William Blair & Company
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William Blair & Company’s NiSource NI Stock Holding History

William Blair & Company’s Portfolio NI Stock Details NI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.15M Buy
24,647
+1,209
+5% +$54.5K ﹤0.01% 897
2025
Q4 		$979K Buy
23,438
+338
+1% +$14.4K ﹤0.01% 949
2025
Q3 		$1M Sell
23,100
-202
-0.9% -$8.36K ﹤0.01% 919
2025
Q2 		$940K Buy
23,302
+1,657
+8% +$65K ﹤0.01% 916
2025
Q1 		$868K Buy
21,645
+575
+3% +$22.1K ﹤0.01% 924
2024
Q4 		$775K Sell
21,070
-1,711
-8% -$61.4K ﹤0.01% 978
2024
Q3 		$789K Buy
22,781
+135
+0.6% +$4.31K ﹤0.01% 973
2024
Q2 		$652K Sell
22,646
-1,335
-6% -$37.7K ﹤0.01% 1017
2024
Q1 		$663K Sell
23,981
-428
-2% -$11.3K ﹤0.01% 1008
2023
Q4 		$648K Buy
24,409
+317
+1% +$8.15K ﹤0.01% 998
2023
Q3 		$595K Sell
24,092
-314
-1% -$8.48K ﹤0.01% 1005
2023
Q2 		$668K Buy
24,406
+200
+0.8% +$5.55K ﹤0.01% 973
2023
Q1 		$677K Buy
24,206
+300
+1% +$8.21K ﹤0.01% 945
2022
Q4 		$656K Sell
23,906
-1,891
-7% -$49.7K ﹤0.01% 959
2022
Q3 		$650K Buy
25,797
+565
+2% +$16.6K ﹤0.01% 962
2022
Q2 		$744K Buy
25,232
+1,350
+6% +$40.9K ﹤0.01% 946
2022
Q1 		$759K Sell
23,882
-1,491
-6% -$43.3K ﹤0.01% 1017
2021
Q4 		$701K Buy
25,373
+840
+3% +$21.4K ﹤0.01% 1085
2021
Q3 		$594K Buy
24,533
+144
+0.6% +$3.59K ﹤0.01% 1097
2021
Q2 		$598K Sell
24,389
-49
-0.2% -$1.25K ﹤0.01% 1090
2021
Q1 		$589K Sell
24,438
-1,062
-4% -$23.9K ﹤0.01% 1066
2020
Q4 		$585K Buy
25,500
+13
+0.1% +$304 ﹤0.01% 1038
2020
Q3 		$561K Sell
25,487
-662
-3% -$15.4K ﹤0.01% 936
2020
Q2 		$595K Sell
26,149
-577
-2% -$13.9K ﹤0.01% 890
2020
Q1 		$667K Sell
26,726
-874
-3% -$24.2K ﹤0.01% 788
2019
Q4 		$768K Buy
27,600
+4,106
+17% +$113K ﹤0.01% 852
2019
Q3 		$703K Buy
23,494
+760
+3% +$22.3K ﹤0.01% 843
2019
Q2 		$655K Buy
22,734
+165
+0.7% +$4.65K ﹤0.01% 893
2019
Q1 		$647K Sell
22,569
-595
-3% -$16K ﹤0.01% 874
2018
Q4 		$587K Buy
23,164
+1,111
+5% +$28.7K ﹤0.01% 860
2018
Q3 		$550K Sell
22,053
-2,250
-9% -$59.5K ﹤0.01% 930
2018
Q2 		$639K Buy
24,303
+1,000
+4% +$24.5K ﹤0.01% 862
2018
Q1 		$557K Sell
23,303
-86
-0.4% -$2.04K ﹤0.01% 886
2017
Q4 		$600K Sell
23,389
-2,064
-8% -$54.8K ﹤0.01% 905
2017
Q3 		$651K Sell
25,453
-61
-0.2% -$1.6K ﹤0.01% 845
2017
Q2 		$647K Buy
25,514
+15,831
+163% +$395K ﹤0.01% 889
2017
Q1 		$232K Sell
9,683
-2,701
-22% -$61.8K ﹤0.01% 1172
2016
Q4 		$274K Buy
12,384
+349
+3% +$7.76K ﹤0.01% 1037
2016
Q3 		$290K Sell
12,035
-475
-4% -$11.9K ﹤0.01% 1026
2016
Q2 		$332K Buy
+12,510
New +$300K ﹤0.01% 943

Other funds holding NI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $303B AUM 30.15% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

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

William Blair & Company increased its NiSource (NI) stake by 5.2% in Q1 2026, buying an estimated $54.5K and bringing the position to 24,647 shares worth $1.15M. The position accounts for ﹤0.01% of the portfolio, ranked #897.

William Blair & Company first reported a position in NI in Q2 2016 and has held it in 40 quarters since. 878 funds tracked by Wall St. Rank hold NI as of Q1 2026.

  • William Blair & Company held 24,647 shares of NiSource worth $1.15M as of Q1 2026.
  • William Blair & Company bought 1,209 NiSource shares in Q1 2026, an estimated $54.5K.
  • NiSource made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #897 holding.
  • William Blair & Company first reported a position in NiSource in Q2 2016 and has held it in 40 quarters since.
  • 878 funds tracked by Wall St. Rank held NiSource as of Q1 2026.

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