William Blair & Company
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William Blair & Company’s Packaging Corp of America PKG Stock Holding History

William Blair & Company’s Portfolio PKG Stock Details PKG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$981K Buy
4,621
+1,329
+40% +$296K ﹤0.01% 949
2025
Q4 		$679K Buy
3,292
+992
+43% +$202K ﹤0.01% 1044
2025
Q3 		$501K Buy
2,300
+213
+10% +$43.9K ﹤0.01% 1117
2025
Q2 		$393K Sell
2,087
-79
-4% -$14.9K ﹤0.01% 1159
2025
Q1 		$429K Buy
2,166
+149
+7% +$31.8K ﹤0.01% 1128
2024
Q4 		$454K Sell
2,017
-136
-6% -$31.5K ﹤0.01% 1129
2024
Q3 		$464K Sell
2,153
-11
-0.5% -$2.19K ﹤0.01% 1141
2024
Q2 		$395K Buy
2,164
+7
+0.3% +$1.27K ﹤0.01% 1169
2024
Q1 		$409K Sell
2,157
-3
-0.1% -$520 ﹤0.01% 1139
2023
Q4 		$352K Buy
2,160
+209
+11% +$32.9K ﹤0.01% 1178
2023
Q3 		$300K Buy
1,951
+4
+0.2% +$584 ﹤0.01% 1234
2023
Q2 		$257K Buy
1,947
+395
+25% +$52.8K ﹤0.01% 1310
2023
Q1 		$215K Buy
+1,552
New +$211K ﹤0.01% 1376
2022
Q3 		– Sell
-1,516
Closed -$208K – 1873
2022
Q2 		$208K Buy
1,516
+113
+8% +$17.5K ﹤0.01% 1405
2022
Q1 		$219K Sell
1,403
-68
-5% -$9.93K ﹤0.01% 1486
2021
Q4 		$200K Sell
1,471
-182
-11% -$24.5K ﹤0.01% 1578
2021
Q3 		$227K Buy
+1,653
New +$236K ﹤0.01% 1438
2018
Q1 		– Sell
-7,081
Closed -$854K – 1564
2017
Q4 		$854K Sell
7,081
-513
-7% -$59.5K 0.01% 789
2017
Q3 		$871K Sell
7,594
-296
-4% -$33.1K 0.01% 763
2017
Q2 		$879K Sell
7,890
-29
-0.4% -$2.92K 0.01% 794
2017
Q1 		$732K Sell
7,919
-39
-0.5% -$3.58K 0.01% 789
2016
Q4 		$675K Sell
7,958
-541
-6% -$45.4K 0.01% 742
2016
Q3 		$691K Buy
8,499
+2,529
+42% +$193K 0.01% 739
2016
Q2 		$400K Buy
+5,970
New +$390K ﹤0.01% 879

Other funds holding PKG

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
DAM
Diamant Asset Management Ridgefield, Connecticut $147M AUM 25.76% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Fidelity International
Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return

William Blair & Company's PKG Position: Q1 2026 in Review

William Blair & Company increased its Packaging Corp of America (PKG) stake by 40% in Q1 2026, buying an estimated $296K and bringing the position to 4,621 shares worth $981K. The position accounts for ﹤0.01% of the portfolio, ranked #949.

William Blair & Company first reported a position in PKG in Q2 2016 and has held it in 24 quarters since. 878 funds tracked by Wall St. Rank hold PKG as of Q1 2026.

  • William Blair & Company held 4,621 shares of Packaging Corp of America worth $981K as of Q1 2026.
  • William Blair & Company bought 1,329 Packaging Corp of America shares in Q1 2026, an estimated $296K.
  • Packaging Corp of America made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #949 holding.
  • William Blair & Company first reported a position in Packaging Corp of America in Q2 2016 and has held it in 24 quarters since.
  • 878 funds tracked by Wall St. Rank held Packaging Corp of America as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.