Packaging Corporation of America
MX ˙ BMV ˙ US6951561090
SecurityMX:PKG / Packaging Corporation of America
InstitutionSoutheast Asset Advisors Inc.
Latest Disclosed Ownership7,208 shares
Latest Disclosed Value $ 1,529,610
Southeast Asset Advisors Inc. reports 43.59% increase in ownership of PKG / Packaging Corporation of America

On May 13, 2026 - Southeast Asset Advisors Inc. filed a 13F-HR form disclosing ownership of 7,208 shares of Packaging Corporation of America (MX:PKG) valued at $1,529,610 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 5,020 shares of Packaging Corporation of America. This represents a change in shares of 43.59% 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)
2026-05-13 2026-03-31 13F PACKAGING CORP AMER COM 695156109 7,208 2,188 43.59 1,530 47.73 0.1676
2026-02-13 2025-12-31 13F PACKAGING CORP AMER COM 695156109 5,020 14 0.28 1,035 -5.05 0.0983
2025-11-07 2025-09-30 13F PACKAGING CORP AMER COM 695156109 5,006 15 0.30 1,091 15.96 0.1188
2025-08-12 2025-06-30 13F PACKAGING CORP AMER COM 695156109 4,991 16 0.32 941 -4.57 0.1118
2025-05-14 2025-03-31 13F PACKAGING CORP AMER COM 695156109 4,975 13 0.26 985 -11.82 0.1208
2025-02-13 2024-12-31 13F PACKAGING CORP AMER COM 695156109 4,962 -119 -2.34 1,117 2.10 0.1370
2024-11-13 2024-09-30 13F PACKAGING CORP AMER COM 695156109 5,081 16 0.32 1,095 18.40 0.1211
2024-08-12 2024-06-30 13F PACKAGING CORP AMER COM 695156109 5,065 18 0.36 925 -3.45 0.1112
2024-05-14 2024-03-31 13F PACKAGING CORP AMER COM 695156109 5,047 18 0.36 958 16.85 0.1153
2024-02-13 2023-12-31 13F PACKAGING CORP AMER COM 695156109 5,029 20 0.40 819 6.50 0.1086
2023-11-14 2023-09-30 13F PACKAGING CORP AMER COM 695156109 5,009 23 0.46 769 16.87 0.1081
2023-08-10 2023-06-30 13F PACKAGING CORP AMER COM 695156109 4,986 21 0.42 659 -4.50 0.0938
2023-05-12 2023-03-31 13F PACKAGING CORP AMER COM 695156109 4,965 23 0.47 689 9.02 0.1034
2023-02-09 2022-12-31 13F PACKAGING CORP AMER COM 695156109 4,942 26 0.53 632 14.49 0.1004
2022-11-04 2022-09-30 13F PACKAGING CORP AMER COM 695156109 4,916 21 0.43 552 -17.98 0.0938
2022-08-15 2022-06-30 13F PACKAGING CORP AMER COM 695156109 4,895 14 0.29 673 -11.68 0.1062
2022-05-13 2022-03-31 13F PACKAGING CORP AMER COM 695156109 4,881 17 0.35 762 15.11 0.1011
2022-02-14 2021-12-31 13F PACKAGING CORP AMER COM 695156109 4,864 17 0.35 662 -0.60 0.0908
2021-11-15 2021-09-30 13F PACKAGING CORP AMER COM 695156109 4,847 -234 -4.61 666 -3.20 0.1093
2021-08-13 2021-06-30 13F PACKAGING CORP AMER COM 695156109 5,081 17 0.34 688 1.03 0.1127
2021-05-13 2021-03-31 13F PACKAGING CORP AMER COM 695156109 5,064 16 0.32 681 -2.16 0.1222
2021-02-16 2020-12-31 13F PACKAGING CORP AMER COM 695156109 5,048 15 0.30 696 26.78 0.1381
2020-11-12 2020-09-30 13F PACKAGING CORP AMER COM 695156109 5,033 17 0.34 549 9.58 0.1230
2020-08-14 2020-06-30 13F PACKAGING CORP AMER COM 695156109 5,016 17 0.34 501 15.44 0.1242
2020-04-10 2020-03-31 13F PACKAGING CORP AMER COM 695156109 4,999 314 6.70 434 -17.33 0.1267
2020-02-14 2019-12-31 13F PACKAGING CORP AMER COM 695156109 4,685 14 0.30 525 5.85 0.1248
2019-11-14 2019-09-30 13F PACKAGING CORP AMER COM 695156109 4,671 14 0.30 496 11.71 0.1267
2019-08-14 2019-06-30 13F PACKAGING CORP AMER COM 695156109 4,657 14 0.30 444 -3.69 0.1164
2019-05-15 2019-03-31 13F PACKAGING CORP AMER COM 695156109 4,643 16 0.35 461 19.43 0.1234
2019-02-13 2018-12-31 13F PACKAGING CORP AMER COM 695156109 4,627 17 0.37 386 -23.72 0.1155
2018-11-14 2018-09-30 13F PACKAGING CORP AMER COM 695156109 4,610 12 0.26 506 -1.56 0.1356
2018-08-13 2018-06-30 13F PACKAGING CORP AMER COM 695156109 4,598 10 0.22 514 -0.58 0.1480
2018-05-15 2018-03-31 13F PACKAGING CORP AMER COM 695156109 4,588 9 0.20 517 -6.34 0.1532
2018-02-14 2017-12-31 13F PACKAGING CORP AMER COM 695156109 4,579 9 0.20 552 5.34 0.1670
2017-11-14 2017-09-30 13F PACKAGING CORP AMER COM 695156109 4,570 10 0.22 524 3.15 0.1658
2017-08-14 2017-06-30 13F PACKAGING CORP AMER COM 695156109 4,560 12 0.26 508 21.82 0.1650
2017-05-15 2017-03-31 13F PACKAGING CORP AMER COM 695156109 4,548 525 13.05 417 22.29 0.1303
2017-02-14 2016-12-31 13F PACKAGING CORP AMER COM 695156109 4,023 11 0.27 341 4.60 0.1076
2016-11-14 2016-09-30 13F PACKAGING CORP AMER COM 695156109 4,012 -238 -5.60 326 14.79 0.1094
2016-08-12 2016-06-30 13F PACKAGING CORP AMER COM 695156109 4,250 0 0.00 284 10.51 0.0935
2016-05-16 2016-03-31 13F PACKAGING CORP AMER COM 695156109 4,250 0 0.00 257 -4.10 0.0836
2016-02-16 2015-12-31 13F PACKAGING CORP AMER COM 695156109 4,250 4,250 268 0.0911
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.