Packaging Corporation of America
US ˙ NYSE ˙ US6951561090

SecurityPKG / Packaging Corporation of America
InstitutionCwm, Llc
Latest Disclosed Ownership19,207 shares
Latest Disclosed Value $ 4,076,064
Cwm, Llc reports 3.22% decrease in ownership of PKG / Packaging Corporation of America

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 19,207 shares of Packaging Corporation of America (US:PKG) valued at $4,076,110 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 19,847 shares of Packaging Corporation of America. This represents a change in shares of -3.22% during the quarter. The current value of the position is $4,309,859 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)
2026-05-14 2026-03-31 13F PACKAGING CORP AMER COM 695156109 19,207 -640 -3.22 4,076 101,800.00 0.0107
2026-01-26 2025-12-31 13F PACKAGING CORP AMER COM 695156109 19,847 -10,873 -35.39 4 -33.33 0.0111
2025-10-15 2025-09-30 13F PACKAGING CORP AMER COM 695156109 30,720 16,662 118.52 7 200.00 0.0201
2025-07-25 2025-06-30 13F PACKAGING CORP AMER COM 695156109 14,058 2,294 19.50 3 0.00 0.0093
2025-05-01 2025-03-31 13F PACKAGING CORP AMER COM 695156109 11,764 1,917 19.47 2 0.00 0.0093
2025-02-04 2024-12-31 13F PACKAGING CORP AMER COM 695156109 9,847 373 3.94 2 0.00 0.0092
2024-10-08 2024-09-30 13F PACKAGING CORP AMER COM 695156109 9,474 4,290 82.75 2 0.0088
2024-07-10 2024-06-30 13F PACKAGING CORP AMER COM 695156109 5,184 2,430 88.24 1 0.0045
2024-04-05 2024-03-31 13F PACKAGING CORP AMER COM 695156109 2,754 102 3.85 1 0.0025
2024-02-01 2023-12-31 13F PACKAGING CORP AMER COM 695156109 2,652 845 46.76 0 0.0023
2023-10-11 2023-09-30 13F PACKAGING CORP AMER COM 695156109 1,807 107 6.29 0 0.0017
2023-08-03 2023-06-30 13F PACKAGING CORP AMER COM 695156109 1,700 161 10.46 0 0.0014
2023-05-01 2023-03-31 13F PACKAGING CORP AMER COM 695156109 1,539 -223 -12.66 0 0.0014
2023-02-01 2022-12-31 13F PACKAGING CORP AMER COM 695156109 1,762 -2 -0.11 0 -100.00 0.0017
2022-10-27 2022-09-30 13F PACKAGING CORP AMER COM 695156109 1,764 140 8.62 198 -11.21 0.0016
2022-07-28 2022-06-30 13F PACKAGING CORP AMER COM 695156109 1,624 627 62.89 223 42.95 0.0017
2022-04-21 2022-03-31 13F PACKAGING CORP AMER COM 695156109 997 128 14.73 156 32.20 0.0011
2022-01-31 2021-12-31 13F PACKAGING CORP AMER COM 695156109 869 749 624.17 118 637.50 0.0008
2021-09-15 2021-06-30 13F/A-1 PACKAGING CORP AMER COM 695156109 120 0 0.00 16 0.00 0.0001
2021-07-29 2021-06-30 13F PACKAGING CORP AMER COM 695156109 120 0 16 0.0001
2021-09-15 2021-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 120 0 0.00 16 0.00 0.0001
2021-04-27 2021-03-31 13F PACKAGING CORP AMER COM 695156109 294 174 40 0.0004
2021-09-15 2020-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 120 0 0.00 16 0.00 0.0001
2021-01-27 2020-12-31 13F PACKAGING CORP AMER COM 695156109 81 -39 11 0.0001
2021-09-15 2020-09-30 13F/A-1 PACKAGING CORP AMER COM 695156109 120 0 0.00 16 0.00 0.0001
2020-10-19 2020-09-30 13F PACKAGING CORP AMER COM 695156109 306 186 33 0.0004
2021-09-15 2020-06-30 13F/A-1 PACKAGING CORP AMER COM 695156109 120 0 0.00 16 0.00 0.0001
2020-07-22 2020-06-30 13F PACKAGING CORP AMER COM 695156109 272 152 27 0.0003
2021-09-15 2020-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 120 0 0.00 16 0.00 0.0001
2020-04-28 2020-03-31 13F PACKAGING CORP AMER COM 695156109 228 108 20 0.0003
2021-09-14 2019-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 120 0 0.00 16 0.00 0.0001
2020-01-27 2019-12-31 13F PACKAGING CORP AMER COM 695156109 231 111 26 0.0003
2021-09-14 2019-09-30 13F/A-1 PACKAGING CORP AMER COM 695156109 120 0 0.00 16 0.00 0.0001
2019-10-22 2019-09-30 13F PACKAGING CORP AMER COM 695156109 283 163 30 0.0004
2021-09-14 2019-06-30 13F/A-1 PACKAGING CORP AMER COM 695156109 120 0 0.00 16 0.00 0.0001
2019-07-31 2019-06-30 13F PACKAGING CORP AMER COM 695156109 210 90 20 0.0003
2021-09-02 2019-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 120 32 36.36 16 128.57 0.0001
2019-04-22 2019-03-31 13F PACKAGING CORP AMER COM 695156109 57 -31 6 0.0001
2019-01-25 2018-12-31 13F PACKAGING CORP AMER COM 695156109 88 39 79.59 7 40.00 0.0002
2018-10-29 2018-09-30 13F PACKAGING CORP AMER COM 695156109 49 -104 -67.97 5 -70.59 0.0001
2018-07-31 2018-06-30 13F PACKAGING CORP AMER COM 695156109 153 0 0.00 17 0.00 0.0006
2018-04-26 2018-03-31 13F PACKAGING CORP AMER COM 695156109 153 120 363.64 17 325.00 0.0007
2018-01-16 2017-12-31 13F PACKAGING CORP AMER COM 695156109 33 33 4 0.0002
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.