Packaging Corporation of America
US ˙ NYSE ˙ US6951561090

SecurityPKG / Packaging Corporation of America
InstitutionLifeworks Advisors, LLC
Latest Disclosed Ownership2,451 shares
Latest Disclosed Value $ 520,062
Lifeworks Advisors, LLC reports 0.91% increase in ownership of PKG / Packaging Corporation of America

On May 4, 2026 - Lifeworks Advisors, LLC filed a 13F-HR form disclosing ownership of 2,451 shares of Packaging Corporation of America (US:PKG) valued at $520,151 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,429 shares of Packaging Corporation of America. This represents a change in shares of 0.91% during the quarter. The current value of the position is $549,980 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-04 2026-03-31 13F PACKAGING CORP AMER COM 695156109 2,451 22 0.91 520 4.00 0.0667
2026-02-13 2025-12-31 13F PACKAGING CORP AMER COM 695156109 2,429 218 9.86 501 3.95 0.0649
2025-11-12 2025-09-30 13F PACKAGING CORP AMER COM 695156109 2,211 885 66.74 482 93.17 0.0642
2025-08-05 2025-06-30 13F PACKAGING CORP AMER COM 695156109 1,326 -16 -1.19 250 -6.04 0.0373
2025-05-06 2025-03-31 13F PACKAGING CORP AMER COM 695156109 1,342 -24 -1.76 266 -13.68 0.0442
2025-02-07 2024-12-31 13F PACKAGING CORP AMER COM 695156109 1,366 -1,033 -43.06 308 -40.50 0.0555
2024-11-06 2024-09-30 13F PACKAGING CORP AMER COM 695156109 2,399 24 1.01 517 19.17 0.1016
2024-08-13 2024-06-30 13F PACKAGING CORP AMER COM 695156109 2,375 -821 -25.69 434 -28.55 0.1208
2024-05-10 2024-03-31 13F PACKAGING CORP AMER COM 695156109 3,196 -606 -15.94 606 -2.10 0.1697
2024-02-12 2023-12-31 13F PACKAGING CORP AMER COM 695156109 3,802 -523 -12.09 619 -6.78 0.2137
2023-11-01 2023-09-30 13F PACKAGING CORP AMER COM 695156109 4,325 1,082 33.36 664 55.14 0.2583
2023-08-02 2023-06-30 13F PACKAGING CORP AMER COM 695156109 3,243 1,329 69.44 429 61.51 0.1825
2023-05-15 2023-03-31 13F PACKAGING CORP AMER COM 695156109 1,914 1,914 266 0.1255
2023-02-14 2022-12-31 13F PACKAGING CORP AMER COM 695156109 0 -1,734 -100.00 0 -100.00
2022-11-14 2022-09-30 13F PACKAGING CORP AMER COM 695156109 1,734 1,734 208 0.1183
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.