Packaging Corporation of America
US ˙ NYSE ˙ US6951561090

SecurityPKG / Packaging Corporation of America
InstitutionBLACKROCK NATURAL RESOURCES TRUST - BLACKROCK NATURAL RESOURCES TRUST Investor A
Latest Disclosed Ownership21,482 shares
Latest Disclosed Value $ 4,162,137
BLACKROCK NATURAL RESOURCES TRUST - BLACKROCK NATURAL RESOURCES TRUST Investor A reports 51.45% increase in ownership of PKG / Packaging Corporation of America

On September 24, 2025 - BLACKROCK NATURAL RESOURCES TRUST - BLACKROCK NATURAL RESOURCES TRUST Investor A filed a NPORT-P form disclosing ownership of 21,482 shares of Packaging Corporation of America (US:PKG) valued at $4,162,138 USD as of July 31, 2025. The entity filed a previous NPORT-P on June 26, 2025 disclosing 14,184 shares of Packaging Corporation of America. This represents a change in shares of 51.45% during the quarter. The current value of the position is $4,572,873 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)
2025-09-24 2025-07-31 NP Packaging Corp of America EC US6951561090 21,482 7,298 51.45 4,162 58.13 2.9058
2025-06-26 2025-04-30 NP Packaging Corp of America EC US6951561090 14,184 -12,930 -47.69 2,633 -54.35 1.8769
2025-03-27 2025-01-31 NP Packaging Corp of America EC US6951561090 27,114 -1,770 -6.13 5,766 -12.79 3.8635
2024-12-26 2024-10-31 NP Packaging Corp of America EC US6951561090 28,884 -468 -1.59 6,613 12.72 3.8238
2024-09-27 2024-07-31 NP Packaging Corp of America EC US6951561090 29,352 -1,175 -3.85 5,867 11.10 3.2106
2024-06-27 2024-04-30 NP Packaging Corp of America EC US6951561090 30,527 -2,139 -6.55 5,281 -2.55 2.7709
2024-03-27 2024-01-31 NP Packaging Corp of America EC US6951561090 32,666 368 1.14 5,419 9.61 2.8608
2023-12-27 2023-10-31 NP Packaging Corp of America EC US6951561090 32,298 13,471 71.55 4,943 71.22 2.1647
2023-09-26 2023-07-31 NP Packaging Corp of America EC US6951561090 18,827 -2,069 -9.90 2,887 2.16 1.1051
2023-06-27 2023-04-30 NP Packaging Corp of America EC US6951561090 20,896 1,940 10.23 2,826 4.47 0.9776
2023-03-29 2023-01-31 NP Packaging Corp of America EC US6951561090 18,956 824 4.54 2,705 24.14 0.9615
2022-12-27 2022-10-31 NP Packaging Corp of America EC US6951561090 18,132 -691 -3.67 2,180 -17.65 0.8907
2022-09-27 2022-07-31 NP Packaging Corp of America EC US6951561090 18,823 -207 -1.09 2,647 -13.73 1.0800
2022-06-27 2022-04-30 NP Packaging Corp of America EC US6951561090 19,030 1,870 10.90 3,067 18.69 1.1273
2022-03-29 2022-01-31 NP Packaging Corp of America EC US6951561090 17,160 -6,658 -27.95 2,585 -21.00 1.2546
2021-12-28 2021-10-31 NP Packaging Corp of America EC US6951561090 23,818 -5,065 -17.54 3,272 -19.95 1.7116
2021-09-28 2021-07-31 NP Packaging Corp of America EC US6951561090 28,883 1,106 3.98 4,087 -0.37 2.3497
2021-06-28 2021-04-30 NP Packaging Corp of America EC US6951561090 27,777 1,374 5.20 4,101 15.52 2.4232
2021-03-31 2021-01-31 NP Packaging Corp of America EC US6951561090 26,403 48 0.18 3,550 17.67 2.5955
2020-12-28 2020-10-31 NP Packaging Corp of America EC US6951561090 26,355 7,529 39.99 3,017 66.78 2.8809
2020-09-28 2020-07-31 NP Packaging Corp of America EC US6951561090 18,826 -206 -1.08 1,810 -1.63 1.5554
2020-06-26 2020-04-30 NP Packaging Corp of America EC US6951561090 19,032 -16,001 -45.67 1,839 -45.17 1.7227
2020-03-27 2020-01-31 NP Packaging Corp of America EC US6951561090 35,033 2,473 7.60 3,354 -5.89 2.5270
2019-12-26 2019-10-31 NP Packaging Corp of America EC US6951561090 32,560 32,560 3,564 2.5066
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.