William Blair Investment Management
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William Blair Investment Management’s Old National Bancorp ONB Stock Holding History

William Blair Investment Management’s Portfolio ONB Stock Details ONB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$99.3M Sell
3,833,314
-61,484
-2% -$1.48M 0.3% 101
2026
Q1 		$86.1M Sell
3,894,798
-2,063,138
-35% -$48.2M 0.28% 99
2025
Q4 		$133M Buy
5,957,936
+88,096
+2% +$1.9M 0.37% 71
2025
Q3 		$129M Buy
5,869,840
+645,288
+12% +$14.3M 0.33% 83
2025
Q2 		$111M Sell
5,224,552
-668,121
-11% -$13.8M 0.3% 90
2025
Q1 		$125M Buy
5,892,673
+399,183
+7% +$8.98M 0.35% 81
2024
Q4 		$119M Buy
5,493,490
+3,474,578
+172% +$72.3M 0.29% 104
2024
Q3 		$37.7M Sell
2,018,912
-61,991
-3% -$1.16M 0.09% 182
2024
Q2 		$35.8M Sell
2,080,903
-4,054
-0.2% -$67.4K 0.09% 184
2024
Q1 		$36.3M Sell
2,084,957
-2,305
-0.1% -$38.1K 0.09% 203
2023
Q4 		$35.3M Sell
2,087,262
-50,095
-2% -$752K 0.1% 199
2023
Q3 		$31.1M Sell
2,137,357
-156,374
-7% -$2.42M 0.1% 205
2023
Q2 		$32M Buy
2,293,731
+42,636
+2% +$567K 0.1% 219
2023
Q1 		$32.5M Buy
2,251,095
+6,290
+0.3% +$106K 0.11% 202
2022
Q4 		$40.4M Sell
2,244,805
-84,617
-4% -$1.55M 0.15% 137
2022
Q3 		$38.4M Sell
2,329,422
-43,110
-2% -$720K 0.15% 144
2022
Q2 		$35.1M Buy
+2,372,532
New +$36.5M 0.13% 183

Other funds holding ONB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $66.6B AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

William Blair Investment Management's ONB Position: Q2 2026 in Review

William Blair Investment Management reduced its Old National Bancorp (ONB) stake by 1.6% in Q2 2026, selling an estimated $1.48M and leaving 3,833,314 shares worth $99.3M. The position accounts for 0.3% of the portfolio, ranked #101.

William Blair Investment Management first reported a position in ONB in Q2 2022 and has held it in 17 quarters since. The position peaked at $133M in Q4 2025. 455 funds tracked by Wall St. Rank hold ONB as of Q2 2026.

  • William Blair Investment Management held 3,833,314 shares of Old National Bancorp worth $99.3M as of Q2 2026.
  • William Blair Investment Management sold 61,484 Old National Bancorp shares in Q2 2026, an estimated $1.48M.
  • Old National Bancorp made up 0.3% of William Blair Investment Management's portfolio in Q2 2026, its #101 holding.
  • William Blair Investment Management first reported a position in Old National Bancorp in Q2 2022 and has held it in 17 quarters since.
  • William Blair Investment Management's Old National Bancorp position peaked at $133M in Q4 2025.
  • 455 funds tracked by Wall St. Rank held Old National Bancorp as of Q2 2026.

Based on William Blair Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.