Packaging Corporation of America
US ˙ NYSE ˙ US6951561090

SecurityPKG / Packaging Corporation of America
InstitutionEarnest Partners Llc
Latest Disclosed Ownership258,975 shares
Latest Disclosed Value $ 54,959,674
Earnest Partners Llc reports 3.04% decrease in ownership of PKG / Packaging Corporation of America

On May 15, 2026 - Earnest Partners Llc filed a 13F-HR form disclosing ownership of 258,975 shares of Packaging Corporation of America (US:PKG) valued at $54,959,674 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 267,085 shares of Packaging Corporation of America. This represents a change in shares of -3.04% during the quarter. The current value of the position is $58,111,400 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)
2026-05-15 2026-03-31 13F PACKAGING CORP AMER COM 695156109 258,975 -8,110 -3.04 54,960 -0.22 0.2266
2026-02-12 2025-12-31 13F PACKAGING CORP AMER COM 695156109 267,085 -1,224 -0.46 55,081 -5.80 0.2360
2025-11-14 2025-09-30 13F PACKAGING CORP AMER COM 695156109 268,309 -6,712 -2.44 58,473 12.82 0.2537
2025-08-15 2025-06-30 13F PACKAGING CORP AMER COM 695156109 275,021 2,513 0.92 51,828 -3.96 0.2336
2025-05-14 2025-03-31 13F PACKAGING CORP AMER COM 695156109 272,508 -8,474 -3.02 53,962 -14.69 0.2584
2025-02-14 2024-12-31 13F PACKAGING CORP AMER COM 695156109 280,982 -2,271 -0.80 63,257 3.68 0.2827
2024-11-14 2024-09-30 13F PACKAGING CORP AMER COM 695156109 283,253 17,999 6.79 61,013 26.00 0.2657
2024-08-14 2024-06-30 13F PACKAGING CORP AMER COM 695156109 265,254 -87 -0.03 48,425 -3.84 0.2264
2024-05-15 2024-03-31 13F PACKAGING CORP AMER COM 695156109 265,341 63,942 31.75 50,356 53.48 0.2306
2024-02-14 2023-12-31 13F PACKAGING CORP AMER COM 695156109 201,399 -1,424 -0.70 32,810 5.35 0.1638
2023-11-14 2023-09-30 13F PACKAGING CORP AMER COM 695156109 202,823 6,196 3.15 31,143 19.85 0.1796
2023-08-07 2023-06-30 13F PACKAGING COM 695156109 196,627 -7,463 -3.66 25,986 -8.28 0.1452
2023-05-15 2023-03-31 13F PACKAGING COM 695156109 204,090 -2,394 -1.16 28,334 7.28 0.1639
2023-02-14 2022-12-31 13F PACKAGING COM 695156109 206,484 3,188 1.57 26,411 15.70 0.1619
2022-11-14 2022-09-30 13F PACKAGING COM 695156109 203,296 -1,090 -0.53 22,828 -18.77 0.1533
2022-08-12 2022-06-30 13F PACKAGING COM 695156109 204,386 43,979 27.42 28,103 12.23 0.1872
2022-05-16 2022-03-31 13F PACKAGING COM 695156109 160,407 -4,059 -2.47 25,041 11.83 0.1483
2022-02-07 2021-12-31 13F PACKAGING COM 695156109 164,466 -3,630 -2.16 22,392 -3.08 0.1292
2021-11-15 2021-09-30 13F PACKAGING COM 695156109 168,096 -19,178 -10.24 23,103 -8.90 0.1412
2021-08-16 2021-06-30 13F PACKAGING COM 695156109 187,274 -1,507 -0.80 25,361 -0.10 0.1490
2021-05-17 2021-03-31 13F PACKAGING COM 695156109 188,781 -970 -0.51 25,387 -2.99 0.1517
2021-02-16 2020-12-31 13F PACKAGING COM 695156109 189,751 -13,097 -6.46 26,169 18.30 0.1808
2020-11-16 2020-09-30 13F PACKAGING COM 695156109 202,848 15,476 8.26 22,121 18.29 0.1908
2020-08-13 2020-06-30 13F PACKAGING COM 695156109 187,372 -16,959 -8.30 18,700 5.40 0.1767
2020-05-14 2020-03-31 13F PACKAGING COM 695156109 204,331 544 0.27 17,742 -22.26 0.1999
2020-02-07 2019-12-31 13F PACKAGING COM 695156109 203,787 2,171 1.08 22,822 6.69 0.1794
2019-11-14 2019-09-30 13F PACKAGING COM 695156109 201,616 -2,962 -1.45 21,391 9.70 0.1933
2019-08-13 2019-06-30 13F PACKAGING COM 695156109 204,578 7,249 3.67 19,500 -0.57 0.1762
2019-05-15 2019-03-31 13F PACKAGING COM 695156109 197,329 -980 -0.49 19,611 18.49 0.1873
2019-02-14 2018-12-31 13F PACKAGING COM 695156109 198,309 1,398 0.71 16,551 -23.37 0.1802
2018-11-14 2018-09-30 13F PACKAGING COM 695156109 196,911 -7,746 -3.78 21,599 -5.59 0.1935
2018-08-13 2018-06-30 13F PACKAGING COM 695156109 204,657 -2,926 -1.41 22,879 -2.21 0.2140
2018-05-15 2018-03-31 13F PACKAGING COM 695156109 207,583 -4,603 -2.17 23,395 -8.54 0.2213
2018-02-14 2017-12-31 13F PACKAGING COM 695156109 212,186 -1,824 -0.85 25,579 4.22 0.2449
2017-11-14 2017-09-30 13F PACKAGING COM 695156109 214,010 -5,331 -2.43 24,543 0.45 0.2445
2017-08-14 2017-06-30 13F PACKAGING COM 695156109 219,341 -9,455 -4.13 24,432 16.55 0.2566
2017-05-15 2017-03-31 13F PACKAGING COM 695156109 228,796 -1,372 -0.60 20,962 7.37 0.2236
2017-02-14 2016-12-31 13F PACKAGING COM 695156109 230,168 -14,279 -5.84 19,523 -1.72 0.2132
2016-11-14 2016-09-30 13F PACKAGING COM 695156109 244,447 -8,571 -3.39 19,864 17.30 0.2083
2016-08-15 2016-06-30 13F PACKAGING COM 695156109 253,018 -5,467 -2.12 16,934 8.47 0.1837
2016-05-16 2016-03-31 13F PACKAGING COM 695156109 258,485 -1,359 -0.52 15,612 -4.71 0.1636
2016-02-16 2015-12-31 13F PACKAGING COM 695156109 259,844 -12,650 -4.64 16,383 -0.06 0.1671
2015-11-16 2015-09-30 13F PACKAGING COM 695156109 272,494 272,494 16,393 0.1610
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.