William Blair & Company’s Vanguard S&P 500 ETF VOO Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$288M Buy
419,372
+21,992
+6% +$14.7M 0.75% 27
2026
Q1
$237M Buy
397,380
+22,150
+6% +$13.9M 0.68% 31
2025
Q4
$235M Buy
375,230
+45,211
+14% +$28.1M 0.63% 33
2025
Q3
$202M Buy
330,019
+26,239
+9% +$15.5M 0.54% 49
2025
Q2
$173M Buy
303,780
+12,469
+4% +$6.55M 0.48% 56
2025
Q1
$150M Buy
291,311
+36,277
+14% +$19.6M 0.45% 60
2024
Q4
$137M Buy
255,034
+14,962
+6% +$8.1M 0.4% 62
2024
Q3
$127M Buy
240,072
+12,884
+6% +$6.55M 0.37% 64
2024
Q2
$114M Buy
227,188
+40,055
+21% +$19.3M 0.35% 70
2024
Q1
$90M Buy
187,133
+11,776
+7% +$5.39M 0.28% 88
2023
Q4
$76.6M Buy
175,357
+5,802
+3% +$2.38M 0.26% 91
2023
Q3
$66.6M Buy
169,555
+7,999
+5% +$3.27M 0.26% 93
2023
Q2
$65.8M Buy
161,556
+22,410
+16% +$8.65M 0.24% 95
2023
Q1
$52.3M Buy
139,146
+7,580
+6% +$2.78M 0.21% 111
2022
Q4
$46.2M Buy
131,566
+15,238
+13% +$5.38M 0.2% 112
2022
Q3
$38.2M Buy
116,328
+16,209
+16% +$5.92M 0.18% 125
2022
Q2
$34.7M Buy
100,119
+3,514
+4% +$1.32M 0.15% 136
2022
Q1
$40.1M Buy
96,605
+5,276
+6% +$2.16M 0.14% 151
2021
Q4
$39.9M Buy
91,329
+15,171
+20% +$6.4M 0.13% 155
2021
Q3
$30M Buy
76,158
+2,086
+3% +$846K 0.1% 176
2021
Q2
$29.1M Buy
74,072
+2,583
+4% +$992K 0.1% 181
2021
Q1
$26M Sell
71,489
-9,601
-12% -$3.4M 0.1% 186
2020
Q4
$27.9M Sell
81,090
-3,333
-4% -$1.09M 0.1% 176
2020
Q3
$26M Buy
84,423
+12,507
+17% +$3.81M 0.11% 167
2020
Q2
$20.4M Sell
71,916
-3,914
-5% -$1.05M 0.1% 178
2020
Q1
$18M Sell
75,830
-1,423
-2% -$399K 0.11% 167
2019
Q4
$22.9M Buy
77,253
+5,277
+7% +$1.49M 0.12% 179
2019
Q3
$19.6M Buy
71,976
+1,989
+3% +$540K 0.11% 179
2019
Q2
$19M Sell
69,987
-3,917
-5% -$1.04M 0.11% 177
2019
Q1
$19.2M Buy
73,904
+266
+0.4% +$66.4K 0.12% 175
2018
Q4
$18M Sell
73,638
-1,206
-2% -$299K 0.13% 161
2018
Q3
$20M Buy
74,844
+10,791
+17% +$2.82M 0.12% 170
2018
Q2
$16M Buy
64,053
+5,390
+9% +$1.34M 0.11% 181
2018
Q1
$14.2M Buy
58,663
+314
+0.5% +$78.8K 0.1% 192
2017
Q4
$14.3M Buy
58,349
+247
+0.4% +$59K 0.1% 208
2017
Q3
$13.4M Buy
58,102
+3,070
+6% +$695K 0.1% 197
2017
Q2
$12.2M Sell
55,032
-395
-0.7% -$86.9K 0.09% 216
2017
Q1
$12M Buy
55,427
+1,471
+3% +$314K 0.1% 206
2016
Q4
$11.1M Buy
53,956
+1,008
+2% +$202K 0.1% 207
2016
Q3
$10.5M Sell
52,948
-1,161
-2% -$230K 0.09% 211
2016
Q2
$10.4M Sell
54,109
-2,666
-5% -$507K 0.1% 201
2016
Q1
$10.7M Buy
56,775
+7,827
+16% +$1.4M 0.1% 189
2015
Q4
$9.15M Buy
48,948
+8,010
+20% +$1.51M 0.09% 216
2015
Q3
$7.19M Buy
40,938
+6,111
+18% +$1.14M 0.06% 265
2015
Q2
$6.58M Buy
34,827
+790
+2% +$152K 0.01% 996
2015
Q1
$6.44M Buy
34,037
+4,420
+15% +$837K 0.01% 965
2014
Q4
$5.58M Buy
29,617
+615
+2% +$113K 0.01% 1025
2014
Q3
$5.24M Buy
29,002
+3,400
+13% +$616K 0.01% 1015
2014
Q2
$4.59M Buy
25,602
+15,930
+165% +$2.78M 0.01% 1021
2014
Q1
$1.66M Buy
9,672
+1,200
+14% +$202K ﹤0.01% 1255
2013
Q4
$1.43M Buy
8,472
+2,904
+52% +$471K ﹤0.01% 1279
2013
Q3
$857K Buy
5,568
+1,798
+48% +$276K ﹤0.01% 1375
2013
Q2
$553K Buy
+3,770
New +$556K ﹤0.01% 1475

Other funds holding VOO

William Blair & Company's VOO Position: Q2 2026 in Review

William Blair & Company increased its Vanguard S&P 500 ETF (VOO) stake by 5.5% in Q2 2026, buying an estimated $14.7M and bringing the position to 419,372 shares worth $288M. The position accounts for 0.75% of the portfolio, ranked #27.

William Blair & Company first reported a position in VOO in Q2 2013 and has held it in 53 quarters since. 4,008 funds tracked by Wall St. Rank hold VOO as of Q2 2026.

  • William Blair & Company held 419,372 shares of Vanguard S&P 500 ETF worth $288M as of Q2 2026.
  • William Blair & Company bought 21,992 Vanguard S&P 500 ETF shares in Q2 2026, an estimated $14.7M.
  • Vanguard S&P 500 ETF made up 0.75% of William Blair & Company's portfolio in Q2 2026, its #27 holding.
  • William Blair & Company first reported a position in Vanguard S&P 500 ETF in Q2 2013 and has held it in 53 quarters since.
  • 4,008 funds tracked by Wall St. Rank held Vanguard S&P 500 ETF as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.