Early Access — free while we kick the tires
EdgarHawk

PKG PACKAGING CORP OF AMERICA Insider Trading

Latest: Chair Sold $2.0M of Shares · May 2026

Multiple insiders have been active at PACKAGING CORP OF AMERICA (PKG): 6 distinct insiders account for 0 buy filings and 10 sell filings as of May 2026. Its highest-significance filing in the last 90 days: Chair Mark W Kowlzan sold $2.0M, transaction dated May 2026.

10 filings analyzed · Latest 2026-05-28

Get alerts for PKG

Free Form 4 email alerts, scored for significance — see how.

Buys
0
Sells
10
Insiders
6
Direction
Net selling

PACKAGING CORP OF AMERICA leadership

CEO
Mark W. Kowlzan — Chief Executive Officer
CFO
Kent A. Pflederer — Chief Financial Officer
Chair
Mark W. Kowlzan — Chairman and Chief Executive Officer

Historically, stocks have lagged the S&P 500 by a median ~4% over the 90 days after a high insider sell (n ≈ 3,996, 2024-2026). Past results don't predict the future. How we measure this ↗

May 2026
2026-05-28
high
Chairman & CEO
9,266 shares
$2,011,426
@ $217.08
Significance 6

Mark W Kowlzan (CEO) sold 9,266 shares ($2.0M) at $217.08; maintains 473.6K shares. Stock -12.6% from 52-week high.

Mark W Kowlzan, as Chairman & CEO, sold 9,266 shares (9.3K shares) on 2026-05-27 for a total value of $2,011,426.22, reducing his holdings by 1.9% to 473.6K shares. His cross-ticker track record shows 5 prior sells with a 90-day well-timed rate of 100.00%, and at PKG specifically, all 5 prior sells (conducted between March 2024 and September 2025) were well-timed at the 90-day mark, with post-sale declines ranging from 1.7% to 13.3%. The current stock price of $218.14 is 12.6% below the 52-week high of $249.51 and has declined 2.0% over the past 30 days and 6.0% over the past 90 days. While the transaction is modest relative to his total holdings and the company's fundamentals remain solid (annual revenue growth of 7.2%, P/E of 26.22), the consistency of his prior well-timed exits at this ticker and his demonstrated pattern across holdings suggests this sale warrants monitoring for potential weakness ahead.

February 2026
2026-02-09
medium
President
12,129 shares
$2,795,734
@ $230.50
Significance 5

PKG President Hassfurther sold 12,129 shares at $230.50; holds 197,062 post-sale near 52-week high.

Thomas A Hassfurther, President of Packaging Corp of America, sold 12,129 shares on 2026-02-05 at $230.50, reducing his holdings by 5.8% to 197,062 shares. The sale occurred near the stock's 52-week high of $238.86 (current price $238.71, -0.1% from peak), following an 8.8% gain over the prior 30 days and 17.6% gain over 90 days. Among Hassfurther's prior five sales at PKG, three exhibited negative 90-day returns (well-timed), while the latest transaction's timing cannot yet be assessed. The company's fundamentals remain solid with annual revenue growth of 7.4% and a P/E of 24.04, though the valuation reflects recent momentum gains.

September 2025
2025-09-15
high
Chairman & CEO
25,000 shares
$5,399,250
@ $215.97
Significance 6

CEO Kowlzan sold 25,000 PKG shares at $215.97 on 9/11/25; stock down 14.9% from 52-week high, 4 of 4 prior PKG sales showed negative 90-day returns.

Mark Kowlzan, Chairman & CEO, sold 25,000 shares (25.0K shares) of Packaging Corp of America at $215.97 on 2025-09-11 for $5,399,250.00, reducing his holdings to 437,378 shares (437.4K shares). The sale occurred when PKG traded at -14.9% from its 52-week high of $248.85, and the stock has gained 9.5% over the 30-day period leading up to the sale. His same-ticker history shows a notable pattern: all 4 prior sales at PKG (2024-11-08, 2024-11-07, 2024-11-06, and 2024-03-04) delivered negative 90-day returns of -11.7%, -12.2%, -13.3%, and -1.7% respectively, indicating a 100% well-timed track record at this ticker. His cross-ticker track record across all open-market activity reports a 90-day well-timed rate of 100.00% on 4 prior sells, with an average 90-day return of -9.7%, further corroborating a pattern of selling before declines. The stock is currently trading at $211.81, already 1.8% below the transaction price, and the company's strong fundamentals (annual revenue growth of +7.4%, P/E of 21.08, $2.2B quarterly revenue) provide no apparent distress signal. The convergence of depressed valuation positioning relative to the 52-week range and the insider's historical pattern of executing sales ahead of subsequent losses warrants monitoring of near-term price action to assess whether this transaction again precedes a decline.

November 2024
2024-11-22
medium
10,500 shares
$2,571,555
@ $244.91
Significance 4

PKG Director Stecko sells 10,500 shares ($2.6M) at $244.91; stock now at $246.39 near 52-week high

Director Paul T. Stecko sold 10,500 shares of Packaging Corp of America at $244.91 on 2024-11-21 for $2,571,555.00, reducing his holdings by 54.2% from 19,381 to 8,881 shares. The sale occurred near the 52-week high of $246.39, with the stock up 7.8% over the past 30 days and 20.9% over 90 days. Stecko's prior sale at this ticker on 2023-10-31 showed a 90d return of 10.2%, indicating his last exit was poorly timed as the stock subsequently rose. Against this backdrop, the current sale at the company's elevated valuation (P/E 28.62) and near the 52-week peak warrants observation, though annual revenue has declined 8.0% year-over-year.

2024-11-14
medium
8,000 shares
$1,921,600
@ $240.20
Significance 5

SVP Shirley Donald R. sold 8,000 shares of PKG at $240.20 on 2024-11-12, reducing stake by -33.7% to 15.7K shares.

Shirley Donald R., SVP of Packaging Corp of America, sold 8,000 shares (33.7% of holdings) at $240.20 on 2024-11-12 for $1.9M. The sale occurred near the 52-week high of $241.59, with the stock currently trading at $235.60, down 2.5% from that peak. His prior PKG sale on 2024-07-25 posted a 90-day return of +16.5%, meaning the stock rose after that sale—a poorly-timed outcome from a sell perspective. The cross-ticker track record shows 0 of 1 prior sells were well-timed at 90 days, with an average 90-day return of +16.5%, indicating this insider's sell timing has historically been poor. PKG fundamentals show annual revenue decline of -8.0% and a P/E of 27.36, though the company reported $2.2B in quarterly revenue and $238.1M in net income.

2024-11-12
medium
EVP & CFO
12,500 shares
$3,007,738
@ $240.62
Significance 4

PKG CFO Mundy sells 12,500 shares ($3.0M) at $240.62; holds 44.0K post-sale as stock trades near 52-week high

Robert P. Mundy, EVP & CFO of Packaging Corp of America, sold 12,500 shares on 2024-11-08 at $240.62, representing a -22.1% reduction in his holdings to 44.0K shares. The sale occurred near the company's 52-week high of $241.59, with the stock up 10.0% over the prior 30 days and 23.4% over 90 days. Mundy's cross-ticker insider track record shows 1 prior sell with a 90-day well-timed rate of 100.00%, and his prior PKG sale on 2024-03-06 produced a 90d return of -0.3%—indicating that sale preceded a near-term decline. The company's fundamentals show revenue of $2.2B (latest quarter) with -8.0% annual revenue growth, and a P/E of 27.85. This sale follows a substantial appreciation phase and reduces executive holdings by a material percentage, though the CFO retains significant equity stake.

2024-11-08
high
Chairman & CEO
66,640 shares
$15,995,682
@ $240.03
Significance 6

PKG CEO Kowlzan sells 66,640 shares for $15,995,682.51 across 3 days; near 52-week high of $241.59

CEO Mark W Kowlzan executed 3 separate sales totaling 66,640 shares for $15,995,682.51 at a blended average price of $240.03 during November 6–8, 2024, reducing his holdings by 13.6% from 490,115 to 423,475 shares. The transactions occurred near the 52-week high of $241.59 (current price $240.59 is -0.4% from that peak), following a 30-day rally of +11.2% and a 90-day gain of +24.0%. His cross-ticker track record shows 1 prior sell with a 90-day well-timed rate of 100.00%, and his only prior PKG sale on 2024-03-04 was also well-timed (90d return -1.7%), establishing a pattern of selling at strategically positioned moments. The company's fundamentals show revenue of $2,182,400,000.00 with net income of $238,100,000.00 but annual revenue growth contracted -8.0% year-over-year, and the P/E of 27.94 sits elevated relative to historical norms. The sale's magnitude, timing near recent highs following sustained gains, and the insider's consistent execution history merit investor attention.

2024-11-08
medium
Exec. VP
19,738 shares
$4,777,427
@ $242.04
Significance 4

PKG Exec. VP Hassfurther sells 19,738 shares for $4.8M amid strong 30-day run (+11.2%); stock at -0.4% from 52-week high.

Thomas A Hassfurther, Executive Vice President, executed 2 separate sales totaling 19,738 shares for $4,777,427.22 on 2024-11-06 and 2024-11-07, reducing his holdings by 9.9%. The sales occurred near the 52-week high ($241.59), with the stock currently at $240.59, and follow a sharp 30-day run of +11.2% and a 90-day appreciation of +24.0%. Across Hassfurther's prior transaction history at PKG, his 3 same-ticker sells have been mixed: 1 of 3 generated negative 90-day returns (well-timed), while 2 generated positive returns (poorly timed). His cross-ticker track record shows an average 90-day return of +1.1% after sells with a 33.33% well-timed rate, suggesting limited predictive accuracy. The timing pattern here—sales near the 52-week high after a prolonged rally—is factually notable but his historical performance at this ticker does not establish a reliable pattern of anticipating subsequent declines.

July 2024
2024-07-29
medium
6,000 shares
$1,177,680
@ $196.28
Significance 5

SVP Shirley Donald R. sold 6,000 shares of PKG at $196.28 for $1.2M on July 25, 2024

Shirley Donald R., SVP at Packaging Corp of America, sold 6,000 shares at $196.28 on 2024-07-25, representing a -22.4% reduction in her holdings from 26,772 to 20,772 shares. The sale occurred at a price -0.3% from the 52-week high of $199.00, and the stock has since appreciated 8.7% over the 30-day period and 14.7% over 90 days. The company faces a concerning -8.0% annual revenue decline despite the stock's recent strength, though the reported P/E of 19840.00 appears anomalous. The discrete, material reduction in SVP holdings warrants monitoring as context for assessing executive confidence in the forward outlook.

2024-07-29
medium
EVP-Mill Ops.
5,389 shares
$1,057,753
@ $196.28
Significance 4

EVP Carter reduces PKG stake by 5,389 shares ($1.1M) at $196.28; post-trade holdings 25.5K shares; stock now -0.3% from 52-week high.

Carter Charles J., an Executive Vice President overseeing Mill Operations, sold 5,389 shares of Packaging Corp of America at $196.28, reducing his holdings from 30.9K to 25.5K shares (a 17.4% reduction in stake). The transaction occurred near the 52-week high of $199.00, with the stock trading at $198.40 currently, placing this sale at the upper end of recent price action. His cross-ticker track record shows a 90-day well-timed rate of 100% across 1 prior sell, though his same-ticker history at PKG—a single prior sale from July 2023—posted a 90-day return of -0.5%, indicating the stock declined modestly post-sale. The company faces headwinds: annual revenue contracted 8.0% year-over-year despite the recent 14.7% gain over 90 days in the stock price, suggesting the equity has recovered recently while underlying demand remains under pressure.

More Paper and Allied Products companies