Packaging Corporation of America (PKG)

As of 30 September 2026, short interest in PKG is 2,967,488 shares, up 295,890 shares over the last month. Over the last 48 readings it ranged from 1,096,171 shares (29 November 2024) to 5,228,241 shares (13 March 2026). At the reported average volume of 611K shares a day that is 4.9 days to cover.

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As of 9 October 2026, the short share of PKG volume is 74.8%, down 2.3 points over the last five sessions. Over the last 30 readings it ranged from 36.5% (25 September 2026) to 81.5% (24 September 2026). The latest reading is 13.9 points above the 30-session average of 60.9%, on 148K shares reported.

As of 4 September 2026, the fails-to-deliver balance in PKG is 77 shares, down 1,074 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (10 August 2026) to 54,854 shares (23 March 2026). The latest reading sits at the bottom of that range.

Insiders at PKG reported 4 open-market sells worth $10.2M in the last 90 days and no open-market buys. Latest filing: Shirley Donald R. (Exec. VP) on 2026-08-20.

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

4 Form 144 notices on file for PKG worth $18.6M at the prices reported; 1 in the last 90 days worth $7.3M. Latest: Hassfurther Thomas A filed on 2026-07-28 to sell 28,391 shares ($7.3M) from 2026-07-28.

3 holders report 5% or more of PKG in their latest filing, all on Schedule 13G (passive). The largest reported stake is Vanguard Capital Management at 7.5% of the class (6,717,139 shares), filed 2026-04-30 for an event on 2026-03-31.

5 of the 30 tracked managers held PKG at their latest 13F, $560.6M in total at quarter-end prices. Millennium Management is the largest at $403.3M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 3 cut.

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

In Q2 FY 2026 (quarter ended 2026-06-30) Packaging Corporation of America reported revenue of $2.49B, up 14.7% from the same quarter a year earlier, and net income of $192.1M (2.15 diluted EPS). In FY 2025 it generated $1.56B of operating cash flow and spent $153.0M on buybacks and $449.6M on dividends. As of 2026-06-30, cash was $442.8M against $3.97B of debt.

Quarterly, last 8 quarters

Fiscal years, with buybacks and dividends

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-31 from the cover page.