Packaging Corporation of America
MX ˙ BMV ˙ US6951561090
SecurityMX:PKG / Packaging Corporation of America
InstitutionCaldwell Trust Co
Latest Disclosed Ownership3,327 shares
Latest Disclosed Value $ 706,056
Caldwell Trust Co reports 1.97% decrease in ownership of PKG / Packaging Corporation of America

On April 22, 2026 - Caldwell Trust Co filed a 13F-HR form disclosing ownership of 3,327 shares of Packaging Corporation of America (MX:PKG) valued at $706,056 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 3,394 shares of Packaging Corporation of America. This represents a change in shares of -1.97% during the quarter.

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)
2026-04-22 2026-03-31 13F PACKAGING CORP AMER COM 695156109 3,327 -67 -1.97 706 1.00 0.0631
2026-01-30 2025-12-31 13F PACKAGING CORP AMER COM 695156109 3,394 -70 -2.02 700 -7.29 0.0622
2025-10-23 2025-09-30 13F PACKAGING CORP AMER COM 695156109 3,464 -200 -5.46 755 9.28 0.0706
2025-09-22 2025-06-30 13F PACKAGING CORP AMER COM 695156109 3,664 -33 -0.89 690 -5.74 0.0690
2025-09-23 2025-03-31 13F PACKAGING CORP AMER COM 695156109 3,697 -38 -1.02 732 -12.86 0.0785
2025-09-24 2024-12-31 13F PACKAGING CORP AMER COM 695156109 3,735 -655 -14.92 841 -11.11 0.0878
2025-09-24 2024-09-30 13F PACKAGING CORP AMER COM 695156109 4,390 -197 -4.29 946 12.90 0.0993
2025-09-24 2024-06-30 13F PACKAGING CORP AMER COM 695156109 4,587 0 0.00 837 -3.79 0.0927
2025-09-24 2024-03-31 13F PACKAGING CORP AMER COM 695156109 4,587 -409 -8.19 871 7.01 0.1013
2025-10-01 2023-12-31 13F PACKAGING CORP AMER COM 695156109 4,996 -68 -1.34 814 4.63 0.1028
2025-10-01 2023-09-30 13F PACKAGING CORP AMER COM 695156109 5,064 -134 -2.58 778 13.27 0.1061
2025-10-01 2023-06-30 13F PACKAGING CORP AMER COM 695156109 5,198 -34 -0.65 687 -5.51 0.0896
2025-10-01 2023-03-31 13F PACKAGING CORP AMER COM 695156109 5,232 -34 -0.65 726 7.88 0.1008
2025-10-01 2022-12-31 13F PACKAGING CORP AMER COM 695156109 5,266 107 2.07 674 16.23 0.0953
2025-10-01 2022-09-30 13F PACKAGING CORP AMER COM 695156109 5,159 -290 -5.32 579 -22.70 0.0860
2025-10-02 2022-06-30 13F PACKAGING CORP AMER COM 695156109 5,449 196 3.73 749 -8.66 0.1031
2025-10-02 2022-03-31 13F PACKAGING CORP AMER COM 695156109 5,253 174 3.43 820 18.67 0.0977
2025-10-02 2021-12-31 13F PACKAGING CORP AMER COM 695156109 5,079 0 0.00 692 -1.00 0.0795
2025-10-02 2021-09-30 13F PACKAGING CORP AMER COM 695156109 5,079 -41 -0.80 698 0.72 0.0882
2025-10-02 2021-06-30 13F PACKAGING CORP AMER COM 695156109 5,120 389 8.22 693 8.96 0.0907
2025-10-02 2021-03-31 13F PACKAGING CORP AMER COM 695156109 4,731 333 7.57 636 4.95 0.0887
2025-10-02 2020-12-31 13F PACKAGING CORP AMER COM 695156109 4,398 -172 -3.76 607 21.69 0.0918
2025-10-02 2020-09-30 13F PACKAGING CORP AMER COM 695156109 4,570 -142 -3.01 498 5.96 0.0819
2025-10-02 2020-06-30 13F PACKAGING CORP AMER COM 695156109 4,712 -45 -0.95 470 13.80 0.0788
2025-10-02 2020-03-31 13F PACKAGING CORP AMER COM 695156109 4,757 -153 -3.12 413 -24.77 0.0782
2025-10-06 2019-12-31 13F PACKAGING CORP AMER COM 695156109 4,910 4,910 550 0.0840
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.