Packaging Corporation of America
US ˙ NYSE ˙ US6951561090

SecurityPKG / Packaging Corporation of America
InstitutionCIBC Asset Management Inc
Latest Disclosed Ownership23,109 shares
Latest Disclosed Value $ 4,904,192
CIBC Asset Management Inc reports 0.36% decrease in ownership of PKG / Packaging Corporation of America

On May 12, 2026 - CIBC Asset Management Inc filed a 13F-HR form disclosing ownership of 23,109 shares of Packaging Corporation of America (US:PKG) valued at $4,904,192 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 23,193 shares of Packaging Corporation of America. This represents a change in shares of -0.36% during the quarter. The current value of the position is $5,185,429 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)
2026-05-12 2026-03-31 13F PACKAGING CORP AMER COM 695156109 23,109 -84 -0.36 4,904 2.53 0.0120
2026-02-10 2025-12-31 13F PACKAGING CORP AMER COM 695156109 23,193 8,389 56.67 4,783 48.26 0.0115
2025-10-31 2025-09-30 13F PACKAGING CORP AMER COM 695156109 14,804 417 2.90 3,226 19.00 0.0093
2025-08-14 2025-06-30 13F PACKAGING CORP AMER COM 695156109 14,387 -1,104 -7.13 2,711 -11.61 0.0084
2025-05-13 2025-03-31 13F PACKAGING CORP AMER COM 695156109 15,491 -141 -0.90 3,068 -12.84 0.0102
2025-01-31 2024-12-31 13F PACKAGING CORP AMER COM 695156109 15,632 393 2.58 3,519 7.22 0.0115
2024-11-06 2024-09-30 13F PACKAGING CORP AMER COM 695156109 15,239 534 3.63 3,282 22.28 0.0106
2024-08-01 2024-06-30 13F PACKAGING CORP AMER COM 695156109 14,705 -183 -1.23 2,685 -4.99 0.0096
2024-05-09 2024-03-31 13F PACKAGING CORP AMER COM 695156109 14,888 -402 -2.63 2,825 13.45 0.0098
2024-02-13 2023-12-31 13F PACKAGING CORP AMER COM 695156109 15,290 -1,032 -6.32 2,491 -0.64 0.0093
2023-10-30 2023-09-30 13F PACKAGING CORP AMER COM 695156109 16,322 -961 -5.56 2,506 9.72 0.0104
2023-08-14 2023-06-30 13F PACKAGING CORP AMER COM 695156109 17,283 -202 -1.16 2,284 -5.89 0.0088
2023-05-12 2023-03-31 13F PACKAGING CORP AMER COM 695156109 17,485 67 0.38 2,427 8.98 0.0096
2023-02-13 2022-12-31 13F PACKAGING CORP AMER COM 695156109 17,418 44 0.25 2,228 14.15 0.0094
2022-11-03 2022-09-30 13F PACKAGING CORP AMER COM 695156109 17,374 5,736 49.29 1,951 21.94 0.0086
2022-08-09 2022-06-30 13F PACKAGING CORP AMER COM 695156109 11,638 2,498 27.33 1,600 12.12 0.0065
2022-05-06 2022-03-31 13F PACKAGING CORP AMER COM 695156109 9,140 -19,577 -68.17 1,427 -63.50 0.0050
2022-02-08 2021-12-31 13F PACKAGING CORP AMER COM 695156109 28,717 299 1.05 3,910 0.10 0.0143
2021-11-09 2021-09-30 13F PACKAGING CORP AMER COM 695156109 28,418 19,990 237.19 3,906 242.33 0.0157
2021-08-16 2021-06-30 13F PACKAGING CORP AMER COM 695156109 8,428 89 1.07 1,141 1.78 0.0046
2021-05-14 2021-03-31 13F PACKAGING CORP AMER COM 695156109 8,339 -14,542 -63.55 1,121 -64.48 0.0048
2021-02-03 2020-12-31 13F PACKAGING CORP AMER COM 695156109 22,881 1,086 4.98 3,156 32.77 0.0148
2020-11-05 2020-09-30 13F PACKAGING CORP AMER COM 695156109 21,795 13,532 163.77 2,377 188.12 0.0121
2020-07-28 2020-06-30 13F PACKAGING CORP AMER COM 695156109 8,263 119 1.46 825 16.69 0.0048
2020-04-30 2020-03-31 13F PACKAGING CORP AMER COM 695156109 8,144 -468 -5.43 707 -26.66 0.0050
2020-02-14 2019-12-31 13F PACKAGING CORP AMER COM 695156109 8,612 242 2.89 964 8.56 0.0055
2019-10-30 2019-09-30 13F PACKAGING CORP AMER COM 695156109 8,370 -143 -1.68 888 9.49 0.0052
2019-08-05 2019-06-30 13F PACKAGING CORP AMER COM 695156109 8,513 -5 -0.06 811 -4.25 0.0049
2019-05-06 2019-03-31 13F PACKAGING CORP AMER COM 695156109 8,518 -495 -5.49 847 12.63 0.0053
2019-02-12 2018-12-31 13F PACKAGING CORP AMER COM 695156109 9,013 -144 -1.57 752 -25.10 0.0055
2018-11-02 2018-09-30 13F PACKAGING CORP AMER COM 695156109 9,157 -14 -0.15 1,004 -2.05 0.0062
2018-08-09 2018-06-30 13F PACKAGING CORP AMER COM 695156109 9,171 328 3.71 1,025 2.81 0.0064
2018-04-30 2018-03-31 13F PACKAGING CORP AMER COM 695156109 8,843 -437 -4.71 997 -10.90 0.0065
2018-02-02 2017-12-31 13F PACKAGING CORP AMER COM 695156109 9,280 447 5.06 1,119 10.46 0.0068
2017-11-06 2017-09-30 13F PACKAGING CORP AMER COM 695156109 8,833 5,736 185.21 1,013 193.62 0.0063
2017-07-27 2017-06-30 13F PACKAGING CORP AMER COM 695156109 3,097 0 0.00 345 21.48 0.0024
2017-05-12 2017-03-31 13F PACKAGING CORP AMER COM 695156109 3,097 0 0.00 284 7.98 0.0020
2017-02-08 2016-12-31 13F PACKAGING CORP AMER COM 695156109 3,097 0 0.00 263 4.37 0.0019
2016-10-19 2016-09-30 13F PACKAGING CORP AMER COM 695156109 3,097 0 0.00 252 21.74 0.0019
2016-08-02 2016-06-30 13F PACKAGING CORP AMER COM 695156109 3,097 3,097 0.00 207 0.0016
2016-02-02 2015-12-31 13F PACKAGING CORP AMER COM 695156109 0 0 0 0.0000
2015-11-03 2015-09-30 13F PACKAGING CORP AMER COM 695156109 0 0 0 0.0000
2015-08-06 2015-06-30 13F PACKAGING CORP AMER COM 695156109 0 -2,892 -100.00 0 -100.00
2015-05-08 2015-03-31 13F PACKAGING CORP AMER COM 695156109 2,892 27 0.94 226 0.89 0.0016
2015-02-10 2014-12-31 13F PACKAGING CORP AMER COM 695156109 2,865 -385 -11.85 224 8.21 0.0015
2014-11-05 2014-09-30 13F PACKAGING CORP AMER COM 695156109 3,250 0 0.00 207 -9.61 0.0012
2014-05-09 2014-03-31 13F PACKAGING CORP AMER COM 695156109 3,250 77 2.43 229 13.93 0.0014
2014-02-04 2013-12-31 13F PACKAGING CORP AMER COM 695156109 3,173 3,173 201 0.0012
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.