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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+10.3%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$25B
AUM Growth
+$2.04B
Cap. Flow
+$116M
Cap. Flow %
0.46%
Top 10 Hldgs %
23.68%
Holding
1,879
New
69
Increased
680
Reduced
748
Closed
78

Top Buys

Rank Stock Value
1
NEOG icon
Neogen
NEOG
+$45.2M
2
PGR icon
Progressive
PGR
+$34.8M
3
TOST icon
Toast
TOST
+$33.8M
4
PWSC
PowerSchool Holdings, Inc.
PWSC
+$33.4M
5
UBER icon
Uber
UBER
+$30.4M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$54.2M
2
LULU icon
lululemon athletica
LULU
+$53.4M
3
PYPL icon
PayPal
PYPL
+$45.8M
4
BAH icon
Booz Allen Hamilton
BAH
+$20.2M
5
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$17.8M

Sector Composition

Rank Sector Weight
1 Technology 24.61%
2 Healthcare 19.42%
3 Financials 11.75%
4 Industrials 11.37%
5 Consumer Discretionary 8.4%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
LGTY
1126
DELISTED
Logility Supply Chain Solutions, Inc. Common Stock
LGTY
$391K ﹤0.01%
31,011
-9,598
-24% -$135K
NVCR icon
1127
NovoCure
NVCR
$2.02B
$391K ﹤0.01%
6,500
-300
-4% -$24K
VIRT icon
1128
Virtu Financial
VIRT
$5.05B
$390K ﹤0.01%
20,621
-8,078
-28% -$155K
AMPL icon
1129
Amplitude
AMPL
$1.66B
$389K ﹤0.01%
31,302
+3,835
+14% +$50.9K
ARGX icon
1130
argenx
ARGX
$53.6B
$389K ﹤0.01%
1,045
-375
-26% -$139K
EWU icon
1131
iShares MSCI United Kingdom ETF
EWU
$4.13B
$389K ﹤0.01%
12,044
-255
-2% -$8.19K
HLT icon
1132
Hilton Worldwide
HLT
$72.2B
$388K ﹤0.01%
2,755
+155
+6% +$21.8K
COOK icon
1133
Traeger
COOK
$166M
$388K ﹤0.01%
1,887
-22
-1% -$3.94K
SWKS icon
1134
Skyworks Solutions
SWKS
$10.5B
$387K ﹤0.01%
3,280
-79
-2% -$8.75K
CM icon
1135
Canadian Imperial Bank of Commerce
CM
$112B
$385K ﹤0.01%
9,081
+572
+7% +$25.1K
IYJ icon
1136
iShares US Industrials ETF
IYJ
$1.96B
$382K ﹤0.01%
3,816
-177
-4% -$17.7K
SYNH
1137
DELISTED
Syneos Health, Inc. Class A Common Stock
SYNH
$380K ﹤0.01%
10,681
-1,443
-12% -$52.4K
WH icon
1138
Wyndham Hotels & Resorts
WH
$5.51B
$380K ﹤0.01%
5,605
-6,484
-54% -$478K
CIBR icon
1139
First Trust NASDAQ Cybersecurity ETF
CIBR
$16B
$378K ﹤0.01%
8,852
-19,279
-69% -$784K
MNST icon
1140
Monster Beverage
MNST
$91.4B
$378K ﹤0.01%
14,008
+4,268
+44% +$109K
HAYW icon
1141
Hayward Holdings
HAYW
$3.24B
$373K ﹤0.01%
31,868
+2,032
+7% +$24.9K
CASY icon
1142
Casey's General Stores
CASY
$31.6B
$373K ﹤0.01%
1,723
– –
NYT icon
1143
New York Times
NYT
$10.3B
$373K ﹤0.01%
+9,582
New +$353K
XM
1144
DELISTED
Qualtrics International Inc. Class A Common Stock
XM
$372K ﹤0.01%
20,890
-2,237
-10% -$34.2K
SMMD icon
1145
iShares Russell 2500 ETF
SMMD
$3.77B
$370K ﹤0.01%
6,755
+900
+15% +$50.5K
ARWR icon
1146
Arrowhead Research
ARWR
$12.1B
$368K ﹤0.01%
14,490
-569
-4% -$17.9K
PRGO icon
1147
Perrigo
PRGO
$1.78B
$368K ﹤0.01%
10,258
– –
IYF icon
1148
iShares US Financials ETF
IYF
$4.44B
$367K ﹤0.01%
5,163
-1,262
-20% -$97.1K
EXG icon
1149
Eaton Vance Tax-Managed Global Diversified Equity Income Fund
EXG
$3.09B
$367K ﹤0.01%
46,938
-700
-1% -$5.41K
GHI icon
1150
Greystone Housing Impact Investors LP
GHI
$144M
$367K ﹤0.01%
21,561
+224
+1% +$3.97K
44 45
46
47 48

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William Blair & Company's Q1 2023 Portfolio in Review

As of Q1 2023, William Blair & Company held 1,879 positions worth $25B, up 8.9% from $23B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q1 2023 filing shows 69 new, 680 increased, 748 reduced and 78 closed positions. Its largest new stake was Neogen: 2,404,277 shares worth $44.5M. The largest sale was Alphabet (Google) Class C, an estimated $54.2M.

By sector, the portfolio is most concentrated in Technology at 25% of assets, up from 22% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2023 buy was Neogen: 2,404,277 shares worth $44.5M.
  • William Blair & Company added most to Progressive in Q1 2023, an estimated $34.8M increase.
  • William Blair & Company's biggest Q1 2023 reduction was Alphabet (Google) Class C, cutting an estimated $54.2M.
  • William Blair & Company fully exited Coupa Software Incorporated in Q1 2023, selling an estimated $2.65M.
  • William Blair & Company's ten largest holdings make up 24% of its $25B portfolio in Q1 2023.
  • William Blair & Company opened 69 new positions and closed 78 in Q1 2023.
  • William Blair & Company's portfolio value rose 8.9% quarter-over-quarter to $25B.

Based on William Blair & Company's 13F filing for Q1 2023, filed 12 May 2023.