Packaging Corporation of America
US ˙ NYSE ˙ US6951561090

SecurityPKG / Packaging Corporation of America
InstitutionStrs Ohio
Latest Disclosed Ownership90,312 shares
Latest Disclosed Value $ 19,166,013
Strs Ohio reports 36.18% increase in ownership of PKG / Packaging Corporation of America

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 90,312 shares of Packaging Corporation of America (US:PKG) valued at $19,166,013 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 66,316 shares of Packaging Corporation of America. This represents a change in shares of 36.18% during the quarter. The current value of the position is $20,265,110 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)
2026-04-24 2026-03-31 13F PACKAGING CORP OF AMERICA COM_STK 695156109 90,312 23,996 36.18 19,166 40.14 0.0760
2026-02-02 2025-12-31 13F PACKAGING CORP OF AMERICA COM_STK 695156109 66,316 20,204 43.82 13,676 36.09 0.0510
2025-10-30 2025-09-30 13F PACKAGING CORP OF AMERICA COM_STK 695156109 46,112 -4,566 -9.01 10,049 5.23 0.0368
2025-08-04 2025-06-30 13F PACKAGING CORP OF AMERICA COM_STK 695156109 50,678 -449 -0.88 9,550 -5.67 0.0357
2025-05-28 2025-03-31 13F PACKAGING CORP OF AMERICA COM_STK 695156109 51,127 16,627 48.19 10,124 30.36 0.0424
2025-05-28 2024-12-31 13F PACKAGING CORP OF AMERICA COM_STK 695156109 34,500 2,534 7.93 7,767 12.80 0.0308
2024-11-01 2024-09-30 13F PACKAGING CORP OF AMERICA COM_STK 695156109 31,966 -1,233 -3.71 6,885 13.61 0.0265
2024-08-05 2024-06-30 13F PACKAGING CORP OF AMERICA COM_STK 695156109 33,199 -560 -1.66 6,061 100,900.00 0.0239
2024-05-13 2024-03-31 13F PACKAGING CORP OF AMERICA COM_STK 695156109 33,759 -341 -1.00 6 20.00 0.0255
2024-01-30 2023-12-31 13F PACKAGING CORP OF AMERICA COM 695156109 34,100 -4,110 -10.76 6 0.00 0.0231
2023-10-26 2023-09-30 13F/A-1 PACKAGING CORP OF AMERICA COM 695156109 38,210 2,747 7.75 6 25.00 0.0261
2023-10-26 2023-09-30 13F PACKAGING CORP OF AMERICA COM 695156109 38,210 2,747 6 0.0261
2023-07-31 2023-06-30 13F PACKAGING CORP OF AMERICA COM 695156109 35,463 2,494 7.56 5 0.00 0.0198
2023-08-02 2023-03-31 13F/A-2 PACKAGING CORP OF AMERICA COM 695156109 32,969 -2,593 -7.29 5 0.00 0.0198
2023-08-02 2023-03-31 13F/A-1 PACKAGING CORP OF AMERICA COM 695156109 32,969 5
2023-04-27 2023-03-31 13F PACKAGING CORP OF AMERICA COM 695156109 32,969 -2,593 5 0.0236
2023-01-26 2022-12-31 13F PACKAGING CORP OF AMERICA COM 695156109 35,562 -4,838 -11.98 5 -99.91 0.0205
2022-10-27 2022-09-30 13F PACKAGING CORP OF AMERICA COM 695156109 40,400 25,810 176.90 4,536 126.12 0.0216
2022-07-25 2022-06-30 13F PACKAGING CORP OF AMERICA COM 695156109 14,590 -2,527 -14.76 2,006 -24.93 0.0090
2022-04-21 2022-03-31 13F PACKAGING CORP OF AMERICA COM 695156109 17,117 -2,490 -12.70 2,672 0.11 0.0098
2022-01-24 2021-12-31 13F PACKAGING CORP OF AMERICA COM 695156109 19,607 -45 -0.23 2,669 -1.15 0.0093
2021-10-22 2021-09-30 13F PACKAGING CORP OF AMERICA COM 695156109 19,652 -8,617 -30.48 2,700 -29.47 0.0102
2021-07-26 2021-06-30 13F PACKAGING CORP OF AMERICA COM 695156109 28,269 2,140 8.19 3,828 8.97 0.0138
2021-04-23 2021-03-31 13F PACKAGING CORP OF AMERICA COM 695156109 26,129 -1,722 -6.18 3,513 -8.52 0.0132
2021-01-25 2020-12-31 13F PACKAGING CORP OF AMERICA COM 695156109 27,851 15,854 132.15 3,840 193.58 0.0148
2020-12-14 2020-09-30 13F PACKAGING CORP OF AMERICA COM 695156109 11,997 -18,853 -61.11 1,308 -57.50 0.0055
2020-07-23 2020-06-30 13F PACKAGING CORP OF AMERICA COM 695156109 30,850 26,370 588.62 3,078 693.30 0.0135
2020-04-23 2020-03-31 13F PACKAGING CORP OF AMERICA COM 695156109 4,480 -8,070 -64.30 388 -72.38 0.0020
2020-01-24 2019-12-31 13F PACKAGING CORP OF AMERICA COM 695156109 12,550 4,117 48.82 1,405 57.16 0.0059
2019-10-21 2019-09-30 13F/A-1 PACKAGING CORP OF AMERICA COM 695156109 8,433 3,117 58.63 894 76.68 0.0039
2019-10-21 2019-09-30 13F PACKAGING CORP OF AMERICA COM 695156109 8,433 -4,117 894 3,956.8936
2019-07-25 2019-06-30 13F PACKAGING CORP OF AMERICA COM 695156109 5,316 4,124 345.97 506 328.81 0.0022
2019-04-19 2019-03-31 13F PACKAGING CORP OF AMERICA COM 695156109 1,192 0 0.00 118 19.19 0.0005
2019-01-23 2018-12-31 13F PACKAGING CORP OF AMERICA COM 695156109 1,192 -8,307 -87.45 99 -90.49 0.0005
2018-10-19 2018-09-30 13F PACKAGING CORP OF AMERICA COM 695156109 9,499 -2,966 -23.79 1,041 -25.27 0.0046
2018-08-06 2018-06-30 13F PACKAGING CORP OF AMERICA COM 695156109 12,465 6,002 92.87 1,393 91.35 0.0060
2018-04-20 2018-03-31 13F PACKAGING CORP OF AMERICA COM 695156109 6,463 659 11.35 728 4.15 0.0032
2018-01-23 2017-12-31 13F PACKAGING CORP OF AMERICA COM 695156109 5,804 1,481 34.26 699 41.21 0.0030
2017-10-23 2017-09-30 13F PACKAGING CORP OF AMERICA COM 695156109 4,323 3,092 251.18 495 261.31 0.0021
2017-07-26 2017-06-30 13F PACKAGING CORP OF AMERICA COM 695156109 1,231 -142 -10.34 137 9.60 0.0006
2017-04-26 2017-03-31 13F PACKAGING CORP OF AMERICA COM 695156109 1,373 0 0.00 125 7.76 0.0005
2017-01-24 2016-12-31 13F PACKAGING CORP OF AMERICA COM 695156109 1,373 -194 -12.38 116 -8.66 0.0005
2016-10-27 2016-09-30 13F PACKAGING CORP OF AMERICA COM 695156109 1,567 -614 -28.15 127 -12.41 0.0006
2016-07-26 2016-06-30 13F PACKAGING CORP OF AMERICA COM 695156109 2,181 0 0.00 145 10.69 0.0006
2016-04-25 2016-03-31 13F/A-1 PACKAGING CORP OF AMERICA COM 695156109 2,181 114 5.52 131 0.77 0.0006
2016-01-28 2015-12-31 13F PACKAGING CORP OF AMERICA COM 695156109 2,067 462 28.79 130 35.42 0.0006
2015-10-21 2015-09-30 13F PACKAGING CORP OF AMERICA COM 695156109 1,605 1,605 0.00 96 0.0005
2015-08-04 2015-06-30 13F PACKAGING CORP OF AMERICA COM 695156109 0 -118,100 -100.00 0 -100.00
2015-04-27 2015-03-31 13F/A-1 PACKAGING CORP OF AMERICA COM 695156109 118,100 0 0.00 9,234 0.17 0.0407
2015-04-21 2015-03-31 13F PACKAGING CORP OF AMERICA COM 695156109 118,100 9,234
2015-01-23 2014-12-31 13F PACKAGING CORP OF AMERICA COM 695156109 118,100 118,100 9,218 0.0400
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.