Packaging Corporation of America
MX ˙ BMV ˙ US6951561090
SecurityMX:PKG / Packaging Corporation of America
InstitutionRobeco Institutional Asset Management B.V.
Latest Disclosed Ownership3,238 shares
Latest Disclosed Value $ 687,168
Robeco Institutional Asset Management B.V. ownership in PKG / Packaging Corporation of America

On April 21, 2026 - Robeco Institutional Asset Management B.V. filed a 13F-HR form disclosing ownership of 3,238 shares of Packaging Corporation of America (MX:PKG) valued at $687,168 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 3,238 shares of Packaging Corporation of America. This represents a change in shares of 0.00% during the quarter.

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)
2026-04-21 2026-03-31 13F PACKAGING CORP AMER COM 695156109 3,238 0 0.00 687 3.00 0.0010
2026-01-23 2025-12-31 13F PACKAGING CORP AMER COM 695156109 3,238 3,238 668 0.0010
2025-10-22 2025-09-30 13F PACKAGING CORP AMER COM 695156109 0 -1,681 -100.00 0 -100.00
2025-07-18 2025-06-30 13F PACKAGING CORP AMER COM 695156109 1,681 -51,915 -96.86 317 -97.02 0.0005
2025-04-23 2025-03-31 13F PACKAGING CORP AMER COM 695156109 53,596 -97,689 -64.57 10,613 -68.84 0.0206
2025-01-23 2024-12-31 13F PACKAGING CORP AMER COM 695156109 151,285 119,636 378.01 34,059 399.60 0.0646
2024-10-29 2024-09-30 13F PACKAGING CORP AMER COM 695156109 31,649 -6,363 -16.74 6,817 -1.76 0.0135
2024-07-23 2024-06-30 13F PACKAGING CORP AMER COM 695156109 38,012 -118,006 -75.64 6,939 -76.56 0.0149
2024-04-24 2024-03-31 13F PACKAGING CORP AMER COM 695156109 156,018 48,555 45.18 29,609 69.14 0.0643
2024-02-14 2023-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 107,463 97,164 943.43 17,507 1,007.27 0.0424
2024-02-08 2023-12-31 13F PACKAGING CORP AMER COM 695156109 58,882 48,583 107 0.0201
2023-10-24 2023-09-30 13F PACKAGING CORP AMER COM 695156109 10,299 -13,395 -56.53 1,581 -49.50 0.0042
2023-07-24 2023-06-30 13F PACKAGING CORP AMER COM 695156109 23,694 -2,562 -9.76 3,131 -14.10 0.0082
2023-05-04 2023-03-31 13F PACKAGING CORP AMER COM 695156109 26,256 -2,158 -7.59 3,645 0.30 0.0099
2023-02-07 2022-12-31 13F PACKAGING CORP AMER COM 695156109 28,414 -128,122 -81.85 3,634 -79.33 0.0105
2022-12-01 2022-09-30 13F/A-1 PACKAGING CORP AMER COM 695156109 156,536 -137,312 -46.73 17,577 -56.50 0.0568
2022-10-27 2022-09-30 13F PACKAGING CORP AMER COM 695156109 156,536 -137,312 17,577 0.0560
2022-12-01 2022-06-30 13F/A-1 PACKAGING CORP AMER COM 695156109 293,848 218,265 288.78 40,403 242.46 0.1255
2022-07-27 2022-06-30 13F PACKAGING CORP AMER COM 695156109 293,848 218,265 40,403 0.1238
2022-12-01 2022-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 75,583 -619 -0.81 11,798 13.74 0.0278
2022-04-26 2022-03-31 13F PACKAGING CORP AMER COM 695156109 75,583 -619 11,798 0.0275
2022-12-01 2021-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 76,202 -37,836 -33.18 10,373 -33.82 0.0221
2022-01-31 2021-12-31 13F PACKAGING CORP AMER COM 695156109 76,202 -37,836 10,373 0.0218
2022-12-01 2021-09-30 13F/A-1 PACKAGING CORP AMER COM 695156109 114,038 -22,851 -16.69 15,675 -15.44 0.0348
2021-10-20 2021-09-30 13F PACKAGING CORP AMER COM 695156109 114,038 -22,851 15,675 0.0343
2022-12-01 2021-06-30 13F/A-1 PACKAGING CORP AMER COM 695156109 136,889 14,228 11.60 18,538 12.39 0.0411
2021-07-28 2021-06-30 13F PACKAGING CORP AMER COM 695156109 136,889 14,228 18,538 0.0405
2022-12-01 2021-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 122,661 3,433 2.88 16,495 0.32 0.0407
2021-04-23 2021-03-31 13F PACKAGING CORP AMER COM 695156109 122,661 3,433 16,495 0.0401
2022-12-01 2020-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 119,228 7,756 6.96 16,442 35.26 0.0432
2021-01-28 2020-12-31 13F PACKAGING CORP AMER COM 695156109 119,228 7,756 16,442 0.0427
2021-01-19 2020-09-30 13F/A-1 PACKAGING CORP AMER COM 695156109 111,472 4,397 4.11 12,156 13.76 0.0376
2020-10-29 2020-09-30 13F PACKAGING CORP AMER COM 695156109 111,472 4,397 12,156 37,541.6843
2021-01-19 2020-06-30 13F/A-1 PACKAGING CORP AMER COM 695156109 107,075 93,611 695.27 10,686 814.11 0.0363
2020-07-20 2020-06-30 13F PACKAGING CORP AMER COM 695156109 107,075 93,611 10,686 36,259.5040
2021-01-19 2020-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 13,464 -1,116 -7.65 1,169 -28.41 0.0047
2020-04-30 2020-03-31 13F PACKAGING CORP AMER COM 695156109 13,464 -1,116 1,169 4,685.6156
2021-01-19 2019-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 14,580 -8,252 -36.14 1,633 -32.60 0.0052
2020-02-06 2019-12-31 13F PACKAGING CORP AMER COM 695156109 14,580 -8,252 1,633 5,223.0249
2021-01-19 2019-09-30 13F/A-1 PACKAGING CORP AMER COM 695156109 22,832 -9,601 -29.60 2,423 -21.66 0.0086
2019-10-17 2019-09-30 13F PACKAGING CORP AMER COM 695156109 22,832 -9,601 2,423 8,542.0715
2021-01-19 2019-06-30 13F/A-1 PACKAGING CORP AMER COM 695156109 32,433 -3,062 -8.63 3,093 -12.31 0.0109
2019-07-19 2019-06-30 13F PACKAGING CORP AMER COM 695156109 32,433 -3,062 3,093 10,906.7270
2021-01-19 2019-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 35,495 -7,225 -16.91 3,527 -1.12 0.0130
2019-05-02 2019-03-31 13F PACKAGING CORP AMER COM 695156109 35,495 -7,225 3,527 12,949.8893
2021-01-19 2018-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 42,720 -5,483 -11.37 3,567 -32.55 0.0160
2019-02-08 2018-12-31 13F PACKAGING CORP AMER COM 695156109 42,720 -5,483 3,567 15,988.9007
2021-01-19 2018-09-30 13F/A-1 PACKAGING CORP AMER COM 695156109 48,203 -220,834 -82.08 5,288 -82.43 0.0209
2018-10-25 2018-09-30 13F PACKAGING CORP AMER COM 695156109 48,203 -220,834 5,288
2021-01-19 2018-06-30 13F/A-1 PACKAGING CORP AMER COM 695156109 269,037 -17,825 -6.21 30,095 -6.95 0.1371
2018-08-03 2018-06-30 13F PACKAGING CORP AMER COM 695156109 269,037 -17,825 30,095
2021-01-19 2018-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 286,862 885 0.31 32,343 -6.21 0.1518
2018-05-07 2018-03-31 13F PACKAGING CORP AMER COM 695156109 286,862 885 32,343 151,253.0815
2021-01-19 2017-12-31 13F/A-1 PACKAGING CORP AMER COM 695156109 285,977 24,289 9.28 34,486 14.91 0.1787
2018-01-25 2017-12-31 13F PACKAGING CORP AMER COM 695156109 285,977 24,289 34,486
2021-01-19 2017-09-30 13F/A-1 PACKAGING CORP AMER COM 695156109 261,688 -9,660 -3.56 30,012 -0.70 0.1864
2017-10-17 2017-09-30 13F PACKAGING CORP AMER COM 695156109 261,688 -9,660 30,012 185,934.8685
2021-01-19 2017-06-30 13F/A-1 PACKAGING CORP AMER COM 695156109 271,348 16,563 6.50 30,225 29.48 0.1947
2017-08-07 2017-06-30 13F PACKAGING CORP AMER COM 695156109 271,348 16,563 30,225 196,789.0922
2021-01-19 2017-03-31 13F/A-1 PACKAGING CORP AMER COM 695156109 254,785 17,066 7.18 23,343 15.75 0.1554
2017-05-15 2017-03-31 13F PACKAGING CORP AMER COM 695156109 254,785 17,066 23,343 155,042.7963
2017-02-09 2016-12-31 13F PACKAGING CORP AMER COM 695156109 237,719 196,114 471.37 20,166 496.10 0.1578
2016-11-07 2016-09-30 13F PACKAGING CORP AMER COM 695156109 41,605 41,605 0.00 3,383 0.0250
2015-02-12 2014-12-31 13F PACKAGING CORP AMER COM 695156109 0 -10,371 -100.00 0 -100.00
2014-11-10 2014-09-30 13F PACKAGING CORP AMER COM 695156109 10,371 -2,429 -18.98 662 -26.53 0.0047
2014-05-07 2014-03-31 13F PACKAGING CORP AMER COM 695156109 12,800 12,800 901 0.0069
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.