Packaging Corporation of America
US ˙ NYSE ˙ US6951561090

SecurityPKG / Packaging Corporation of America
InstitutionPrincipal Street Partners, LLC
Latest Disclosed Ownership1,343 shares
Latest Disclosed Value $ 285,030
Principal Street Partners, LLC reports 95.55% decrease in ownership of PKG / Packaging Corporation of America

On May 15, 2026 - Principal Street Partners, LLC filed a 13F-HR form disclosing ownership of 1,343 shares of Packaging Corporation of America (US:PKG) valued at $285,011 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 30,180 shares of Packaging Corporation of America. This represents a change in shares of -95.55% during the quarter. The current value of the position is $301,356 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)
2026-05-15 2026-03-31 13F PACKAGING CORP AMERICA Common stock 695156109 1,343 -28,837 -95.55 285 -95.42 0.0465
2026-02-17 2025-12-31 13F PACKAGING CORP AMERICA Common stock 695156109 30,180 -63 -0.21 6,224 -5.57 1.0498
2025-11-14 2025-09-30 13F PACKAGING CORP AMERICA Common stock 695156109 30,243 -1,209 -3.84 6,591 11.19 1.0519
2025-08-14 2025-06-30 13F PACKAGING CORP AMERICA Common stock 695156109 31,452 1,930 6.54 5,927 1.40 0.5812
2025-05-15 2025-03-31 13F PACKAGING CORP AMERICA Common stock 695156109 29,522 458 1.58 5,846 -10.67 1.0873
2025-02-18 2024-12-31 13F PACKAGING CORP AMERICA Common stock 695156109 29,064 189 0.65 6,543 5.24 1.2867
2024-11-13 2024-09-30 13F PACKAGING CORP AMERICA Common stock 695156109 28,875 -8,789 -23.34 6,218 -9.57 1.0167
2024-08-14 2024-06-30 13F PACKAGING CORP AMERICA Common stock 695156109 37,664 -195 -0.52 6,876 -3.06 1.2315
2024-05-15 2024-03-31 13F PACKAGING CORP AMERICA Common stock 695156109 37,859 8,534 29.10 7,092 48.46 1.3406
2024-02-07 2023-12-31 13F PACKAGING CORP AMERICA Common stock 695156109 29,325 -9,258 -24.00 4,777 -19.36 1.1525
2023-11-01 2023-09-30 13F PACKAGING CORP AMERICA Common stock 695156109 38,583 -721 -1.83 5,924 14.05 1.1738
2023-08-21 2023-06-30 13F/A-1 PACKAGING CORP AMERICA Common stock 695156109 39,304 -1,837 -4.47 5,194 -9.05 1.2346
2023-08-15 2023-06-30 13F PACKAGING CORP AMERICA Common stock 695156109 41,141 0 5,712 1.4435
2023-05-11 2023-03-31 13F PACKAGING CORP AMERICA Common stock 695156109 41,141 59 0.14 5,712 8.70 1.4435
2023-02-15 2022-12-31 13F PACKAGING CORP AMERICA Common stock 695156109 41,082 41,082 5,255 1.3240
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.