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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
SCHW
126
Charles Schwab
SCHW
$189B
$41.9M 0.17%
799,614
+384,493
+93% +$28.2M
GWW icon
127
W.W. Grainger
GWW
$61.5B
$41.6M 0.17%
60,404
-2,016
-3% -$1.29M
ULTA icon
128
Ulta Beauty
ULTA
$22.9B
$40.5M 0.16%
74,285
-7,620
-9% -$3.91M
GILD icon
129
Gilead Sciences
GILD
$168B
$40.5M 0.16%
487,781
-32,133
-6% -$2.66M
NEE icon
130
NextEra Energy
NEE
$179B
$39.7M 0.16%
515,238
+881
+0.2% +$67.8K
CME icon
131
CME Group
CME
$94.3B
$39.2M 0.16%
204,895
-1,835
-0.9% -$332K
HON icon
132
Honeywell
HON
$74.6B
$38.7M 0.15%
214,702
+2,853
+1% +$536K
CVS icon
133
CVS Health
CVS
$121B
$37.8M 0.15%
509,300
-11,618
-2% -$974K
BSV icon
134
Vanguard Short-Term Bond ETF
BSV
$45.6B
$37.5M 0.15%
490,398
-75,201
-13% -$5.7M
AVGO icon
135
Broadcom
AVGO
$1.98T
$37.1M 0.15%
578,510
+15,850
+3% +$954K
BAC icon
136
Bank of America
BAC
$453B
$36.7M 0.15%
1,282,114
-65,403
-5% -$2.16M
RBA icon
137
RB Global
RBA
$16B
$35.8M 0.14%
635,779
-21,501
-3% -$1.27M
ONT
138
Onterris Inc
ONT
$576M
$35.8M 0.14%
1,002,737
+203,696
+25% +$9.22M
WST icon
139
West Pharmaceutical
WST
$24.8B
$35.7M 0.14%
102,930
+4,524
+5% +$1.32M
TOST icon
140
Toast
TOST
$19.7B
$34.7M 0.14%
1,955,702
+1,713,236
+707% +$33.8M
ANET icon
141
Arista Networks
ANET
$265B
$34.6M 0.14%
824,192
-5,980
-0.7% -$206K
ZBRA icon
142
Zebra Technologies
ZBRA
$17.9B
$34.1M 0.14%
107,340
+285
+0.3% +$86.1K
CSCO icon
143
Cisco
CSCO
$488B
$34M 0.14%
650,555
+10,310
+2% +$503K
MDY icon
144
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$27.2B
$33.6M 0.13%
73,196
-5,829
-7% -$2.72M
IWD icon
145
iShares Russell 1000 Value ETF
IWD
$84B
$32.6M 0.13%
214,267
+11,151
+5% +$1.72M
EMR icon
146
Emerson Electric
EMR
$91.4B
$32M 0.13%
367,792
-1,994
-0.5% -$174K
PTLO icon
147
Portillo's
PTLO
$345M
$32M 0.13%
1,498,601
+758,979
+103% +$15.9M
BAH icon
148
Booz Allen Hamilton
BAH
$9.43B
$32M 0.13%
344,910
-212,547
-38% -$20.2M
TREX icon
149
Trex
TREX
$5.05B
$31.9M 0.13%
654,737
+31,146
+5% +$1.58M
NBIX icon
150
Neurocrine Biosciences
NBIX
$15.9B
$31.6M 0.13%
311,750
+237,264
+319% +$24.7M
4 5
6
7 8

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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.