Packaging Corporation of America
US ˙ NYSE ˙ US6951561090

SecurityPKG / Packaging Corporation of America
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership42,719 shares
Latest Disclosed Value $ 9,065,826
Mackenzie Financial Corp reports 173.98% increase in ownership of PKG / Packaging Corporation of America

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 42,719 shares of Packaging Corporation of America (US:PKG) valued at $9,065,826 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 15,592 shares of Packaging Corporation of America. This represents a change in shares of 173.98% during the quarter. The current value of the position is $9,585,716 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)
2026-05-13 2026-03-31 13F PACKAGING CORP AMER COM 695156109 42,719 27,127 173.98 9,066 179.78 0.0109
2026-02-18 2025-12-31 13F PACKAGING CORP AMER COM 695156109 15,592 4,126 35.98 3,241 29.70 0.0038
2025-11-13 2025-09-30 13F PACKAGING CORP AMER COM 695156109 11,466 -134 -1.16 2,499 14.27 0.0030
2025-08-13 2025-06-30 13F PACKAGING CORP AMER COM 695156109 11,600 681 6.24 2,186 1.11 0.0028
2025-05-07 2025-03-31 13F PACKAGING CORP AMER COM 695156109 10,919 496 4.76 2,162 -7.84 0.0031
2025-05-02 2024-12-31 13F/A-2 PACKAGING CORP AMER COM 695156109 10,423 -8,262 -44.22 2,347 -41.70 0.0032
2025-02-20 2024-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 10,423 -8,262 2,347 0.0030
2025-02-14 2024-12-31 13F Packaging Corp of America Common Stock 695156109 10,423 -8,262 1,199 0.0017
2024-11-13 2024-09-30 13F PACKAGING CORP AMER COM 695156109 18,685 -1,181 -5.94 4,025 10.98 0.0056
2024-08-14 2024-06-30 13F PACKAGING CORP AMER COM 695156109 19,866 -357 -1.77 3,627 -5.50 0.0054
2024-05-10 2024-03-31 13F PACKAGING CORP AMER COM 695156109 20,223 13 0.06 3,838 16.56 0.0055
2024-01-30 2023-12-31 13F PACKAGING CORP AMER COM 695156109 20,210 -523 -2.52 3,292 4.71 0.0050
2023-10-25 2023-09-30 13F PACKAGING CORP AMER COM 695156109 20,733 2,974 16.75 3,145 33.50 0.0053
2023-08-03 2023-06-30 13F PACKAGING CORP AMER COM 695156109 17,759 11,735 194.80 2,355 181.70 0.0036
2023-04-24 2023-03-31 13F PACKAGING CORP AMER COM 695156109 6,024 28 0.47 836 9.14 0.0013
2023-02-14 2022-12-31 13F PACKAGING CORP AMER COM 695156109 5,996 -1,358 -18.47 767 -7.26 0.0013
2022-10-07 2022-09-30 13F Packaging Corp of America Common Stock 695156109 7,354 70 0.96 826 -17.56 0.0014
2022-08-10 2022-06-30 13F PACKAGING CORP AMER COM 695156109 7,284 5,388 284.18 1,002 238.51 0.0016
2022-05-13 2022-03-31 13F PACKAGING CORP AMER COM 695156109 1,896 -13 -0.68 296 13.85 0.0004
2022-02-14 2021-12-31 13F PACKAGING CORP AMER COM 695156109 1,909 -4,541 -70.40 260 -70.65 0.0004
2021-11-08 2021-09-30 13F PACKAGING CORP AMER COM 695156109 6,450 1,834 39.73 886 41.76 0.0013
2021-08-11 2021-06-30 13F PACKAGING CORP AMER COM 695156109 4,616 211 4.79 625 5.57 0.0009
2021-05-14 2021-03-31 13F PACKAGING CORP AMER COM 695156109 4,405 1,499 51.58 592 47.63 0.0009
2021-02-10 2020-12-31 13F PACKAGING CORP AMER COM 695156109 2,906 215 7.99 401 36.86 0.0009
2020-11-13 2020-09-30 13F PACKAGING CORP AMER COM 695156109 2,691 -127 -4.51 293 4.27 0.0007
2020-08-13 2020-06-30 13F PACKAGING CORP AMER COM 695156109 2,818 2,818 281 0.0008
2019-08-23 2019-06-30 13F/A-1 PACKAGING CORP AMER COM 695156109 0 -11,914 -100.00 0 -100.00
2019-05-15 2019-03-31 13F PACKAGING CORP AMER COM 695156109 11,914 7,882 195.49 1,184 251.34 0.0029
2019-02-06 2018-12-31 13F PACKAGING CORP AMER COM 695156109 4,032 4,032 337 0.0009
2018-08-13 2018-06-30 13F PACKAGING CORP AMER COM 695156109 0 -135,386 -100.00 0 -100.00
2018-05-14 2018-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 135,386 3,037 2.29 15,258 -4.37 0.0389
2018-05-14 2018-03-31 13F PACKAGING CORP AMER COM 695156109 135,386 15,258
2018-02-13 2017-12-31 13F PACKAGING CORP AMER COM 695156109 132,349 -6,306 -4.55 15,955 0.34 0.0385
2017-11-13 2017-09-30 13F PACKAGING CORP AMER COM 695156109 138,655 -5,000 -3.48 15,901 -0.63 0.0857
2017-08-14 2017-06-30 13F PACKAGING CORP AMER COM 695156109 143,655 2,200 1.56 16,002 23.47 0.0891
2017-05-25 2017-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 141,455 2,003 1.44 12,960 9.57 0.0758
2017-05-12 2017-03-31 13F PACKAGING CORP AMER COM 695156109 141,455 12,960
2017-02-14 2016-12-31 13F PACKAGING CORP AMER COM 695156109 139,452 1,260 0.91 11,828 5.33 0.0708
2016-11-15 2016-09-30 13F PACKAGING CORP AMER COM 695156109 138,192 -153,771 -52.67 11,229 -42.54 0.0701
2016-08-12 2016-06-30 13F PACKAGING CORP AMER COM 695156109 291,963 -62,150 -17.55 19,541 -8.64 0.1104
2016-05-12 2016-03-31 13F PACKAGING CORP AMER COM 695156109 354,113 -75,108 -17.50 21,388 -20.97 0.1940
2016-02-12 2015-12-31 13F PACKAGING CORP AMER COM 695156109 429,221 243,167 130.70 27,062 141.78 0.1679
2015-11-13 2015-09-30 13F PACKAGING CORP AMER COM 695156109 186,054 154,915 497.50 11,193 475.18 0.0679
2015-08-13 2015-06-30 13F PACKAGING CORP AMER COM 695156109 31,139 -17,103 -35.45 1,946 -48.41 0.0106
2015-05-13 2015-03-31 13F PACKAGING CORP AMER COM 695156109 48,242 3,250 7.22 3,772 7.40 0.0199
2015-02-11 2014-12-31 13F PACKAGING CORP AMER COM 695156109 44,992 1,569 3.61 3,512 26.74 0.0179
2014-11-12 2014-09-30 13F PACKAGING CORP AMER COM 695156109 43,423 10,323 31.19 2,771 17.12 0.0139
2014-08-11 2014-06-30 13F PACKAGING CORP AMER COM 695156109 33,100 -200 -0.60 2,366 0.98 0.0110
2014-05-14 2014-03-31 13F PACKAGING CORP AMER COM 695156109 33,300 22,900 220.19 2,343 256.08 0.0115
2014-02-11 2013-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 10,400 0 0.00 658 10.77 0.0033
2014-02-03 2013-12-31 13F PACKAGING CORP AMER COM 695156109 10,400 658
2013-11-12 2013-09-30 13F PACKAGING CORP AMER COM 695156109 10,400 10,400 594 0.0030
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.