Mercer Global Advisors Inc /adv reports 43.84% decrease in ownership of PKG / Packaging Corporation of America

Packaging Corporation of America

US ˙ NYSE ˙ US6951561090

Security	PKG / Packaging Corporation of America
Institution	Mercer Global Advisors Inc /adv
Latest Disclosed Ownership	36,574 shares
Latest Disclosed Value	$ 7,761,710

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 36,574 shares of Packaging Corporation of America (US:PKG) valued at $7,761,734 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 65,127 shares of Packaging Corporation of America. This represents a change in shares of -43.84% during the quarter. The current value of the position is $8,206,840 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 Premium Registration Required .

Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-15	2026-03-31	13F	PACKAGING CORP AMER	COM	695156109	36,574	-28,553	-43.84	7,762	-42.22	0.0115
2026-02-17	2025-12-31	13F	PACKAGING CORP AMER	COM	695156109	65,127	-7,067	-9.79	13,431	-14.63	0.0205
2025-11-14	2025-09-30	13F	PACKAGING CORP AMER	COM	695156109	72,194	9,877	15.85	15,733	33.98	0.0263
2025-08-14	2025-06-30	13F	PACKAGING CORP AMER	COM	695156109	62,317	7,263	13.19	11,744	7.72	0.0239
2025-05-15	2025-03-31	13F	PACKAGING CORP AMER	COM	695156109	55,054	2,651	5.06	10,902	-7.60	0.0250
2025-02-14	2024-12-31	13F	PACKAGING CORP AMER	COM	695156109	52,403	-340	-0.64	11,797	3.89	0.0288
2024-11-14	2024-09-30	13F	PACKAGING CORP AMER	COM	695156109	52,743	5,694	12.10	11,355	32.20	0.0266
2024-08-12	2024-06-30	13F	PACKAGING CORP AMER	COM	695156109	47,049	13,575	40.55	8,589	143,050.00	0.0234
2024-05-15	2024-03-31	13F	PACKAGING CORP AMER	COM	695156109	33,474	7,926	31.02	6	50.00	0.0181
2024-02-15	2023-12-31	13F	PACKAGING CORP AMER	COM	695156109	25,548	1,900	8.03	4	33.33	0.0125
2023-11-15	2023-09-30	13F/A-1	PACKAGING CORP AMER	COM	695156109	23,648	2,860	13.76	4	50.00	0.0138
2023-11-14	2023-09-30	13F	PACKAGING CORP AMER	COM	695156109	23,648	2,860		4		0.0138
2023-08-14	2023-06-30	13F	PACKAGING CORP AMER	COM	695156109	20,788	1,705	8.93	3	0.00	0.0109
2023-05-16	2023-03-31	13F	PACKAGING CORP AMER	COM	695156109	19,083	1,738	10.02	3	0.00	0.0120
2023-02-09	2022-12-31	13F	PACKAGING CORP AMER	COM	695156109	17,345	-947	-5.18	2	-99.90	0.0111
2022-11-15	2022-09-30	13F	PACKAGING CORP AMER	COM	695156109	18,292	831	4.76	2,054	-14.45	0.0122
2022-08-10	2022-06-30	13F	PACKAGING CORP AMER	COM	695156109	17,461	3,619	26.15	2,401	11.11	0.0147
2022-05-10	2022-03-31	13F	PACKAGING CORP AMER	COM	695156109	13,842	11,601	517.67	2,161	608.52	0.0127
2022-02-04	2021-12-31	13F	PACKAGING CORP AMER	COM	695156109	2,241	129	6.11	305	5.17	0.0019
2021-11-10	2021-09-30	13F	PACKAGING CORP AMER	COM	695156109	2,112	-156	-6.88	290	-5.54	0.0020
2021-08-10	2021-06-30	13F	PACKAGING CORP AMER	COM	695156109	2,268	-3,974	-63.67	307	-63.41	0.0024
2021-08-10	2021-03-31	13F/A-1	PACKAGING CORP AMER	COM	695156109	6,242	478	8.29	839	5.53	0.0076
2021-05-11	2021-03-31	13F	PACKAGING CORP AMER	COM	695156109	6,242	478		839		0.0080
2021-02-12	2020-12-31	13F	PACKAGING CORP AMER	COM	695156109	5,764	453	8.53	795	37.31	0.0099
2020-12-10	2020-09-30	13F	PACKAGING CORP AMER COM	COM	695156109	5,311	-181	-3.30	579	5.66	0.0087
2020-08-10	2020-06-30	13F	PACKAGING CORP AMER	COM	695156109	5,492	5,492		548		0.0099
2020-05-16	2020-03-31	13F	PACKAGING CORP AMER COM	COM	695156109	0	-3,219	-100.00	0	-100.00
2020-02-13	2019-12-31	13F	PACKAGING CORP AMER COM	COM	695156109	3,219	-16,782	-83.91	360	-83.03	0.0072
2019-11-12	2019-09-30	13F	PACKAGING CORP AMER COM	COM	695156109	20,001	2,127	11.90	2,122	24.53	0.0499
2019-08-14	2019-06-30	13F	PACKAGING CORP AMER COM	COM	695156109	17,874	5,145	40.42	1,704	34.70	0.0452
2019-04-23	2019-03-31	13F/A-1	PACKAGING CORP AMER COM	COM	695156109	12,729	12,729		1,265		0.0455
2019-04-12	2019-03-31	13F	PACKAGING CORP AMER COM	COM	695156109	11,029			920		0.0490

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.