Packaging Corporation of America
US ˙ NYSE ˙ US6951561090

SecurityPKG / Packaging Corporation of America
InstitutionCWM Advisors, LLC
Latest Disclosed Ownership4,022 shares
Latest Disclosed Value $ 853,549
CWM Advisors, LLC reports 154.07% increase in ownership of PKG / Packaging Corporation of America

On May 13, 2026 - CWM Advisors, LLC filed a 13F-HR/A form disclosing ownership of 4,022 shares of Packaging Corporation of America (US:PKG) valued at $853,549 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,583 shares of Packaging Corporation of America. This represents a change in shares of 154.07% during the quarter. The current value of the position is $902,497 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.

Upgrade to unlock premium data and export to Excel .

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/A-1 PACKAGING CORP AMER COM 695156109 4,022 2,439 154.07 854 161.66 0.1712
2026-04-23 2026-03-31 13F PACKAGING CORP AMER COM 695156109 1,574 -9 334 0.0275
2026-02-17 2025-12-31 13F PACKAGING CORP AMER COM 695156109 1,583 161 11.32 326 5.50 0.0294
2025-10-15 2025-09-30 13F PACKAGING CORP AMER COM 695156109 1,422 -65 -4.37 310 10.36 0.0302
2025-07-24 2025-06-30 13F PACKAGING CORP AMER COM 695156109 1,487 -105 -6.60 280 -11.11 0.0305
2025-06-03 2025-03-31 13F PACKAGING CORP AMER COM 695156109 1,592 443 38.56 315 22.09 0.0375
2025-01-17 2024-12-31 13F PACKAGING CORP AMER COM 695156109 1,149 -171 -12.95 259 -9.15 0.0289
2024-10-10 2024-09-30 13F PACKAGING CORP AMER COM 695156109 1,320 -123 -8.52 284 7.98 0.0291
2024-08-12 2024-06-30 13F PACKAGING CORP AMER COM 695156109 1,443 -891 -38.17 263 -40.50 0.0304
2024-05-07 2024-03-31 13F PACKAGING CORP AMER COM 695156109 2,334 -395 -14.47 443 -0.45 0.0453
2024-02-12 2023-12-31 13F PACKAGING CORP AMER COM 695156109 2,729 354 14.91 445 21.98 0.0489
2023-10-26 2023-09-30 13F PACKAGING CORP AMER COM 695156109 2,375 -594 -20.01 365 -7.14 0.0466
2023-07-31 2023-06-30 13F PACKAGING CORP AMER COM 695156109 2,969 -43 -1.43 392 -6.22 0.0475
2023-04-24 2023-03-31 13F PACKAGING CORP AMER COM 695156109 3,012 30 1.01 418 9.71 0.0532
2023-01-26 2022-12-31 13F PACKAGING CORP AMER COM 695156109 2,982 70 2.40 381 16.51 0.0491
2022-11-07 2022-09-30 13F PACKAGING CORP AMER COM 695156109 2,912 419 16.81 327 -4.66 0.0462
2022-08-10 2022-06-30 13F PACKAGING CORP AMER COM 695156109 2,493 -153 -5.78 343 -16.95 0.0455
2022-04-21 2022-03-31 13F PACKAGING CORP AMER COM 695156109 2,646 -170 -6.04 413 7.83 0.0478
2022-02-14 2021-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 2,816 46 1.66 383 0.52 0.0439
2021-11-09 2021-09-30 13F PACKAGING CORP AMER COM 695156109 2,770 2,770 381 0.0482
2020-08-12 2020-06-30 13F PACKAGING CORP AMER COM 695156109 0 -436 -100.00 0 -100.00
2020-05-08 2020-03-31 13F PACKAGING CORP AMER COM 695156109 436 436 38 0.0152
2019-02-22 2018-03-31 13F/A-1 Packaging Corp of America COM 695156109 0 -474 -100.00 0 -100.00
2019-02-21 2017-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 474 474 57 0.0485
2018-02-15 2017-12-31 13F Packaging Corp of America COM 695156109 474 57
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.