Packaging Corporation of America
US ˙ NYSE ˙ US6951561090

SecurityPKG / Packaging Corporation of America
InstitutionAmalgamated Bank
Latest Disclosed Ownership16,361 shares
Latest Disclosed Value $ 3,472
Amalgamated Bank reports 1.31% decrease in ownership of PKG / Packaging Corporation of America

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 16,361 shares of Packaging Corporation of America (US:PKG) valued at $3,472,131 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 16,578 shares of Packaging Corporation of America. This represents a change in shares of -1.31% during the quarter. The current value of the position is $3,671,245 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)
2026-05-08 2026-03-31 13F PACKAGING CORP AMER COM 695156109 16,361 -217 -1.31 3 0.00 0.0266
2026-02-05 2025-12-31 13F PACKAGING CORP AMER COM 695156109 16,578 -735 -4.25 3 0.00 0.0247
2025-10-29 2025-09-30 13F PACKAGING CORP AMER COM 695156109 17,313 -348 -1.97 4 0.00 0.0270
2025-08-04 2025-06-30 13F PACKAGING CORP AMER COM 695156109 17,661 -430 -2.38 3 0.00 0.0257
2025-04-25 2025-03-31 13F PACKAGING CORP AMER COM 695156109 18,091 130 0.72 4 -25.00 0.0307
2025-02-04 2024-12-31 13F PACKAGING CORP AMER COM 695156109 17,961 -316 -1.73 4 33.33 0.0332
2024-10-30 2024-09-30 13F PACKAGING CORP AMER COM 695156109 18,277 162 0.89 4 0.00 0.0324
2024-08-12 2024-06-30 13F PACKAGING CORP AMER COM 695156109 18,115 -8,988 -33.16 3 -40.00 0.0282
2024-04-23 2024-03-31 13F PACKAGING CORP AMER COM 695156109 27,103 -2,259 -7.69 5 25.00 0.0440
2024-02-06 2023-12-31 13F PACKAGING CORP AMER COM 695156109 29,362 1,048 3.70 5 0.00 0.0382
2023-11-08 2023-09-30 13F PACKAGING CORP AMER COM 695156109 28,314 153 0.54 4 33.33 0.0370
2023-08-11 2023-06-30 13F PACKAGING CORP AMER COM 695156109 28,161 -2,475 -8.08 4 -25.00 0.0301
2023-05-02 2023-03-31 13F PACKAGING CORP AMER COM 695156109 30,636 -5,562 -15.37 4 0.00 0.0363
2023-02-10 2022-12-31 13F PACKAGING CORP AMER COM 695156109 36,198 3,610 11.08 5 -99.89 0.0413
2022-11-09 2022-09-30 13F PACKAGING CORP AMER COM 695156109 32,588 -2,408 -6.88 3,659 -23.96 0.0353
2022-08-15 2022-06-30 13F PACKAGING CORP AMER COM 695156109 34,996 3,990 12.87 4,812 -0.58 0.0449
2022-08-25 2022-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 31,006 -1,705 -5.21 4,840 8.67 0.0376
2022-06-30 2022-03-31 13F PACKAGING CORP AMER COM 695156109 31,006 -1,705 4,840 0.0384
2022-02-15 2021-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 32,711 -2,903 -8.15 4,454 -9.01 0.0329
2022-02-15 2021-12-31 13F PACKAGING CORP AMER COM 695156109 32,711 -2,903 4,454 0.0329
2021-10-29 2021-09-30 13F PACKAGING CORP AMER COM 695156109 35,614 -921 -2.52 4,895 -1.07 0.0413
2021-08-16 2021-06-30 13F PACKAGING CORP AMER COM 695156109 36,535 24,495 203.45 4,948 205.62 0.0397
2021-05-13 2021-03-31 13F PACKAGING CORP AMER COM 695156109 12,040 -768 -6.00 1,619 -8.32 0.0607
2021-02-12 2020-12-31 13F PACKAGING CORP AMER COM 695156109 12,808 6 0.05 1,766 26.50 0.0669
2020-10-30 2020-09-30 13F PACKAGING CORP AMER COM 695156109 12,802 -70 -0.54 1,396 8.64 0.0607
2020-08-10 2020-06-30 13F PACKAGING CORP AMER COM 695156109 12,872 -8,655 -40.21 1,285 -31.25 0.0595
2020-05-13 2020-03-31 13F PACKAGING CORP AMER COM 695156109 21,527 -453 -2.06 1,869 -24.09 0.0457
2020-02-13 2019-12-31 13F PACKAGING CORP AMER COM 695156109 21,980 2,275 11.55 2,462 17.74 0.0453
2019-11-13 2019-09-30 13F PACKAGING CORP AMER COM 695156109 19,705 -325 -1.62 2,091 9.53 0.0440
2019-08-14 2019-06-30 13F PACKAGING CORP AMER COM 695156109 20,030 -2,557 -11.32 1,909 -14.97 0.0446
2019-05-15 2019-03-31 13F PACKAGING CORP AMER COM 695156109 22,587 309 1.39 2,245 20.76 0.0544
2019-02-15 2018-12-31 13F PACKAGING CORP AMER COM 695156109 22,278 8,139 57.56 1,859 19.86 0.0527
2018-11-14 2018-09-30 13F PACKAGING CORP AMER COM 695156109 14,139 -9,185 -39.38 1,551 -40.51 0.0384
2018-07-18 2018-06-30 13F PACKAGING CORP AMER COM 695156109 23,324 1,878 8.76 2,607 7.86 0.0637
2018-05-22 2018-03-31 13F PACKAGING CORP AMER COM 695156109 21,446 1,270 6.29 2,417 -0.62 0.0641
2018-02-13 2017-12-31 13F PACKAGING CORP AMER COM 695156109 20,176 1,000 5.21 2,432 10.60 0.0658
2017-11-09 2017-09-30 13F PACKAGING CORP AMER COM 695156109 19,176 137 0.72 2,199 3.68 0.0685
2017-08-10 2017-06-30 13F PACKAGING CORP AMER COM 695156109 19,039 4,001 26.61 2,121 53.92 0.0695
2017-05-12 2017-03-31 13F PACKAGING CORP AMER COM 695156109 15,038 -3,001 -16.64 1,378 -9.93 0.0686
2017-02-14 2016-12-31 13F PACKAGING CORP AMER COM 695156109 18,039 1,723 10.56 1,530 15.38 0.0692
2016-11-15 2016-09-30 13F/A-1 PACKAGING CORP AMER COM 695156109 16,316 -16 -0.10 1,326 5.49 0.0769
2016-08-16 2016-06-30 13F PACKAGING CORP AMER COM 695156109 16,332 4,317 35.93 1,257 73.14 0.0727
2016-05-11 2016-03-31 13F PACKAGING CORP AMER COM 695156109 12,015 897 8.07 726 3.57 0.0707
2016-02-10 2015-12-31 13F PACKAGING CORP AMER COM 695156109 11,118 -774 -6.51 701 -1.96 0.0865
2015-11-04 2015-09-30 13F PACKAGING CORP AMER COM 695156109 11,892 167 1.42 715 -2.46 0.0750
2015-07-10 2015-06-30 13F PACKAGING CORP AMER COM 695156109 11,725 166 1.44 733 -18.92 0.0720
2015-04-22 2015-03-31 13F PACKAGING CORP AMER COM 695156109 11,559 11,559 0.00 904 0.1104
2015-01-29 2014-12-31 13F PACKAGING CORP AMER COM 695156109 0 -11,105 -100.00 0 -100.00
2014-11-14 2014-09-30 13F PACKAGING CORP AMER COM 695156109 11,105 95 0.86 709 -9.91 0.1055
2014-08-11 2014-06-30 13F PACKAGING CORP AMER COM 695156109 11,010 -468 -4.08 787 -2.60 0.1188
2014-05-12 2014-03-31 13F PACKAGING CORP AMER COM 695156109 11,478 -82 -0.71 808 10.38 0.1392
2014-02-13 2013-12-31 13F PACKAGING CORP AMER COM 695156109 11,560 11,560 732 0.1244
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.