William Blair Investment Management
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William Blair Investment Management’s Microsoft MSFT Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$1.98B Sell
3,981,721
-145,482
-4% -$72.4M 5.26% 1
2025
Q1
$1.55B Sell
4,127,203
-303,951
-7% -$114M 4.35% 1
2024
Q4
$1.87B Sell
4,431,154
-131,324
-3% -$55.4M 4.56% 1
2024
Q3
$1.96B Buy
4,562,478
+56,022
+1% +$24.1M 4.84% 1
2024
Q2
$2.01B Buy
4,506,456
+178,718
+4% +$79.9M 5.28% 1
2024
Q1
$1.82B Buy
4,327,738
+405,344
+10% +$171M 4.71% 1
2023
Q4
$1.47B Buy
3,922,394
+119,738
+3% +$45M 4.29% 1
2023
Q3
$1.2B Buy
3,802,656
+314,571
+9% +$99.3M 3.99% 1
2023
Q2
$1.19B Buy
3,488,085
+124,931
+4% +$42.5M 3.81% 1
2023
Q1
$970M Buy
3,363,154
+147,886
+5% +$42.6M 3.38% 2
2022
Q4
$771M Sell
3,215,268
-6,534
-0.2% -$1.57M 2.95% 1
2022
Q3
$750M Buy
3,221,802
+12,606
+0.4% +$2.94M 2.97% 1
2022
Q2
$824M Buy
3,209,196
+525,013
+20% +$135M 3.05% 1
2022
Q1
$828M Buy
2,684,183
+165,512
+7% +$51M 2.47% 2
2021
Q4
$847M Buy
2,518,671
+636,404
+34% +$214M 2.29% 2
2021
Q3
$531M Sell
1,882,267
-80,538
-4% -$22.7M 1.5% 2
2021
Q2
$532M Buy
1,962,805
+36,267
+2% +$9.82M 1.67% 3
2021
Q1
$454M Buy
1,926,538
+244,392
+15% +$57.6M 1.47% 4
2020
Q4
$374M Buy
1,682,146
+213,201
+15% +$47.4M 1.25% 11
2020
Q3
$309M Sell
1,468,945
-25,584
-2% -$5.38M 1.2% 11
2020
Q2
$304M Buy
1,494,529
+286,751
+24% +$58.4M 1.24% 10
2020
Q1
$190M Sell
1,207,778
-3,237
-0.3% -$511K 0.93% 27
2019
Q4
$191M Buy
1,211,015
+146,867
+14% +$23.2M 0.76% 36
2019
Q3
$148M Sell
1,064,148
-31,934
-3% -$4.44M 0.63% 53
2019
Q2
$147M Sell
1,096,082
-21,024
-2% -$2.82M 0.62% 57
2019
Q1
$132M Sell
1,117,106
-21,476
-2% -$2.53M 0.55% 58
2018
Q4
$116M Sell
1,138,582
-1,097,207
-49% -$111M 0.57% 56
2018
Q3
$256M Sell
2,235,789
-118,971
-5% -$13.6M 0.89% 19
2018
Q2
$232M Sell
2,354,760
-84,818
-3% -$8.36M 0.86% 19
2018
Q1
$223M Sell
2,439,578
-270,927
-10% -$24.7M 0.85% 25
2017
Q4
$232M Sell
2,710,505
-918,608
-25% -$78.6M 0.9% 21
2017
Q3
$270M Sell
3,629,113
-649,648
-15% -$48.4M 0.97% 25
2017
Q2
$295M Sell
4,278,761
-148,521
-3% -$10.2M 1.07% 16
2017
Q1
$292M Sell
4,427,282
-196,426
-4% -$12.9M 1.1% 13
2016
Q4
$287M Sell
4,623,708
-45,401
-1% -$2.82M 1.15% 15
2016
Q3
$269M Buy
4,669,109
+844,634
+22% +$48.7M 1.02% 18
2016
Q2
$196M Buy
3,824,475
+20,890
+0.5% +$1.07M 0.77% 37
2016
Q1
$210M Buy
3,803,585
+2,274,329
+149% +$126M 0.83% 33
2015
Q4
$84.8M Buy
1,529,256
+1,520,324
+17,021% +$84.3M 0.34% 104
2015
Q3
$395K Buy
+8,932
New +$395K ﹤0.01% 1012