What does CUSIP 695156109 represent in this 13F holders report?

CUSIP 695156109 is the security identifier for PKG - PACKAGING CORP OF AMERICA - COMMON STOCK used to aggregate holder disclosures.

How many institutions held PKG - PACKAGING CORP OF AMERICA - COMMON STOCK in Q1 2021?

576 institutional investors reported PKG - PACKAGING CORP OF AMERICA - COMMON STOCK for Q1 2021. Use the holders table for investor-level position and value details.

PACKAGING CORP OF AMERICA - COMMON STOCK (PKG)

CUSIP: 695156109

Q1 2021 13F Holders as of 31 Mar 2021

Security type / class: Equity / COMMON STOCK
Total 13F shares: 85,374,663
Total 13F value: $11,478,045,137
Share change: +448,262
Put/Call ratio: 29%
SEC-reported price per share: $134.48
Number of holders: 576
Value change: +$57,380,644
Number of buys: 247
Number of sells: 288
Shares outstanding: 88,849,038

Security key

695156109

Report period

Q1 2021

Institutions

576

Top holders

PKG full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 PACKAGING CORP OF AMERICA SEC filings PACKAGING CORP OF AMERICA company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 695156109

Newer quarter: Q3 2026

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of PKG - PACKAGING CORP OF AMERICA - COMMON STOCK (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

PRICE T ROWE ASSOCIATES I...

Disclosed value leader

PRICE T ROWE ASSOCIATES I...

Comparable rows

0/15

Latest evidence

31 Dec 2020

13F Highest disclosed value: $1,575,675,000 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

PRICE T ROWE ASSOCIATES INC /MD/ has the largest disclosed position value at $1.58B.

0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens PRICE T ROWE ASSOCIATES INC /MD/'s linked filing trail.

Disclosed position value Top 5

PRICE T ROWE ASSOCIATES INC /MD/ $1.58B

VANGUARD GROUP INC $1.45B

BlackRock Finance, Inc. $1.09B

Capital World Investors $859.04M

STATE STREET CORP $571.83M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
PRICE T ROWE ASSOCIATES INC /MD/	13F Company 13F	— denominator unverified	$1,575,675,000 11,425,388 shares	—	31 Dec 2020
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$1,451,156,000 10,522,496 shares	—	31 Dec 2020
BlackRock Finance, Inc.	13F Company 13F	— denominator unverified	$1,094,433,000 7,935,869 shares	—	31 Dec 2020
Capital World Investors	13F Company 13F	— denominator unverified	$859,041,000 6,228,996 shares	—	31 Dec 2020
STATE STREET CORP	13F Company 13F	— denominator unverified	$571,831,000 4,116,597 shares	—	31 Dec 2020
JPMORGAN CHASE & CO	13F Company 13F	— denominator unverified	$458,480,000 3,324,490 shares	—	31 Dec 2020

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2021

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

576

85,374,663

Rows available

576

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2021 vs Q1 2021 Across Filers

Q1 2021 holders

576

Q1 2021 holders

576

Holder diff

Investor	Q1 2021 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q1 2021 value	Q1 2021 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend