownership did this Form 4 disclose?

A footnote explains that an earlier Form 4 incorrectly reported Olivier’s beneficial ownership as 55,627 shares. The correct figure should have been 22,217 shares. The 25,292 shares now reported include that correction plus the newly granted restricted stock units.

What does the transaction code "A" mean in this PKG Form 4?

The transaction code “A” indicates a grant, award, or other acquisition of securities. In this case, it reflects 1,157 restricted stock units of Packaging Corp of America common stock awarded to Darla J. Olivier as part of her compensation, rather than a market purchase.

What type of security was granted to the PKG executive in this filing?

The filing describes the security as common stock, and a footnote clarifies these are restricted stock units. Each RSU represents a contingent right to receive one share of Packaging Corp of America common stock, typically subject to vesting or other conditions.